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Release of v1.15.6

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Some FDC tweaks, a CPU emulation fix, and some Debugger message improvements
This commit is contained in:
Jeff Parsons 2014-10-23 20:01:29 -07:00 • committed by jeffpar
commit 326cfbb42c
146 changed files with 6798 additions and 859 deletions
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8
my_modules/pcjs-client/lib/x86op0f.js
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@ -245,7 +245,8 @@ var X86Op0F = {
* 145E:4BC3 CB RETF
*
* This code is expecting SGDT on an 80286 to set the 6th "undefined" byte to 0xFF. So we use setWord()
* instead of setByte() and force the upper byte to 0xFF. TODO: Remove the 0xFF00 on post-80286 processors.
* instead of setByte() and force the upper byte to 0xFF. TODO: Remove the 0xFF00 below on post-80286
* processors; also, this behavior may be unique to real-mode.
*/
this.setWord(this.regEA + 4, 0xFF00 | (this.addrGDT >> 16));
this.nStepCycles -= 11;
@ -269,8 +270,9 @@ var X86Op0F = {
dst = this.addrIDTLimit - this.addrIDT;
this.setWord(this.regEA + 2, this.addrIDT);
/*
* As with SGDT, the 6th byte is technically "undefined" on an 80286, but given that SGDT now sets it to 0xFF,
* we mimic SGDT.
* As with SGDT, the 6th byte is technically "undefined" on an 80286, but we now set it to 0xFF, for the
* same reasons discussed in SGDT (above). TODO: Remove the 0xFF00 below on post-80286 processors; also,
* this behavior may be unique to real-mode.
*/
this.setWord(this.regEA + 4, 0xFF00 | (this.addrIDT >> 16));
this.nStepCycles -= 12;