892 lines
31 KiB
C
892 lines
31 KiB
C
#ifdef USE_NEW_DYNAREC
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# define CALL_FAR_w(new_seg, new_pc) \
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old_cs = CS; \
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old_pc = cpu_state.pc; \
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cpu_state.pc = new_pc; \
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optype = CALL; \
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cgate16 = cgate32 = 0; \
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if (msw & 1) \
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loadcscall(new_seg, old_pc); \
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else { \
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loadcs(new_seg); \
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cycles -= timing_call_rm; \
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} \
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optype = 0; \
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if (cpu_state.abrt) { \
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cgate16 = cgate32 = 0; \
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return 1; \
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} \
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oldss = ss; \
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if (cgate32) { \
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uint32_t old_esp = ESP; \
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PUSH_L(old_cs); \
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if (cpu_state.abrt) { \
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CS = old_cs; \
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cgate16 = cgate32 = 0; \
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return 1; \
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} \
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PUSH_L(old_pc); \
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if (cpu_state.abrt) { \
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CS = old_cs; \
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ESP = old_esp; \
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return 1; \
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} \
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} else { \
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uint32_t old_esp = ESP; \
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PUSH_W(old_cs); \
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if (cpu_state.abrt) { \
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CS = old_cs; \
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cgate16 = cgate32 = 0; \
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return 1; \
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} \
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PUSH_W(old_pc); \
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if (cpu_state.abrt) { \
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CS = old_cs; \
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ESP = old_esp; \
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return 1; \
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} \
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}
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# define CALL_FAR_l(new_seg, new_pc) \
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old_cs = CS; \
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old_pc = cpu_state.pc; \
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cpu_state.pc = new_pc; \
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optype = CALL; \
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cgate16 = cgate32 = 0; \
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if (msw & 1) \
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loadcscall(new_seg, old_pc); \
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else { \
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loadcs(new_seg); \
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cycles -= timing_call_rm; \
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} \
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optype = 0; \
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if (cpu_state.abrt) { \
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cgate16 = cgate32 = 0; \
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return 1; \
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} \
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oldss = ss; \
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if (cgate16) { \
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uint32_t old_esp = ESP; \
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PUSH_W(old_cs); \
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if (cpu_state.abrt) { \
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CS = old_cs; \
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cgate16 = cgate32 = 0; \
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return 1; \
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} \
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PUSH_W(old_pc); \
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if (cpu_state.abrt) { \
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CS = old_cs; \
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ESP = old_esp; \
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return 1; \
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} \
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} else { \
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uint32_t old_esp = ESP; \
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PUSH_L(old_cs); \
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if (cpu_state.abrt) { \
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CS = old_cs; \
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cgate16 = cgate32 = 0; \
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return 1; \
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} \
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PUSH_L(old_pc); \
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if (cpu_state.abrt) { \
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CS = old_cs; \
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ESP = old_esp; \
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return 1; \
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} \
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}
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#else
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# define CALL_FAR_w(new_seg, new_pc) \
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old_cs = CS; \
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old_pc = cpu_state.pc; \
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oxpc = cpu_state.pc; \
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cpu_state.pc = new_pc; \
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optype = CALL; \
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cgate16 = cgate32 = 0; \
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if (msw & 1) \
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loadcscall(new_seg); \
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else { \
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loadcs(new_seg); \
