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Standard-mode Windows 3.0 finally runs properly

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This commit is contained in:
Jeff Parsons 2015-07-30 12:50:44 -07:00
commit 812c0af6b6
163 changed files with 7862 additions and 980 deletions
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42
modules/pcjs/lib/x86func.js
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@ -3437,6 +3437,7 @@ X86.fnXCHGrb = function XCHGRb(dst, src)
/*
* Decode which register was src
*/
this.assert(!(dst & ~0xff)); // confirm that dst contains only 8 bits
switch (this.bModRM & 0x7) {
case 0x0: // AL
this.regEAX = (this.regEAX & ~0xff) | dst;
@ -3451,16 +3452,16 @@ X86.fnXCHGrb = function XCHGRb(dst, src)
this.regEBX = (this.regEBX & ~0xff) | dst;
break;
case 0x4: // AH
this.regEAX = (this.regEAX & 0xff) | (dst << 8);
this.regEAX = (this.regEAX & ~0xff00) | (dst << 8);
break;
case 0x5: // CH
this.regECX = (this.regECX & 0xff) | (dst << 8);
this.regECX = (this.regECX & ~0xff00) | (dst << 8);
break;
case 0x6: // DH
this.regEDX = (this.regEDX & 0xff) | (dst << 8);
this.regEDX = (this.regEDX & ~0xff00) | (dst << 8);
break;
case 0x7: // BH
this.regEBX = (this.regEBX & 0xff) | (dst << 8);
this.regEBX = (this.regEBX & ~0xff00) | (dst << 8);
break;
default:
break; // there IS no other case, but JavaScript inspections don't know that
@ -3501,30 +3502,31 @@ X86.fnXCHGrw = function XCHGRw(dst, src)
/*
* Decode which register was src
*/
this.assert(!(dst & ~this.dataMask)); // confirm that dst contains only 16 or 32 bits
switch (this.bModRM & 0x7) {
case 0x0: // AX
this.regEAX = dst;
case 0x0: // [E]AX
this.regEAX = (this.regEAX & ~this.dataMask) | dst;
break;
case 0x1: // CX
this.regECX = dst;
case 0x1: // [E]CX
this.regECX = (this.regECX & ~this.dataMask) | dst;
break;
case 0x2: // DX
this.regEDX = dst;
case 0x2: // [E]DX
this.regEDX = (this.regEDX & ~this.dataMask) | dst;
break;
case 0x3: // BX
this.regEBX = dst;
case 0x3: // [E]BX
this.regEBX = (this.regEBX & ~this.dataMask) | dst;
break;
case 0x4: // SP
this.setSP(dst);
case 0x4: // [E]SP
this.setSP((this.getSP() & ~this.dataMask) | dst);
break;
case 0x5: // BP
this.regEBP = dst;
case 0x5: // [E]BP
this.regEBP = (this.regEBX & ~this.dataMask) | dst;
break;
case 0x6: // SI
this.regESI = dst;
case 0x6: // [E]SI
this.regESI = (this.regESI & ~this.dataMask) | dst;
break;
case 0x7: // DI
this.regEDI = dst;
case 0x7: // [E]DI
this.regEDI = (this.regEDI & ~this.dataMask) | dst;
break;
default:
break; // there IS no other case, but JavaScript inspections don't know that