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Limited Debug register support

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This commit is contained in:
Jeff Parsons 2015-08-02 21:11:19 -07:00
commit 9fa2941394
7 changed files with 168 additions and 85 deletions
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15
modules/pcjs/lib/x86.js
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@ -409,18 +409,19 @@ var X86 = {
* Bit values for opFlags, which are all reset to zero prior to each instruction
*/
OPFLAG: {
NOREAD: 0x0001,
NOWRITE: 0x0002,
NOINTR: 0x0004, // indicates a segreg has been set, or a prefix, or an STI (delay INTR acknowledgement)
FAULT: 0x0008, // indicates a fault occurred during the current instruction
NOREAD: 0x0001, // disable memory reads for the remainder of the current instruction
NOWRITE: 0x0002, // disable memory writes for the remainder of the current instruction
NOINTR: 0x0004, // a segreg has been set, or a prefix, or an STI (delay INTR acknowledgement)
SEG: 0x0010, // segment override
LOCK: 0x0020, // lock prefix
REPZ: 0x0040, // repeat while Z (NOTE: this value MUST match PS.ZF; see opCMPSb/opCMPSw/opSCASb/opSCASw)
REPNZ: 0x0080, // repeat while NZ
REPEAT: 0x0100, // indicates that an instruction is being repeated (ie, some iteration AFTER the first)
REPEAT: 0x0100, // an instruction is being repeated (ie, some iteration AFTER the first)
PUSHSP: 0x0200, // the SP register is potentially being referenced by a PUSH SP opcode, adjustment may be required
DATASIZE: 0x1000, // data size override
ADDRSIZE: 0x2000 // address size override
DATASIZE: 0x0400, // data size override
ADDRSIZE: 0x0800, // address size override
FAULT: 0x1000, // a fault occurred during the current instruction
DEBUG: 0x2000 // a DEBUG exception occurred during the current instruction
},
/*
* Bit values for intFlags