Make further progress on non-x86 support

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Justine Tunney 2023-05-08 21:38:30 -07:00
parent aef9a69a60
commit 036b9a0002
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155 changed files with 2307 additions and 653 deletions

300
examples/cescapec.c Normal file
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@ -0,0 +1,300 @@
#if 0
/*─────────────────────────────────────────────────────────────────╗
To the extent possible under law, Justine Tunney has waived
all copyright and related or neighboring rights to this file,
as it is written in the following disclaimers:
http://unlicense.org/ │
http://creativecommons.org/publicdomain/zero/1.0/ │
*/
#endif
#include "libc/stdio/stdio.h"
#include "libc/str/str.h"
int _cescapec2(int);
uint32_t kCescapeC[256] = {
[0] = '\\' | '0' << 8 | '0' << 16 | '0' << 24,
[1] = '\\' | '0' << 8 | '0' << 16 | '1' << 24,
[2] = '\\' | '0' << 8 | '0' << 16 | '2' << 24,
[3] = '\\' | '0' << 8 | '0' << 16 | '3' << 24,
[4] = '\\' | '0' << 8 | '0' << 16 | '4' << 24,
[5] = '\\' | '0' << 8 | '0' << 16 | '5' << 24,
[6] = '\\' | '0' << 8 | '0' << 16 | '6' << 24,
[7] = '\\' | 'a' << 8,
[8] = '\\' | 'b' << 8,
[9] = '\\' | 't' << 8,
[10] = '\\' | 'n' << 8,
[11] = '\\' | 'v' << 8,
[12] = '\\' | 'f' << 8,
[13] = '\\' | 'r' << 8,
[14] = '\\' | '0' << 8 | '1' << 16 | '6' << 24,
[15] = '\\' | '0' << 8 | '1' << 16 | '7' << 24,
[16] = '\\' | '0' << 8 | '2' << 16 | '0' << 24,
[17] = '\\' | '0' << 8 | '2' << 16 | '1' << 24,
[18] = '\\' | '0' << 8 | '2' << 16 | '2' << 24,
[19] = '\\' | '0' << 8 | '2' << 16 | '3' << 24,
[20] = '\\' | '0' << 8 | '2' << 16 | '4' << 24,
[21] = '\\' | '0' << 8 | '2' << 16 | '5' << 24,
[22] = '\\' | '0' << 8 | '2' << 16 | '6' << 24,
[23] = '\\' | '0' << 8 | '2' << 16 | '7' << 24,
[24] = '\\' | '0' << 8 | '3' << 16 | '0' << 24,
[25] = '\\' | '0' << 8 | '3' << 16 | '1' << 24,
[26] = '\\' | '0' << 8 | '3' << 16 | '2' << 24,
[27] = '\\' | '0' << 8 | '3' << 16 | '3' << 24,
[28] = '\\' | '0' << 8 | '3' << 16 | '4' << 24,
[29] = '\\' | '0' << 8 | '3' << 16 | '5' << 24,
[30] = '\\' | '0' << 8 | '3' << 16 | '6' << 24,
[31] = '\\' | '0' << 8 | '3' << 16 | '7' << 24,
[32] = ' ',
[33] = '!',
[34] = '\\' | '"' << 8,
[35] = '#',
[36] = '$',
[37] = '%',
[38] = '&',
[39] = '\\' | '\'' << 8,
[40] = '(',
[41] = ')',
[42] = '*',
[43] = '+',
[44] = ',',
[45] = '-',
[46] = '.',
[47] = '/',
[48] = '0',
[49] = '1',
[50] = '2',
[51] = '3',
[52] = '4',
[53] = '5',
[54] = '6',
[55] = '7',
[56] = '8',
[57] = '9',
[58] = ':',
[59] = ';',
[60] = '<',
[61] = '=',
[62] = '>',
[63] = '?',
[64] = '@',
[65] = 'A',
[66] = 'B',
[67] = 'C',
[68] = 'D',
[69] = 'E',
[70] = 'F',
[71] = 'G',
[72] = 'H',
[73] = 'I',
[74] = 'J',
[75] = 'K',
[76] = 'L',
[77] = 'M',
[78] = 'N',
[79] = 'O',
[80] = 'P',
[81] = 'Q',
[82] = 'R',
[83] = 'S',
[84] = 'T',
[85] = 'U',
[86] = 'V',
[87] = 'W',
[88] = 'X',
[89] = 'Y',
[90] = 'Z',
[91] = '[',
[92] = '\\' | '\\' << 8,
[93] = ']',
[94] = '^',
[95] = '_',
[96] = '`',
[97] = 'a',
[98] = 'b',
[99] = 'c',
[100] = 'd',
[101] = 'e',
[102] = 'f',
[103] = 'g',
[104] = 'h',
[105] = 'i',
[106] = 'j',
[107] = 'k',
[108] = 'l',
[109] = 'm',
[110] = 'n',
[111] = 'o',
[112] = 'p',
[113] = 'q',
[114] = 'r',
[115] = 's',
[116] = 't',
[117] = 'u',
[118] = 'v',
[119] = 'w',
[120] = 'x',
[121] = 'y',
[122] = 'z',
[123] = '{',
[124] = '|',
[125] = '}',
[126] = '~',
[127] = '\\' | '1' << 8 | '7' << 16 | '7' << 24,
[128] = '\\' | '2' << 8 | '0' << 16 | '0' << 24,
[129] = '\\' | '2' << 8 | '0' << 16 | '1' << 24,
[130] = '\\' | '2' << 8 | '0' << 16 | '2' << 24,
[131] = '\\' | '2' << 8 | '0' << 16 | '3' << 24,
[132] = '\\' | '2' << 8 | '0' << 16 | '4' << 24,
[133] = '\\' | '2' << 8 | '0' << 16 | '5' << 24,
[134] = '\\' | '2' << 8 | '0' << 16 | '6' << 24,
[135] = '\\' | '2' << 8 | '0' << 16 | '7' << 24,
[136] = '\\' | '2' << 8 | '1' << 16 | '0' << 24,
[137] = '\\' | '2' << 8 | '1' << 16 | '1' << 24,
[138] = '\\' | '2' << 8 | '1' << 16 | '2' << 24,
[139] = '\\' | '2' << 8 | '1' << 16 | '3' << 24,
[140] = '\\' | '2' << 8 | '1' << 16 | '4' << 24,
[141] = '\\' | '2' << 8 | '1' << 16 | '5' << 24,
[142] = '\\' | '2' << 8 | '1' << 16 | '6' << 24,
[143] = '\\' | '2' << 8 | '1' << 16 | '7' << 24,
[144] = '\\' | '2' << 8 | '2' << 16 | '0' << 24,
[145] = '\\' | '2' << 8 | '2' << 16 | '1' << 24,
[146] = '\\' | '2' << 8 | '2' << 16 | '2' << 24,
[147] = '\\' | '2' << 8 | '2' << 16 | '3' << 24,
[148] = '\\' | '2' << 8 | '2' << 16 | '4' << 24,
[149] = '\\' | '2' << 8 | '2' << 16 | '5' << 24,
[150] = '\\' | '2' << 8 | '2' << 16 | '6' << 24,
[151] = '\\' | '2' << 8 | '2' << 16 | '7' << 24,
[152] = '\\' | '2' << 8 | '3' << 16 | '0' << 24,
[153] = '\\' | '2' << 8 | '3' << 16 | '1' << 24,
[154] = '\\' | '2' << 8 | '3' << 16 | '2' << 24,
[155] = '\\' | '2' << 8 | '3' << 16 | '3' << 24,
[156] = '\\' | '2' << 8 | '3' << 16 | '4' << 24,
[157] = '\\' | '2' << 8 | '3' << 16 | '5' << 24,
[158] = '\\' | '2' << 8 | '3' << 16 | '6' << 24,
[159] = '\\' | '2' << 8 | '3' << 16 | '7' << 24,
[160] = '\\' | '2' << 8 | '4' << 16 | '0' << 24,
[161] = '\\' | '2' << 8 | '4' << 16 | '1' << 24,
[162] = '\\' | '2' << 8 | '4' << 16 | '2' << 24,
[163] = '\\' | '2' << 8 | '4' << 16 | '3' << 24,
[164] = '\\' | '2' << 8 | '4' << 16 | '4' << 24,
[165] = '\\' | '2' << 8 | '4' << 16 | '5' << 24,
[166] = '\\' | '2' << 8 | '4' << 16 | '6' << 24,
[167] = '\\' | '2' << 8 | '4' << 16 | '7' << 24,
[168] = '\\' | '2' << 8 | '5' << 16 | '0' << 24,
[169] = '\\' | '2' << 8 | '5' << 16 | '1' << 24,
[170] = '\\' | '2' << 8 | '5' << 16 | '2' << 24,
[171] = '\\' | '2' << 8 | '5' << 16 | '3' << 24,
[172] = '\\' | '2' << 8 | '5' << 16 | '4' << 24,
[173] = '\\' | '2' << 8 | '5' << 16 | '5' << 24,
[174] = '\\' | '2' << 8 | '5' << 16 | '6' << 24,
[175] = '\\' | '2' << 8 | '5' << 16 | '7' << 24,
[176] = '\\' | '2' << 8 | '6' << 16 | '0' << 24,
[177] = '\\' | '2' << 8 | '6' << 16 | '1' << 24,
[178] = '\\' | '2' << 8 | '6' << 16 | '2' << 24,
[179] = '\\' | '2' << 8 | '6' << 16 | '3' << 24,
[180] = '\\' | '2' << 8 | '6' << 16 | '4' << 24,
[181] = '\\' | '2' << 8 | '6' << 16 | '5' << 24,
[182] = '\\' | '2' << 8 | '6' << 16 | '6' << 24,
[183] = '\\' | '2' << 8 | '6' << 16 | '7' << 24,
[184] = '\\' | '2' << 8 | '7' << 16 | '0' << 24,
[185] = '\\' | '2' << 8 | '7' << 16 | '1' << 24,
[186] = '\\' | '2' << 8 | '7' << 16 | '2' << 24,
[187] = '\\' | '2' << 8 | '7' << 16 | '3' << 24,
[188] = '\\' | '2' << 8 | '7' << 16 | '4' << 24,
[189] = '\\' | '2' << 8 | '7' << 16 | '5' << 24,
[190] = '\\' | '2' << 8 | '7' << 16 | '6' << 24,
[191] = '\\' | '2' << 8 | '7' << 16 | '7' << 24,
[192] = '\\' | '3' << 8 | '0' << 16 | '0' << 24,
[193] = '\\' | '3' << 8 | '0' << 16 | '1' << 24,
[194] = '\\' | '3' << 8 | '0' << 16 | '2' << 24,
[195] = '\\' | '3' << 8 | '0' << 16 | '3' << 24,
[196] = '\\' | '3' << 8 | '0' << 16 | '4' << 24,
[197] = '\\' | '3' << 8 | '0' << 16 | '5' << 24,
[198] = '\\' | '3' << 8 | '0' << 16 | '6' << 24,
[199] = '\\' | '3' << 8 | '0' << 16 | '7' << 24,
[200] = '\\' | '3' << 8 | '1' << 16 | '0' << 24,
[201] = '\\' | '3' << 8 | '1' << 16 | '1' << 24,
[202] = '\\' | '3' << 8 | '1' << 16 | '2' << 24,
[203] = '\\' | '3' << 8 | '1' << 16 | '3' << 24,
[204] = '\\' | '3' << 8 | '1' << 16 | '4' << 24,
[205] = '\\' | '3' << 8 | '1' << 16 | '5' << 24,
[206] = '\\' | '3' << 8 | '1' << 16 | '6' << 24,
[207] = '\\' | '3' << 8 | '1' << 16 | '7' << 24,
[208] = '\\' | '3' << 8 | '2' << 16 | '0' << 24,
[209] = '\\' | '3' << 8 | '2' << 16 | '1' << 24,
[210] = '\\' | '3' << 8 | '2' << 16 | '2' << 24,
[211] = '\\' | '3' << 8 | '2' << 16 | '3' << 24,
[212] = '\\' | '3' << 8 | '2' << 16 | '4' << 24,
[213] = '\\' | '3' << 8 | '2' << 16 | '5' << 24,
[214] = '\\' | '3' << 8 | '2' << 16 | '6' << 24,
[215] = '\\' | '3' << 8 | '2' << 16 | '7' << 24,
[216] = '\\' | '3' << 8 | '3' << 16 | '0' << 24,
[217] = '\\' | '3' << 8 | '3' << 16 | '1' << 24,
[218] = '\\' | '3' << 8 | '3' << 16 | '2' << 24,
[219] = '\\' | '3' << 8 | '3' << 16 | '3' << 24,
[220] = '\\' | '3' << 8 | '3' << 16 | '4' << 24,
[221] = '\\' | '3' << 8 | '3' << 16 | '5' << 24,
[222] = '\\' | '3' << 8 | '3' << 16 | '6' << 24,
[223] = '\\' | '3' << 8 | '3' << 16 | '7' << 24,
[224] = '\\' | '3' << 8 | '4' << 16 | '0' << 24,
[225] = '\\' | '3' << 8 | '4' << 16 | '1' << 24,
[226] = '\\' | '3' << 8 | '4' << 16 | '2' << 24,
[227] = '\\' | '3' << 8 | '4' << 16 | '3' << 24,
[228] = '\\' | '3' << 8 | '4' << 16 | '4' << 24,
[229] = '\\' | '3' << 8 | '4' << 16 | '5' << 24,
[230] = '\\' | '3' << 8 | '4' << 16 | '6' << 24,
[231] = '\\' | '3' << 8 | '4' << 16 | '7' << 24,
[232] = '\\' | '3' << 8 | '5' << 16 | '0' << 24,
[233] = '\\' | '3' << 8 | '5' << 16 | '1' << 24,
[234] = '\\' | '3' << 8 | '5' << 16 | '2' << 24,
[235] = '\\' | '3' << 8 | '5' << 16 | '3' << 24,
[236] = '\\' | '3' << 8 | '5' << 16 | '4' << 24,
[237] = '\\' | '3' << 8 | '5' << 16 | '5' << 24,
[238] = '\\' | '3' << 8 | '5' << 16 | '6' << 24,
[239] = '\\' | '3' << 8 | '5' << 16 | '7' << 24,
[240] = '\\' | '3' << 8 | '6' << 16 | '0' << 24,
[241] = '\\' | '3' << 8 | '6' << 16 | '1' << 24,
[242] = '\\' | '3' << 8 | '6' << 16 | '2' << 24,
[243] = '\\' | '3' << 8 | '6' << 16 | '3' << 24,
[244] = '\\' | '3' << 8 | '6' << 16 | '4' << 24,
[245] = '\\' | '3' << 8 | '6' << 16 | '5' << 24,
[246] = '\\' | '3' << 8 | '6' << 16 | '6' << 24,
[247] = '\\' | '3' << 8 | '6' << 16 | '7' << 24,
[248] = '\\' | '3' << 8 | '7' << 16 | '0' << 24,
[249] = '\\' | '3' << 8 | '7' << 16 | '1' << 24,
[250] = '\\' | '3' << 8 | '7' << 16 | '2' << 24,
[251] = '\\' | '3' << 8 | '7' << 16 | '3' << 24,
[252] = '\\' | '3' << 8 | '7' << 16 | '4' << 24,
[253] = '\\' | '3' << 8 | '7' << 16 | '5' << 24,
[254] = '\\' | '3' << 8 | '7' << 16 | '6' << 24,
[255] = '\\' | '3' << 8 | '7' << 16 | '7' << 24,
};
int main(int argc, char *argv[]) {
int i;
for (i = 0; i < 256; ++i) {
printf("[%d] = ", i);
int j = 0;
uint32_t x = _cescapec(i);
do {
if (j) {
printf(" | ");
}
if (isprint(x & 255)) {
if ((x & 255) == '\\') {
printf("'\\\\'");
} else {
printf("'%c'", x & 255);
}
} else {
printf("%d", x & 255);
}
if (j) {
printf(" << %d", j);
}
j += 8;
} while ((x >>= 8));
printf(",\n");
}
}