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cycles -= timing_call_rm; \
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} \
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optype = 0; \
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if (cpu_state.abrt) { \
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cgate16 = cgate32 = 0; \
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return 1; \
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} \
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oldss = ss; \
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if (cgate32) { \
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uint32_t old_esp = ESP; \
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PUSH_L(old_cs); \
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if (cpu_state.abrt) { \
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cgate16 = cgate32 = 0; \
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return 1; \
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} \
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PUSH_L(old_pc); \
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if (cpu_state.abrt) { \
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ESP = old_esp; \
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return 1; \
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} \
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} else { \
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uint32_t old_esp = ESP; \
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PUSH_W(old_cs); \
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if (cpu_state.abrt) { \
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cgate16 = cgate32 = 0; \
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return 1; \
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} \
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PUSH_W(old_pc); \
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if (cpu_state.abrt) { \
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ESP = old_esp; \
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return 1; \
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} \
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}
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# define CALL_FAR_l(new_seg, new_pc) \
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old_cs = CS; \
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old_pc = cpu_state.pc; \
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oxpc = cpu_state.pc; \
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cpu_state.pc = new_pc; \
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optype = CALL; \
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cgate16 = cgate32 = 0; \
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if (msw & 1) \
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loadcscall(new_seg); \
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else { \
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loadcs(new_seg); \
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cycles -= timing_call_rm; \
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} \
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optype = 0; \
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if (cpu_state.abrt) { \
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cgate16 = cgate32 = 0; \
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return 1; \
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} \
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oldss = ss; \
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if (cgate16) { \
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uint32_t old_esp = ESP; \
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PUSH_W(old_cs); \
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if (cpu_state.abrt) { \
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cgate16 = cgate32 = 0; \
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return 1; \
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} \
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PUSH_W(old_pc); \
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if (cpu_state.abrt) { \
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ESP = old_esp; \
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return 1; \
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} \
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} else { \
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uint32_t old_esp = ESP; \
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PUSH_L(old_cs); \
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if (cpu_state.abrt) { \
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cgate16 = cgate32 = 0; \
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return 1; \
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} \
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PUSH_L(old_pc); \
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if (cpu_state.abrt) { \
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ESP = old_esp; \
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return 1; \
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} \
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}
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#endif
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static int
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opCALL_far_w(uint32_t fetchdat)
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{
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uint32_t old_cs;
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uint32_t old_pc;
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uint16_t new_cs;
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uint16_t new_pc;
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int cycles_old = cycles;
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UN_USED(cycles_old);
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new_pc = getwordf();
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new_cs = getword();
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if (cpu_state.abrt)
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return 1;
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CALL_FAR_w(new_cs, new_pc);
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CPU_BLOCK_END();
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PREFETCH_RUN(cycles_old - cycles, 5, -1, 0, 0, cgate16 ? 2 : 0, cgate16 ? 0 : 2, 0);
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PREFETCH_FLUSH();
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return 0;
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}
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static int
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opCALL_far_l(uint32_t fetchdat)
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{
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uint32_t old_cs;
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uint32_t old_pc;
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uint32_t new_cs;
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uint32_t new_pc;
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int cycles_old = cycles;
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UN_USED(cycles_old);
