vkdoom_m/src/zscript/vmdisasm.cpp
Randy Heit 38d7b7d203 - Fixed errors and warnings when compiling with GCC. (Unfortunately, the VC++ debug builds
become ungodly slow when using mods with complex DECORATE. The GCC debug builds run just
  fine, however. Hopefully this is something that can be fixed later with an assembly-optimized
  version of the main VM loop, because I don't relish the thought of being stuck with GDB
  for debugging.)
- Fixed: The ACS_Named* action specials were erroneously defined as taking strings instead of
  names.
- Fixed: Copy-paste error caused FxMultiNameState::Emit to generate code that called
  DecoNameToClass instead of DecoFindMultiNameState.
- Updated FxActionSpecialCall::Emit for named script specials.
- Fixed inverted asserts for FxMinusSign::Emit and FxUnaryNotBitwise::Emit.


SVN r3893 (scripting)
2012-10-18 03:19:27 +00:00

450 lines
13 KiB
C++

#include "vm.h"
#include "c_console.h"
#define LI MODE_AI | MODE_BCJOINT | MODE_BCIMMS
#define LKI MODE_AI | MODE_BCJOINT | MODE_BCKI
#define LKF MODE_AF | MODE_BCJOINT | MODE_BCKF
#define LKS MODE_AS | MODE_BCJOINT | MODE_BCKS
#define LKP MODE_AP | MODE_BCJOINT | MODE_BCKP
#define LFP MODE_AP | MODE_BUNUSED | MODE_CUNUSED
#define RIRPKI MODE_AI | MODE_BP | MODE_CKI
#define RIRPRI MODE_AI | MODE_BP | MODE_CI
#define RFRPKI MODE_AF | MODE_BP | MODE_CKI
#define RFRPRI MODE_AF | MODE_BP | MODE_CI
#define RSRPKI MODE_AS | MODE_BP | MODE_CKI
#define RSRPRI MODE_AS | MODE_BP | MODE_CI
#define RPRPKI MODE_AP | MODE_BP | MODE_CKI
#define RPRPRI MODE_AP | MODE_BP | MODE_CI
#define RVRPKI MODE_AV | MODE_BP | MODE_CKI
#define RVRPRI MODE_AV | MODE_BP | MODE_CI
#define RIRPI8 MODE_AI | MODE_BP | MODE_CIMMZ
#define RPRIKI MODE_AP | MODE_BI | MODE_CKI
#define RPRIRI MODE_AP | MODE_BI | MODE_CI
#define RPRFKI MODE_AP | MODE_BF | MODE_CKI
#define RPRFRI MODE_AP | MODE_BF | MODE_CI
#define RPRSKI MODE_AP | MODE_BS | MODE_CKI
#define RPRSRI MODE_AP | MODE_BS | MODE_CI
#define RPRPKI MODE_AP | MODE_BP | MODE_CKI
#define RPRPRI MODE_AP | MODE_BP | MODE_CI
#define RPRVKI MODE_AP | MODE_BV | MODE_CKI
#define RPRVRI MODE_AP | MODE_BV | MODE_CI
#define RPRII8 MODE_AP | MODE_BI | MODE_CIMMZ
#define RIRI MODE_AI | MODE_BI | MODE_CUNUSED
#define RFRF MODE_AF | MODE_BF | MODE_CUNUSED
#define RSRS MODE_AS | MODE_BS | MODE_CUNUSED
#define RPRP MODE_AP | MODE_BP | MODE_CUNUSED
#define RXRXI8 MODE_AX | MODE_BX | MODE_CIMMZ
#define RPRPRP MODE_AP | MODE_BP | MODE_CP
#define RPRPKP MODE_AP | MODE_BP | MODE_CKP
#define RII16 MODE_AI | MODE_BCJOINT | MODE_BCIMMS
#define I24 MODE_ABCJOINT
#define I8 MODE_AIMMZ | MODE_BUNUSED | MODE_CUNUSED
#define __BCP MODE_AUNUSED | MODE_BCJOINT | MODE_BCPARAM
#define RPI8 MODE_AP | MODE_BIMMZ | MODE_CUNUSED
#define KPI8 MODE_AKP | MODE_BIMMZ | MODE_CUNUSED
#define RPI8I8 MODE_AP | MODE_BIMMZ | MODE_CIMMZ
#define KPI8I8 MODE_AKP | MODE_BIMMZ | MODE_CIMMZ
#define I8BCP MODE_AIMMZ | MODE_BCJOINT | MODE_BCPARAM
#define THROW MODE_AIMMZ | MODE_BCTHROW
#define CATCH MODE_AIMMZ | MODE_BCCATCH
#define CAST MODE_AX | MODE_BX | MODE_CIMMZ | MODE_BCCAST
#define RSRSRS MODE_AS | MODE_BS | MODE_CS
#define RIRS MODE_AI | MODE_BS | MODE_CUNUSED
#define I8RXRX MODE_AIMMZ | MODE_BX | MODE_CX
#define RIRIRI MODE_AI | MODE_BI | MODE_CI
#define RIRII8 MODE_AI | MODE_BI | MODE_CIMMZ
#define RIRIKI MODE_AI | MODE_BI | MODE_CKI
