151 lines
4.2 KiB
C
151 lines
4.2 KiB
C
#ifndef COSMOPOLITAN_TOOL_BUILD_LIB_MACHINE_H_
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#define COSMOPOLITAN_TOOL_BUILD_LIB_MACHINE_H_
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#include "libc/elf/struct/ehdr.h"
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#include "libc/runtime/runtime.h"
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#include "third_party/xed/x86.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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#define kMachineSegmentationFault -4
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#define kMachineExit -5
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#define kMachineDivideError -6
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#define kMachineFpuException -7
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#define kMachineProtectionFault -8
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#define kMachineSimdException -9
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#if !(__ASSEMBLER__ + __LINKER__ + 0)
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COSMOPOLITAN_C_START_
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struct Machine {
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struct XedDecodedInst *xedd;
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uint64_t ip;
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uint64_t codevirt;
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uint8_t *codereal;
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uint32_t flags;
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uint32_t stashsize;
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int64_t stashaddr;
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int64_t readaddr;
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int64_t writeaddr;
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uint32_t readsize;
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uint32_t writesize;
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union {
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uint8_t reg[2 * 8][8];
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struct {
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uint8_t ax[8];
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uint8_t cx[8];
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uint8_t dx[8];
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uint8_t bx[8];
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uint8_t sp[8];
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uint8_t bp[8];
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uint8_t si[8];
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uint8_t di[8];
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uint8_t r8[8];
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uint8_t r9[8];
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uint8_t r10[8];
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uint8_t r11[8];
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uint8_t r12[8];
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uint8_t r13[8];
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uint8_t r14[8];
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uint8_t r15[8];
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};
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} aligned(8);
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uint32_t tlbindex;
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struct TlbEntry {
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int64_t v;
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void *r;
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} tlb[4];
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uint8_t *veg[2 * 8];
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uint8_t *beg[2 * 2 * 8];
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struct MachineFpu {
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long double st[8];
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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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};
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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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};
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};
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int tw;
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int op;
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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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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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};
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};
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} sse;
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struct FreeList {
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uint32_t i;
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void *p[6];
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} freelist;
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pml4t_t cr3;
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uint8_t xmm[2][8][16] aligned(16);
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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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struct XedDecodedInst icache[512];
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};
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void ResetCpu(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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COSMOPOLITAN_C_END_
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#endif /* !(__ASSEMBLER__ + __LINKER__ + 0) */
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#endif /* COSMOPOLITAN_TOOL_BUILD_LIB_MACHINE_H_ */
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