mirror of
https://github.com/jart/cosmopolitan.git
synced 2025-06-01 02:02:28 +00:00
Prevent Make from talking to public Internet
This change introduces the nointernet() function which may be called to prevent a process and its descendants from communicating with publicly routable Internet addresses. GNU Make has been modified to always call this function. In the future Landlock Make will have a way to whitelist subnets to override this behavior, or disable it entirely. Support is available for Linux only. Our firewall does not require root access. Calling nointernet() will return control to the caller inside a new process that has a SECCOMP BPF filter installed, which traps network related system calls. Your original process then becomes a permanent ptrace() supervisor that monitors all processes and threads descending from the returned child. Whenever a networking system call happens the kernel will stop the process and wakes up the monitor, which then peeks into the child memory to read the sockaddr_in to determine if it's ok. The downside to doing this is that there can be only one supervisor at a time using ptrace() on a process. So this firewall won't be enabled if you run make under strace or inside gdb. It also makes testing tricky.
This commit is contained in:
Justine Tunney
parent
8a0a2c0c36
commit
7cf66bc161
48 changed files with 4924 additions and 2046 deletions
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@ -17,22 +17,74 @@
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│ PERFORMANCE OF THIS SOFTWARE. │
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╚─────────────────────────────────────────────────────────────────────────────*/
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#include "libc/dce.h"
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#include "libc/intrin/pshufd.h"
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#include "libc/intrin/pshufhw.h"
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#include "libc/intrin/pshuflw.h"
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#include "libc/intrin/pshufw.h"
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#include "libc/intrin/shufpd.h"
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#include "libc/intrin/shufps.h"
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#include "libc/log/log.h"
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#include "libc/macros.internal.h"
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#include "libc/math.h"
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#include "libc/str/str.h"
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#include "tool/build/lib/endian.h"
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#include "tool/build/lib/flags.h"
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#include "tool/build/lib/fpu.h"
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#include "tool/build/lib/modrm.h"
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#include "tool/build/lib/pun.h"
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#include "tool/build/lib/ssefloat.h"
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#include "tool/build/lib/throw.h"
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static void pshufw(int16_t b[4], const int16_t a[4], int m) {
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int16_t t[4];
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t[0] = a[(m & 0003) >> 0];
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t[1] = a[(m & 0014) >> 2];
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t[2] = a[(m & 0060) >> 4];
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t[3] = a[(m & 0300) >> 6];
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b[0] = t[0];
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b[1] = t[1];
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b[2] = t[2];
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b[3] = t[3];
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}
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static void pshufd(int32_t b[4], const int32_t a[4], int m) {
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int32_t t[4];
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t[0] = a[(m & 0003) >> 0];
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t[1] = a[(m & 0014) >> 2];
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t[2] = a[(m & 0060) >> 4];
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t[3] = a[(m & 0300) >> 6];
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b[0] = t[0];
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b[1] = t[1];
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b[2] = t[2];
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b[3] = t[3];
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}
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static void pshuflw(int16_t b[8], const int16_t a[8], int m) {
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int16_t t[4];
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t[0] = a[(m & 0003) >> 0];
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t[1] = a[(m & 0014) >> 2];
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t[2] = a[(m & 0060) >> 4];
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t[3] = a[(m & 0300) >> 6];
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b[0] = t[0];
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b[1] = t[1];
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b[2] = t[2];
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b[3] = t[3];
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b[4] = a[4];
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b[5] = a[5];
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b[6] = a[6];
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b[7] = a[7];
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}
