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New skeleton for x86fpu.js

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This commit is contained in:
Jeff Parsons 2015-11-13 18:20:20 -08:00
commit 2b1b62d565
7 changed files with 1440 additions and 167 deletions
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55
modules/pcjs/lib/debugger.js
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@ -534,7 +534,8 @@ if (DEBUGGER) {
Debugger.TYPE_OTHER = 0xF000; // "other" field
/*
* TYPE_SIZE values.
* TYPE_SIZE values. Some definitions use duplicate values when the operands are the
* same size and the Debugger doesn't need to make a distinction.
*/
Debugger.TYPE_NONE = 0x0000; // (all other TYPE fields ignored)
Debugger.TYPE_BYTE = 0x0001; // (b) byte, regardless of operand size
@ -544,18 +545,16 @@ if (DEBUGGER) {
Debugger.TYPE_LONG = 0x0005; // (d) 32-bit value
Debugger.TYPE_SEGP = 0x0006; // (p) 32-bit or 48-bit pointer
Debugger.TYPE_FARP = 0x0007; // (p) 32-bit or 48-bit pointer for JMP/CALL
Debugger.TYPE_2WORD = 0x0008; // (a) two memory operands (BOUND only)
Debugger.TYPE_DESC = 0x0009; // (s) 6 byte pseudo-descriptor
Debugger.TYPE_PREFIX = 0x000A; // (treat similarly to TYPE_NONE)
Debugger.TYPE_ST = 0x000B; // FPU ST
Debugger.TYPE_STREG = 0x000C; // FPU ST register
Debugger.TYPE_SI = 0x000D; // FPU SI (short-integer; 32-bit)
Debugger.TYPE_SR = 0x000D; // FPU SR (short-real; 32-bit)
Debugger.TYPE_LI = 0x000E; // FPU LI (long-integer; 64-bit)
Debugger.TYPE_LR = 0x000E; // FPU LR (long-real; 64-bit)
Debugger.TYPE_TR = 0x000F; // FPU TR (temp-real; 80-bit)
Debugger.TYPE_PD = 0x000F; // FPU PD (packed-decimal, 18 digits; 80-bit)
Debugger.TYPE_ENV = 0x000F; // FPU ENV (environment; 14 bytes)
Debugger.TYPE_PREFIX = 0x0008; // (treat similarly to TYPE_NONE)
Debugger.TYPE_ST = 0x0009; // FPU ST (implicit top)
Debugger.TYPE_STREG = 0x000A; // FPU ST (explicit register)
Debugger.TYPE_SI = 0x000B; // FPU SI (short-integer; 32-bit)
Debugger.TYPE_SR = 0x000B; // FPU SR (short-real; 32-bit)
Debugger.TYPE_LI = 0x000C; // FPU LI (long-integer; 64-bit)
Debugger.TYPE_LR = 0x000C; // FPU LR (long-real; 64-bit)
Debugger.TYPE_TR = 0x000D; // FPU TR (temp-real; 80-zbit)
Debugger.TYPE_PD = 0x000D; // FPU PD (packed-decimal, 18 digits; 80-bit)
Debugger.TYPE_ENV = 0x000E; // FPU ENV (environment; 14 bytes)
Debugger.TYPE_FPU = 0x000F; // FPU SAVE (save/restore; 94 bytes)
/*
@ -816,7 +815,7 @@ if (DEBUGGER) {
/* 0x60 */ [Debugger.INS.PUSHA, Debugger.TYPE_NONE | Debugger.TYPE_80286],
/* 0x61 */ [Debugger.INS.POPA, Debugger.TYPE_NONE | Debugger.TYPE_80286],
/* 0x62 */ [Debugger.INS.BOUND, Debugger.TYPE_REG | Debugger.TYPE_WORD | Debugger.TYPE_IN | Debugger.TYPE_80286, Debugger.TYPE_MODRM | Debugger.TYPE_2WORD | Debugger.TYPE_IN],
/* 0x62 */ [Debugger.INS.BOUND, Debugger.TYPE_REG | Debugger.TYPE_WORD | Debugger.TYPE_IN | Debugger.TYPE_80286, Debugger.TYPE_MODRM | Debugger.TYPE_WORD | Debugger.TYPE_IN],
/* 0x63 */ [Debugger.INS.ARPL, Debugger.TYPE_MODRM | Debugger.TYPE_SHORT | Debugger.TYPE_OUT, Debugger.TYPE_REG | Debugger.TYPE_SHORT | Debugger.TYPE_IN],
/* 0x64 */ [Debugger.INS.FS, Debugger.TYPE_PREFIX | Debugger.TYPE_80386],
/* 0x65 */ [Debugger.INS.GS, Debugger.TYPE_PREFIX | Debugger.TYPE_80386],
@ -1067,6 +1066,9 @@ if (DEBUGGER) {
0xBF: [Debugger.INS.MOVSX, Debugger.TYPE_REG | Debugger.TYPE_LONG | Debugger.TYPE_OUT | Debugger.TYPE_80386, Debugger.TYPE_MODRM | Debugger.TYPE_SHORT | Debugger.TYPE_IN]
};
/*
* Be sure to keep the following table in sync with X86FPU.aaOps
*/
Debugger.aaaOpFPUDescs = {
