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This commit is contained in:
Jeff Parsons 2015-11-18 10:26:54 -08:00
commit 945da70267
3 changed files with 575 additions and 265 deletions
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10
modules/pcjs/lib/x86.js
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@ -524,7 +524,7 @@ var X86 = {
FPU: {
MODEL_8087: 8087,
MODEL_80287: 80287,
MODEL_80287XL: 80387, // internally, the 80287XL was an 80387SX, so I'm not sure we really want/need a unique identifier
MODEL_80287XL: 80387, // internally, the 80287XL was an 80387SX, so in general, we treat this as MODEL_80387
MODEL_80387: 80387,
CONTROL: { // FPU Control Word
IM: 0x0001, // bit 0: Invalid Operation Mask
@ -538,6 +538,10 @@ var X86 = {
IEM: 0x0080, // bit 7: Interrupt Enable Mask (0 enables interrupts, 1 masks them; 8087 only)
PC: 0x0300, // bits 8-9: Precision Control
RC: 0x0C00, // bits 10-11: Rounding Control
RC_NEAR: 0x0000,
RC_DOWN: 0x0400,
RC_UP: 0x0800,
RC_CHOP: 0x0C00,
IC: 0x1000, // bit 12: Infinity Control (0 for Projective, 1 for Affine)
// bits 13-15: unused
INIT: 0x03BF, // X86.FPU.CONTROL.IM | X86.FPU.CONTROL.DM | X86.FPU.CONTROL.ZM | X86.FPU.CONTROL.OM | X86.FPU.CONTROL.UM | X86.FPU.CONTROL.PM | X86.FPU.CONTROL.IEM | X86.FPU.CONTROL.PC
@ -557,10 +561,10 @@ var X86 = {
C1: 0x0200, // bit 9: Condition Code 1
C2: 0x0400, // bit 10: Condition Code 2
ST: 0x3800, // bits 11-13: Stack Top
ST_SHIFT: 11,
C3: 0x4000, // bit 14: Condition Code 3
CC: 0x4700, // all condition code bits
BUSY: 0x8000, // bit 15: Busy
ST_SHIFT: 11
BUSY: 0x8000 // bit 15: Busy
},
TAGS: {
VALID: 0x0,