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Added Compaq DeskPro 386 ROMs

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This commit is contained in:
Jeff Parsons 2015-02-22 15:42:54 -08:00 • committed by jeffpar
commit eb196c3048
27 changed files with 5541 additions and 2285 deletions
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21
modules/pcjs/lib/x86seg.js
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@ -255,7 +255,7 @@ X86Seg.loadIDTProt = function loadIDTProt(nIDT)
*/
X86Seg.checkReadReal = function checkReadReal(off, cb, fSuppress)
{
return this.base + off;
return (this.base + off) | 0;
};
/**
@ -272,7 +272,7 @@ X86Seg.checkReadReal = function checkReadReal(off, cb, fSuppress)
*/
X86Seg.checkWriteReal = function checkWriteReal(off, cb, fSuppress)
{
return this.base + off;
return (this.base + off) | 0;
};
/**
@ -467,7 +467,7 @@ X86Seg.switchTSS = function switchTSS(selNew, fNest)
cpu.setSP(cpu.getShort(addrNew + offSP));
cpu.segLDT.load(cpu.getShort(addrNew + X86.TSS.TASK_LDT));
if (fNest) cpu.setShort(addrNew + X86.TSS.PREV_TSS, selOld);
cpu.regMSW |= X86.MSW.TS;
cpu.regCR0 |= X86.CR0.MSW.TS;
return true;
};
@ -760,16 +760,21 @@ X86Seg.prototype.loadDesc8 = function(addrDesc, sel, fSuppress)
* setBase(addr)
*
* This is used in unusual situations where the base must be set independently; normally, the base
* is set according to the selector provided to load(), but there are a few cases where setBase() is
* required (eg, in resetRegs(), where the 80286 wants the real-mode CS selector to be 0xF000 but the
* CS base must be 0xFF0000).
* is set according to the selector provided to load(), but there are a few cases where setBase()
* is required.
*
* For example, in resetRegs(), the real-mode CS selector must be reset to 0xF000 for an 80286 or 80386,
* but the CS base must be set to 0x00FF0000 or 0xFFFF0000, respectively. To simplify life for setBase()
* callers, we allow them to specify 32-bit bases, which we then truncate to 24 bits as needed.
*
* @this {X86Seg}
* @param {number} addr
* @return {number} addr, truncated as needed
*/
X86Seg.prototype.setBase = function(addr)
{
this.base = addr;
if (this.cpu.model < X86.MODEL_80386) addr &= 0xffffff;
return this.base = addr;
};
/**
@ -825,7 +830,7 @@ X86Seg.prototype.restore = function(a)
X86Seg.prototype.updateMode = function(fProt)
{
if (fProt === undefined) {
fProt = !!(this.cpu.regMSW & X86.MSW.PE);
fProt = !!(this.cpu.regCR0 & X86.CR0.MSW.PE);
}
this.fExpDown = false;
if (fProt) {