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static void pshufhw(int16_t b[8], const int16_t a[8], int m) {
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int16_t t[4];
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t[0] = a[4 + ((m & 0003) >> 0)];
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t[1] = a[4 + ((m & 0014) >> 2)];
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t[2] = a[4 + ((m & 0060) >> 4)];
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t[3] = a[4 + ((m & 0300) >> 6)];
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b[0] = a[0];
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b[1] = a[1];
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b[2] = a[2];
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b[3] = a[3];
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b[4] = t[0];
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b[5] = t[1];
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b[6] = t[2];
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b[7] = t[3];
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}
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void OpUnpcklpsd(struct Machine *m, uint32_t rde) {
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uint8_t *a, *b;
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a = XmmRexrReg(m, rde);
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@ -83,37 +135,65 @@ void OpShuffle(struct Machine *m, uint32_t rde) {
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switch (Rep(rde) | Osz(rde)) {
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case 0:
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memcpy(q16, GetModrmRegisterXmmPointerRead8(m, rde), 8);
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(pshufw)(q16, q16, m->xedd->op.uimm0);
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pshufw(q16, q16, m->xedd->op.uimm0);
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memcpy(XmmRexrReg(m, rde), q16, 8);
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break;
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case 1:
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memcpy(x32, GetModrmRegisterXmmPointerRead16(m, rde), 16);
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(pshufd)(x32, x32, m->xedd->op.uimm0);
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pshufd(x32, x32, m->xedd->op.uimm0);
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memcpy(XmmRexrReg(m, rde), x32, 16);
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break;
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case 2:
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memcpy(x16, GetModrmRegisterXmmPointerRead16(m, rde), 16);
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(pshuflw)(x16, x16, m->xedd->op.uimm0);
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pshuflw(x16, x16, m->xedd->op.uimm0);
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memcpy(XmmRexrReg(m, rde), x16, 16);
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break;
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case 3:
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memcpy(x16, GetModrmRegisterXmmPointerRead16(m, rde), 16);
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(pshufhw)(x16, x16, m->xedd->op.uimm0);
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pshufhw(x16, x16, m->xedd->op.uimm0);
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memcpy(XmmRexrReg(m, rde), x16, 16);
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break;
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default:
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unreachable;
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for (;;) (void)0;
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}
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}
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static void Shufps(struct Machine *m, uint32_t rde) {
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shufps((void *)XmmRexrReg(m, rde), (void *)XmmRexrReg(m, rde),
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(void *)GetModrmRegisterXmmPointerRead16(m, rde), m->xedd->op.uimm0);
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uint8_t *p;
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union FloatPun x[4], y[4], z[4];
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p = GetModrmRegisterXmmPointerRead16(m, rde);
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y[0].i = Read32(p + 0 * 4);
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y[1].i = Read32(p + 1 * 4);
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y[2].i = Read32(p + 2 * 4);
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y[3].i = Read32(p + 3 * 4);
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p = XmmRexrReg(m, rde);
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x[0].i = Read32(p + 0 * 4);
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x[1].i = Read32(p + 1 * 4);
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x[2].i = Read32(p + 2 * 4);
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x[3].i = Read32(p + 3 * 4);
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z[0].f = y[(m->xedd->op.uimm0 & 0003) >> 0].f;
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z[1].f = y[(m->xedd->op.uimm0 & 0014) >> 2].f;
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z[2].f = x[(m->xedd->op.uimm0 & 0060) >> 4].f;
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z[3].f = x[(m->xedd->op.uimm0 & 0300) >> 6].f;
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Write32(p + 0 * 4, z[0].i);
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Write32(p + 1 * 4, z[1].i);
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Write32(p + 2 * 4, z[2].i);
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Write32(p + 3 * 4, z[3].i);