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new_pc = getlong();
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new_cs = getword();
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if (cpu_state.abrt)
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return 1;
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CALL_FAR_l(new_cs, new_pc);
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CPU_BLOCK_END();
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PREFETCH_RUN(cycles_old - cycles, 7, -1, 0, 0, cgate16 ? 2 : 0, cgate16 ? 0 : 2, 0);
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PREFETCH_FLUSH();
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return 0;
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}
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static int
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opFF_w_a16(uint32_t fetchdat)
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{
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uint16_t old_cs;
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uint16_t new_cs;
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uint32_t old_pc;
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uint32_t new_pc;
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int cycles_old = cycles;
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UN_USED(cycles_old);
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uint16_t temp;
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fetch_ea_16(fetchdat);
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switch (rmdat & 0x38) {
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case 0x00: /*INC w*/
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if (cpu_mod != 3) {
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SEG_CHECK_READ(cpu_state.ea_seg);
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if (cpu_state.abrt)
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return 1;
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CHECK_READ(cpu_state.ea_seg, cpu_state.eaaddr, cpu_state.eaaddr + 1UL);
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}
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temp = geteaw();
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if (cpu_state.abrt)
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return 1;
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if (cpu_mod != 3) {
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CHECK_WRITE(cpu_state.ea_seg, cpu_state.eaaddr, cpu_state.eaaddr + 1UL);
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}
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seteaw(temp + 1);
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if (cpu_state.abrt)
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return 1;
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setadd16nc(temp, 1);
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CLOCK_CYCLES((cpu_mod == 3) ? timing_rr : timing_mm);
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PREFETCH_RUN((cpu_mod == 3) ? timing_rr : timing_mm, 2, rmdat, (cpu_mod == 3) ? 0 : 1, 0, (cpu_mod == 3) ? 0 : 1, 0, 0);
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break;
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case 0x08: /*DEC w*/
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if (cpu_mod != 3) {
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SEG_CHECK_READ(cpu_state.ea_seg);
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if (cpu_state.abrt)
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return 1;
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CHECK_READ(cpu_state.ea_seg, cpu_state.eaaddr, cpu_state.eaaddr + 1UL);
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}
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temp = geteaw();
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if (cpu_state.abrt)
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return 1;
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if (cpu_mod != 3) {
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CHECK_WRITE(cpu_state.ea_seg, cpu_state.eaaddr, cpu_state.eaaddr + 1UL);
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}
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seteaw(temp - 1);
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if (cpu_state.abrt)
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return 1;
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setsub16nc(temp, 1);
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CLOCK_CYCLES((cpu_mod == 3) ? timing_rr : timing_mm);
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PREFETCH_RUN((cpu_mod == 3) ? timing_rr : timing_mm, 2, rmdat, (cpu_mod == 3) ? 0 : 1, 0, (cpu_mod == 3) ? 0 : 1, 0, 0);
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break;
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case 0x10: /*CALL*/
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if (cpu_mod != 3) {
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SEG_CHECK_READ(cpu_state.ea_seg);
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if (cpu_state.abrt)
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return 1;
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CHECK_READ(cpu_state.ea_seg, cpu_state.eaaddr, cpu_state.eaaddr + 1UL);
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}
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new_pc = geteaw();
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if (cpu_state.abrt)
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return 1;
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PUSH_W(cpu_state.pc);
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cpu_state.pc = new_pc;
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CPU_BLOCK_END();
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if (is486) {
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CLOCK_CYCLES(5);
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} else {
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CLOCK_CYCLES((cpu_mod == 3) ? 7 : 10);
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}
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PREFETCH_RUN((cpu_mod == 3) ? 7 : 10, 2, rmdat, (cpu_mod == 3) ? 0 : 1, 0, 1, 0, 0);
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PREFETCH_FLUSH();
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break;
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case 0x18: /*CALL far*/
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if (cpu_mod != 3) {
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SEG_CHECK_READ(cpu_state.ea_seg);
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if (cpu_state.abrt)
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return 1;
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CHECK_READ(cpu_state.ea_seg, cpu_state.eaaddr, cpu_state.eaaddr + 3UL);
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}
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new_pc = readmemw(easeg, cpu_state.eaaddr);
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new_cs = readmemw(easeg, (cpu_state.eaaddr + 2));
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if (cpu_state.abrt)
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return 1;
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CALL_FAR_w(new_cs, new_pc);
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CPU_BLOCK_END();