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@ -1,152 +0,0 @@
#if 0
/*─────────────────────────────────────────────────────────────────╗
To the extent possible under law, Justine Tunney has waived
all copyright and related or neighboring rights to this file,
as it is written in the following disclaimers:
http://unlicense.org/ │
http://creativecommons.org/publicdomain/zero/1.0/ │
*/
#endif
#include "dsp/core/core.h"
#include "libc/calls/calls.h"
#include "libc/calls/struct/itimerval.h"
#include "libc/calls/struct/sigaction.h"
#include "libc/fmt/nf32.h"
#include "libc/intrin/bits.h"
#include "libc/log/check.h"
#include "libc/macros.internal.h"
#include "libc/mem/mem.h"
#include "libc/runtime/runtime.h"
#include "libc/stdio/append.h"
#include "libc/stdio/stdio.h"
#include "libc/str/str.h"
#include "libc/sysv/consts/itimer.h"
#include "libc/sysv/consts/sig.h"
#include "libc/time/time.h"
/**
* @fileoverview experimental way to play audio in terminals
*
* This is an stdio application that prints audio samples. The terminal
* on the other end, needs to be able to understand the Nf sequences we
* use here, which should be invisible to the terminal sort of like out
* of band signalling.
*
* To play audio with a supporting terminal:
*
* make -j8 o//examples/ttyaudio.com
* wget https://justine.lol/numbers.s16
* o//examples/ttyaudio.com numbers.s16
*
* To reveal the inband ansi audio transmission:
*
* o//examples/ttyaudio.com numbers.s16 2>/dev/null |
* o//tool/viz/bing.com |
* o//tool/viz/fold.com
*
*/
#define CSI "s"
#define SGR1 "?80"
#define SGR2 "?81"
struct Ring {
int i; // read index
int j; // write index
int n; // total samples
short* p; // samples
};
struct Speaker {
int rate; // in hertz, e.g. 8000
int codec; // 0 = s16, 2 = µ-Law
int channels; // 1 = mono, 2 = stereo
struct Ring buf; // audio playback buffer
};
const int maxar = 31;
const int ptime = 20;
struct Speaker s;
void OnAlrm(int sig) {
}
void LoadAudioFile(struct Speaker* s, const char* path) {
int rc;
FILE* f;
short buf[1024];
if (!(f = fopen(path, "rb"))) {
fprintf(stderr, "failed to open file\n");
exit(1);
}
for (;;) {
rc = fread(buf, sizeof(short), sizeof(buf) / sizeof(short), f);
if (rc) {
s->buf.p = (short*)realloc(s->buf.p, (s->buf.n + rc) * sizeof(short));
memcpy(s->buf.p + s->buf.n, buf, rc * sizeof(short));
s->buf.n += rc;
} else if (ferror(f)) {
fprintf(stderr, "read error: %s\n", strerror(ferror(f)));
exit(2);
} else {
break;
}
}
fclose(f);
}
int main(int argc, char* argv[]) {
if (argc < 2) return 1;
if (!isatty(0)) exit(1);
s.rate = 8000;
s.channels = 1;
s.codec = 0;
LoadAudioFile(&s, argv[1]);
char nf[21];
char* obuf = 0;
appendw(&obuf, READ16LE("\e%"));
appendd(&obuf, nf, EncodeNf32(nf, s.rate) - nf);
appendw(&obuf, '/');
appendd(&obuf, nf, EncodeNf32(nf, s.channels) - nf);
appendw(&obuf, '/');
appendd(&obuf, nf, EncodeNf32(nf, s.codec) - nf);
appendw(&obuf, '0');
write(1, obuf, appendz(obuf).i);
free(obuf);
struct sigaction sa = {.sa_handler = OnAlrm};
struct itimerval it = {{0, ptime * 1000}, {0, ptime * 1000}};
CHECK_NE(-1, sigaction(SIGALRM, &sa, 0));
CHECK_NE(-1, setitimer(ITIMER_REAL, &it, 0));
for (;;) {
char* p;
int count;
char nf[22];
int i, j, x;
char* obuf = 0;
int samps = s.rate / (1000 / ptime);
appendw(&obuf, READ16LE("\e "));
for (i = 0; i < samps; ++i) {
if (s.codec == 1) {
x = mulaw(s.buf.p[s.buf.i++]);
} else {
x = s.buf.p[s.buf.i++] & 0xffff;
}
*(p = EncodeNf32(nf, x)) = '/';
appendd(&obuf, nf, p + 1 - nf);
if (s.buf.i == s.buf.n) break;
}
appendw(&obuf, '0');
write(1, obuf, appendz(obuf).i);
free(obuf);
fprintf(stderr, "\r\e[K%d / %d", s.buf.i, s.buf.n);
fflush(stderr);
pause();
}
return 1;
}

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@ -34,6 +34,8 @@
#include "libc/sysv/errfuns.h"
#include "libc/thread/tls.h"
#ifdef __x86_64__
/**
* Allocates piece of memory for storing pending signal.
* @assume lock is held
@ -304,3 +306,5 @@ textwindows void __sig_check_ignore(const int sig, const unsigned rva) {
__sig_unlock();
}
}
#endif /* __x86_64__ */

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@ -23,6 +23,8 @@
#include "libc/sysv/errfuns.h"
#include "libc/thread/tls.h"
#ifdef __x86_64__
#define GetSigBit(x) (1ull << (((x)-1) & 63))
textwindows int __sig_mask(int how, const sigset_t *neu, sigset_t *old) {
@ -58,3 +60,5 @@ textwindows int __sig_mask(int how, const sigset_t *neu, sigset_t *old) {
return einval();
}
}
#endif /* __x86_64__ */

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@ -21,6 +21,8 @@
#include "libc/calls/state.internal.h"
#include "libc/calls/struct/sigset.h"
#ifdef __x86_64__
/**
* Determines the pending signals on New Technology.
*
@ -41,3 +43,5 @@ textwindows void __sig_pending(sigset_t *pending) {
__sig_unlock();
}
}
#endif /* __x86_64__ */

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@ -2,17 +2,22 @@
#define COSMOPOLITAN_LIBC_CALLS_ASAN_INTERNAL_H_
#include "libc/calls/struct/timespec.h"
#include "libc/calls/struct/timeval.h"
#include "libc/intrin/asan.internal.h"
#include "libc/intrin/asmflag.h"
#if !(__ASSEMBLER__ + __LINKER__ + 0)
COSMOPOLITAN_C_START_
forceinline bool __asan_is_valid_timespec(const struct timespec *ts) {
#ifdef __x86_64__
bool zf;
asm(ZFLAG_ASM("cmpw\t$0,0x7fff8000(%1)")
: ZFLAG_CONSTRAINT(zf)
: "r"((intptr_t)ts >> 3)
: "memory");
return zf;
#else
return __asan_is_valid(ts, sizeof(*ts));
#endif
}
forceinline bool __asan_is_valid_timeval(const struct timeval *tv) {

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@ -1,75 +0,0 @@
#include "libc/macros.internal.h"
// generated by:
// o/tool/build/xlat.com -s kNfcimal -inx -1 -I ' ,.-+*#%&$'
//
// present absent
//
// 0x00
// § 0x10
// #§%& *+,-. ! () / 0x20
// 0123456789:;<=>⁇ 0x30
// @ABCDEFGHIJKLMNO 0x40
// PQRSTUVWXYZ[]^_ 0x50
// `abcdefghijklmno 0x60
// pqrstuvwxyz{|}~ 0x70
// ÇüéâäàåçêëèïîìÄÅ 0x80
// ÉæÆôöòûùÿÖÜ¢£¥ƒ 0x90
// áíóúñѪº¿¬½¼¡«» 0xa0
// 0xb0
// 0xc0
// 0xd0
// αßΓπΣσμτΦΘΩδφε 0xe0
// ±÷°×²λ 0xf0
//
// const char kNfcimal[256] = {
// -1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1, // 0x00
// -1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1, // 0x10
// 0,-1,-1, 6, 9, 7, 8,-1,-1,-1, 5, 4, 1, 3, 2,-1, // 0x20
// -1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1, // 0x30
// -1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1, // 0x40
// -1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1, // 0x50
// -1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1, // 0x60
// -1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1, // 0x70
// -1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1, // 0x80
// -1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1, // 0x90
// -1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1, // 0xa0
// -1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1, // 0xb0
// -1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1, // 0xc0
// -1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1, // 0xd0
// -1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1, // 0xe0
// -1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1, // 0xf0
// };
.initbss 300,_init_kNfcimal
kNfcimal:
.zero 256
.endobj kNfcimal,globl
.previous
.initro 300,_init_kNfcimal
kNfcimal.rom:
.byte 32,255 # 00-1f -
.byte 1,0 # 20-20 -
.byte 2,255 # 21-22 !-
.byte 1,6 # 23-23 #-#
.byte 1,9 # 24-24 §-§
.byte 1,7 # 25-25 %-%
.byte 1,8 # 26-26 &-&
.byte 3,255 # 27-29 -)
.byte 1,5 # 2a-2a *-*
.byte 1,4 # 2b-2b +-+
.byte 1,1 # 2c-2c ,-,
.byte 1,3 # 2d-2d ---
.byte 1,2 # 2e-2e .-.
.byte 209,255 # 2f-ff /-λ
.byte 0,0 # terminator
.byte 0,0 # padding
.endobj kNfcimal.rom,globl
.init.start 300,_init_kNfcimal
call rldecode
lodsw
.init.end 300,_init_kNfcimal
// 39 bytes total (15% original size)

View file

@ -1,13 +0,0 @@
#ifndef COSMOPOLITAN_LIBC_FMT_NF32_H_
#define COSMOPOLITAN_LIBC_FMT_NF32_H_
#if !(__ASSEMBLER__ + __LINKER__ + 0)
COSMOPOLITAN_C_START_
extern const char kNfcimal[256];
uint32_t DecodeNf32(const char *, char **);
char *EncodeNf32(char[hasatleast 12], uint32_t);
COSMOPOLITAN_C_END_
#endif /* !(__ASSEMBLER__ + __LINKER__ + 0) */
#endif /* COSMOPOLITAN_LIBC_FMT_NF32_H_ */

View file

@ -26,7 +26,7 @@
typedef char xmm_t __attribute__((__vector_size__(16), __aligned__(1)));
typedef long long xmm_a __attribute__((__vector_size__(16), __aligned__(16)));
static dontinline antiquity void bzero_sse(char *p, size_t n) {
static void bzero_sse(char *p, size_t n) {
xmm_t v = {0};
if (IsAsan()) __asan_verify(p, n);
if (n <= 32) {

View file

@ -31,7 +31,7 @@ asm(".ident\t\"\\n\\n\
Musl libc (MIT License)\\n\
Copyright 2005-2014 Rich Felker, et. al.\"");
asm(".include \"libc/disclaimer.inc\"");
/* clang-format off */
// clang-format off
/**
* Returns 𝑥 × 2ʸ.