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}
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static void Shufpd(struct Machine *m, uint32_t rde) {
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shufpd((void *)XmmRexrReg(m, rde), (void *)XmmRexrReg(m, rde),
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(void *)GetModrmRegisterXmmPointerRead16(m, rde), m->xedd->op.uimm0);
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uint8_t *p;
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union DoublePun x[2], y[2], z[2];
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p = GetModrmRegisterXmmPointerRead16(m, rde);
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y[0].i = Read64(p + 0 * 4);
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y[1].i = Read64(p + 1 * 4);
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p = XmmRexrReg(m, rde);
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x[0].i = Read64(p + 0 * 4);
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x[1].i = Read64(p + 1 * 4);
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z[0].f = y[(m->xedd->op.uimm0 & 0001) >> 0].f;
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z[1].f = x[(m->xedd->op.uimm0 & 0002) >> 1].f;
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Write64(p + 0 * 4, z[0].i);
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Write64(p + 1 * 4, z[1].i);
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}
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void OpShufpsd(struct Machine *m, uint32_t rde) {
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@ -125,84 +205,125 @@ void OpShufpsd(struct Machine *m, uint32_t rde) {
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}
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void OpSqrtpsd(struct Machine *m, uint32_t rde) {
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long i;
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float xf[4];
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double xd[2];
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switch (Rep(rde) | Osz(rde)) {
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case 0:
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memcpy(xf, GetModrmRegisterXmmPointerRead16(m, rde), 16);
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for (i = 0; i < 4; ++i) xf[i] = sqrtf(xf[i]);
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memcpy(XmmRexrReg(m, rde), xf, 16);
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case 0: {
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int i;
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uint8_t *p;
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union FloatPun u[4];
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p = GetModrmRegisterXmmPointerRead16(m, rde);
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u[0].i = Read32(p + 0 * 4);
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u[1].i = Read32(p + 1 * 4);
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u[2].i = Read32(p + 2 * 4);
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u[3].i = Read32(p + 3 * 4);
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for (i = 0; i < 4; ++i) u[i].f = sqrtf(u[i].f);
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p = XmmRexrReg(m, rde);
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Write32(p + 0 * 4, u[0].i);
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Write32(p + 1 * 4, u[1].i);
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Write32(p + 2 * 4, u[2].i);
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Write32(p + 3 * 4, u[3].i);
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break;
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case 1:
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memcpy(xd, GetModrmRegisterXmmPointerRead16(m, rde), 16);
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for (i = 0; i < 2; ++i) xd[i] = sqrt(xd[i]);
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memcpy(XmmRexrReg(m, rde), xd, 16);
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}
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case 1: {
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int i;
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uint8_t *p;
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union DoublePun u[2];
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p = GetModrmRegisterXmmPointerRead16(m, rde);
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u[0].i = Read32(p + 0 * 8);
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u[1].i = Read32(p + 1 * 8);
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for (i = 0; i < 2; ++i) u[i].f = sqrt(u[i].f);
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p = XmmRexrReg(m, rde);
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Write32(p + 0 * 8, u[0].i);
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Write32(p + 1 * 8, u[1].i);
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break;
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case 2:
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memcpy(xd, GetModrmRegisterXmmPointerRead8(m, rde), 8);
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xd[0] = sqrt(xd[0]);
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memcpy(XmmRexrReg(m, rde), xd, 8);
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}
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case 2: {
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union DoublePun u;
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u.i = Read64(GetModrmRegisterXmmPointerRead8(m, rde));
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u.f = sqrt(u.f);
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Write64(XmmRexrReg(m, rde), u.i);