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PREFETCH_RUN(cycles_old - cycles, 2, rmdat, 2, 0, cgate16 ? 2 : 0, cgate16 ? 0 : 2, 0);
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PREFETCH_FLUSH();
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break;
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case 0x20: /*JMP*/
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if (cpu_mod != 3) {
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SEG_CHECK_READ(cpu_state.ea_seg);
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if (cpu_state.abrt)
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return 1;
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CHECK_READ(cpu_state.ea_seg, cpu_state.eaaddr, cpu_state.eaaddr + 1UL);
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}
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new_pc = geteaw();
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if (cpu_state.abrt)
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return 1;
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cpu_state.pc = new_pc;
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CPU_BLOCK_END();
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if (is486) {
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CLOCK_CYCLES(5);
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} else {
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CLOCK_CYCLES((cpu_mod == 3) ? 7 : 10);
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}
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PREFETCH_RUN((cpu_mod == 3) ? 7 : 10, 2, rmdat, (cpu_mod == 3) ? 0 : 1, 0, 0, 0, 0);
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PREFETCH_FLUSH();
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break;
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case 0x28: /*JMP far*/
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if (cpu_mod != 3) {
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SEG_CHECK_READ(cpu_state.ea_seg);
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if (cpu_state.abrt)
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return 1;
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CHECK_READ(cpu_state.ea_seg, cpu_state.eaaddr, cpu_state.eaaddr + 3UL);
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}
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#ifdef USE_NEW_DYNAREC
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old_pc = cpu_state.pc;
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#else
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oxpc = cpu_state.pc;
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#endif
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new_pc = readmemw(easeg, cpu_state.eaaddr);
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new_cs = readmemw(easeg, cpu_state.eaaddr + 2);
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if (cpu_state.abrt)
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return 1;
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cpu_state.pc = new_pc;
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#ifdef USE_NEW_DYNAREC
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loadcsjmp(new_cs, old_pc);
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if (cpu_state.abrt)
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return 1;
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#else
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loadcsjmp(new_cs, oxpc);
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if (cpu_state.abrt)
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return 1;
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#endif
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CPU_BLOCK_END();
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PREFETCH_RUN(cycles_old - cycles, 2, rmdat, 2, 0, 0, 0, 0);
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PREFETCH_FLUSH();
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break;
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case 0x30: /*PUSH w*/
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if (cpu_mod != 3) {
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SEG_CHECK_READ(cpu_state.ea_seg);
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if (cpu_state.abrt)
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return 1;
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CHECK_READ(cpu_state.ea_seg, cpu_state.eaaddr, cpu_state.eaaddr + 1UL);
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}
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temp = geteaw();
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if (cpu_state.abrt)
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return 1;
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PUSH_W(temp);
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CLOCK_CYCLES((cpu_mod == 3) ? 2 : 5);
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PREFETCH_RUN((cpu_mod == 3) ? 2 : 5, 2, rmdat, (cpu_mod == 3) ? 0 : 1, 0, 1, 0, 0);
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break;
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default:
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// fatal("Bad FF opcode %02X\n",rmdat&0x38);
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x86illegal();
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}
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return cpu_state.abrt;
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}
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static int
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opFF_w_a32(uint32_t fetchdat)
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{
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uint16_t old_cs;
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uint16_t new_cs;
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uint32_t old_pc;
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uint32_t new_pc;
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int cycles_old = cycles;
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UN_USED(cycles_old);
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uint16_t temp;
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fetch_ea_32(fetchdat);
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switch (rmdat & 0x38) {
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case 0x00: /*INC w*/
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if (cpu_mod != 3) {
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SEG_CHECK_READ(cpu_state.ea_seg);
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if (cpu_state.abrt)
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return 1;
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CHECK_READ(cpu_state.ea_seg, cpu_state.eaaddr, cpu_state.eaaddr + 1UL);
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}
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temp = geteaw();
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if (cpu_state.abrt)
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return 1;
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if (cpu_mod != 3) {
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CHECK_WRITE(cpu_state.ea_seg, cpu_state.eaaddr, cpu_state.eaaddr + 1UL);
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}
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seteaw(temp + 1);