#define RIKIRI MODE_AI | MODE_BKI | MODE_CI
#define RIKII8 MODE_AI | MODE_BKI | MODE_CIMMZ
#define RIRIIs MODE_AI | MODE_BI | MODE_CIMMS
#define RIRI MODE_AI | MODE_BI | MODE_CUNUSED
#define I8RIRI MODE_AIMMZ | MODE_BI | MODE_CI
#define I8RIKI MODE_AIMMZ | MODE_BI | MODE_CKI
#define I8KIRI MODE_AIMMZ | MODE_BKI | MODE_CI
#define RFRFRF MODE_AF | MODE_BF | MODE_CF
#define RFRFKF MODE_AF | MODE_BF | MODE_CKF
#define RFKFRF MODE_AF | MODE_BKF | MODE_CF
#define I8RFRF MODE_AIMMZ | MODE_BF | MODE_CF
#define I8RFKF MODE_AIMMZ | MODE_BF | MODE_CKF
#define I8KFRF MODE_AIMMZ | MODE_BKF | MODE_CF
#define RFRFI8 MODE_AF | MODE_BF | MODE_CIMMZ
#define RVRV MODE_AV | MODE_BV | MODE_CUNUSED
#define RVRVRV MODE_AV | MODE_BV | MODE_CV
#define RVRVKV MODE_AV | MODE_BV | MODE_CKV
#define RVKVRV MODE_AV | MODE_BKV | MODE_CV
#define RFRV MODE_AF | MODE_BV | MODE_CUNUSED
#define I8RVRV MODE_AIMMZ | MODE_BV | MODE_CV
#define I8RVKV MODE_AIMMZ | MODE_BV | MODE_CKV
#define RPRPRI MODE_AP | MODE_BP | MODE_CI
#define RPRPKI MODE_AP | MODE_BP | MODE_CKI
#define RIRPRP MODE_AI | MODE_BP | MODE_CP
#define I8RPRP MODE_AIMMZ | MODE_BP | MODE_CP
#define I8RPKP MODE_AIMMZ | MODE_BP | MODE_CKP
const VMOpInfo OpInfo[NUM_OPS] =
{
#define xx(op, name, mode) { #name, mode }
#include "vmops.h"
};
static int print_reg(FILE *out, int col, int arg, int mode, int immshift, const VMScriptFunction *func);
static int printf_wrapper(FILE *f, const char *fmt, ...)
{
va_list argptr;
int count;
va_start(argptr, fmt);
if (f == NULL)
{
count = VPrintf(PRINT_HIGH, fmt, argptr);
}
else
{
count = vfprintf(f, fmt, argptr);
}
va_end(argptr);
return count;
}
void VMDumpConstants(FILE *out, const VMScriptFunction *func)
{
char tmp[21];
int i, j, k, kk;
if (func->KonstD != NULL && func->NumKonstD != 0)
{
printf_wrapper(out, "\nConstant integers:\n");
kk = (func->NumKonstD + 3) / 4;
for (i = 0; i < kk; ++i)
{
for (j = 0, k = i; j < 4 && k < func->NumKonstD; j++, k += kk)
{
mysnprintf(tmp, countof(tmp), "%3d. %d", k, func->KonstD[k]);
printf_wrapper(out, "%-20s", tmp);
}
printf_wrapper(out, "\n");
}
}
if (func->KonstF != NULL && func->NumKonstF != 0)
{
printf_wrapper(out, "\nConstant floats:\n");
kk = (func->NumKonstF + 3) / 4;
for (i = 0; i < kk; ++i)
{
for (j = 0, k = i; j < 4 && k < func->NumKonstF; j++, k += kk)
{
mysnprintf(tmp, countof(tmp), "%3d. %.16f", k, func->KonstF[k]);
printf_wrapper(out, "%-20s", tmp);
}
printf_wrapper(out, "\n");
}
}
if (func->KonstA != NULL && func->NumKonstA != 0)
{
printf_wrapper(out, "\nConstant addresses:\n");
kk = (func->NumKonstA + 3) / 4;
for (i = 0; i < kk; ++i)
{
for (j = 0, k = i; j < 4 && k < func->NumKonstA; j++, k += kk)
{
mysnprintf(tmp, countof(tmp), "%3d. %p:%d", k, func->KonstA[k].v, func->KonstATags()[k]);
printf_wrapper(out, "%-20s", tmp);
}
printf_wrapper(out, "\n");
}
}
if (func->KonstS != NULL && func->NumKonstS != 0)
{
printf_wrapper(out, "\nConstant strings:\n");
for (i = 0; i < func->NumKonstS; ++i)
{
printf_wrapper(out, "%3d. %s\n", i, func->KonstS[i].GetChars());
}
}
}
void VMDisasm(FILE *out, const VMOP *code, int codesize, const VMScriptFunction *func)
{
VMFunction *callfunc;
const char *callname;
const char *name;
int col;
int mode;
int a;
for (int i = 0; i < codesize; ++i)
{
name = OpInfo[code[i].op].Name;
mode = OpInfo[code[i].op].Mode;
a = code[i].a;
// String comparison encodes everything in a single instruction.
