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Make terminal ui binaries work well everywhere
Here's some screenshots of an emulator tui program that was compiled on Linux, then scp'd it to Windows, Mac, and FreeBSD. https://justine.storage.googleapis.com/blinkenlights-cmdexe.png https://justine.storage.googleapis.com/blinkenlights-imac.png https://justine.storage.googleapis.com/blinkenlights-freebsd.png https://justine.storage.googleapis.com/blinkenlights-lisp.png How is this even possible that we have a nontrivial ui binary that just works on Mac, Windows, Linux, and BSD? Surely a first ever achievement. Fixed many bugs. Bootstrapped John McCarthy's metacircular evaluator on bare metal in half the size of Altair BASIC (about 2.5kb) and ran it in emulator for fun and profit.
This commit is contained in:
Justine Tunney
parent
680daf1210
commit
9e3e985ae5
276 changed files with 7026 additions and 3790 deletions
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@ -5,10 +5,6 @@
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#include "tool/build/lib/fds.h"
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#include "tool/build/lib/pml4t.h"
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#define kXmmIntegral 0
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#define kXmmDouble 1
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#define kXmmFloat 2
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#define kMachineHalt -1
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#define kMachineDecodeError -2
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#define kMachineUndefinedInstruction -3
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@ -28,7 +24,7 @@ struct Machine {
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uint8_t cs[8];
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uint8_t ss[8];
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uint64_t codevirt;
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uint8_t *codereal;
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uint8_t *codehost;
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uint32_t mode;
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uint32_t flags;
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uint32_t tlbindex;
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@ -59,13 +55,15 @@ struct Machine {
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uint8_t r15[8];
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};
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};
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uint8_t *real;
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uint64_t realsize;
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uint64_t *cr3;
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struct TlbEntry {
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int64_t v;
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void *r;
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struct MachineTlb {
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int64_t virt;
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uint8_t *host;
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} tlb[16];
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struct MachineReal {
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size_t i, n;
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uint8_t *p;
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} real;
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uint64_t cr3;
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uint8_t xmm[16][16] aligned(16);
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uint8_t es[8];
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uint8_t ds[8];
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@ -76,34 +74,34 @@ struct Machine {
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union {
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uint32_t cw;
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struct {
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unsigned im : 1; /* invalid operation mask */
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unsigned dm : 1; /* denormal operand mask */
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unsigned zm : 1; /* zero divide mask */
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unsigned om : 1; /* overflow mask */
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unsigned um : 1; /* underflow mask */
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unsigned pm : 1; /* precision mask */
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unsigned _p1 : 2; /* reserved */
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unsigned pc : 2; /* precision: 32,∅,64,80 */
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unsigned rc : 2; /* rounding: even,→-∞,→+∞,→0 */
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unsigned im : 1; // invalid operation mask
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unsigned dm : 1; // denormal operand mask
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unsigned zm : 1; // zero divide mask
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unsigned om : 1; // overflow mask
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unsigned um : 1; // underflow mask
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unsigned pm : 1; // precision mask
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unsigned _p1 : 2; // reserved
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unsigned pc : 2; // precision: 32,∅,64,80
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unsigned rc : 2; // rounding: even,→-∞,→+∞,→0
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};
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};
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union {
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uint32_t sw;
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struct {
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unsigned ie : 1; /* invalid operation */
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unsigned de : 1; /* denormalized operand */
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unsigned ze : 1; /* zero divide */
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unsigned oe : 1; /* overflow */
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unsigned ue : 1; /* underflow */
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unsigned pe : 1; /* precision */
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unsigned sf : 1; /* stack fault */
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unsigned es : 1; /* exception summary status */
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unsigned c0 : 1; /* condition 0 */
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unsigned c1 : 1; /* condition 1 */
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unsigned c2 : 1; /* condition 2 */
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unsigned sp : 3; /* top stack */
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unsigned c3 : 1; /* condition 3 */
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unsigned bf : 1; /* busy flag */
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unsigned ie : 1; // invalid operation
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unsigned de : 1; // denormalized operand
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unsigned ze : 1; // zero divide
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unsigned oe : 1; // overflow