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break;
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case 3:
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memcpy(xf, GetModrmRegisterXmmPointerRead4(m, rde), 4);
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xf[0] = sqrtf(xf[0]);
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memcpy(XmmRexrReg(m, rde), xf, 4);
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}
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case 3: {
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union FloatPun u;
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u.i = Read32(GetModrmRegisterXmmPointerRead4(m, rde));
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u.f = sqrtf(u.f);
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Write32(XmmRexrReg(m, rde), u.i);
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break;
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}
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default:
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unreachable;
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for (;;) (void)0;
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}
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}
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void OpRsqrtps(struct Machine *m, uint32_t rde) {
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float x[4];
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unsigned i;
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if (Rep(rde) != 3) {
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memcpy(x, GetModrmRegisterXmmPointerRead16(m, rde), 16);
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for (i = 0; i < 4; ++i) x[i] = 1.f / sqrtf(x[i]);
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memcpy(XmmRexrReg(m, rde), x, 16);
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int i;
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uint8_t *p;
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union FloatPun u[4];
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p = GetModrmRegisterXmmPointerRead16(m, rde);
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u[0].i = Read32(p + 0 * 4);
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u[1].i = Read32(p + 1 * 4);
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u[2].i = Read32(p + 2 * 4);
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u[3].i = Read32(p + 3 * 4);
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for (i = 0; i < 4; ++i) u[i].f = 1.f / sqrtf(u[i].f);
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p = XmmRexrReg(m, rde);
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Write32(p + 0 * 4, u[0].i);
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Write32(p + 1 * 4, u[1].i);
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Write32(p + 2 * 4, u[2].i);
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Write32(p + 3 * 4, u[3].i);
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} else {
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memcpy(x, GetModrmRegisterXmmPointerRead4(m, rde), 4);
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x[0] = 1.f / sqrtf(x[0]);
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memcpy(XmmRexrReg(m, rde), x, 4);
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union FloatPun u;
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u.i = Read32(GetModrmRegisterXmmPointerRead4(m, rde));
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u.f = 1.f / sqrtf(u.f);
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Write32(XmmRexrReg(m, rde), u.i);
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}
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}
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void OpRcpps(struct Machine *m, uint32_t rde) {
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float x[4];
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unsigned i;
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if (Rep(rde) != 3) {
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memcpy(x, GetModrmRegisterXmmPointerRead16(m, rde), 16);
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for (i = 0; i < 4; ++i) x[i] = 1.f / x[i];
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memcpy(XmmRexrReg(m, rde), x, 16);
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int i;
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uint8_t *p;
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union FloatPun u[4];
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p = GetModrmRegisterXmmPointerRead16(m, rde);
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u[0].i = Read32(p + 0 * 4);
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u[1].i = Read32(p + 1 * 4);
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u[2].i = Read32(p + 2 * 4);
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u[3].i = Read32(p + 3 * 4);
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for (i = 0; i < 4; ++i) u[i].f = 1.f / u[i].f;
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p = XmmRexrReg(m, rde);
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Write32(p + 0 * 4, u[0].i);
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Write32(p + 1 * 4, u[1].i);
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Write32(p + 2 * 4, u[2].i);
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Write32(p + 3 * 4, u[3].i);
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} else {
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memcpy(x, GetModrmRegisterXmmPointerRead4(m, rde), 4);
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x[0] = 1.f / x[0];
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memcpy(XmmRexrReg(m, rde), x, 4);
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union FloatPun u;
