Retro/pcjs
Watch
1
0
Fork
You've already forked pcjs
 0
Code Issues Pull requests Projects Releases Packages Wiki Activity Actions

v1.18.5: Working on running Windows 3.00 in real/standard/enhanced modes

Browse source
This commit is contained in:
Jeff Parsons 2015-07-26 17:02:48 -07:00
commit e269cd49c3
32 changed files with 11054 additions and 4121 deletions
Download patch file Download diff file Expand all files Collapse all files

30
modules/pcjs/lib/x86seg.js
View file

@ -786,7 +786,7 @@ X86Seg.prototype.loadDesc8 = function(addrDesc, sel, fSuppress)
this.type = type;
this.ext = ext;
this.addrDesc = addrDesc;
this.updateMode(true);
this.updateMode(true, true, false);
if (fGate === false && this.fStackSwitch) {
/*
@ -1194,21 +1194,21 @@ X86Seg.prototype.updateMode = function(fLoad, fProt, fV86)
this.addrSize = this.dataSize;
this.addrMask = this.dataMask;
}
} else {
/*
* One important feature of real-mode (as compared to V86-mode) are that other segment attributes
* (eg, limit, operand size, address size, etc) are NOT updated, enabling features like "big real-mode"
* (aka "unreal mode"), which is used by system software like HIMEM.SYS to access extended memory from
* real-mode.
*/
this.load = this.loadReal;
this.loadIDT = this.loadIDTReal;
this.checkRead = this.checkReadReal;
this.checkWrite = this.checkWriteReal;
this.cpl = this.dpl = 0;
this.addrDesc = X86.ADDR_INVALID;
this.fStackSwitch = false;
return;
}
/*
* One important feature of real-mode (as compared to V86-mode) are that other segment attributes
* (eg, limit, operand size, address size, etc) are NOT updated, enabling features like "big real-mode"
* (aka "unreal mode"), which is used by system software like HIMEM.SYS to access extended memory from
* real-mode.
*/
this.load = this.loadReal;
this.loadIDT = this.loadIDTReal;
this.checkRead = this.checkReadReal;
this.checkWrite = this.checkWriteReal;
this.cpl = this.dpl = 0;
this.addrDesc = X86.ADDR_INVALID;
this.fStackSwitch = false;
};
/**