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Updated 80386 A0 and B0 stepping information

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(and some minor CPU tweaks for the 80386 as well)
This commit is contained in:
Jeff Parsons 2015-03-09 21:49:13 -07:00 • committed by jeffpar
commit 76932246ec
10 changed files with 1764 additions and 1470 deletions
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17
modules/pcjs/lib/x86opxx.js
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@ -47,10 +47,13 @@ X86.opADDmb = function ADDmb()
{
var b = this.getIPByte();
/*
* Opcode bytes 0x00 0x00 are sufficiently uncommon that it's more likely we've started executing
* in the weeds, so we'll stop the CPU if we're in DEBUG mode.
* Opcode bytes 0x00 0x00 are sufficiently uncommon that it's more likely we've started
* executing in the weeds, so we'll print a warning if Messages.CPU is enabled (at which
* point you can also choose to halt if Messages.HALT is enabled).
*/
if (DEBUG && DEBUGGER && !b) this.stopCPU();
if (DEBUG && !b) {
this.printMessage("suspicious opcode: 0x00 0x00");
}
this.aOpModMemByte[b].call(this, X86.fnADDb);
};
@ -2133,7 +2136,7 @@ X86.opJNLE = function JNLE()
X86.opGrp1b = function GRP1b()
{
this.aOpModGrpByte[this.getIPByte()].call(this, X86.aOpGrp1b, this.getIPByte);
this.nStepCycles -= (this.regEAWrite < 0? 1 : this.CYCLES.nOpCyclesArithMID);
this.nStepCycles -= (this.regEAWrite === X86.ADDR_INVALID? 1 : this.CYCLES.nOpCyclesArithMID);
};
/**
@ -2144,7 +2147,7 @@ X86.opGrp1b = function GRP1b()
X86.opGrp1w = function GRP1w()
{
this.aOpModGrpWord[this.getIPByte()].call(this, X86.aOpGrp1w, this.getIPWord);
this.nStepCycles -= (this.regEAWrite < 0? 1 : this.CYCLES.nOpCyclesArithMID);
this.nStepCycles -= (this.regEAWrite === X86.ADDR_INVALID? 1 : this.CYCLES.nOpCyclesArithMID);
};
/**
@ -2155,7 +2158,7 @@ X86.opGrp1w = function GRP1w()
X86.opGrp1sw = function GRP1sw()
{
this.aOpModGrpWord[this.getIPByte()].call(this, X86.aOpGrp1w, this.getIPDisp);
this.nStepCycles -= (this.regEAWrite < 0? 1 : this.CYCLES.nOpCyclesArithMID);
this.nStepCycles -= (this.regEAWrite === X86.ADDR_INVALID? 1 : this.CYCLES.nOpCyclesArithMID);
};
/**
@ -2627,7 +2630,7 @@ X86.opCALLF = function CALLF()
*/
X86.opWAIT = function WAIT()
{
this.printMessage("WAIT not implemented", Messages.CPU);
this.printMessage("WAIT not implemented");
this.nStepCycles--;
};