View file

@ -18,6 +18,9 @@
*/
#include "libc/math.h"
/**
* Returns 𝑥 × 2ʸ.
*/
long double ldexpl(long double x, int n) {
return scalbnl(x, n);
}

View file

@ -26,7 +26,7 @@
typedef char xmm_t __attribute__((__vector_size__(16), __aligned__(1)));
typedef long long xmm_a __attribute__((__vector_size__(16), __aligned__(16)));
static dontinline antiquity void *memset_sse(char *p, char c, size_t n) {
static void *memset_sse(char *p, char c, size_t n) {
xmm_t v = {c, c, c, c, c, c, c, c, c, c, c, c, c, c, c, c};
if (IsAsan()) __asan_verify(p, n);
if (n <= 32) {

View file

@ -32,20 +32,16 @@ asm(".ident\t\"\\n\\n\
Musl libc (MIT License)\\n\
Copyright 2005-2014 Rich Felker, et. al.\"");
asm(".include \"libc/disclaimer.inc\"");
/* clang-format off */
// clang-format off
long double scalblnl(long double x, long n) {
#if LDBL_MANT_DIG == 53 && LDBL_MAX_EXP == 1024
long double scalblnl(long double x, long n)
{
return scalbln(x, n);
}
#else
long double scalblnl(long double x, long n)
{
if (n > INT_MAX)
n = INT_MAX;
else if (n < INT_MIN)
n = INT_MIN;
return scalbnl(x, n);
}
#endif
}

View file

@ -32,18 +32,16 @@ asm(".ident\t\"\\n\\n\
Musl libc (MIT License)\\n\
Copyright 2005-2014 Rich Felker, et. al.\"");
asm(".include \"libc/disclaimer.inc\"");
/* clang-format off */
// clang-format off
/**
* Returns 𝑥 × 2ʸ.
*/
long double scalbnl(long double x, int n) {
#if LDBL_MANT_DIG == 53 && LDBL_MAX_EXP == 1024
long double scalbnl(long double x, int n)
{
return scalbn(x, n);
}
#elif (LDBL_MANT_DIG == 64 || LDBL_MANT_DIG == 113) && LDBL_MAX_EXP == 16384
long double scalbnl(long double x, int n)
{
union ldshape u;
if (n > 16383) {
x *= 0x1p16383L;
n -= 16383;
@ -66,5 +64,7 @@ long double scalbnl(long double x, int n)
u.f = 1.0;
u.i.se = 0x3fff + n;
return x * u.f;
}
#else
#error "architecture unsupported"
#endif
}

View file

@ -20,8 +20,6 @@
#include "libc/intrin/asan.internal.h"
#include "libc/str/str.h"
typedef char xmm_t __attribute__((__vector_size__(16), __aligned__(16)));
/**
* Returns length of NUL-terminated string.
*
@ -30,16 +28,33 @@ typedef char xmm_t __attribute__((__vector_size__(16), __aligned__(16)));
* @asyncsignalsafe
*/
noasan size_t strlen(const char *s) {
if (IsAsan()) __asan_verify_str(s);
#ifdef __x86_64__
size_t n;
typedef char xmm_t __attribute__((__vector_size__(16), __aligned__(16)));
xmm_t z = {0};
unsigned m, k = (uintptr_t)s & 15;
const xmm_t *p = (const xmm_t *)((uintptr_t)s & -16);
if (IsAsan()) __asan_verify_str(s);
m = __builtin_ia32_pmovmskb128(*p == z) >> k << k;
while (!m) m = __builtin_ia32_pmovmskb128(*++p == z);
n = (const char *)p + __builtin_ctzl(m) - s;
return n;
return (const char *)p + __builtin_ctzl(m) - s;
#elif defined(__GNUC__) || defined(__llvm__)
#define ONES ((word)-1 / 255)
#define BANE (ONES * (255 / 2 + 1))
typedef unsigned long mayalias word;
word w;
unsigned k;
const word *p;
k = (uintptr_t)s & (sizeof(word) - 1);
p = (const word *)((uintptr_t)s & -sizeof(word));
w = *p;
w = ~w & (w - ONES) & BANE;
w >>= k << 3;
w <<= k << 3;
while (!w) {
w = *++p;
w = ~w & (w - ONES) & BANE;
}
return (const char *)p + (__builtin_ctzl(w) >> 3) - s;
#else
size_t n = 0;
while (*s++) ++n;

View file

@ -1,7 +1,7 @@
/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:2;tab-width:8;coding:utf-8 -*-│
vi: set net ft=c ts=2 sts=2 sw=2 fenc=utf-8 :vi
Copyright 2022 Justine Alexandra Roberts Tunney
Copyright 2023 Justine Alexandra Roberts Tunney
Permission to use, copy, modify, and/or distribute this software for
any purpose with or without fee is hereby granted, provided that the
@ -16,25 +16,7 @@
TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
PERFORMANCE OF THIS SOFTWARE.
*/
#include "libc/fmt/fmt.h"
#include "libc/fmt/nf32.h"
#include "libc/stdio/rand.h"
#include "libc/testlib/testlib.h"
#include "libc/str/str.h"
TEST(EncodeNf32, test) {
char b[21];
EncodeNf32(b, 31337);
ASSERT_STREQ("-,--%", b);
}
TEST(EncodeNf32, roundTrip) {
int i;
char b[21];
uint32_t x, y;
for (i = 0; i < 1000; ++i) {
x = lemur64();
EncodeNf32(b, x);
y = DecodeNf32(b, 0);
ASSERT_EQ(x, y);
}
int _cescapec2(int c) {
}

View file

@ -18,10 +18,13 @@
*/
#include "libc/macros.internal.h"
.real
.code16 # .code32 .code64
// Optional function stub.
_missingno:
xor %ax,%ax
#ifdef __x86__
xor %eax,%eax
#elif defined(__aarch64__)
mov x0,#0
#endif
ret
.endfn _missingno,globl,hidden

View file

@ -64,6 +64,8 @@ o/$(MODE)/libc/nexgen32e/longjmp.o: libc/nexgen32e/longjmp.S
@$(COMPILE) -AOBJECTIFY.S $(OBJECTIFY.S) $(OUTPUT_OPTION) -c $<
o/$(MODE)/libc/nexgen32e/setjmp.o: libc/nexgen32e/setjmp.S
@$(COMPILE) -AOBJECTIFY.S $(OBJECTIFY.S) $(OUTPUT_OPTION) -c $<
o/$(MODE)/libc/nexgen32e/missingno.o: libc/nexgen32e/missingno.S
@$(COMPILE) -AOBJECTIFY.S $(OBJECTIFY.S) $(OUTPUT_OPTION) -c $<
LIBC_NEXGEN32E_LIBS = $(foreach x,$(LIBC_NEXGEN32E_ARTIFACTS),$($(x)))
LIBC_NEXGEN32E_SRCS = $(foreach x,$(LIBC_NEXGEN32E_ARTIFACTS),$($(x)_SRCS))

View file

@ -13,6 +13,10 @@
#define FE_DOWNWARD 0x0400
#define FE_UPWARD 0x0800
#define FE_TOWARDZERO 0x0c00
#define FE_DFL_ENV ((const fenv_t *)-1)
typedef void *fenv_t;
typedef uint16_t fexcept_t;
#elif defined(__aarch64__)
#define FE_INVALID 1
#define FE_DIVBYZERO 2
@ -24,7 +28,36 @@
#define FE_DOWNWARD 0x800000
#define FE_UPWARD 0x400000
#define FE_TOWARDZERO 0xc00000
#endif
#define FE_DFL_ENV ((const fenv_t *)-1)
typedef void *fenv_t;
typedef uint32_t fexcept_t;
#elif defined(__powerpc64__)
#define FE_TONEAREST 0
#define FE_TOWARDZERO 1
#define FE_UPWARD 2
#define FE_DOWNWARD 3
#define FE_INEXACT 0x02000000
#define FE_DIVBYZERO 0x04000000
#define FE_UNDERFLOW 0x08000000
#define FE_OVERFLOW 0x10000000
#define FE_INVALID 0x20000000
#define FE_ALL_EXCEPT 0x3e000000
#define FE_INVALID_SNAN 0x01000000
#define FE_INVALID_ISI 0x00800000
#define FE_INVALID_IDI 0x00400000
#define FE_INVALID_ZDZ 0x00200000
#define FE_INVALID_IMZ 0x00100000
#define FE_INVALID_COMPARE 0x00080000
#define FE_INVALID_SOFTWARE 0x00000400
#define FE_INVALID_SQRT 0x00000200
#define FE_INVALID_INTEGER_CONVERSION 0x00000100
#define FE_ALL_INVALID 0x01f80700
#define FE_DFL_ENV ((const fenv_t *)-1)
typedef unsigned fexcept_t;
typedef double fenv_t;
#endif /* __x86_64__ */
#ifdef __FLT_EVAL_METHOD__
#define FLT_EVAL_METHOD __FLT_EVAL_METHOD__
@ -36,10 +69,6 @@
COSMOPOLITAN_C_START_
#define FLT_ROUNDS (__flt_rounds())
#define FE_DFL_ENV ((const fenv_t *)-1)
typedef void *fenv_t;
typedef uint16_t fexcept_t;
int feclearexcept(int);
int fegetenv(fenv_t *);

View file

@ -10,6 +10,12 @@ COSMOPOLITAN_C_START_
typedef long jmp_buf[8];
#elif defined(__aarch64__)
typedef long jmp_buf[22];
#elif defined(__powerpc64__)
typedef unsigned __int128 jmp_buf[32];
#elif defined(__s390x__)
typedef unsigned long jmp_buf[18];
#elif defined(__riscv)
typedef unsigned long jmp_buf[26];
#endif
typedef long sigjmp_buf[12];

View file

@ -23,8 +23,7 @@
typedef uint64_t xmm_t __attribute__((__vector_size__(16), __aligned__(1)));
static dontinline antiquity int bcmp_sse(const char *p, const char *q,
size_t n) {
static int bcmp_sse(const char *p, const char *q, size_t n) {
xmm_t a;
while (n > 32) {
a = *(const xmm_t *)p ^ *(const xmm_t *)q;

View file

@ -22,8 +22,6 @@
#include "libc/nexgen32e/x86feature.h"
#include "libc/str/str.h"
typedef char xmm_t __attribute__((__vector_size__(16), __aligned__(16)));
static inline const unsigned char *rawmemchr_pure(const unsigned char *s,
unsigned char c) {
for (;; ++s) {
@ -34,6 +32,7 @@ static inline const unsigned char *rawmemchr_pure(const unsigned char *s,
}
#ifdef __x86_64__
typedef char xmm_t __attribute__((__vector_size__(16), __aligned__(16)));
noasan static inline const char *rawmemchr_sse(const char *s, unsigned char c) {
unsigned k;
unsigned m;
@ -54,6 +53,12 @@ noasan static inline const char *rawmemchr_sse(const char *s, unsigned char c) {
}
#endif
static inline noasan uint64_t UncheckedAlignedRead64(unsigned char *p) {
return (uint64_t)p[7] << 070 | (uint64_t)p[6] << 060 | (uint64_t)p[5] << 050 |
(uint64_t)p[4] << 040 | (uint64_t)p[3] << 030 | (uint64_t)p[2] << 020 |
(uint64_t)p[1] << 010 | (uint64_t)p[0] << 000;
}
/**
* Returns pointer to first instance of character.
*
@ -72,6 +77,22 @@ void *rawmemchr(const void *s, int c) {
}
return (void *)r;
#else
return rawmemchr_pure(s, c);
uint64_t v, w;
const unsigned char *p;
p = s;
c &= 255;
v = 0x0101010101010101ul * c;
for (; (uintptr_t)p & 7; ++p) {
if (*p == c) return p;
}
for (;; p += 8) {
w = UncheckedAlignedRead64(p);
if ((w = ~(w ^ v) & ((w ^ v) - 0x0101010101010101) & 0x8080808080808080)) {
p += (unsigned)__builtin_ctzll(w) >> 3;
break;
}
}
assert(*p == c);
return p;
#endif
}

View file

@ -22,8 +22,6 @@
#include "libc/nexgen32e/x86feature.h"
#include "libc/str/str.h"
typedef char xmm_t __attribute__((__vector_size__(16), __aligned__(16)));
static inline const char *strchr_pure(const char *s, int c) {
for (;; ++s) {
if ((*s & 255) == (c & 255)) return s;
@ -32,6 +30,7 @@ static inline const char *strchr_pure(const char *s, int c) {
}
#ifdef __x86_64__
typedef char xmm_t __attribute__((__vector_size__(16), __aligned__(16)));
noasan static inline const char *strchr_sse(const char *s, unsigned char c) {
unsigned k;
unsigned m;

View file

@ -22,8 +22,6 @@
#include "libc/nexgen32e/x86feature.h"
#include "libc/str/str.h"
typedef char xmm_t __attribute__((__vector_size__(16), __aligned__(16)));
static inline const char *strchrnul_pure(const char *s, int c) {
for (;; ++s) {
if ((*s & 255) == (c & 255)) return s;
@ -32,6 +30,7 @@ static inline const char *strchrnul_pure(const char *s, int c) {
}
#ifdef __x86_64__
typedef char xmm_t __attribute__((__vector_size__(16), __aligned__(16)));
noasan static inline const char *strchrnul_sse(const char *s, unsigned char c) {
unsigned k;
unsigned m;
@ -52,6 +51,36 @@ noasan static inline const char *strchrnul_sse(const char *s, unsigned char c) {
}
#endif
noasan static const char *strchrnul_x64(const char *p, uint64_t c) {
unsigned a, b;
uint64_t w, x, y;
for (c *= 0x0101010101010101;; p += 8) {
w = (uint64_t)(255 & p[7]) << 070 | (uint64_t)(255 & p[6]) << 060 |
(uint64_t)(255 & p[5]) << 050 | (uint64_t)(255 & p[4]) << 040 |
(uint64_t)(255 & p[3]) << 030 | (uint64_t)(255 & p[2]) << 020 |
(uint64_t)(255 & p[1]) << 010 | (uint64_t)(255 & p[0]) << 000;
if ((x = ~(w ^ c) & ((w ^ c) - 0x0101010101010101) & 0x8080808080808080) |
(y = ~w & (w - 0x0101010101010101) & 0x8080808080808080)) {
if (x) {
a = __builtin_ctzll(x);
if (y) {
b = __builtin_ctzll(y);
if (a <= b) {
return p + (a >> 3);
} else {
return p + (b >> 3);
}
} else {
return p + (a >> 3);
}
} else {
b = __builtin_ctzll(y);
return p + (b >> 3);
}
}
}
}
/**
* Returns pointer to first instance of character.
*
@ -74,6 +103,13 @@ char *strchrnul(const char *s, int c) {
_unassert((*r & 255) == (c & 255) || !*r);
return (char *)r;
#else
return strchrnul_pure(s, c);
char *r;
for (c &= 255; (uintptr_t)s & 7; ++s) {
if ((*s & 0xff) == c) return s;
if (!*s) return s;
}
r = strchrnul_x64(s, c);
assert((*r & 255) == c || !*r);
return r;
#endif
}

View file

@ -24,9 +24,8 @@
typedef uint64_t xmm_t __attribute__((__vector_size__(16), __aligned__(1)));
noasan static dontinline antiquity unsigned timingsafe_bcmp_sse(const char *p,
const char *q,
size_t n) {
noasan static unsigned timingsafe_bcmp_sse(const char *p, const char *q,
size_t n) {
uint64_t w;
xmm_t a = {0};
while (n > 16 + 16) {

View file

@ -17,6 +17,7 @@
PERFORMANCE OF THIS SOFTWARE.
*/
#include "libc/intrin/likely.h"
#include "libc/str/str.h"
#include "libc/str/unicode.h"
extern const uint8_t kEastAsianWidth[];
@ -28,6 +29,7 @@ extern const uint32_t kCombiningCharsBits;
* Returns cell width of monospace character.
*/
int wcwidth(wchar_t c) {
#ifdef __x86_64__
if (LIKELY(32 <= c && c < 127)) {
return 1;
} else if (!c) {
@ -42,4 +44,16 @@ int wcwidth(wchar_t c) {
} else {
return 1;
}
#else
if (!c) return 0;
if (c < 0 || iswcntrl(c)) return -1;
return 1 +
(c >= 0x1100 &&
(c <= 0x115f || c == 0x2329 || c == 0x232a ||
(c >= 0x2e80 && c <= 0xa4cf && c != 0x303f) ||
(c >= 0xac00 && c <= 0xd7a3) || (c >= 0xf900 && c <= 0xfaff) ||
(c >= 0xfe10 && c <= 0xfe19) || (c >= 0xfe30 && c <= 0xfe6f) ||
(c >= 0xff00 && c <= 0xff60) || (c >= 0xffe0 && c <= 0xffe6) ||
(c >= 0x20000 && c <= 0x2fffd) || (c >= 0x30000 && c <= 0x3fffd)));
#endif
}