if (code[i].op == OP_CMPS)
{
switch (a & CMP_METHOD_MASK)
{
case CMP_EQ: name = "eq"; break;
case CMP_LT: name = "lt"; break;
case CMP_LE: name = "le"; break;
}
mode = MODE_AIMMZ;
mode |= (a & CMP_BK) ? MODE_BKS : MODE_BS;
mode |= (a & CMP_CK) ? MODE_CKS : MODE_CS;
a &= CMP_CHECK | CMP_APPROX;
}
printf_wrapper(out, "%08x: %02x%02x%02x%02x %-8s", i << 2, code[i].op, code[i].a, code[i].b, code[i].c, name);
col = 0;
switch (code[i].op)
{
case OP_JMP:
case OP_TRY:
col = printf_wrapper(out, "%08x", i + 4 + (code[i].i24 << 2));
break;
case OP_PARAMI:
col = printf_wrapper(out, "%d", code[i].i24);
break;
case OP_CALL_K:
case OP_TAIL_K:
callfunc = (VMFunction *)func->KonstA[code[i].a].o;
callname = callfunc->Name != NAME_None ? callfunc->Name : "[anonfunc]";
col = printf_wrapper(out, "%.23s,%d", callname, code[i].b);
if (code[i].op == OP_CALL_K)
{
col += printf_wrapper(out, ",%d", code[i].c);
}
break;
case OP_RET:
if (code[i].b != REGT_NIL)
{
if ((code[i].b & REGT_FINAL) && a == 0)
{
col = print_reg(out, 0, code[i].i16u, MODE_PARAM, 16, func);
}
else
{
col = print_reg(out, 0, a, (mode & MODE_ATYPE) >> MODE_ASHIFT, 24, func);
col += print_reg(out, col, code[i].i16u, MODE_PARAM, 16, func);
if (code[i].b & REGT_FINAL)
{
col += printf_wrapper(out, " [final]");
}
}
}
break;
default:
if ((mode & MODE_BCTYPE) == MODE_BCCAST)
{
switch (code[i].c)
{
case CAST_I2F:
mode = MODE_AF | MODE_BI | MODE_CUNUSED;
break;
case CAST_I2S:
mode = MODE_AS | MODE_BI | MODE_CUNUSED;
break;
case CAST_F2I:
mode = MODE_AI | MODE_BF | MODE_CUNUSED;
break;
case CAST_F2S:
mode = MODE_AS | MODE_BF | MODE_CUNUSED;
break;
case CAST_P2S:
mode = MODE_AS | MODE_BP | MODE_CUNUSED;
break;
case CAST_S2I:
mode = MODE_AI | MODE_BS | MODE_CUNUSED;
break;
case CAST_S2F:
mode = MODE_AF | MODE_BS | MODE_CUNUSED;
break;
default:
mode = MODE_AX | MODE_BX | MODE_CIMMZ;
break;
}
}
col = print_reg(out, 0, a, (mode & MODE_ATYPE) >> MODE_ASHIFT, 24, func);
if ((mode & MODE_BCTYPE) == MODE_BCTHROW)
{
mode = (code[i].a == 0) ? (MODE_BP | MODE_CUNUSED) : (MODE_BKP | MODE_CUNUSED);
}
else if ((mode & MODE_BCTYPE) == MODE_BCCATCH)
{
switch (code[i].a)
{
case 0:
mode = MODE_BUNUSED | MODE_CUNUSED;
break;
case 1:
mode = MODE_BUNUSED | MODE_CP;
break;
case 2:
mode = MODE_BP | MODE_CP;
break;
case 3:
mode = MODE_BKP | MODE_CP;
break;
default:
mode = MODE_BIMMZ | MODE_CIMMZ;
break;
}
}
if ((mode & (MODE_BTYPE | MODE_CTYPE)) == MODE_BCJOINT)
{
col += print_reg(out, col, code[i].i16u, (mode & MODE_BCTYPE) >> MODE_BCSHIFT, 16, func);
}
else
{
col += print_reg(out, col, code[i].b, (mode & MODE_BTYPE) >> MODE_BSHIFT, 24, func);
col += print_reg(out, col, code[i].c, (mode & MODE_CTYPE) >> MODE_CSHIFT, 24, func);
}
break;
}
if (col > 30)
{
col = 30;
}
printf_wrapper(out, "%*c", 30 - col, ';');
if (code[i].op == OP_JMP || code[i].op == OP_TRY || code[i].op == OP_PARAMI)
{
printf_wrapper(out, "%d\n", code[i].i24);
}
else
{