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u.i = Read32(GetModrmRegisterXmmPointerRead4(m, rde));
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u.f = 1.f / u.f;
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Write32(XmmRexrReg(m, rde), u.i);
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}
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}
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void OpComissVsWs(struct Machine *m, uint32_t rde) {
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float xf, yf;
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double xd, yd;
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uint8_t zf, cf, pf, ie;
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if (!Osz(rde)) {
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memcpy(&xf, XmmRexrReg(m, rde), 4);
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memcpy(&yf, GetModrmRegisterXmmPointerRead4(m, rde), 4);
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if (!isnan(xf) && !isnan(yf)) {
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zf = xf == yf;
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cf = xf < yf;
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union FloatPun xf, yf;
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xf.i = Read32(XmmRexrReg(m, rde));
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yf.i = Read32(GetModrmRegisterXmmPointerRead4(m, rde));
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if (!isnan(xf.f) && !isnan(yf.f)) {
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zf = xf.f == yf.f;
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cf = xf.f < yf.f;
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pf = false;
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ie = false;
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} else {
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zf = cf = pf = ie = true;
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}
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} else {
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memcpy(&xd, XmmRexrReg(m, rde), 8);
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memcpy(&yd, GetModrmRegisterXmmPointerRead8(m, rde), 8);
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if (!isnan(xd) && !isnan(yd)) {
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zf = xd == yd;
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cf = xd < yd;
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union DoublePun xd, yd;
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xd.i = Read64(XmmRexrReg(m, rde));
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yd.i = Read64(GetModrmRegisterXmmPointerRead8(m, rde));
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if (!isnan(xd.f) && !isnan(yd.f)) {
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zf = xd.f == yd.f;
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cf = xd.f < yd.f;
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pf = false;
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ie = false;
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} else {
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@ -214,11 +335,141 @@ void OpComissVsWs(struct Machine *m, uint32_t rde) {
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m->flags = SetFlag(m->flags, FLAGS_CF, cf);
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m->flags = SetFlag(m->flags, FLAGS_SF, false);
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m->flags = SetFlag(m->flags, FLAGS_OF, false);
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if ((m->xedd->op.opcode & 1) && (m->sse.ie = ie) && !m->sse.im) {
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HaltMachine(m, kMachineSimdException);
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if (m->xedd->op.opcode & 1) {
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m->mxcsr &= ~kMxcsrIe;
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if (ie) {
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m->mxcsr |= kMxcsrIe;
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if (!(m->mxcsr & kMxcsrIm)) {
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HaltMachine(m, kMachineSimdException);
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}
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}
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}
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}
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static inline void OpPsd(struct Machine *m, uint32_t rde,
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float fs(float x, float y),
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double fd(double x, double y)) {
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if (Rep(rde) == 2) {
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union DoublePun x, y;
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y.i = Read64(GetModrmRegisterXmmPointerRead8(m, rde));
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x.i = Read64(XmmRexrReg(m, rde));
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x.f = fd(x.f, y.f);
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Write64(XmmRexrReg(m, rde), x.i);
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} else if (Rep(rde) == 3) {
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union FloatPun x, y;
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y.i = Read32(GetModrmRegisterXmmPointerRead4(m, rde));
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x.i = Read32(XmmRexrReg(m, rde));
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||||
x.f = fs(x.f, y.f);
|
||||
Write32(XmmRexrReg(m, rde), x.i);
|
||||
} else if (Osz(rde)) {
|
||||
uint8_t *p;
|
||||
union DoublePun x[2], y[2];
|
||||
p = GetModrmRegisterXmmPointerRead16(m, rde);
|
||||
y[0].i = Read64(p + 0 * 8);
|
||||