View file

@ -0,0 +1 @@
Q29weXJpZ2h0IChDKSAxOTkzLTIwMDQgYnkgU3VuIE1pY3Jvc3lzdGVtcywgSW5jLiBBbGwgcmlnaHRzIHJlc2VydmVkLgoKRGV2ZWxvcGVkIGF0IFN1blNvZnQsIGEgU3VuIE1pY3Jvc3lzdGVtcywgSW5jLiBidXNpbmVzcy4KUGVybWlzc2lvbiB0byB1c2UsIGNvcHksIG1vZGlmeSwgYW5kIGRpc3RyaWJ1dGUgdGhpcwpzb2Z0d2FyZSBpcyBmcmVlbHkgZ3JhbnRlZCwgcHJvdmlkZWQgdGhhdCB0aGlzIG5vdGljZQppcyBwcmVzZXJ2ZWQuCg==

View file

@ -0,0 +1,125 @@
# @(#)COPYRIGHT 8.2 (Berkeley) 3/21/94
The compilation of software known as FreeBSD is distributed under the
following terms:
Copyright (c) 1992-2023 The FreeBSD Project.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions
are met:
1. Redistributions of source code must retain the above copyright
notice, this list of conditions and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright
notice, this list of conditions and the following disclaimer in the
documentation and/or other materials provided with the distribution.
THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
SUCH DAMAGE.
The 4.4BSD and 4.4BSD-Lite software is distributed under the following
terms:
All of the documentation and software included in the 4.4BSD and 4.4BSD-Lite
Releases is copyrighted by The Regents of the University of California.
Copyright 1979, 1980, 1983, 1986, 1988, 1989, 1991, 1992, 1993, 1994
The Regents of the University of California. All rights reserved.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions
are met:
1. Redistributions of source code must retain the above copyright
notice, this list of conditions and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright
notice, this list of conditions and the following disclaimer in the
documentation and/or other materials provided with the distribution.
3. All advertising materials mentioning features or use of this software
must display the following acknowledgement:
This product includes software developed by the University of
California, Berkeley and its contributors.
4. Neither the name of the University nor the names of its contributors
may be used to endorse or promote products derived from this software
without specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
SUCH DAMAGE.
The Institute of Electrical and Electronics Engineers and the American
National Standards Committee X3, on Information Processing Systems have
given us permission to reprint portions of their documentation.
In the following statement, the phrase ``this text'' refers to portions
of the system documentation.
Portions of this text are reprinted and reproduced in electronic form in
the second BSD Networking Software Release, from IEEE Std 1003.1-1988, IEEE
Standard Portable Operating System Interface for Computer Environments
(POSIX), copyright C 1988 by the Institute of Electrical and Electronics
Engineers, Inc. In the event of any discrepancy between these versions
and the original IEEE Standard, the original IEEE Standard is the referee
document.
In the following statement, the phrase ``This material'' refers to portions
of the system documentation.
This material is reproduced with permission from American National
Standards Committee X3, on Information Processing Systems. Computer and
Business Equipment Manufacturers Association (CBEMA), 311 First St., NW,
Suite 500, Washington, DC 20001-2178. The developmental work of
Programming Language C was completed by the X3J11 Technical Committee.
The views and conclusions contained in the software and documentation are
those of the authors and should not be interpreted as representing official
policies, either expressed or implied, of the Regents of the University
of California.
NOTE: The copyright of UC Berkeley's Berkeley Software Distribution ("BSD")
source has been updated. The copyright addendum may be found at
ftp://ftp.cs.berkeley.edu/pub/4bsd/README.Impt.License.Change and is
included below.
July 22, 1999
To All Licensees, Distributors of Any Version of BSD:
As you know, certain of the Berkeley Software Distribution ("BSD") source
code files require that further distributions of products containing all or
portions of the software, acknowledge within their advertising materials
that such products contain software developed by UC Berkeley and its
contributors.
Specifically, the provision reads:
" * 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by the University of
* California, Berkeley and its contributors."
Effective immediately, licensees and distributors are no longer required to
include the acknowledgement within advertising materials. Accordingly, the
foregoing paragraph of those BSD Unix files containing it is hereby deleted
in its entirety.
William Hoskins
Director, Office of Technology Licensing
University of California, Berkeley

193
libc/tinymath/LICENSE.musl Normal file
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musl as a whole is licensed under the following standard MIT license:
----------------------------------------------------------------------
Copyright © 2005-2020 Rich Felker, et al.
Permission is hereby granted, free of charge, to any person obtaining
a copy of this software and associated documentation files (the
"Software"), to deal in the Software without restriction, including
without limitation the rights to use, copy, modify, merge, publish,
distribute, sublicense, and/or sell copies of the Software, and to
permit persons to whom the Software is furnished to do so, subject to
the following conditions:
The above copyright notice and this permission notice shall be
included in all copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
----------------------------------------------------------------------
Authors/contributors include:
A. Wilcox
Ada Worcester
Alex Dowad
Alex Suykov
Alexander Monakov
Andre McCurdy
Andrew Kelley
Anthony G. Basile
Aric Belsito
Arvid Picciani
Bartosz Brachaczek
Benjamin Peterson
Bobby Bingham
Boris Brezillon
Brent Cook
Chris Spiegel
Clément Vasseur
Daniel Micay
Daniel Sabogal
Daurnimator
David Carlier
David Edelsohn
Denys Vlasenko
Dmitry Ivanov
Dmitry V. Levin
Drew DeVault
Emil Renner Berthing
Fangrui Song
Felix Fietkau
Felix Janda
Gianluca Anzolin
Hauke Mehrtens
He X
Hiltjo Posthuma
Isaac Dunham
Jaydeep Patil
Jens Gustedt
Jeremy Huntwork
Jo-Philipp Wich
Joakim Sindholt
John Spencer
Julien Ramseier
Justin Cormack
Kaarle Ritvanen
Khem Raj
Kylie McClain
Leah Neukirchen
Luca Barbato
Luka Perkov
M Farkas-Dyck (Strake)
Mahesh Bodapati
Markus Wichmann
Masanori Ogino
Michael Clark
Michael Forney
Mikhail Kremnyov
Natanael Copa
Nicholas J. Kain
orc
Pascal Cuoq
Patrick Oppenlander
Petr Hosek
Petr Skocik
Pierre Carrier
Reini Urban
Rich Felker
Richard Pennington
Ryan Fairfax
Samuel Holland
Segev Finer
Shiz
sin
Solar Designer
Stefan Kristiansson
Stefan O'Rear
Szabolcs Nagy
Timo Teräs
Trutz Behn
Valentin Ochs
Will Dietz
William Haddon
William Pitcock
Portions of this software are derived from third-party works licensed
under terms compatible with the above MIT license:
The TRE regular expression implementation (src/regex/reg* and
src/regex/tre*) is Copyright © 2001-2008 Ville Laurikari and licensed
under a 2-clause BSD license (license text in the source files). The
included version has been heavily modified by Rich Felker in 2012, in
the interests of size, simplicity, and namespace cleanliness.
Much of the math library code (src/math/* and src/complex/*) is
Copyright © 1993,2004 Sun Microsystems or
Copyright © 2003-2011 David Schultz or
Copyright © 2003-2009 Steven G. Kargl or
Copyright © 2003-2009 Bruce D. Evans or
Copyright © 2008 Stephen L. Moshier or
Copyright © 2017-2018 Arm Limited
and labelled as such in comments in the individual source files. All
have been licensed under extremely permissive terms.
The ARM memcpy code (src/string/arm/memcpy.S) is Copyright © 2008
The Android Open Source Project and is licensed under a two-clause BSD
license. It was taken from Bionic libc, used on Android.
The AArch64 memcpy and memset code (src/string/aarch64/*) are
Copyright © 1999-2019, Arm Limited.
The implementation of DES for crypt (src/crypt/crypt_des.c) is
Copyright © 1994 David Burren. It is licensed under a BSD license.
The implementation of blowfish crypt (src/crypt/crypt_blowfish.c) was
originally written by Solar Designer and placed into the public
domain. The code also comes with a fallback permissive license for use
in jurisdictions that may not recognize the public domain.
The smoothsort implementation (src/stdlib/qsort.c) is Copyright © 2011
Valentin Ochs and is licensed under an MIT-style license.
The x86_64 port was written by Nicholas J. Kain and is licensed under
the standard MIT terms.
The mips and microblaze ports were originally written by Richard
Pennington for use in the ellcc project. The original code was adapted
by Rich Felker for build system and code conventions during upstream
integration. It is licensed under the standard MIT terms.
The mips64 port was contributed by Imagination Technologies and is
licensed under the standard MIT terms.
The powerpc port was also originally written by Richard Pennington,
and later supplemented and integrated by John Spencer. It is licensed
under the standard MIT terms.
All other files which have no copyright comments are original works
produced specifically for use as part of this library, written either
by Rich Felker, the main author of the library, or by one or more
contibutors listed above. Details on authorship of individual files
can be found in the git version control history of the project. The
omission of copyright and license comments in each file is in the
interest of source tree size.
In addition, permission is hereby granted for all public header files
(include/* and arch/*/bits/*) and crt files intended to be linked into
applications (crt/*, ldso/dlstart.c, and arch/*/crt_arch.h) to omit
the copyright notice and permission notice otherwise required by the
license, and to use these files without any requirement of
attribution. These files include substantial contributions from:
Bobby Bingham
John Spencer
Nicholas J. Kain
Rich Felker
Richard Pennington
Stefan Kristiansson
Szabolcs Nagy
all of whom have explicitly granted such permission.
This file previously contained text expressing a belief that most of
the files covered by the above exception were sufficiently trivial not
to be subject to copyright, resulting in confusion over whether it
negated the permissions granted in the license. In the spirit of
permissive licensing, and of not having licensing issues being an
obstacle to adoption, that text has been removed.