printf_wrapper(out, "%d,%d,%d", code[i].a, code[i].b, code[i].c);
if (code[i].op == OP_CALL_K || code[i].op == OP_TAIL_K)
{
printf_wrapper(out, " [%p]\n", callfunc);
}
else
{
printf_wrapper(out, "\n");
}
}
}
}
static int print_reg(FILE *out, int col, int arg, int mode, int immshift, const VMScriptFunction *func)
{
if (mode == MODE_UNUSED)
{
return 0;
}
if (col > 0)
{
col = printf_wrapper(out, ",");
}
switch(mode)
{
case MODE_I:
return col+printf_wrapper(out, "d%d", arg);
case MODE_F:
return col+printf_wrapper(out, "f%d", arg);
case MODE_S:
return col+printf_wrapper(out, "s%d", arg);
case MODE_P:
return col+printf_wrapper(out, "a%d", arg);
case MODE_V:
return col+printf_wrapper(out, "v%d", arg);
case MODE_KI:
if (func != NULL)
{
return col+printf_wrapper(out, "%d", func->KonstD[arg]);
}
return printf_wrapper(out, "kd%d", arg);
case MODE_KF:
if (func != NULL)
{
return col+printf_wrapper(out, "%f", func->KonstF[arg]);
}
return col+printf_wrapper(out, "kf%d", arg);
case MODE_KS:
if (func != NULL)
{
return col+printf_wrapper(out, "\"%.27s\"", func->KonstS[arg].GetChars());
}
return col+printf_wrapper(out, "ks%d", arg);
case MODE_KP:
if (func != NULL)
{
return col+printf_wrapper(out, "%p", func->KonstA[arg]);
}
return col+printf_wrapper(out, "ka%d", arg);
case MODE_KV:
if (func != NULL)
{
return col+printf_wrapper(out, "(%f,%f,%f)", func->KonstF[arg], func->KonstF[arg+1], func->KonstF[arg+2]);
}
return col+printf_wrapper(out, "kv%d", arg);
case MODE_IMMS:
return col+printf_wrapper(out, "%d", (arg << immshift) >> immshift);
case MODE_IMMZ:
return col+printf_wrapper(out, "%d", arg);
case MODE_PARAM:
{
int regtype, regnum;
#ifdef __BIG_ENDIAN__
regtype = (arg >> 8) & 255;
regnum = arg & 255;
#else
regtype = arg & 255;
regnum = (arg >> 8) & 255;
#endif
switch (regtype & (REGT_TYPE | REGT_KONST | REGT_MULTIREG))
{
case REGT_INT:
return col+printf_wrapper(out, "d%d", regnum);
case REGT_FLOAT:
return col+printf_wrapper(out, "f%d", regnum);
case REGT_STRING:
return col+printf_wrapper(out, "s%d", regnum);
case REGT_POINTER:
return col+printf_wrapper(out, "a%d", regnum);
case REGT_FLOAT | REGT_MULTIREG:
return col+printf_wrapper(out, "v%d", regnum);
case REGT_INT | REGT_KONST:
return col+print_reg(out, 0, regnum, MODE_KI, 0, func);
case REGT_FLOAT | REGT_KONST:
return col+print_reg(out, 0, regnum, MODE_KF, 0, func);
case REGT_STRING | REGT_KONST:
return col+print_reg(out, 0, regnum, MODE_KS, 0, func);
case REGT_POINTER | REGT_KONST:
return col+print_reg(out, 0, regnum, MODE_KP, 0, func);
case REGT_FLOAT | REGT_MULTIREG | REGT_KONST:
return col+print_reg(out, 0, regnum, MODE_KV, 0, func);
default:
if (regtype == REGT_NIL)
{
return col+printf_wrapper(out, "nil");
}
return col+printf_wrapper(out, "param[t=%d,%c,%c,n=%d]",
regtype & REGT_TYPE,
regtype & REGT_KONST ? 'k' : 'r',
regtype & REGT_MULTIREG ? 'm' : 's',
regnum);
}
}
default:
return col+printf_wrapper(out, "$%d", arg);
}
return col;
}