y[1].i = Read64(p + 1 * 8);
|
||||
p = XmmRexrReg(m, rde);
|
||||
x[0].i = Read64(p + 0 * 8);
|
||||
x[1].i = Read64(p + 1 * 8);
|
||||
x[0].f = fd(x[0].f, y[0].f);
|
||||
x[1].f = fd(x[1].f, y[1].f);
|
||||
Write64(p + 0 * 8, x[0].i);
|
||||
Write64(p + 1 * 8, x[1].i);
|
||||
} else {
|
||||
uint8_t *p;
|
||||
union FloatPun x[4], y[4];
|
||||
p = GetModrmRegisterXmmPointerRead16(m, rde);
|
||||
y[0].i = Read32(p + 0 * 4);
|
||||
y[1].i = Read32(p + 1 * 4);
|
||||
y[2].i = Read32(p + 2 * 4);
|
||||
y[3].i = Read32(p + 3 * 4);
|
||||
p = XmmRexrReg(m, rde);
|
||||
x[0].i = Read32(p + 0 * 4);
|
||||
x[1].i = Read32(p + 1 * 4);
|
||||
x[2].i = Read32(p + 2 * 4);
|
||||
x[3].i = Read32(p + 3 * 4);
|
||||
x[0].f = fs(x[0].f, y[0].f);
|
||||
x[1].f = fs(x[1].f, y[1].f);
|
||||
x[2].f = fs(x[2].f, y[2].f);
|
||||
x[3].f = fs(x[3].f, y[3].f);
|
||||
Write32(p + 0 * 4, x[0].i);
|
||||
Write32(p + 1 * 4, x[1].i);
|
||||
Write32(p + 2 * 4, x[2].i);
|
||||
Write32(p + 3 * 4, x[3].i);
|
||||
}
|
||||
}
|
||||
|
||||
static inline float Adds(float x, float y) {
|
||||
return x + y;
|
||||
}
|
||||
|
||||
static inline double Addd(double x, double y) {
|
||||
return x + y;
|
||||
}
|
||||
|
||||
void OpAddpsd(struct Machine *m, uint32_t rde) {
|
||||
OpPsd(m, rde, Adds, Addd);
|
||||
}
|
||||
|
||||
static inline float Subs(float x, float y) {
|
||||
return x - y;
|
||||
}
|
||||
|
||||
static inline double Subd(double x, double y) {
|
||||
return x - y;
|
||||
}
|
||||
|
||||
void OpSubpsd(struct Machine *m, uint32_t rde) {
|
||||
OpPsd(m, rde, Subs, Subd);
|
||||
}
|
||||
|
||||
static inline float Muls(float x, float y) {
|
||||
return x * y;
|
||||
}
|
||||
|
||||
static inline double Muld(double x, double y) {
|
||||
return x * y;
|
||||
}
|
||||
|
||||
void OpMulpsd(struct Machine *m, uint32_t rde) {
|
||||
OpPsd(m, rde, Muls, Muld);
|
||||
}
|
||||
|
||||
static inline float Divs(float x, float y) {
|
||||
return x / y;
|
||||
}
|
||||
|
||||
static inline double Divd(double x, double y) {
|
||||
return x / y;
|
||||
}
|
||||
|
||||
void OpDivpsd(struct Machine *m, uint32_t rde) {
|
||||
OpPsd(m, rde, Divs, Divd);
|
||||
}
|
||||
|
||||
static inline float Mins(float x, float y) {
|
||||
return MIN(x, y);
|
||||
}
|
||||
|
||||
static inline double Mind(double x, double y) {
|
||||
return MIN(x, y);
|
||||
}
|
||||
|
||||
void OpMinpsd(struct Machine *m, uint32_t rde) {
|
||||
OpPsd(m, rde, Mins, Mind);
|
||||
}
|
||||
|
||||
static inline float Maxs(float x, float y) {
|
||||
return MAX(x, y);
|
||||
}
|
||||
|
||||
static inline double Maxd(double x, double y) {
|
||||
return MAX(x, y);
|
||||
}
|
||||
|
||||
void OpMaxpsd(struct Machine *m, uint32_t rde) {
|
||||
OpPsd(m, rde, Maxs, Maxd);
|
||||
}
|
||||
|
||||
static int Cmps(int imm, float x, float y) {
|
||||
switch (imm) {
|
||||
case 0:
|
||||
|
|
@ -243,7 +494,6 @@ static int Cmps(int imm, float x, float y) {
|
|||
}
|
||||
|
||||
static int32_t Cmpd(int imm, double x, double y) {
|
||||
long i;
|
||||
switch (imm) {
|
||||
case 0:
|
||||
return x == y ? -1 : 0;
|
||||
|
|
@ -266,228 +516,54 @@ static int32_t Cmpd(int imm, double x, double y) {
|
|||
}
|
||||
}
|
||||
|
||||
void OpAddpsd(struct Machine *m, uint32_t rde) {
|
||||
if (Rep(rde) == 2) {
|
||||
double x, y;
|
||||
memcpy(&y, GetModrmRegisterXmmPointerRead8(m, rde), 8);
|
||||
memcpy(&x, XmmRexrReg(m, rde), 8);
|
||||
x += y;
|
||||
memcpy(XmmRexrReg(m, rde), &x, 8);
|
||||
} else if (Rep(rde) == 3) {
|
||||
float x, y;
|
||||
memcpy(&y, GetModrmRegisterXmmPointerRead4(m, rde), 4);
|
||||
memcpy(&x, XmmRexrReg(m, rde), 4);
|
||||
x += y;
|
||||
memcpy(XmmRexrReg(m, rde), &x, 4);
|
||||
} else if (Osz(rde)) {
|
||||
double x[2], y[2];
|
||||
memcpy(y, GetModrmRegisterXmmPointerRead16(m, rde), 16);
|
||||
memcpy(x, XmmRexrReg(m, rde), 16);
|
||||
x[0] += y[0];
|
||||
x[1] += y[1];
|
||||
memcpy(XmmRexrReg(m, rde), x, 16);
|
||||
} else {
|
||||
float x[4], y[4];
|
||||
memcpy(y, GetModrmRegisterXmmPointerRead16(m, rde), 16);
|
||||
memcpy(x, XmmRexrReg(m, rde), 16);
|
||||
x[0] += y[0];
|
||||
x[1] += y[1];
|
||||
x[2] += y[2];
|
||||
x[3] += y[3];
|
||||
memcpy(XmmRexrReg(m, rde), x, 16);
|
||||
}
|
||||
}
|
||||
|
||||
void OpMulpsd(struct Machine *m, uint32_t rde) {
|
||||
if (Rep(rde) == 2) {
|
||||
double x, y;
|
||||
memcpy(&y, GetModrmRegisterXmmPointerRead8(m, rde), 8);
|
||||
memcpy(&x, XmmRexrReg(m, rde), 8);
|
||||
x *= y;
|
||||
memcpy(XmmRexrReg(m, rde), &x, 8);
|
||||
} else if (Rep(rde) == 3) {
|
||||
float x, y;
|
||||
memcpy(&y, GetModrmRegisterXmmPointerRead4(m, rde), 4);
|
||||
memcpy(&x, XmmRexrReg(m, rde), 4);
|
||||
x *= y;
|
||||
memcpy(XmmRexrReg(m, rde), &x, 4);
|
||||
} else if (Osz(rde)) {
|
||||
double x[2], y[2];
|
||||
memcpy(y, GetModrmRegisterXmmPointerRead16(m, rde), 16);
|
||||
memcpy(x, XmmRexrReg(m, rde), 16);
|
||||
x[0] *= y[0];
|
||||
x[1] *= y[1];
|
||||
memcpy(XmmRexrReg(m, rde), x, 16);
|
||||
} else {
|
||||
float x[4], y[4];
|
||||
memcpy(y, GetModrmRegisterXmmPointerRead16(m, rde), 16);
|
||||
memcpy(x, XmmRexrReg(m, rde), 16);
|
||||
x[0] *= y[0];
|
||||
x[1] *= y[1];
|
||||
x[2] *= y[2];
|
||||
x[3] *= y[3];
|
||||
memcpy(XmmRexrReg(m, rde), x, 16);
|
||||
}
|
||||
}
|
||||
|
||||
void OpSubpsd(struct Machine *m, uint32_t rde) {
|
||||
if (Rep(rde) == 2) {
|
||||
double x, y;
|
||||
memcpy(&y, GetModrmRegisterXmmPointerRead8(m, rde), 8);
|
||||
memcpy(&x, XmmRexrReg(m, rde), 8);
|
||||
x -= y;
|
||||
memcpy(XmmRexrReg(m, rde), &x, 8);
|
||||
} else if (Rep(rde) == 3) {
|
||||
float x, y;
|
||||
memcpy(&y, GetModrmRegisterXmmPointerRead4(m, rde), 4);
|
||||
memcpy(&x, XmmRexrReg(m, rde), 4);
|
||||
x -= y;
|
||||
memcpy(XmmRexrReg(m, rde), &x, 4);
|
||||
} else if (Osz(rde)) {
|
||||
double x[2], y[2];
|
||||
memcpy(y, GetModrmRegisterXmmPointerRead16(m, rde), 16);
|
||||
memcpy(x, XmmRexrReg(m, rde), 16);
|
||||
x[0] -= y[0];
|
||||
x[1] -= y[1];
|
||||