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OpenBSD Copyright Policy
https://www.openbsd.org/policy.html
Goal
Copyright law is complex, OpenBSD policy is simple — OpenBSD
strives to provide code that can be freely used, copied, modified,
and distributed by anyone and for any purpose. This maintains the
spirit of the original Berkeley Software Distribution. The
preferred wording of a license to be applied to new code can be
found in the license template.
OpenBSD can exist as it does today because of the example set by
the Computer Systems Research Group at Berkeley and the battles
which they and others fought to create a Unix source distribution
un-encumbered by proprietary code and commercial licensing.
The ability of a freely redistributable "Berkeley" Unix to move
forward on a competitive basis with other operating systems
depends on the willingness of the various development groups to
exchange code amongst themselves and with other projects.
Understanding the legal issues surrounding copyright is
fundamental to the ability to exchange and re-distribute code,
while honoring the spirit of the copyright and concept of
attribution is fundamental to promoting the cooperation of the
people involved.
The Berkeley Copyright
The original Berkeley copyright poses no restrictions on private
or commercial use of the software and imposes only simple and
uniform requirements for maintaining copyright notices in
redistributed versions and crediting the originator of the
material only in advertising.
For instance:
* Copyright (c) 1982, 1986, 1990, 1991, 1993
* The Regents of the University of California. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by the University of
* California, Berkeley and its contributors.
* 4. Neither the name of the University nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
Berkeley rescinded the 3rd term (the advertising term) on 22 July
1999. Verbatim copies of the Berkeley license in the OpenBSD tree
have that term removed. In addition, many 3rd-party BSD-style
licenses consist solely of the first two terms.
Because the OpenBSD copyright imposes no conditions beyond those
imposed by the Berkeley copyright, OpenBSD can hope to share the
same wide distribution and applicability as the Berkeley
distributions. It follows however, that OpenBSD cannot include
material which includes copyrights which are more restrictive than
the Berkeley copyright, or must relegate this material to a
secondary status, i.e. OpenBSD as a whole is freely
redistributable, but some optional components may not be.
Copyright Law
While the overall subject of copyright law is far beyond the scope
of this document, some basics are in order. Under the current
copyright law, copyrights are implicit in the creation of a new
work and reside with the creator. In general the copyright applies
only to the new work, not the material the work was derived from,
nor those portions of the derivative material included in the new
work.
Copyright law admits to three general categories of works:
Original Work
A new work that is not derived from an existing work.
Derivative Work
Work that is derived from, includes or amends existing
works.
Compilation
A work that is a compilation of existing new and
derivative works.
The fundamental concept is that there is primacy of the copyright,
that is a copyright of a derivative work does not affect the
rights held by the owner of the copyright of the original work,
rather only the part added. Likewise the copyright of a
compilation does not affect the rights of the owner of the
included works, only the compilation as an entity.
It is vitally important to understand that copyrights are broad
protections as defined by national and international copyright
law. The "copyright notices" usually included in source files are
not copyrights, but rather notices that a party asserts that they
hold copyright to the material or to part of the material.
Typically these notices are associated with license terms which
grant permissions subject to copyright law and with disclaimers
that state the position of the copyright holder/distributor with
respect to liability surrounding use of the material.
By international law, specifically the Berne Convention for the
Protection of Literary and Artistic Works, part of the author's
copyright, the so-called moral rights, are inalienable. This
includes the author's right "to claim authorship of the work and
to object to any distortion, mutilation or other modification of,
or other derogatory action in relation to, the said work, which
would be prejudicial to his honor or reputation". In some
countries, the law reserves additional inalienable moral rights to
the author. On the other hand, the author is free to transfer
other parts of his copyright, the so-called economic rights, in
particular the rights to use, copy, modify, distribute, and
license the work.
Permissions — the flip side
Because copyrights arise from the creation of a work, rather than
through a registration process, there needs to be a practical way
to extend permission to use a work beyond what might be allowed by
"fair use" provisions of the copyright laws.
This permission typically takes the form of a "release" or
"license" included in the work, which grants the additional uses
beyond those granted by copyright law, usually subject to a
variety of conditions. At one extreme sits "public domain" where
the originator asserts that he imposes no restrictions on use of
the material, at the other restrictive clauses that actually grant
no additional rights or impose restrictive, discriminatory or
impractical conditions on use of the work.
Note that a license is not to be confused with a copyright
transfer. While a transfer would give the new copyright holder
exclusive rights to use the code and take these rights away from
the author, a license typically grants additional people
non-exclusive rights to use the code, while the authors retain all
their rights.
The above observations regarding moral rights imply that putting
code under an ISC or two-clause BSD license essentially makes the
code as free as it can possibly get. Modifying the wording of
these licenses can only result in one of the three following
effects:
* making the code less free by adding additional restrictions
regarding its use, copying, modification or distribution;
* or effectively not changing anything by merely changing the
wording, but not changing anything substantial regarding the
legal content;
* or making the license illegal by attempting to deprive the
authors of rights they cannot legally give away.
Again, an important point to note is that the release and
conditions can only apply to the portion of the work that was
originated by the copyright holder—the holder of a copyright on a
derivative work can neither grant additional permissions for use
of the original work, nor impose more restrictive conditions for
use of that work.
Because copyright arises from the creation of a work and not the
text or a registration process, removing or altering a copyright
notice or associated release terms has no bearing on the existence
of the copyright, rather all that is accomplished is to cast doubt
upon whatever rights the person making the modifications had to
use the material in the first place. Likewise, adding terms and
conditions in conflict with the original terms and conditions does
not supersede them, rather it casts doubts on the rights of the
person making the amendments to use the material and creates
confusion as to whether anyone can use the amended version or
derivatives thereof.
Finally, releases are generally binding on the material that they
are distributed with. This means that if the originator of a work
distributes that work with a release granting certain permissions,
those permissions apply as stated, without discrimination, to all
persons legitimately possessing a copy of the work. That means
that having granted a permission, the copyright holder can not
retroactively say that an individual or class of individuals are
no longer granted those permissions. Likewise should the copyright
holder decide to "go commercial" he can not revoke permissions
already granted for the use of the work as distributed, though he
may impose more restrictive permissions in his future
distributions of that work.
Specific Cases
This section attempts to summarize the position of OpenBSD
relative to some commonly encountered copyrights.
Berkeley
The Berkeley copyright is the model for the OpenBSD
copyright. It retains the rights of the copyright holder,
while imposing minimal conditions on the use of the
copyrighted material. Material with Berkeley copyrights,
or copyrights closely adhering to the Berkeley model can
generally be included in OpenBSD.
AT&T
As part of its settlement with AT&T, Berkeley included an
AT&T copyright notice on some of the files in 4.4BSD lite
and lite2. The terms of this license are identical to the
standard Berkeley license.
Additionally, OpenBSD includes some other AT&T code with
non-restrictive copyrights, such as the reference
implementation of awk.
Caldera
The original Unix code (AT&T versions 1 through 7 UNIX,
including 32V) was freed by Caldera, Inc. on 23 January
2002 and is now available under a 4-term BSD-style
license. As a result, it would theoretically be possible
to incorporate original Unix code into OpenBSD. However,
that code is now so old that it does not satisfy today's
interface and quality standards.
DEC, Sun, other manufacturers/software houses.
In general OpenBSD does not include material copyrighted
by manufacturers or software houses. Material may be
included where the copyright owner has granted general
permission for reuse without conditions, with terms
similar to the Berkeley copyright, or where the material
is the product of an employee and the employer's copyright
notice effectively releases any rights they might have to
the work.
Carnegie-Mellon (CMU, Mach)
The Carnegie-Mellon copyright is similar to the Berkeley
copyright, except that it requests that derivative works
be made available to Carnegie-Mellon. Because this is only
a request and not a condition, such material can still be
included in OpenBSD. It should be noted that existing
versions of Mach are still subject to AT&T copyrights,
which prevents the general distribution of Mach sources.
Apache
The original Apache license was similar to the Berkeley
license, but source code published under version 2 of the
Apache license is subject to additional restrictions and
cannot be included into OpenBSD. In particular, if you use
code under the Apache 2 license, some of your rights will
terminate if you claim in court that the code violates a
patent.
A license can only be considered fully permissive if it
allows use by anyone for all the future without giving up
any of their rights. If there are conditions that might
terminate any rights in the future, or if you have to give
up a right that you would otherwise have, even if
exercising that right could reasonably be regarded as
morally objectionable, the code is not free.
In addition, the clause about the patent license is
problematic because a patent license cannot be granted
under Copyright law, but only under contract law, which
drags the whole license into the domain of contract law.
But while Copyright law is somewhat standardized by
international agreements, contract law differs wildly
among jurisdictions. So what the license means in
different jurisdictions may vary and is hard to predict.
ISC
The ISC copyright is functionally equivalent to a two-term
BSD copyright with language removed that is made
unnecessary by the Berne convention. This is the preferred
license for new code incorporated into OpenBSD. A sample
license is available in the file
/usr/share/misc/license.template.
GNU General Public License, GPL, LGPL, copyleft, etc.
The GNU Public License and licenses modeled on it impose
the restriction that source code must be distributed or
made available for all works that are derivatives of the
GNU copyrighted code.
While this may superficially look like a noble strategy,
it is a condition that is typically unacceptable for
commercial use of software. So in practice, it usually
ends up hindering free sharing and reuse of code and ideas
rather than encouraging it. As a consequence, no
additional software bound by the GPL terms will be
considered for inclusion into the OpenBSD base system.
For historical reasons, the OpenBSD base system still
includes the following GPL-licensed components: the GNU
compiler collection (GCC) with supporting binutils and
libraries, GNU CVS, GNU texinfo, the mkhybrid file system
creation tool, and the readline library. Replacement by
equivalent, more freely licensed tools is a long-term
desideratum.
NetBSD
Much of OpenBSD is originally based on and evolved from
NetBSD, since some of the OpenBSD developers were involved
in the NetBSD project. The general NetBSD license terms
are compatible with the Berkeley license and permit such
use. Material subject only to the general NetBSD license
can generally be included in OpenBSD.
In the past, NetBSD has included material copyrighted by
individuals who have imposed license conditions beyond
that of the general NetBSD license, but granted the NetBSD
Foundation license to distribute the material. Such
material can not be included in OpenBSD as long as the
conditions imposed are at odds with the OpenBSD license
terms or releases from those terms are offered on a
discriminatory basis.
FreeBSD
Most of FreeBSD is also based on Berkeley licensed
material or includes copyright notices based on the
Berkeley model. Such material can be included in OpenBSD,
while those parts that are subject to GPL or various
individual copyright terms that are at odds with the
OpenBSD license can not be included in OpenBSD.
Linux
Most of Linux is subject to GPL style licensing terms and
therefore can not be included in OpenBSD. Individual
components may be eligible, subject to the terms of the
originator's copyright notices. Note that Linux
"distributions" may also be subject to additional
copyright claims of the distributing organization, either
as a compilation or on material included that is not part
of the Linux core.
X.Org
The X.Org Foundation maintains and distributes the X
Window System under a modified MIT license, which is quite
similar to the BSD license and additionally allows
sublicensing. Under the name of Xenocara, the OpenBSD base
system includes an improved and actively maintained
version of the X.Org code.
Shareware, Charityware, Freeware, etc.
Most "shareware" copyright notices impose conditions for
redistribution, use or visibility that are at conflict
with the OpenBSD project goals. Review on a case-by-case
basis is required as to whether the wording of the
conditions is acceptable in terms of conditions being
requested vs. demanded and whether the spirit of the
conditions is compatible with goals of the OpenBSD
project.
Public Domain
While material that is truly entered into the "public
domain" can be included in OpenBSD, review is required on
a case by case basis. Frequently the "public domain"
assertion is made by someone who does not really hold all
rights under copyright law to grant that status or there
are a variety of conditions imposed on use. For a work to
be truly in the "public domain" all rights are abandoned
and the material is offered without restrictions.
In some jurisdictions, it is doubtful whether voluntarily
placing one's own work into the public domain is legally
possible. For that reason, to make any substantial body of
code free, it is preferable to state the copyright and put
it under an ISC or BSD license instead of attempting to
release it into the public domain.

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MIT OR Apache-2.0 WITH LLVM-exception
=====================================
MIT License
-----------
Copyright (c) 1999-2022, Arm Limited.
Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in all
copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
SOFTWARE.
Apache-2.0 WITH LLVM-exception
------------------------------
Apache License
Version 2.0, January 2004
http://www.apache.org/licenses/
TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION
1. Definitions.
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Software.

View file

@ -0,0 +1,25 @@
README
This folder provides libm scalar math functions, sourced from Musl
Libc, FreeBSD, OpenBSD, and ARM's Optimized Routines project.
LICENSE
All code is covered by notice licenses (e.g. BSD, MIT) which are
documented on a file-by-file basis.
ORIGIN
git://git.musl-libc.org/musl
commit f5f55d6589940fd2c2188d76686efe3a530e64e0
Author: Rich Felker <dalias@aerifal.cx>
Date: Mon May 1 23:39:41 2023 -0400
release 1.2.4
git@github.com:ARM-software/optimized-routines.git
commit f9f58aa37edc3486f18b1dd8701b74b5e3873699
Author: Joe Ramsay <Joe.Ramsay@arm.com>
Date: Fri May 5 14:19:06 2023 +0100
math: Cleanup Neon cos and cosf

View file

@ -32,17 +32,16 @@ asm(".ident\t\"\\n\\n\
Musl libc (MIT License)\\n\
Copyright 2005-2014 Rich Felker, et. al.\"");
asm(".include \"libc/disclaimer.inc\"");
/* clang-format off */
// clang-format off
/**
* Returns inverse hyperbolic cosine of 𝑥.
* @define acosh(x) = log(x + sqrt(x*x-1))
*/
long double acoshl(long double x) {
#if LDBL_MANT_DIG == 53 && LDBL_MAX_EXP == 1024
long double acoshl(long double x)
{
return acosh(x);
}
#elif LDBL_MANT_DIG == 64 && LDBL_MAX_EXP == 16384
/* acosh(x) = log(x + sqrt(x*x-1)) */
long double acoshl(long double x)
{
union ldshape u = {x};
int e = u.i.se & 0x7fff;
@ -53,11 +52,10 @@ long double acoshl(long double x)
/* |x| < 0x1p32 */
return logl(2*x - 1/(x+sqrtl(x*x-1)));
return logl(x) + 0.693147180559945309417232121458176568L;
}
#elif LDBL_MANT_DIG == 113 && LDBL_MAX_EXP == 16384
// TODO: broken implementation to make things compile
long double acoshl(long double x)
{
return acosh(x);
}
#else
#error "architecture unsupported"
#endif
}

View file

@ -36,7 +36,7 @@ asm(".ident\t\"\\n\\n\
Musl libc (MIT License)\\n\
Copyright 2005-2014 Rich Felker, et. al.\"");
asm(".include \"libc/disclaimer.inc\"");
/* clang-format off */
// clang-format off
/* origin: FreeBSD /usr/src/lib/msun/src/e_acosl.c */
/*
@ -54,11 +54,15 @@ asm(".include \"libc/disclaimer.inc\"");
* Converted to long double by David Schultz <das@FreeBSD.ORG>.
*/
/**
* Returns arc cosine of 𝑥.
*
* @define atan2(fabs(sqrt((1-𝑥)*(1+𝑥))),𝑥)
* @domain -1 𝑥 1
*/
long double acosl(long double x) {
#if LDBL_MANT_DIG == 53 && LDBL_MAX_EXP == 1024
long double acosl(long double x)
{
return acos(x);
}
#elif (LDBL_MANT_DIG == 64 || LDBL_MANT_DIG == 113) && LDBL_MAX_EXP == 16384
#if LDBL_MANT_DIG == 64
#define CLEARBOTTOM(u) (u.i.m &= -1ULL << 32)
@ -66,14 +70,6 @@ long double acosl(long double x)
#define CLEARBOTTOM(u) (u.i.lo = 0)
#endif
/**
* Returns arc cosine of 𝑥.
*
* @define atan2(fabs(sqrt((1-𝑥)*(1+𝑥))),𝑥)
* @domain -1 𝑥 1
*/
long double acosl(long double x)
{
union ldshape u = {x};
long double z, s, c, f;
uint16_t e = u.i.se & 0x7fff;
@ -106,6 +102,8 @@ long double acosl(long double x)
f = u.f;
c = (z - f*f)/(s + f);
return 2*(__invtrigl_R(z)*s + c + f);
}
#else
#error "architecture unsupported"
#endif
}

View file

@ -34,21 +34,16 @@ asm(".ident\t\"\\n\\n\
Musl libc (MIT License)\\n\
Copyright 2005-2014 Rich Felker, et. al.\"");
asm(".include \"libc/disclaimer.inc\"");
/* clang-format off */
#if LDBL_MANT_DIG == 53 && LDBL_MAX_EXP == 1024
long double asinhl(long double x)
{
return asinh(x);
}
#elif LDBL_MANT_DIG == 64 && LDBL_MAX_EXP == 16384
// clang-format off
/**
* Returns inverse hyperbolic sine of 𝑥.
* @define asinh(x) = sign(x)*log(|x|+sqrt(x*x+1)) ~= x - x^3/6 + o(x^5)
*/
long double asinhl(long double x)
{
long double asinhl(long double x) {
#if LDBL_MANT_DIG == 53 && LDBL_MAX_EXP == 1024
return asinh(x);
#elif LDBL_MANT_DIG == 64 && LDBL_MAX_EXP == 16384
union ldshape u = {x};
unsigned e = u.i.se & 0x7fff;
unsigned s = u.i.se >> 15;
@ -71,12 +66,10 @@ long double asinhl(long double x)
FORCE_EVAL(x + 0x1p120f);
}
return s ? -x : x;
}
#elif LDBL_MANT_DIG == 113 && LDBL_MAX_EXP == 16384
// TODO: broken implementation to make things compile
long double asinhl(long double x)
{
return asinh(x);
}
#else
#error "architecture unsupported"
#endif
}

View file

@ -37,7 +37,7 @@ asm(".ident\t\"\\n\\n\
Musl libc (MIT License)\\n\
Copyright 2005-2014 Rich Felker, et. al.\"");
asm(".include \"libc/disclaimer.inc\"");
/* clang-format off */
// clang-format off
/* origin: FreeBSD /usr/src/lib/msun/src/e_asinl.c */
/*
@ -55,11 +55,15 @@ asm(".include \"libc/disclaimer.inc\"");
* Converted to long double by David Schultz <das@FreeBSD.ORG>.
*/
/**
* Returns arc sine of 𝑥.
*
* @define atan2(𝑥,sqrt((1-𝑥)*(1+𝑥)))
* @domain -1 𝑥 1
*/
long double asinl(long double x) {
#if LDBL_MANT_DIG == 53 && LDBL_MAX_EXP == 1024
long double asinl(long double x)
{
return asin(x);
}
#elif (LDBL_MANT_DIG == 64 || LDBL_MANT_DIG == 113) && LDBL_MAX_EXP == 16384
#if LDBL_MANT_DIG == 64
#define CLOSETO1(u) (u.i.m>>56 >= 0xf7)
@ -69,14 +73,6 @@ long double asinl(long double x)
#define CLEARBOTTOM(u) (u.i.lo = 0)
#endif
/**
* Returns arc sine of 𝑥.
*
* @define atan2(𝑥,sqrt((1-𝑥)*(1+𝑥)))
* @domain -1 𝑥 1
*/
long double asinl(long double x)
{
union ldshape u = {x};
long double z, r, s;
uint16_t e = u.i.se & 0x7fff;
@ -111,6 +107,8 @@ long double asinl(long double x)
x = 0.5*pio2_hi-(2*s*r - (pio2_lo-2*c) - (0.5*pio2_hi-2*f));
}
return sign ? -x : x;
}
#else
#error "architecture unsupported"
#endif
}

