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Notes on FPU stack faults (which only affects the 80387 and up, which isn't fully supported yet)

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This commit is contained in:
Jeff Parsons 2015-12-01 11:44:57 -08:00
commit 3bad5547c2
2 changed files with 14 additions and 2 deletions
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modules/pcjs/lib/x86.js
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@ -554,7 +554,7 @@ var X86 = {
OE: 0x0008, // bit 3: Overflow
UE: 0x0010, // bit 4: Underflow
PE: 0x0020, // bit 5: Precision
SF: 0x0040, // bit 6: Stack Fault (80387 and later)
SF: 0x0040, // bit 6: Stack Fault (80387 and later; triggers an Invalid Operation exception)
EXC: 0x007F, // all of the above exceptions
ES: 0x0080, // bit 7: Error/Exception Status/Summary (Interrupt Request on 8087)
C0: 0x0100, // bit 8: Condition Code 0