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[SOFT386]
Implement JMP rel16/32 svn path=/branches/ntvdm/; revision=60146
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@ -4212,10 +4212,53 @@ SOFT386_OPCODE_HANDLER(Soft386OpcodeCall)
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SOFT386_OPCODE_HANDLER(Soft386OpcodeJmp)
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SOFT386_OPCODE_HANDLER(Soft386OpcodeJmp)
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{
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{
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// TODO: NOT IMPLEMENTED
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BOOLEAN Size = State->SegmentRegs[SOFT386_REG_CS].Size;
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UNIMPLEMENTED;
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return FALSE;
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/* Make sure this is the right instruction */
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ASSERT(Opcode == 0xE9);
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if (State->PrefixFlags == SOFT386_PREFIX_OPSIZE)
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{
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/* The OPSIZE prefix toggles the size */
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Size = !Size;
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}
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else if (State->PrefixFlags != 0)
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{
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/* Invalid prefix */
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Soft386Exception(State, SOFT386_EXCEPTION_UD);
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return FALSE;
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}
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if (Size)
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{
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LONG Offset = 0;
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/* Fetch the offset */
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if (!Soft386FetchDword(State, (PULONG)&Offset))
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{
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/* An exception occurred */
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return FALSE;
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}
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/* Move the instruction pointer */
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State->InstPtr.Long += Offset;
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}
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else
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{
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SHORT Offset = 0;
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/* Fetch the offset */
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if (!Soft386FetchWord(State, (PUSHORT)&Offset))
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{
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/* An exception occurred */
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return FALSE;
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}
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/* Move the instruction pointer */
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State->InstPtr.LowWord += Offset;
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}
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return TRUE;
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}
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}
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SOFT386_OPCODE_HANDLER(Soft386OpcodeJmpAbs)
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SOFT386_OPCODE_HANDLER(Soft386OpcodeJmpAbs)
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