View file

@ -34,7 +34,7 @@ asm(".ident\t\"\\n\\n\
Optimized Routines (MIT License)\\n\
Copyright 2022 ARM Limited\"");
asm(".include \"libc/disclaimer.inc\"");
/* clang-format off */
// clang-format off
#define Pi (0x1.921fb6p+1f)
#define PiOver2 (0x1.921fb6p+0f)

View file

@ -37,7 +37,7 @@ asm(".ident\t\"\\n\\n\
Musl libc (MIT License)\\n\
Copyright 2005-2014 Rich Felker, et. al.\"");
asm(".include \"libc/disclaimer.inc\"");
/* clang-format off */
// clang-format off
/* origin: FreeBSD /usr/src/lib/msun/src/e_atan2l.c */
/*
@ -56,18 +56,13 @@ asm(".include \"libc/disclaimer.inc\"");
* Converted to long double by David Schultz <das@FreeBSD.ORG>.
*/
#if LDBL_MANT_DIG == 53 && LDBL_MAX_EXP == 1024
long double atan2l(long double y, long double x)
{
return atan2(y, x);
}
#elif (LDBL_MANT_DIG == 64 || LDBL_MANT_DIG == 113) && LDBL_MAX_EXP == 16384
/**
* Returns arc tangent of 𝑦/𝑥.
*/
long double atan2l(long double y, long double x)
{
long double atan2l(long double y, long double x) {
#if LDBL_MANT_DIG == 53 && LDBL_MAX_EXP == 1024
return atan2(y, x);
#elif (LDBL_MANT_DIG == 64 || LDBL_MANT_DIG == 113) && LDBL_MAX_EXP == 16384
#ifdef __x86__
long double res;
@ -133,7 +128,9 @@ long double atan2l(long double y, long double x)
default: /* case 3 */
return (z-2*pio2_lo)-2*pio2_hi; /* atan(-,-) */
}
#endif /* __x86__ */
}
#endif /* __x86__ */
#else
#error "architecture unsupported"
#endif
}

View file

@ -72,4 +72,6 @@ long double atanhl(long double x)
return s ? -x : x;
}
#else
#error "architecture unsupported"
#endif

View file

@ -36,7 +36,7 @@ asm(".ident\t\"\\n\\n\
Musl libc (MIT License)\\n\
Copyright 2005-2014 Rich Felker, et. al.\"");
asm(".include \"libc/disclaimer.inc\"");
/* clang-format off */
// clang-format off
/* origin: FreeBSD /usr/src/lib/msun/src/s_atanl.c */
/*
@ -231,4 +231,6 @@ long double atanl(long double x)
return sign ? -z : z;
}
#else
#error "architecture unsupported"
#endif

View file

@ -27,16 +27,14 @@
*/
#include "libc/complex.h"
#include "libc/math.h"
#include "libc/tinymath/complex.internal.h"
asm(".ident\t\"\\n\\n\
Musl libc (MIT License)\\n\
Copyright 2005-2014 Rich Felker, et. al.\"");
asm(".include \"libc/disclaimer.inc\"");
/* clang-format off */
// clang-format off
long double complex cacoshl(long double complex z)
{
long double complex cacoshl(long double complex z) {
#if LDBL_MANT_DIG == 53 && LDBL_MAX_EXP == 1024
return cacosh(z);
#else

View file

@ -26,13 +26,12 @@
*/
#include "libc/complex.h"
#include "libc/tinymath/complex.internal.h"
asm(".ident\t\"\\n\\n\
Musl libc (MIT License)\\n\
Copyright 2005-2014 Rich Felker, et. al.\"");
asm(".include \"libc/disclaimer.inc\"");
/* clang-format off */
// clang-format off
long double complex cacosl(long double complex z) {
#if LDBL_MANT_DIG == 53 && LDBL_MAX_EXP == 1024

View file

@ -26,26 +26,18 @@
*/
#include "libc/complex.h"
#include "libc/math.h"
#include "libc/tinymath/complex.internal.h"
asm(".ident\t\"\\n\\n\
Musl libc (MIT License)\\n\
Copyright 2005-2014 Rich Felker, et. al.\"");
asm(".include \"libc/disclaimer.inc\"");
/* clang-format off */
// clang-format off
long double complex casinhl(long double complex z) {
#if LDBL_MANT_DIG == 53 && LDBL_MAX_EXP == 1024
long double complex casinhl(long double complex z)
{
return casinh(z);
}
#else
long double complex casinhl(long double complex z)
{
z = casinl(CMPLXL(-cimagl(z), creall(z)));
return CMPLXL(cimagl(z), -creall(z));
}
#endif
}

View file

@ -26,8 +26,6 @@
*/
#include "libc/complex.h"
#include "libc/math.h"
#include "libc/tinymath/complex.internal.h"
asm(".ident\t\"\\n\\n\
Musl libc (MIT License)\\n\

View file

@ -26,14 +26,12 @@
*/
#include "libc/complex.h"
#include "libc/math.h"
#include "libc/tinymath/complex.internal.h"
asm(".ident\t\"\\n\\n\
Musl libc (MIT License)\\n\
Copyright 2005-2014 Rich Felker, et. al.\"");
asm(".include \"libc/disclaimer.inc\"");
/* clang-format off */
// clang-format off
long double complex catanhl(long double complex z) {
#if LDBL_MANT_DIG == 53 && LDBL_MAX_EXP == 1024

View file

@ -165,4 +165,6 @@ long double cbrtl(long double x)
return t;
}
#else
#error "architecture unsupported"
#endif

View file

@ -36,8 +36,7 @@ asm(".ident\t\"\\n\\n\
Musl libc (MIT License)\\n\
Copyright 2005-2014 Rich Felker, et. al.\"");
asm(".include \"libc/disclaimer.inc\"");
/* clang-format off */
// clang-format off
/* origin: FreeBSD /usr/src/lib/msun/src/s_ccosh.c */
/*-

View file

@ -26,16 +26,12 @@
*/
#include "libc/complex.h"
#include "libc/math.h"
#include "libc/tinymath/complex.internal.h"
asm(".ident\t\"\\n\\n\
Musl libc (MIT License)\\n\
Copyright 2005-2014 Rich Felker, et. al.\"");
asm(".include \"libc/disclaimer.inc\"");
/* clang-format off */
// clang-format off
//FIXME
long double complex ccoshl(long double complex z)

View file

@ -26,19 +26,14 @@
*/
#include "libc/complex.h"
#include "libc/math.h"
#include "libc/tinymath/complex.internal.h"
asm(".ident\t\"\\n\\n\
Musl libc (MIT License)\\n\
Copyright 2005-2014 Rich Felker, et. al.\"");
asm(".include \"libc/disclaimer.inc\"");
/* clang-format off */
// clang-format off
long double complex ccosl(long double complex z)
{
long double complex ccosl(long double complex z) {
#if LDBL_MANT_DIG == 53 && LDBL_MAX_EXP == 1024
return ccos(z);
#else

View file

@ -26,7 +26,9 @@
*/
#include "libc/math.h"
#include "libc/runtime/fenv.h"
#include "libc/tinymath/internal.h"
#include "third_party/intel/smmintrin.internal.h"
asm(".ident\t\"\\n\\n\
Musl libc (MIT License)\\n\
@ -41,8 +43,35 @@ asm(".include \"libc/disclaimer.inc\"");
#endif
static const double_t toint = 1/EPS;
/**
* Returns smallest integral value not less than 𝑥.
*/
double ceil(double x)
{
#ifdef __aarch64__
asm("frintp\t%d0,%d1" : "=w"(x) : "w"(x));
return x;
#elif defined(__powerpc64__) && defined(_ARCH_PWR5X)
asm("frip\t%0,%1" : "=d"(x) : "d"(x));
return x;
#elif defined(__s390x__) && (defined(__HTM__) || __ARCH__ >= 9)
asm("fidbra\t%0,6,%1,4" : "=f"(x) : "f"(x));
return x;
#elif defined(__x86_64__) && defined(__SSE4_1__)
asm("roundsd\t%2,%1,%0"
: "=x"(x)
: "x"(x), "i"(_MM_FROUND_TO_POS_INF | _MM_FROUND_NO_EXC));
return x;
#else
union {double f; uint64_t i;} u = {x};
int e = u.i >> 52 & 0x7ff;
double_t y;
@ -62,4 +91,6 @@ double ceil(double x)
if (y < 0)
return x + y + 1;
return x + y;
#endif /* __aarch64__ */
}

View file

@ -27,6 +27,7 @@
*/
#include "libc/math.h"
#include "libc/tinymath/internal.h"
#include "third_party/intel/smmintrin.internal.h"
asm(".ident\t\"\\n\\n\
Musl libc (MIT License)\\n\
@ -34,8 +35,35 @@ Copyright 2005-2014 Rich Felker, et. al.\"");
asm(".include \"libc/disclaimer.inc\"");
// clang-format off
/**
* Returns smallest integral value not less than 𝑥.
*/
float ceilf(float x)
{
#ifdef __aarch64__
asm("frintp\t%s0,%s1" : "=w"(x) : "w"(x));
return x;
#elif defined(__powerpc64__) && defined(_ARCH_PWR5X)
asm("frip\t%0,%1" : "=f"(x) : "f"(x));
return x;
#elif defined(__s390x__) && (defined(__HTM__) || __ARCH__ >= 9)
asm("fiebra\t%0,6,%1,4" : "=f"(x) : "f"(x));
return x;
#elif defined(__x86_64__) && defined(__SSE4_1__)
asm("roundss\t%2,%1,%0"
: "=x"(x)
: "x"(x), "i"(_MM_FROUND_TO_POS_INF | _MM_FROUND_NO_EXC));
return x;
#else
union {float f; uint32_t i;} u = {x};
int e = (int)(u.i >> 23 & 0xff) - 0x7f;
uint32_t m;
@ -58,4 +86,6 @@ float ceilf(float x)
u.f = 1.0;
}
return u.f;
#endif /* __aarch64__ */
}

View file

@ -35,6 +35,9 @@ Copyright 2005-2014 Rich Felker, et. al.\"");
asm(".include \"libc/disclaimer.inc\"");
// clang-format off
/**
* Returns smallest integral value not less than 𝑥.
*/
long double ceill(long double x) {
#if LDBL_MANT_DIG == 53 && LDBL_MAX_EXP == 1024
return ceil(x);
@ -43,7 +46,6 @@ long double ceill(long double x) {
union ldshape u = {x};
int e = u.i.se & 0x7fff;
long double y;
if (e >= 0x3fff+LDBL_MANT_DIG-1 || x == 0)
return x;
/* y = int(x) - x, where int(x) is an integer neighbor of x */
@ -59,5 +61,7 @@ long double ceill(long double x) {
if (y < 0)
return x + y + 1;
return x + y;
#else
#error "architecture unsupported"
#endif
}

View file

@ -26,16 +26,12 @@
*/
#include "libc/complex.h"
#include "libc/math.h"
#include "libc/tinymath/complex.internal.h"
asm(".ident\t\"\\n\\n\
Musl libc (MIT License)\\n\
Copyright 2005-2014 Rich Felker, et. al.\"");
asm(".include \"libc/disclaimer.inc\"");
/* clang-format off */
// clang-format off
//FIXME
long double complex cexpl(long double complex z)

View file

@ -33,9 +33,7 @@ asm(".ident\t\"\\n\\n\
Musl libc (MIT License)\\n\
Copyright 2005-2014 Rich Felker, et. al.\"");
asm(".include \"libc/disclaimer.inc\"");
/* clang-format off */
// clang-format off
#if LDBL_MANT_DIG == 53 && LDBL_MAX_EXP == 1024
long double complex clogl(long double complex z)
@ -47,7 +45,6 @@ long double complex clogl(long double complex z)
long double complex clogl(long double complex z)
{
long double r, phi;
r = cabsl(z);
phi = cargl(z);
return CMPLXL(logl(r), phi);

View file

@ -30,5 +30,7 @@ long double copysignl(long double x, long double y) {
ux.i.se &= 0x7fff;
ux.i.se |= uy.i.se & 0x8000;
return ux.f;
#else
#error "architecture unsupported"
#endif
}

View file

@ -79,5 +79,7 @@ long double coshl(long double x) {
#elif LDBL_MANT_DIG == 113 && LDBL_MAX_EXP == 16384
// TODO: broken implementation to make things compile
return cosh(x);
#else
#error "architecture unsupported"
#endif
}

View file

@ -68,5 +68,7 @@ long double cosl(long double x) {
default:
return __sinl(hi, lo, 1);
}
#else
#error "architecture unsupported"
#endif
}

View file

@ -26,16 +26,12 @@
*/
#include "libc/complex.h"
#include "libc/math.h"
#include "libc/tinymath/complex.internal.h"
asm(".ident\t\"\\n\\n\
Musl libc (MIT License)\\n\
Copyright 2005-2014 Rich Felker, et. al.\"");
asm(".include \"libc/disclaimer.inc\"");
/* clang-format off */
// clang-format off
#if LDBL_MANT_DIG == 53 && LDBL_MAX_EXP == 1024
long double complex cpowl(long double complex z, long double complex c)

View file

@ -36,8 +36,7 @@ asm(".ident\t\"\\n\\n\
Musl libc (MIT License)\\n\
Copyright 2005-2014 Rich Felker, et. al.\"");
asm(".include \"libc/disclaimer.inc\"");
/* clang-format off */
// clang-format off
/* origin: FreeBSD /usr/src/lib/msun/src/s_csinhf.c */
/*-

View file

@ -26,16 +26,12 @@
*/
#include "libc/complex.h"
#include "libc/math.h"
#include "libc/tinymath/complex.internal.h"
asm(".ident\t\"\\n\\n\
Musl libc (MIT License)\\n\
Copyright 2005-2014 Rich Felker, et. al.\"");
asm(".include \"libc/disclaimer.inc\"");
/* clang-format off */
// clang-format off
//FIXME
long double complex csinhl(long double complex z)

