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Enhanced INT return handling, and reorganized some disks.

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This commit is contained in:
Jeff Parsons 2014-12-13 10:09:12 -08:00 • committed by jeffpar
commit 27359de735
140 changed files with 701 additions and 503 deletions
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13
modules/pcjs/lib/x86help.js
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@ -484,9 +484,6 @@ var X86Help = {
this.segES.load(0);
}
}
/*
* We check for possible "INT n" software interrupt returns only in the cases of "IRET" and "RETF 2".
*/
if (n == 2 && this.cIntReturn) this.checkIntReturn(this.regEIP);
},
/**
@ -576,7 +573,7 @@ var X86Help = {
opHelpFault: function(nFault, nError, fHalt)
{
if (!this.aFlags.fComplete) {
this.messageDebugger("Fault " + str.toHexByte(nFault) + " blocked by Debugger", Messages.WARN);
this.messagePrint("Fault " + str.toHexByte(nFault) + " blocked by Debugger", Messages.WARN);
this.setIP(this.opEA - this.segCS.base);
return;
}
@ -689,22 +686,22 @@ var X86Help = {
if (this.messageEnabled(bitsMessage) || fHalt) {
var sMessage = (fHalt? '\n' : '') + "Fault " + str.toHexByte(nFault) + (nError != null? " (" + str.toHexWord(nError) + ")" : "") + " on opcode 0x" + str.toHexByte(bOpcode) + " at " + str.toHexAddr(this.regIP, this.segCS.sel) + " (%" + str.toHex(this.regEIP, 6) + ")";
var fRunning = this.aFlags.fRunning;
if (this.messageDebugger(sMessage, bitsMessage)) {
if (this.messagePrint(sMessage, bitsMessage)) {
if (fHalt) {
/*
* By setting fHalt to fRunning (which is true while running but false while single-stepping),
* this allows a fault to be dispatched when you single-step over a faulting instruction; you can
* then continue single-stepping into the fault handler, or start running again.
*
* Note that we had to capture fRunning before calling messageDebugger(), because if MESSAGE.HALT
* is set, messageDebugger() will have already halted the CPU.
* Note that we had to capture fRunning before calling messagePrint(), because if MESSAGE.HALT
* is set, messagePrint() will have already halted the CPU.
*/
fHalt = fRunning;
this.dbg.stopCPU();
}
} else {
/*
* If messageDebugger() returned false, then messageEnabled() must have returned false as well, which
* If messagePrint() returned false, then messageEnabled() must have returned false as well, which
* means that fHalt must be true. Which means we should shut the machine down.
*/
this.assert(fHalt);