0xD8: {
0x00: [Debugger.FINS.FADD, Debugger.TYPE_MODRM | Debugger.TYPE_SR | Debugger.TYPE_IN],
@ -1097,7 +1099,7 @@ if (DEBUGGER) {
0x30: [Debugger.FINS.FLD, Debugger.TYPE_IMPREG | Debugger.TYPE_STREG | Debugger.TYPE_OUT],
0x31: [Debugger.FINS.FXCH, Debugger.TYPE_IMPREG | Debugger.TYPE_STREG | Debugger.TYPE_OUT],
0x32: [Debugger.FINS.FNOP],
0x33: [Debugger.FINS.FSTP, Debugger.TYPE_IMPREG | Debugger.TYPE_STREG | Debugger.TYPE_OUT],
0x33: [Debugger.FINS.FSTP, Debugger.TYPE_IMPREG | Debugger.TYPE_STREG | Debugger.TYPE_OUT],
0x40: [Debugger.FINS.FCHS],
0x41: [Debugger.FINS.FABS],
0x44: [Debugger.FINS.FTST],
@ -1144,14 +1146,14 @@ if (DEBUGGER) {
0x43: [Debugger.FINS.FINIT]
},
0xDC: {
0x00: [Debugger.FINS.FADD, Debugger.TYPE_MODRM | Debugger.TYPE_LR | Debugger.TYPE_IN],
0x01: [Debugger.FINS.FMUL, Debugger.TYPE_MODRM | Debugger.TYPE_LR | Debugger.TYPE_IN],
0x02: [Debugger.FINS.FCOM, Debugger.TYPE_MODRM | Debugger.TYPE_LR | Debugger.TYPE_IN],
0x03: [Debugger.FINS.FCOMP, Debugger.TYPE_MODRM | Debugger.TYPE_LR | Debugger.TYPE_IN],
0x04: [Debugger.FINS.FSUB, Debugger.TYPE_MODRM | Debugger.TYPE_LR | Debugger.TYPE_IN],
0x05: [Debugger.FINS.FSUBR, Debugger.TYPE_MODRM | Debugger.TYPE_LR | Debugger.TYPE_IN],
0x06: [Debugger.FINS.FDIV, Debugger.TYPE_MODRM | Debugger.TYPE_LR | Debugger.TYPE_IN],
0x07: [Debugger.FINS.FDIVR, Debugger.TYPE_MODRM | Debugger.TYPE_LR | Debugger.TYPE_IN],
0x00: [Debugger.FINS.FADD, Debugger.TYPE_MODRM | Debugger.TYPE_LR | Debugger.TYPE_IN],
0x01: [Debugger.FINS.FMUL, Debugger.TYPE_MODRM | Debugger.TYPE_LR | Debugger.TYPE_IN],
0x02: [Debugger.FINS.FCOM, Debugger.TYPE_MODRM | Debugger.TYPE_LR | Debugger.TYPE_IN],
0x03: [Debugger.FINS.FCOMP, Debugger.TYPE_MODRM | Debugger.TYPE_LR | Debugger.TYPE_IN],
0x04: [Debugger.FINS.FSUB, Debugger.TYPE_MODRM | Debugger.TYPE_LR | Debugger.TYPE_IN],
0x05: [Debugger.FINS.FSUBR, Debugger.TYPE_MODRM | Debugger.TYPE_LR | Debugger.TYPE_IN],
0x06: [Debugger.FINS.FDIV, Debugger.TYPE_MODRM | Debugger.TYPE_LR | Debugger.TYPE_IN],
0x07: [Debugger.FINS.FDIVR, Debugger.TYPE_MODRM | Debugger.TYPE_LR | Debugger.TYPE_IN],
0x30: [Debugger.FINS.FADD, Debugger.TYPE_IMPREG | Debugger.TYPE_STREG | Debugger.TYPE_OUT, Debugger.TYPE_IMPREG | Debugger.TYPE_ST | Debugger.TYPE_IN],
0x31: [Debugger.FINS.FMUL, Debugger.TYPE_IMPREG | Debugger.TYPE_STREG | Debugger.TYPE_OUT, Debugger.TYPE_IMPREG | Debugger.TYPE_ST | Debugger.TYPE_IN],
0x32: [Debugger.FINS.FCOM, Debugger.TYPE_IMPREG | Debugger.TYPE_STREG | Debugger.TYPE_IN],
@ -4902,14 +4904,14 @@ if (DEBUGGER) {
var r_m = (bModRM & 0x7);
/*
* Similar to how fnFPU() decodes FPU instructions, we now combine mod and reg into
* one decodable value: put mod in the high nibble and reg in the low nibble, after first
* Similar to how fnFPU() decodes FPU instructions, we combine mod and reg into one
* decodable value: put mod in the high nibble and reg in the low nibble, after first
* collapsing all mod values < 3 to zero.
*/
var modReg = (mod < 3? 0 : 0x30) + reg;
/*
* Use values >= 0x40 to indicate mod == 0x3, with reg in the high nibble, and r_m in the low.
* Use values >= 0x40 to indicate mod == 0x3, with reg in the high nibble and r_m in the low.
*/
if ((bOpcode == X86.OPCODE.ESC1 || bOpcode == X86.OPCODE.ESC3) && modReg >= 0x34) {
modReg = (reg << 4) | r_m;
@ -4949,7 +4951,6 @@ if (DEBUGGER) {
sOperand = str.toHex((this.getByte(dbgAddr, 1) << 24) >> 24, dbgAddr.fData32? 8: 4);
break;
case Debugger.TYPE_WORD:
case Debugger.TYPE_2WORD:
if (dbgAddr.fData32) {
sOperand = str.toHex(this.getLong(dbgAddr, 4));
break;