memcpy(XmmRexrReg(m, rde), x, 16);
|
||||
} else {
|
||||
float x[4], y[4];
|
||||
memcpy(y, GetModrmRegisterXmmPointerRead16(m, rde), 16);
|
||||
memcpy(x, XmmRexrReg(m, rde), 16);
|
||||
x[0] -= y[0];
|
||||
x[1] -= y[1];
|
||||
x[2] -= y[2];
|
||||
x[3] -= y[3];
|
||||
memcpy(XmmRexrReg(m, rde), x, 16);
|
||||
}
|
||||
}
|
||||
|
||||
void OpDivpsd(struct Machine *m, uint32_t rde) {
|
||||
if (Rep(rde) == 2) {
|
||||
double x, y;
|
||||
memcpy(&y, GetModrmRegisterXmmPointerRead8(m, rde), 8);
|
||||
memcpy(&x, XmmRexrReg(m, rde), 8);
|
||||
x /= y;
|
||||
memcpy(XmmRexrReg(m, rde), &x, 8);
|
||||
} else if (Rep(rde) == 3) {
|
||||
float x, y;
|
||||
memcpy(&y, GetModrmRegisterXmmPointerRead4(m, rde), 4);
|
||||
memcpy(&x, XmmRexrReg(m, rde), 4);
|
||||
x /= y;
|
||||
memcpy(XmmRexrReg(m, rde), &x, 4);
|
||||
} else if (Osz(rde)) {
|
||||
double x[2], y[2];
|
||||
memcpy(y, GetModrmRegisterXmmPointerRead16(m, rde), 16);
|
||||
memcpy(x, XmmRexrReg(m, rde), 16);
|
||||
x[0] /= y[0];
|
||||
x[1] /= y[1];
|
||||
memcpy(XmmRexrReg(m, rde), x, 16);
|
||||
} else {
|
||||
float x[4], y[4];
|
||||
memcpy(y, GetModrmRegisterXmmPointerRead16(m, rde), 16);
|
||||
memcpy(x, XmmRexrReg(m, rde), 16);
|
||||
x[0] /= y[0];
|
||||
x[1] /= y[1];
|
||||
x[2] /= y[2];
|
||||
x[3] /= y[3];
|
||||
memcpy(XmmRexrReg(m, rde), x, 16);
|
||||
}
|
||||
}
|
||||
|
||||
void OpMinpsd(struct Machine *m, uint32_t rde) {
|
||||
if (Rep(rde) == 2) {
|
||||
double x, y;
|
||||
memcpy(&y, GetModrmRegisterXmmPointerRead8(m, rde), 8);
|
||||
memcpy(&x, XmmRexrReg(m, rde), 8);
|
||||
x = MIN(x, y);
|
||||
memcpy(XmmRexrReg(m, rde), &x, 8);
|
||||
} else if (Rep(rde) == 3) {
|
||||
float x, y;
|
||||
memcpy(&y, GetModrmRegisterXmmPointerRead4(m, rde), 4);
|
||||
memcpy(&x, XmmRexrReg(m, rde), 4);
|
||||
x = MIN(x, y);
|
||||
memcpy(XmmRexrReg(m, rde), &x, 4);
|
||||
} else if (Osz(rde)) {
|
||||
double x[2], y[2];
|
||||
memcpy(y, GetModrmRegisterXmmPointerRead16(m, rde), 16);
|
||||
memcpy(x, XmmRexrReg(m, rde), 16);
|
||||
x[0] = MIN(x[0], y[0]);
|
||||
x[1] = MIN(x[1], y[1]);
|
||||
memcpy(XmmRexrReg(m, rde), x, 16);
|
||||
} else {
|
||||
float x[4], y[4];
|
||||
memcpy(y, GetModrmRegisterXmmPointerRead16(m, rde), 16);
|
||||
memcpy(x, XmmRexrReg(m, rde), 16);
|
||||
x[0] = MIN(x[0], y[0]);
|
||||
x[1] = MIN(x[1], y[1]);
|
||||
x[2] = MIN(x[2], y[2]);
|
||||
x[3] = MIN(x[3], y[3]);
|
||||
memcpy(XmmRexrReg(m, rde), x, 16);
|
||||
}
|
||||
}
|
||||
|
||||
void OpMaxpsd(struct Machine *m, uint32_t rde) {
|
||||
if (Rep(rde) == 2) {
|
||||
double x, y;
|
||||
memcpy(&y, GetModrmRegisterXmmPointerRead8(m, rde), 8);
|
||||
memcpy(&x, XmmRexrReg(m, rde), 8);
|
||||
x = MAX(x, y);
|
||||
memcpy(XmmRexrReg(m, rde), &x, 8);
|
||||
} else if (Rep(rde) == 3) {
|
||||
float x, y;
|
||||
memcpy(&y, GetModrmRegisterXmmPointerRead4(m, rde), 4);
|
||||
memcpy(&x, XmmRexrReg(m, rde), 4);
|
||||
x = MAX(x, y);
|
||||
memcpy(XmmRexrReg(m, rde), &x, 4);
|
||||
} else if (Osz(rde)) {
|
||||
double x[2], y[2];
|
||||
memcpy(y, GetModrmRegisterXmmPointerRead16(m, rde), 16);
|
||||
memcpy(x, XmmRexrReg(m, rde), 16);
|
||||
x[0] = MAX(x[0], y[0]);
|
||||
x[1] = MAX(x[1], y[1]);
|
||||
memcpy(XmmRexrReg(m, rde), x, 16);
|
||||
} else {
|
||||
float x[4], y[4];
|
||||
memcpy(y, GetModrmRegisterXmmPointerRead16(m, rde), 16);
|
||||
memcpy(x, XmmRexrReg(m, rde), 16);
|
||||
x[0] = MAX(x[0], y[0]);
|
||||
x[1] = MAX(x[1], y[1]);
|
||||
x[2] = MAX(x[2], y[2]);
|
||||
x[3] = MAX(x[3], y[3]);
|
||||
memcpy(XmmRexrReg(m, rde), x, 16);
|
||||
}
|
||||
}
|
||||
|
||||
void OpCmppsd(struct Machine *m, uint32_t rde) {
|
||||
int imm = m->xedd->op.uimm0;
|
||||
if (Rep(rde) == 2) {
|
||||
double x, y;
|
||||
memcpy(&y, GetModrmRegisterXmmPointerRead8(m, rde), 8);
|
||||
memcpy(&x, XmmRexrReg(m, rde), 8);
|
||||
x = Cmpd(imm, x, y);
|
||||
memcpy(XmmRexrReg(m, rde), &x, 8);
|
||||
union DoublePun x, y;
|
||||
y.i = Read64(GetModrmRegisterXmmPointerRead8(m, rde));
|
||||
x.i = Read64(XmmRexrReg(m, rde));
|
||||
x.f = Cmpd(imm, x.f, y.f);
|
||||
Write64(XmmRexrReg(m, rde), x.i);
|
||||
} else if (Rep(rde) == 3) {
|
||||
float x, y;
|
||||
memcpy(&y, GetModrmRegisterXmmPointerRead4(m, rde), 4);
|
||||
memcpy(&x, XmmRexrReg(m, rde), 4);
|
||||
x = Cmps(imm, x, y);
|
||||
memcpy(XmmRexrReg(m, rde), &x, 4);
|
||||
union FloatPun x, y;
|
||||
y.i = Read32(GetModrmRegisterXmmPointerRead4(m, rde));
|
||||
x.i = Read32(XmmRexrReg(m, rde));
|
||||
x.f = Cmps(imm, x.f, y.f);
|
||||
Write32(XmmRexrReg(m, rde), x.i);
|
||||
} else if (Osz(rde)) {
|
||||
double x[2], y[2];
|
||||
memcpy(y, GetModrmRegisterXmmPointerRead16(m, rde), 16);
|
||||
memcpy(x, XmmRexrReg(m, rde), 16);
|
||||
x[0] = Cmpd(imm, x[0], y[0]);
|
||||
x[1] = Cmpd(imm, x[1], y[1]);
|
||||
memcpy(XmmRexrReg(m, rde), x, 16);
|
||||
uint8_t *p;
|
||||
union DoublePun x[2], y[2];
|
||||
p = GetModrmRegisterXmmPointerRead16(m, rde);
|
||||
y[0].i = Read64(p + 0 * 8);
|
||||
y[1].i = Read64(p + 1 * 8);
|
||||
p = XmmRexrReg(m, rde);
|
||||
x[0].i = Read64(p + 0 * 8);
|
||||
x[1].i = Read64(p + 1 * 8);
|
||||
x[0].f = Cmpd(imm, x[0].f, y[0].f);
|
||||
x[1].f = Cmpd(imm, x[1].f, y[1].f);
|
||||
Write64(p + 0 * 8, x[0].i);
|
||||
Write64(p + 1 * 8, x[1].i);
|
||||
} else {
|
||||
float x[4], y[4];
|
||||
memcpy(y, GetModrmRegisterXmmPointerRead16(m, rde), 16);
|
||||
memcpy(x, XmmRexrReg(m, rde), 16);
|
||||
x[0] = Cmps(imm, x[0], y[0]);
|
||||
x[1] = Cmps(imm, x[1], y[1]);
|
||||
x[2] = Cmps(imm, x[2], y[2]);
|
||||
x[3] = Cmps(imm, x[3], y[3]);
|
||||
memcpy(XmmRexrReg(m, rde), x, 16);
|
||||
uint8_t *p;
|
||||
union FloatPun x[4], y[4];
|
||||
p = GetModrmRegisterXmmPointerRead16(m, rde);
|
||||
y[0].i = Read32(p + 0 * 4);
|
||||
y[1].i = Read32(p + 1 * 4);
|
||||
y[2].i = Read32(p + 2 * 4);
|
||||
y[3].i = Read32(p + 3 * 4);
|
||||
p = XmmRexrReg(m, rde);
|
||||
x[0].i = Read32(p + 0 * 4);
|
||||
x[1].i = Read32(p + 1 * 4);
|
||||