View file

@ -26,16 +26,12 @@
*/
#include "libc/complex.h"
#include "libc/math.h"
#include "libc/tinymath/complex.internal.h"
asm(".ident\t\"\\n\\n\
Musl libc (MIT License)\\n\
Copyright 2005-2014 Rich Felker, et. al.\"");
asm(".include \"libc/disclaimer.inc\"");
/* clang-format off */
// clang-format off
#if LDBL_MANT_DIG == 53 && LDBL_MAX_EXP == 1024
long double complex csinl(long double complex z)

View file

@ -26,16 +26,12 @@
*/
#include "libc/complex.h"
#include "libc/math.h"
#include "libc/tinymath/complex.internal.h"
asm(".ident\t\"\\n\\n\
Musl libc (MIT License)\\n\
Copyright 2005-2014 Rich Felker, et. al.\"");
asm(".include \"libc/disclaimer.inc\"");
/* clang-format off */
// clang-format off
//FIXME
long double complex csqrtl(long double complex z)

View file

@ -26,16 +26,12 @@
*/
#include "libc/complex.h"
#include "libc/math.h"
#include "libc/tinymath/complex.internal.h"
asm(".ident\t\"\\n\\n\
Musl libc (MIT License)\\n\
Copyright 2005-2014 Rich Felker, et. al.\"");
asm(".include \"libc/disclaimer.inc\"");
/* clang-format off */
// clang-format off
//FIXME
long double complex ctanhl(long double complex z)

View file

@ -26,8 +26,6 @@
*/
#include "libc/complex.h"
#include "libc/math.h"
#include "libc/tinymath/complex.internal.h"
asm(".ident\t\"\\n\\n\
Musl libc (MIT License)\\n\
@ -35,8 +33,6 @@ Copyright 2005-2014 Rich Felker, et. al.\"");
asm(".include \"libc/disclaimer.inc\"");
/* clang-format off */
#if LDBL_MANT_DIG == 53 && LDBL_MAX_EXP == 1024
long double complex ctanl(long double complex z)
{

View file

@ -53,5 +53,7 @@ long double exp10l(long double x) {
return y * p10[(int)n+15];
}
return powl(10.0, x);
#else
#error "architecture unsupported"
#endif
}

View file

@ -30,8 +30,8 @@
#include "libc/tinymath/ldshape.internal.h"
asm(".ident\t\"\\n\\n\
exp2l (BSD-2 License)\\n\
Copyright (c) 2005-2008 David Schultz <das@FreeBSD.ORG>\"");
FreeBSD libm (BSD-2 License)\\n\
Copyright (c) 2005-2011, Bruce D. Evans, Steven G. Kargl, David Schultz.\"");
asm(".ident\t\"\\n\\n\
Musl libc (MIT License)\\n\
Copyright 2005-2014 Rich Felker, et. al.\"");
@ -654,4 +654,6 @@ exp2l(long double x)
return scalbnl(r, k.i);
}
#else
#error "architecture unsupported"
#endif

View file

@ -162,4 +162,6 @@ long double expl(long double x)
{
return exp(x);
}
#else
#error "architecture unsupported"
#endif

View file

@ -157,4 +157,6 @@ long double expm1l(long double x)
{
return expm1(x);
}
#else
#error "architecture unsupported"
#endif

View file

@ -1,41 +0,0 @@
/*-*- mode:unix-assembly; indent-tabs-mode:t; tab-width:8; coding:utf-8 -*-│
vi: set et ft=asm ts=8 tw=8 fenc=utf-8 :vi
Copyright 2020 Justine Alexandra Roberts Tunney
Permission to use, copy, modify, and/or distribute this software for
any purpose with or without fee is hereby granted, provided that the
above copyright notice and this permission notice appear in all copies.
THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL
WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED
WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE
AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL
DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR
PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
PERFORMANCE OF THIS SOFTWARE.
*/
#include "libc/macros.internal.h"
// Thunks float(*fn)(float,float) -> long double fn.
//
// @param %xmm0[0] contains float param
// @return %xmm0[0] contains float result
// @note 100% negligible overhead
_f2ld2: push %rbp
mov %rsp,%rbp
.profilable
sub $32,%rsp
movss %xmm0,-32(%rbp)
flds -32(%rbp)
fstpt -32(%rbp)
movsd %xmm1,-16(%rbp)
flds -16(%rbp)
fstpt -16(%rbp)
call *%rax
fstps -16(%rbp)
movss -16(%rbp),%xmm0
leave
ret
.endfn _f2ld2,globl,hidden

View file

@ -18,6 +18,9 @@
*/
#include "libc/math.h"
/**
* Returns absolute value of floating point number.
*/
double fabs(double x) {
union {
double f;

View file

@ -18,6 +18,9 @@
*/
#include "third_party/libcxx/math.h"
/**
* Returns absolute value of floating point number.
*/
float fabsf(float x) {
union {
float f;

View file

@ -19,6 +19,9 @@
#include "libc/math.h"
#include "libc/tinymath/ldshape.internal.h"
/**
* Returns absolute value of floating point number.
*/
long double fabsl(long double x) {
#if LDBL_MANT_DIG == 53 && LDBL_MAX_EXP == 1024
return fabs(x);
@ -26,5 +29,7 @@ long double fabsl(long double x) {
union ldshape u = {x};
u.i.se &= 0x7fff;
return u.f;
#else
#error "architecture unsupported"
#endif
}

View file

@ -26,7 +26,9 @@
*/
#include "libc/math.h"
#include "libc/runtime/fenv.h"
#include "libc/tinymath/internal.h"
#include "third_party/intel/smmintrin.internal.h"
asm(".ident\t\"\\n\\n\
Musl libc (MIT License)\\n\
@ -41,8 +43,35 @@ asm(".include \"libc/disclaimer.inc\"");
#endif
static const double_t toint = 1/EPS;
/**
* Returns largest integral value not greater than 𝑥.
*/
double floor(double x)
{
#ifdef __aarch64__
asm("frintm\t%d0,%d1" : "=w"(x) : "w"(x));
return x;
#elif defined(__powerpc64__) && defined(_ARCH_PWR5X)
asm("frim\t%0,%1" : "=d"(x) : "d"(x));
return x;
#elif defined(__s390x__) && (defined(__HTM__) || __ARCH__ >= 9)
asm("fidbra\t%0,7,%1,4" : "=f"(x) : "f"(x));
return x;
#elif defined(__x86_64__) && defined(__SSE4_1__)
asm("roundsd\t%2,%1,%0"
: "=x"(x)
: "x"(x), "i"(_MM_FROUND_TO_NEG_INF | _MM_FROUND_NO_EXC));
return x;
#else
union {double f; uint64_t i;} u = {x};
int e = u.i >> 52 & 0x7ff;
double_t y;
@ -62,4 +91,6 @@ double floor(double x)
if (y > 0)
return x + y - 1;
return x + y;
#endif /* __aarch64__ */
}

View file

@ -26,6 +26,7 @@
*/
#include "libc/tinymath/internal.h"
#include "third_party/intel/smmintrin.internal.h"
#include "third_party/libcxx/math.h"
asm(".ident\t\"\\n\\n\
@ -34,8 +35,35 @@ Copyright 2005-2014 Rich Felker, et. al.\"");
asm(".include \"libc/disclaimer.inc\"");
// clang-format off
/**
* Returns largest integral value not greater than 𝑥.
*/
float floorf(float x)
{
#ifdef __aarch64__
asm("frintm\t%s0,%s1" : "=w"(x) : "w"(x));
return x;
#elif defined(__powerpc64__) && defined(_ARCH_PWR5X)
asm("frim\t%0,%1" : "=f"(x) : "f"(x));
return x;
#elif defined(__s390x__) && (defined(__HTM__) || __ARCH__ >= 9)
asm("fiebra\t%0,7,%1,4" : "=f"(x) : "f"(x));
return x;
#elif defined(__x86_64__) && defined(__SSE4_1__)
asm("roundss\t%2,%1,%0"
: "=x"(x)
: "x"(x), "i"(_MM_FROUND_TO_NEG_INF | _MM_FROUND_NO_EXC));
return x;
#else
union {float f; uint32_t i;} u = {x};
int e = (int)(u.i >> 23 & 0xff) - 0x7f;
uint32_t m;
@ -58,4 +86,6 @@ float floorf(float x)
u.f = -1.0;
}
return u.f;
#endif /* __aarch64__ */
}

View file

@ -35,6 +35,9 @@ Copyright 2005-2014 Rich Felker, et. al.\"");
asm(".include \"libc/disclaimer.inc\"");
// clang-format off
/**
* Returns largest integral value not greater than 𝑥.
*/
long double floorl(long double x) {
#if LDBL_MANT_DIG == 53 && LDBL_MAX_EXP == 1024
return floor(x);
@ -60,5 +63,7 @@ long double floorl(long double x) {
if (y > 0)
return x + y - 1;
return x + y;
#else
#error "architecture unsupported"
#endif
}

View file

@ -31,13 +31,17 @@ asm(".ident\t\"\\n\\n\
Musl libc (MIT License)\\n\
Copyright 2005-2014 Rich Felker, et. al.\"");
asm(".include \"libc/disclaimer.inc\"");
/* clang-format off */
// clang-format off
#define ASUINT64(x) ((union {double f; uint64_t i;}){x}).i
#define ZEROINFNAN (0x7ff-0x3ff-52-1)
static inline int a_clz_64(uint64_t x)
{
#ifdef __GNUC__
if (!x) return 63;
return __builtin_clzll(x);
#else
uint32_t y;
int r;
if (x>>32) y=x>>32, r=0; else y=x, r=32;
@ -46,6 +50,7 @@ static inline int a_clz_64(uint64_t x)
if (y>>4) y>>=4; else r |= 4;
if (y>>2) y>>=2; else r |= 2;
return r | !(y>>1);
#endif
}
struct num { uint64_t m; int e; int sign; };
@ -73,7 +78,6 @@ static void mul(uint64_t *hi, uint64_t *lo, uint64_t x, uint64_t y)
uint64_t t1,t2,t3;
uint64_t xlo = (uint32_t)x, xhi = x>>32;
uint64_t ylo = (uint32_t)y, yhi = y>>32;
t1 = xlo*ylo;
t2 = xlo*yhi + xhi*ylo;
t3 = xhi*yhi;
@ -81,8 +85,48 @@ static void mul(uint64_t *hi, uint64_t *lo, uint64_t x, uint64_t y)
*hi = t3 + (t2>>32) + (t1 > *lo);
}
/**
* Performs fused multiply add.
*
* @return `𝑥 * 𝑦 + 𝑧` rounded as one ternary operation
*/
double fma(double x, double y, double z)
{
#if defined(__x86_64__) && defined(__FMA__)
// Intel Haswell+ (c. 2013)
// AMD Piledriver+ (c. 2011)
asm("vfmadd132sd\t%1,%2,%0" : "+x"(x) : "x"(y), "x"(z));
return x;
#elif defined(__x86_64__) && defined(__FMA4__)
// AMD Bulldozer+ (c. 2011)
asm("vfmaddsd\t%3,%2,%1,%0" : "=x"(x) : "x"(x), "x"(y), "x"(z));
return x;
#elif defined(__aarch64__)
asm("fmadd\t%d0,%d1,%d2,%d3" : "=w"(x) : "w"(x), "w"(y), "w"(z));
return x;
#elif defined(__powerpc64__)
asm("fmadd\t%0,%1,%2,%3" : "=d"(x) : "d"(x), "d"(y), "d"(z));
return x;
#elif defined(__riscv) && __riscv_flen >= 64
asm("fmadd.d\t%0,%1,%2,%3" : "=f"(x) : "f"(x), "f"(y), "f"(z));
return x;
#elif defined(__s390x__)
asm("madbr\t%0,\t%1,\t%2" : "+f"(z) : "f"(x), "f"(y));
return z;
#else
/* normalize so top 10bits and last bit are 0 */
struct num nx, ny, nz;
nx = normalize(x);
@ -220,4 +264,6 @@ double fma(double x, double y, double z)
}
}
return scalbn(r, e);
#endif /* __x86_64__ */
}

View file

@ -35,7 +35,7 @@ asm(".ident\t\"\\n\\n\
Musl libc (MIT License)\\n\
Copyright 2005-2014 Rich Felker, et. al.\"");
asm(".include \"libc/disclaimer.inc\"");
/* clang-format off */
// clang-format off
/* origin: FreeBSD /usr/src/lib/msun/src/s_fmaf.c */
/*-
@ -64,16 +64,53 @@ asm(".include \"libc/disclaimer.inc\"");
* SUCH DAMAGE.
*/
/*
* Fused multiply-add: Compute x * y + z with a single rounding error.
/**
* Performs fused multiply add.
*
* A double has more than twice as much precision than a float, so
* direct double-precision arithmetic suffices, except where double
* rounding occurs.
* @return `𝑥 * 𝑦 + 𝑧` with a single rounding error
*/
float fmaf(float x, float y, float z)
{
// #pragma STDC FENV_ACCESS ON
#if defined(__x86_64__) && defined(__FMA__)
// Intel Haswell+ (c. 2013)
// AMD Piledriver+ (c. 2011)
asm("vfmadd132ss\t%1,%2,%0" : "+x"(x) : "x"(y), "x"(z));
return x;
#elif defined(__x86_64__) && defined(__FMA4__)
// AMD Bulldozer+ (c. 2011)
asm("vfmaddss\t%3,%2,%1,%0" : "=x"(x) : "x"(x), "x"(y), "x"(z));
return x;
#elif defined(__aarch64__)
asm("fmadd\t%s0,%s1,%s2,%s3" : "=w"(x) : "w"(x), "w"(y), "w"(z));
return x;
#elif defined(__powerpc64__)
asm("fmadds\t%0,%1,%2,%3" : "=f"(x) : "f"(x), "f"(y), "f"(z));
return x;
#elif defined(__riscv) && __riscv_flen >= 32
asm("fmadd.s\t%0,%1,%2,%3" : "=f"(x) : "f"(x), "f"(y), "f"(z));
return x;
#elif defined(__s390x__)
asm("maebr\t%0,%1,%2" : "+f"(z) : "f"(x), "f"(y));
return z;
#else
/* A double has more than twice as much precision than a float,
so direct double-precision arithmetic suffices, except where
double rounding occurs. */
/* #pragma STDC FENV_ACCESS ON */
double xy, result;
union {double f; uint64_t i;} u;
int e;
@ -124,4 +161,6 @@ float fmaf(float x, float y, float z)
u.i--;
z = u.f;
return z;
#endif /* __x86_64__ */
}

