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More FPU work

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This commit is contained in:
Jeff Parsons 2015-11-16 17:41:55 -08:00
commit d9e280f279
4 changed files with 638 additions and 180 deletions
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34
modules/pcjs/lib/debugger.js
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@ -432,7 +432,7 @@ if (DEBUGGER) {
"FINCSTP","FDECSTP","FFREE", "FNOP", "FWAIT"
];
Debugger.FPU_TAGS = ["VALID", "ZERO", "SPECIAL", "EMPTY"];
Debugger.FPU_TAGS = ["VALID", "ZERO ", "SPEC ", "EMPTY"];
Debugger.CPU_8086 = 0;
Debugger.CPU_80186 = 1;
@ -554,10 +554,10 @@ if (DEBUGGER) {
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)
Debugger.TYPE_TR = 0x000D; // FPU TR (temp-real; 80-bit)
Debugger.TYPE_PD = 0x000E; // FPU PD (packed-decimal, 18 digits; 80-bit)
Debugger.TYPE_ENV = 0x000F; // FPU ENV (environment; 14 bytes in real-mode, 28 bytes in protected-mode)
Debugger.TYPE_FPU = 0x000F; // FPU SAVE (save/restore; 94 bytes in real-mode, 108 bytes in protected-mode)
/*
* TYPE_MODE values. Order is somewhat important, as all values implying
@ -5121,6 +5121,20 @@ if (DEBUGGER) {
case Debugger.TYPE_LONG:
sPrefix = "DWORD";
break;
case Debugger.TYPE_SI:
case Debugger.TYPE_SR:
sPrefix = "SREAL";
break;
case Debugger.TYPE_LI:
case Debugger.TYPE_LR:
sPrefix = "LREAL";
break;
case Debugger.TYPE_TR:
sPrefix = "TREAL";
break;
case Debugger.TYPE_PD:
sPrefix = "DEC18";
break;
}
if (sPrefix) sOperand = sPrefix + ' ' + sOperand;
}
@ -7289,14 +7303,18 @@ if (DEBUGGER) {
*/
Debugger.prototype.doFPURegisters = function(asArgs)
{
this.assert(this.fpu);
var fpu = this.fpu;
this.assert(fpu);
var wStatus = fpu.getStatus(), wControl = fpu.getControl();
for (var i = 0; i < 8; i++) {
var a = this.fpu.readFPUStack(i);
var a = fpu.readFPUStack(i);
if (!a) break;
var sValue = str.pad(a[2].toFixed(15), 24, true);
this.println("ST" + i + ": " + sValue + " " + str.toHex(a[4]) + "," + str.toHex(a[3]) + " [" + Debugger.FPU_TAGS[a[1]] + "]");
this.println("ST" + i + ": " + sValue + " " + str.toHex(a[4]) + "," + str.toHex(a[3]) + " [" + a[0] + ":" + Debugger.FPU_TAGS[a[1]] + "]");
// this.println(" REG" + a[0] + " " + str.toBin(a[7], 16) + str.toBin(a[6]) + str.toBin(a[5]));
}
this.println(" B3SSS210ESPUOZDI xxxIRRPPIxPUOZDI");
this.println("SW: " + str.toBin(wStatus, 16) + " (" + str.toHexWord(wStatus) + ") CW: " + str.toBin(wControl, 16) + " (" + str.toHexWord(wControl) + ")");
};
/**