x[2].i = Read32(p + 2 * 4);
|
||||
x[3].i = Read32(p + 3 * 4);
|
||||
x[0].f = Cmps(imm, x[0].f, y[0].f);
|
||||
x[1].f = Cmps(imm, x[1].f, y[1].f);
|
||||
x[2].f = Cmps(imm, x[2].f, y[2].f);
|
||||
x[3].f = Cmps(imm, x[3].f, y[3].f);
|
||||
Write32(p + 0 * 4, x[0].i);
|
||||
Write32(p + 1 * 4, x[1].i);
|
||||
Write32(p + 2 * 4, x[2].i);
|
||||
Write32(p + 3 * 4, x[3].i);
|
||||
}
|
||||
}
|
||||
|
||||
|
|
@ -528,66 +604,117 @@ void OpXorpsd(struct Machine *m, uint32_t rde) {
|
|||
}
|
||||
|
||||
void OpHaddpsd(struct Machine *m, uint32_t rde) {
|
||||
uint8_t *p;
|
||||
if (Rep(rde) == 2) {
|
||||
float x[4], y[4], z[4];
|
||||
memcpy(x, XmmRexrReg(m, rde), 16);
|
||||
memcpy(y, GetModrmRegisterXmmPointerRead16(m, rde), 16);
|
||||
z[0] = x[0] + x[1];
|
||||
z[1] = x[2] + x[3];
|
||||
z[2] = y[0] + y[1];
|
||||
z[3] = y[2] + y[3];
|
||||
memcpy(XmmRexrReg(m, rde), x, 16);
|
||||
union FloatPun x[4], y[4], z[4];
|
||||
p = GetModrmRegisterXmmPointerRead16(m, rde);
|
||||
y[0].i = Read32(p + 0 * 4);
|
||||
y[1].i = Read32(p + 1 * 4);
|
||||
y[2].i = Read32(p + 2 * 4);
|
||||
y[3].i = Read32(p + 3 * 4);
|
||||
p = XmmRexrReg(m, rde);
|
||||
x[0].i = Read32(p + 0 * 4);
|
||||
x[1].i = Read32(p + 1 * 4);
|
||||
x[2].i = Read32(p + 2 * 4);
|
||||
x[3].i = Read32(p + 3 * 4);
|
||||
z[0].f = x[0].f + x[1].f;
|
||||
z[1].f = x[2].f + x[3].f;
|
||||
z[2].f = y[0].f + y[1].f;
|
||||
z[3].f = y[2].f + y[3].f;
|
||||
Write32(p + 0 * 4, z[0].i);
|
||||
Write32(p + 1 * 4, z[1].i);
|
||||
Write32(p + 2 * 4, z[2].i);
|
||||
Write32(p + 3 * 4, z[3].i);
|
||||
} else if (Osz(rde)) {
|
||||
double x[2], y[2], z[2];
|
||||
memcpy(x, XmmRexrReg(m, rde), 16);
|
||||
memcpy(y, GetModrmRegisterXmmPointerRead16(m, rde), 16);
|
||||
z[0] = x[0] + x[1];
|
||||
z[1] = y[0] + y[1];
|
||||
memcpy(XmmRexrReg(m, rde), z, 16);
|
||||
union DoublePun x[2], y[2], z[2];
|
||||
p = GetModrmRegisterXmmPointerRead16(m, rde);
|
||||
y[0].i = Read64(p + 0 * 8);
|
||||
y[1].i = Read64(p + 1 * 8);
|
||||
p = XmmRexrReg(m, rde);
|
||||
x[0].i = Read64(p + 0 * 8);
|
||||
x[1].i = Read64(p + 1 * 8);
|
||||
z[0].f = x[0].f + x[1].f;
|
||||
z[1].f = y[0].f + y[1].f;
|
||||
Write64(p + 0 * 8, z[0].i);
|
||||
Write64(p + 1 * 8, z[1].i);
|
||||
} else {
|
||||
OpUd(m, rde);
|
||||
}
|
||||
}
|
||||
|
||||
void OpHsubpsd(struct Machine *m, uint32_t rde) {
|
||||
uint8_t *p;
|
||||
if (Rep(rde) == 2) {
|
||||
float x[4], y[4], z[4];
|
||||
memcpy(x, XmmRexrReg(m, rde), 16);
|
||||
memcpy(y, GetModrmRegisterXmmPointerRead16(m, rde), 16);
|
||||
z[0] = x[0] - x[1];
|
||||
z[1] = x[2] - x[3];
|
||||
z[2] = y[0] - y[1];
|
||||
z[3] = y[2] - y[3];
|
||||
memcpy(XmmRexrReg(m, rde), x, 16);
|
||||
union FloatPun x[4], y[4], z[4];
|
||||
p = GetModrmRegisterXmmPointerRead16(m, rde);
|
||||
y[0].i = Read32(p + 0 * 4);
|
||||
y[1].i = Read32(p + 1 * 4);
|
||||
y[2].i = Read32(p + 2 * 4);
|
||||
y[3].i = Read32(p + 3 * 4);
|
||||
p = XmmRexrReg(m, rde);
|
||||
x[0].i = Read32(p + 0 * 4);
|
||||
x[1].i = Read32(p + 1 * 4);
|
||||
x[2].i = Read32(p + 2 * 4);
|
||||
x[3].i = Read32(p + 3 * 4);
|
||||
z[0].f = x[0].f - x[1].f;
|
||||
z[1].f = x[2].f - x[3].f;
|
||||
z[2].f = y[0].f - y[1].f;
|
||||
z[3].f = y[2].f - y[3].f;
|
||||
Write32(p + 0 * 4, z[0].i);
|
||||
Write32(p + 1 * 4, z[1].i);
|
||||
Write32(p + 2 * 4, z[2].i);
|
||||
Write32(p + 3 * 4, z[3].i);
|
||||
} else if (Osz(rde)) {
|
||||
double x[2], y[2], z[2];
|
||||
memcpy(x, XmmRexrReg(m, rde), 16);
|
||||
memcpy(y, GetModrmRegisterXmmPointerRead16(m, rde), 16);
|
||||
z[0] = x[0] - x[1];
|
||||
z[1] = y[0] - y[1];
|
||||
memcpy(XmmRexrReg(m, rde), z, 16);
|
||||
union DoublePun x[2], y[2], z[2];
|
||||
p = GetModrmRegisterXmmPointerRead16(m, rde);
|
||||
y[0].i = Read64(p + 0 * 8);
|
||||
y[1].i = Read64(p + 1 * 8);
|
||||
p = XmmRexrReg(m, rde);
|
||||
x[0].i = Read64(p + 0 * 8);
|
||||
x[1].i = Read64(p + 1 * 8);
|
||||
z[0].f = x[0].f - x[1].f;
|
||||
z[1].f = y[0].f - y[1].f;
|
||||
Write64(p + 0 * 8, z[0].i);
|
||||
Write64(p + 1 * 8, z[1].i);
|
||||
} else {
|
||||
OpUd(m, rde);
|
||||
}
|
||||
}
|
||||
|
||||
void OpAddsubpsd(struct Machine *m, uint32_t rde) {
|
||||
uint8_t *p;
|
||||
if (Rep(rde) == 2) {
|
||||
float x[4], y[4], z[4];
|
||||
memcpy(x, XmmRexrReg(m, rde), 16);
|
||||
memcpy(y, GetModrmRegisterXmmPointerRead16(m, rde), 16);
|
||||
z[0] = x[0] - y[0];
|
||||
z[1] = x[1] + y[1];
|
||||
z[2] = x[2] - y[2];
|
||||
z[3] = x[3] + y[3];
|
||||
memcpy(XmmRexrReg(m, rde), x, 16);
|
||||
union FloatPun x[4], y[4], z[4];
|
||||
p = GetModrmRegisterXmmPointerRead16(m, rde);
|
||||
y[0].i = Read32(p + 0 * 4);
|
||||
y[1].i = Read32(p + 1 * 4);
|
||||
y[2].i = Read32(p + 2 * 4);
|
||||
y[3].i = Read32(p + 3 * 4);
|
||||
p = XmmRexrReg(m, rde);
|
||||
x[0].i = Read32(p + 0 * 4);
|
||||
x[1].i = Read32(p + 1 * 4);
|
||||
x[2].i = Read32(p + 2 * 4);
|
||||
x[3].i = Read32(p + 3 * 4);
|
||||
z[0].f = x[0].f - y[0].f;
|
||||
z[1].f = x[1].f + y[1].f;
|
||||
z[2].f = x[2].f - y[2].f;
|
||||
z[3].f = x[3].f + y[3].f;
|
||||
Write32(p + 0 * 4, z[0].i);
|
||||
Write32(p + 1 * 4, z[1].i);
|
||||
Write32(p + 2 * 4, z[2].i);
|
||||
Write32(p + 3 * 4, z[3].i);
|
||||
} else if (Osz(rde)) {
|
||||
double x[2], y[2], z[2];
|
||||
memcpy(x, XmmRexrReg(m, rde), 16);
|
||||
memcpy(y, GetModrmRegisterXmmPointerRead16(m, rde), 16);
|
||||
z[0] = x[0] - y[0];
|
||||
z[1] = x[1] + y[1];
|
||||
memcpy(XmmRexrReg(m, rde), z, 16);
|
||||
union DoublePun x[2], y[2], z[2];
|
||||
p = GetModrmRegisterXmmPointerRead16(m, rde);
|
||||
y[0].i = Read64(p + 0 * 8);
|
||||
y[1].i = Read64(p + 1 * 8);
|
||||
p = XmmRexrReg(m, rde);
|
||||
x[0].i = Read64(p + 0 * 8);
|
||||
x[1].i = Read64(p + 1 * 8);
|
||||
z[0].f = x[0].f - y[0].f;
|
||||
z[1].f = x[1].f + y[1].f;
|
||||
Write64(p + 0 * 8, z[0].i);
|
||||
Write64(p + 1 * 8, z[1].i);
|
||||
} else {
|
||||
OpUd(m, rde);
|
||||
}
|
||||
|
|
|
|||
Loading…
Add table
Add a link
Reference in a new issue