View file

@ -131,5 +131,7 @@ long double fmodl(long double x, long double y) {
} else
ux.i.se = ex|sx;
return ux.f;
#else
#error "architecture unsupported"
#endif
}

View file

@ -37,8 +37,7 @@ asm(".include \"libc/disclaimer.inc\"");
/**
* Splits number normalized fraction and exponent.
*/
long double frexpl(long double x, int *e)
{
long double frexpl(long double x, int *e) {
#if LDBL_MANT_DIG == 53 && LDBL_MAX_EXP == 1024
return frexp(x, e);
#elif (LDBL_MANT_DIG == 64 || LDBL_MANT_DIG == 113) && LDBL_MAX_EXP == 16384
@ -59,5 +58,7 @@ long double frexpl(long double x, int *e)
u.i.se &= 0x8000;
u.i.se |= 0x3ffe;
return u.f;
#else
#error "architecture unsupported"
#endif
}

View file

@ -97,4 +97,6 @@ long double hypotl(long double x, long double y)
sq(&hy, &ly, y);
return z*sqrtl(ly+lx+hy+hx);
}
#else
#error "architecture unsupported"
#endif

View file

@ -82,6 +82,8 @@ int ilogbl(long double x) {
return u.f ? FP_ILOGBNAN : INT_MAX;
}
return e - 0x3fff;
#else
#error "architecture unsupported"
#endif
}

View file

@ -180,4 +180,6 @@ long double __tanl(long double x, long double y, int odd) {
s = 1.0 + t * z;
return t + a * (s + t * v);
}
#else
#error "architecture unsupported"
#endif

View file

@ -1,7 +1,7 @@
/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:2;tab-width:8;coding:utf-8 -*-│
vi: set net ft=c ts=2 sts=2 sw=2 fenc=utf-8 :vi
Copyright 2022 Justine Alexandra Roberts Tunney
Copyright 2023 Justine Alexandra Roberts Tunney
Permission to use, copy, modify, and/or distribute this software for
any purpose with or without fee is hereby granted, provided that the
@ -16,26 +16,21 @@
TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
PERFORMANCE OF THIS SOFTWARE.
*/
#include "libc/fmt/nf32.h"
#include "libc/tinymath/tinymath.h"
/**
* Encodes u32 as ANSI Nf sequence content.
* Rounds to nearest integer.
*/
char *EncodeNf32(char p[hasatleast 12], uint32_t x) {
char t;
size_t i, a, b;
i = 0;
do {
p[i++] = " ,.-+*#%&$"[x % 10];
x = x / 10;
} while (x > 0);
p[i] = '\0';
if (i) {
for (a = 0, b = i - 1; a < b; ++a, --b) {
t = p[a];
p[a] = p[b];
p[b] = t;
}
}
return p + i;
long long llrint(double x) {
long long res;
#ifdef __x86_64__
asm("cvtsd2si\t%1,%0" : "=r"(res) : "x"(x));
#elif defined(__aarch64__)
asm("frintx\t%d1,%d1\n\t"
"fcvtzs\t%x0,%d1"
: "=r"(res), "+w"(x));
#else
res = rint(x);
#endif /* __x86_64__ */
return res;
}

View file

@ -1,7 +1,7 @@
/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:2;tab-width:8;coding:utf-8 -*-│
vi: set net ft=c ts=2 sts=2 sw=2 fenc=utf-8 :vi
Copyright 2022 Justine Alexandra Roberts Tunney
Copyright 2023 Justine Alexandra Roberts Tunney
Permission to use, copy, modify, and/or distribute this software for
any purpose with or without fee is hereby granted, provided that the
@ -16,26 +16,21 @@
TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
PERFORMANCE OF THIS SOFTWARE.
*/
#include "libc/errno.h"
#include "libc/fmt/nf32.h"
#include "libc/str/str.h"
#include "libc/math.h"
/**
* Decodes u32 from ANSI Nf sequence.
* Rounds to nearest integer.
*/
uint32_t DecodeNf32(const char *s, char **e) {
int diglet;
uint32_t x;
for (x = 0; (diglet = kNfcimal[*s & 255]) != -1; s++) {
if (__builtin_mul_overflow(x, 10, &x) ||
__builtin_add_overflow(x, diglet, &x)) {
errno = ERANGE;
x = -1;
break;
}
}
if (e) {
*e = (char *)s;
}
return x;
long long llrintf(float x) {
long long res;
#ifdef __x86_64__
asm("cvtss2si\t%1,%0" : "=res"(res) : "x"(x));
#elif defined(__aarch64__)
asm("frintx\t%s1,%s1\n\t"
"fcvtzs\t%x0,%s1"
: "=r"(res), "+w"(x));
#else
res = rintf(x);
#endif /* __x86_64__ */
return res;
}

View file

@ -34,7 +34,7 @@ asm(".ident\t\"\\n\\n\
Musl libc (MIT License)\\n\
Copyright 2005-2014 Rich Felker, et. al.\"");
asm(".include \"libc/disclaimer.inc\"");
/* clang-format off */
// clang-format off
/* origin: FreeBSD /usr/src/lib/msun/src/e_log10f.c */
/*
@ -62,6 +62,9 @@ Lg2 = 0xccce13.0p-25, /* 0.40000972152 */
Lg3 = 0x91e9ee.0p-25, /* 0.28498786688 */
Lg4 = 0xf89e26.0p-26; /* 0.24279078841 */
/**
* Calculates log𝑥.
*/
float log10f(float x)
{
union {float f; uint32_t i;} u = {x};

View file

@ -35,7 +35,7 @@ asm(".ident\t\"\\n\\n\
Musl libc (MIT License)\\n\
Copyright 2005-2014 Rich Felker, et. al.\"");
asm(".include \"libc/disclaimer.inc\"");
/* clang-format off */
// clang-format off
/* origin: OpenBSD /usr/src/lib/libm/src/ld80/e_log10l.c */
/*
@ -152,8 +152,23 @@ static const long double S[4] = {
#define SQRTH 0.70710678118654752440L
/**
* Calculates log𝑥.
*/
long double log10l(long double x)
{
#ifdef __x86__
long double lg2;
asm("fldlg2" : "=t"(lg2));
asm("fyl2x"
: "=t"(x)
: "0"(x), "u"(lg2)
: "st(1)");
return x;
#else
long double y, z;
int e;
@ -218,11 +233,16 @@ done:
z += x * (L10EA);
z += e * (L102A);
return z;
#endif /* __x86__ */
}
#elif LDBL_MANT_DIG == 113 && LDBL_MAX_EXP == 16384
// TODO: broken implementation to make things compile
long double log10l(long double x)
{
return log10(x);
}
#else
#error "architecture unsupported"
#endif

View file

@ -215,4 +215,6 @@ long double log1pl(long double x)
{
return log1p(x);
}
#else
#error "architecture unsupported"
#endif

View file

@ -217,4 +217,6 @@ long double log2l(long double x)
{
return log2(x);
}
#else
#error "architecture unsupported"
#endif

View file

@ -209,4 +209,6 @@ long double logl(long double x)
{
return log(x);
}
#else
#error "architecture unsupported"
#endif

View file

@ -25,7 +25,9 @@
SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*/
#include "libc/limits.h"
#include "libc/math.h"
#include "libc/runtime/fenv.h"
#include "libc/tinymath/expo.internal.h"
#include "libc/tinymath/feval.internal.h"
@ -33,7 +35,7 @@ asm(".ident\t\"\\n\\n\
Musl libc (MIT License)\\n\
Copyright 2005-2014 Rich Felker, et. al.\"");
asm(".include \"libc/disclaimer.inc\"");
/* clang-format off */
// clang-format off
/*
If the result cannot be represented (overflow, nan), then
@ -64,15 +66,9 @@ as a double.
#elif FLT_EVAL_METHOD==2
#define EPS LDBL_EPSILON
#endif
#ifdef __GNUC__
/* avoid stack frame in lrint */
__attribute__((__noinline__))
#endif
static long lrint_slow(double x)
{
static dontinline long lrint_slow(double x) {
// #pragma STDC FENV_ACCESS ON
int e;
e = fetestexcept(FE_INEXACT);
x = rint(x);
if (!e && (x > LONG_MAX || x < LONG_MIN))
@ -80,12 +76,33 @@ static long lrint_slow(double x)
/* conversion */
return x;
}
#else
#define JUST_CALL_RINT
#endif
long lrint(double x)
{
/**
* Rounds to nearest integer.
*/
long lrint(double x) {
#ifdef __x86_64__
long res;
asm("cvtsd2si\t%1,%0" : "=r"(res) : "x"(x));
return res;
#elif defined(__aarch64__)
long res;
asm("frintx\t%d1,%d1\n\t"
"fcvtzs\t%x0,%d1"
: "=r"(res), "+w"(x));
return res;
#elif defined(__powerpc64__) && defined(_ARCH_PWR5X)
long res;
asm("fctid\t%0,%1" : "=d"(res) : "d"(x));
return res;
#elif defined(JUST_CALL_RINT)
return rint(x);
#else
uint32_t abstop = asuint64(x)>>32 & 0x7fffffff;
uint64_t sign = asuint64(x) & (1ULL << 63);
if (abstop < 0x41dfffff) {
/* |x| < 0x7ffffc00, no overflow */
double_t toint = asdouble(asuint64(1/EPS) | sign);
@ -93,10 +110,5 @@ long lrint(double x)
return (long)y;
}
return lrint_slow(x);
#endif /* __x86_64__ */
}
#else
long lrint(double x)
{
return rint(x);
}
#endif

View file

@ -18,6 +18,21 @@
*/
#include "libc/math.h"
/**
* Rounds to nearest integer.
*/
long lrintf(float x) {
return rintf(x);
long res;
#ifdef __x86_64__
asm("cvtss2si\t%1,%0" : "=res"(res) : "x"(x));
#elif defined(__aarch64__)
asm("frintx\t%s1,%s1\n\t"
"fcvtzs\t%x0,%s1"
: "=r"(res), "+w"(x));
#elif defined(__powerpc64__)
asm("fctid\t%0,%1" : "=d"(res) : "f"(x));
#else
res = rintf(x);
#endif /* __x86_64__ */
return res;
}

View file

@ -18,6 +18,9 @@
*/
#include "libc/math.h"
/**
* Rounds 𝑥 to nearest integer, away from zero.
*/
long lround(double x) {
return round(x);
}

View file

@ -18,6 +18,19 @@
*/
#include "libc/math.h"
/**
* Rounds 𝑥 to nearest integer, away from zero.
*/
long lroundf(float x) {
return roundf(x);
long res;
#ifdef __aarch64__
asm("fcvtas\t%x0,%s1" : "=r"(res) : "w"(x));
#elif defined(__powerpc64__) && defined(__VSX__)
asm("xsrdpi\t%1,%1\n\t"
"fctid\t%0,%1"
: "=d"(res), "+f"(x));
#else
res = roundf(x);
#endif
return res;
}

View file

@ -31,7 +31,19 @@ asm(".ident\t\"\\n\\n\
Musl libc (MIT License)\\n\
Copyright 2005-2014 Rich Felker, et. al.\"");
asm(".include \"libc/disclaimer.inc\"");
/* clang-format off */
// clang-format off
#if LDBL_MANT_DIG == 53 && LDBL_MAX_EXP == 1024
long double modfl(long double x, long double *iptr)
{
double d;
long double r;
r = modf(x, &d);
*iptr = d;
return r;
}
#elif (LDBL_MANT_DIG == 64 || LDBL_MANT_DIG == 113) && LDBL_MAX_EXP == 16384
static const long double toint = 1/LDBL_EPSILON;
@ -77,3 +89,7 @@ long double modfl(long double x, long double *iptr)
*iptr = x + y;
return -y;
}
#else
#error "architecture unsupported"
#endif

View file

@ -19,7 +19,15 @@
#include "libc/math.h"
#include "libc/runtime/fenv.h"
/**
* Rounds to nearest integer.
*/
double nearbyint(double x) {
#ifdef __aarch64__
asm("frinti\t%d0,%d1" : "=w"(x) : "w"(x));
#elif defined(__s390x__) && (defined(__HTM__) || __ARCH__ >= 9)
asm("fidbra\t%0,0,%1,4" : "=f"(x) : "f"(x));
#else
#ifdef FE_INEXACT
// #pragma STDC FENV_ACCESS ON
int e;
@ -29,5 +37,6 @@ double nearbyint(double x) {
#ifdef FE_INEXACT
if (!e) feclearexcept(FE_INEXACT);
#endif
#endif /* __aarch64__ */
return x;
}

View file

@ -19,6 +19,9 @@
#include "libc/math.h"
#include "libc/runtime/fenv.h"
/**
* Rounds to nearest integer.
*/
float nearbyintf(float x) {
#ifdef FE_INEXACT
// #pragma STDC FENV_ACCESS ON

View file

@ -19,6 +19,9 @@
#include "libc/math.h"
#include "libc/runtime/fenv.h"
/**
* Rounds to nearest integer.
*/
long double nearbyintl(long double x) {
#if LDBL_MANT_DIG == 53 && LDBL_MAX_EXP == 1024
return nearbyint(x);

View file

@ -100,5 +100,7 @@ long double nextafterl(long double x, long double y) {
if ((ux.i.se & 0x7fff) == 0)
FORCE_EVAL(x*x + ux.f*ux.f);
return ux.f;
#else
#error "architecture unsupported"
#endif
}

View file

@ -33,7 +33,9 @@ long double powl(long double x, long double y) {
if (x) {
if (y) {
if (x < 0 && y != truncl(y)) {
#ifndef __NO_MATH_ERRNO__
errno = EDOM;
#endif
return NAN;
}
asm("fyl2x" : "=t"(u) : "0"(fabsl(x)), "u"(y) : "st(1)");
@ -57,7 +59,9 @@ long double powl(long double x, long double y) {
} else if (!y) {
return 1;
} else {
#ifndef __NO_MATH_ERRNO__
errno = ERANGE;
#endif
if (y == truncl(y) && ((int64_t)y & 1)) {
return copysignl(INFINITY, x);
} else {
@ -619,6 +623,8 @@ long double powl(long double x, long double y)
{
return pow(x, y);
}
#else
#error "architecture unsupported"
#endif
#endif /* __x86_64__ */

View file

@ -27,6 +27,7 @@
*/
#include "libc/intrin/likely.h"
#include "libc/math.h"
#include "libc/runtime/fenv.h"
#include "libc/tinymath/kernel.internal.h"
asm(".ident\t\"\\n\\n\

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