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unsigned ue : 1; // underflow
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unsigned pe : 1; // precision
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unsigned sf : 1; // stack fault
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unsigned es : 1; // exception summary status
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unsigned c0 : 1; // condition 0
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unsigned c1 : 1; // condition 1
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unsigned c2 : 1; // condition 2
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unsigned sp : 3; // top stack
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unsigned c3 : 1; // condition 3
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unsigned bf : 1; // busy flag
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};
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};
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int tw;
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@ -111,28 +109,33 @@ struct Machine {
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int64_t ip;
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int64_t dp;
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} fpu;
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struct {
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struct MachineSse {
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union {
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uint32_t mxcsr;
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struct {
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unsigned ie : 1; /* invalid operation flag */
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unsigned de : 1; /* denormal flag */
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unsigned ze : 1; /* divide by zero flag */
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unsigned oe : 1; /* overflow flag */
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unsigned ue : 1; /* underflow flag */
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unsigned pe : 1; /* precision flag */
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unsigned daz : 1; /* denormals are zeros */
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unsigned im : 1; /* invalid operation mask */
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unsigned dm : 1; /* denormal mask */
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unsigned zm : 1; /* divide by zero mask */
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unsigned om : 1; /* overflow mask */
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unsigned um : 1; /* underflow mask */
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unsigned pm : 1; /* precision mask */
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unsigned rc : 2; /* rounding control */
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unsigned ftz : 1; /* flush to zero */
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unsigned ie : 1; // invalid operation flag
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unsigned de : 1; // denormal flag
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unsigned ze : 1; // divide by zero flag
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unsigned oe : 1; // overflow flag
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unsigned ue : 1; // underflow flag
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unsigned pe : 1; // precision flag
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unsigned daz : 1; // denormals are zeros
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unsigned im : 1; // invalid operation mask
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unsigned dm : 1; // denormal mask
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unsigned zm : 1; // divide by zero mask
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unsigned om : 1; // overflow mask
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unsigned um : 1; // underflow mask
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unsigned pm : 1; // precision mask
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unsigned rc : 2; // rounding control
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unsigned ftz : 1; // flush to zero
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};
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};
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} sse;
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struct MachineRealFree {
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uint64_t i;
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uint64_t n;
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struct MachineRealFree *next;
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} * realfree;
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struct FreeList {
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uint32_t i;
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void *p[6];
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@ -141,18 +144,23 @@ struct Machine {
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int64_t bofram[2];
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jmp_buf onhalt;
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int64_t faultaddr;
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uint8_t stash[4096];
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uint8_t xmmtype[2][8];
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uint8_t icache[4096 / 4][40] aligned(16);
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struct MachineFds fds;
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uint8_t stash[4096];
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uint8_t icache[1024][40];
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} aligned(64);
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struct Machine *NewMachine(void) nodiscard;
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void FreeMachine(struct Machine *);
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void ResetMem(struct Machine *);
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void ResetCpu(struct Machine *);
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void ResetTlb(struct Machine *);
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void LoadInstruction(struct Machine *);
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void ExecuteInstruction(struct Machine *);
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struct Machine *NewMachine(void) nodiscard;
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void LoadArgv(struct Machine *, const char *, char **, char **);
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void InitMachine(struct Machine *);
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long AllocateLinearPage(struct Machine *);
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int ReserveVirtual(struct Machine *, int64_t, size_t);
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char *FormatPml4t(struct Machine *) nodiscard;
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int64_t FindVirtual(struct Machine *, int64_t, size_t);
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int FreeVirtual(struct Machine *, int64_t, size_t);
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COSMOPOLITAN_C_END_
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#endif /* !(__ASSEMBLER__ + __LINKER__ + 0) */
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