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if (cpu_state.abrt)
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return 1;
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setadd16nc(temp, 1);
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CLOCK_CYCLES((cpu_mod == 3) ? timing_rr : timing_mm);
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PREFETCH_RUN((cpu_mod == 3) ? timing_rr : timing_mm, 2, rmdat, (cpu_mod == 3) ? 0 : 1, 0, (cpu_mod == 3) ? 0 : 1, 0, 1);
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break;
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case 0x08: /*DEC w*/
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if (cpu_mod != 3) {
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SEG_CHECK_READ(cpu_state.ea_seg);
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if (cpu_state.abrt)
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return 1;
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CHECK_READ(cpu_state.ea_seg, cpu_state.eaaddr, cpu_state.eaaddr + 1UL);
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}
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temp = geteaw();
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if (cpu_state.abrt)
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return 1;
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if (cpu_mod != 3) {
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CHECK_WRITE(cpu_state.ea_seg, cpu_state.eaaddr, cpu_state.eaaddr + 1UL);
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}
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seteaw(temp - 1);
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if (cpu_state.abrt)
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return 1;
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setsub16nc(temp, 1);
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CLOCK_CYCLES((cpu_mod == 3) ? timing_rr : timing_mm);
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PREFETCH_RUN((cpu_mod == 3) ? timing_rr : timing_mm, 2, rmdat, (cpu_mod == 3) ? 0 : 1, 0, (cpu_mod == 3) ? 0 : 1, 0, 1);
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break;
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case 0x10: /*CALL*/
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if (cpu_mod != 3) {
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SEG_CHECK_READ(cpu_state.ea_seg);
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if (cpu_state.abrt)
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return 1;
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CHECK_READ(cpu_state.ea_seg, cpu_state.eaaddr, cpu_state.eaaddr + 1UL);
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}
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new_pc = geteaw();
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if (cpu_state.abrt)
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return 1;
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PUSH_W(cpu_state.pc);
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cpu_state.pc = new_pc;
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CPU_BLOCK_END();
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if (is486) {
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CLOCK_CYCLES(5);
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} else {
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CLOCK_CYCLES((cpu_mod == 3) ? 7 : 10);
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}
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PREFETCH_RUN((cpu_mod == 3) ? 7 : 10, 2, rmdat, (cpu_mod == 3) ? 0 : 1, 0, 1, 0, 1);
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PREFETCH_FLUSH();
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break;
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case 0x18: /*CALL far*/
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if (cpu_mod != 3) {
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SEG_CHECK_READ(cpu_state.ea_seg);
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if (cpu_state.abrt)
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return 1;
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CHECK_READ(cpu_state.ea_seg, cpu_state.eaaddr, cpu_state.eaaddr + 3UL);
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}
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new_pc = readmemw(easeg, cpu_state.eaaddr);
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new_cs = readmemw(easeg, (cpu_state.eaaddr + 2));
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if (cpu_state.abrt)
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return 1;
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CALL_FAR_w(new_cs, new_pc);
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CPU_BLOCK_END();
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PREFETCH_RUN(cycles_old - cycles, 2, rmdat, 2, 0, cgate16 ? 2 : 0, cgate16 ? 0 : 2, 1);
|
|
PREFETCH_FLUSH();
|
|
break;
|
|
case 0x20: /*JMP*/
|
|
if (cpu_mod != 3) {
|
|
SEG_CHECK_READ(cpu_state.ea_seg);
|
|
if (cpu_state.abrt)
|
|
return 1;
|
|
CHECK_READ(cpu_state.ea_seg, cpu_state.eaaddr, cpu_state.eaaddr + 1UL);
|
|
}
|
|
new_pc = geteaw();
|
|
if (cpu_state.abrt)
|
|
return 1;
|
|
cpu_state.pc = new_pc;
|
|
CPU_BLOCK_END();
|
|
if (is486) {
|
|
CLOCK_CYCLES(5);
|
|
} else {
|
|
CLOCK_CYCLES((cpu_mod == 3) ? 7 : 10);
|
|
}
|
|
PREFETCH_RUN(cycles_old - cycles, 2, rmdat, 1, 0, 0, 0, 1);
|
|
PREFETCH_FLUSH();
|
|
break;
|
|
case 0x28: /*JMP far*/
|
|
if (cpu_mod != 3) {
|
|
SEG_CHECK_READ(cpu_state.ea_seg);
|
|
if (cpu_state.abrt)
|
|
return 1;
|
|
CHECK_READ(cpu_state.ea_seg, cpu_state.eaaddr, cpu_state.eaaddr + 3UL);
|
|
}
|
|
#ifdef USE_NEW_DYNAREC
|
|
old_pc = cpu_state.pc;
|
|
#else
|
|
oxpc = cpu_state.pc;
|
|
#endif
|
|
new_pc = readmemw(easeg, cpu_state.eaaddr);
|
|
new_cs = readmemw(easeg, cpu_state.eaaddr + 2);
|
|
if (cpu_state.abrt)
|
|
return 1;
|
|
cpu_state.pc = new_pc;
|
|
#ifdef USE_NEW_DYNAREC
|
|
loadcsjmp(new_cs, old_pc);
|
|
if (cpu_state.abrt)
|
|
return 1;
|
|
#else
|
|
loadcsjmp(new_cs, oxpc);
|
|
if (cpu_state.abrt)
|
|
return 1;
|
|
#endif
|
|
CPU_BLOCK_END();
|
|
PREFETCH_RUN(cycles_old - cycles, 2, rmdat, 2, 0, 0, 0, 1);
|
|
PREFETCH_FLUSH();
|
|
break;
|
|
case 0x30: /*PUSH w*/
|
|
if (cpu_mod != 3) {
|
|
SEG_CHECK_READ(cpu_state.ea_seg);
|
|
if (cpu_state.abrt)
|
|
return 1;
|
|
CHECK_READ(cpu_state.ea_seg, cpu_state.eaaddr, cpu_state.eaaddr + 1UL);
|
|
}
|
|
temp = geteaw();
|
|
if (cpu_state.abrt)
|
|
return 1;
|
|
PUSH_W(temp);
|
|
CLOCK_CYCLES((cpu_mod == 3) ? 2 : 5);
|
|
PREFETCH_RUN((cpu_mod == 3) ? 2 : 5, 2, rmdat, (cpu_mod == 3) ? 0 : 1, 0, 1, 0, 1);
|
|
break;
|
|
|
|
default:
|
|
// fatal("Bad FF opcode %02X\n",rmdat&0x38);
|
|
x86illegal();
|
|
}
|
|
return cpu_state.abrt;
|
|
}
|
|
|
|
static int
|
|
opFF_l_a16(uint32_t fetchdat)
|
|
{
|
|
uint16_t old_cs;
|
|
uint16_t new_cs;
|
|
uint32_t old_pc;
|
|
uint32_t new_pc;
|
|
int cycles_old = cycles;
|
|
UN_USED(cycles_old);
|
|
|
|
uint32_t temp;
|
|
|
|
fetch_ea_16(fetchdat);
|
|
|
|
switch (rmdat & 0x38) {
|
|
case 0x00: /*INC l*/
|
|
if (cpu_mod != 3) {
|
|
SEG_CHECK_READ(cpu_state.ea_seg);
|
|
if (cpu_state.abrt)
|
|
return 1;
|
|
CHECK_READ(cpu_state.ea_seg, cpu_state.eaaddr, cpu_state.eaaddr + 3UL);
|
|
}
|
|
temp = geteal();
|
|
if (cpu_state.abrt)
|
|
return 1;
|
|
if (cpu_mod != 3) {
|
|
CHECK_WRITE(cpu_state.ea_seg, cpu_state.eaaddr, cpu_state.eaaddr + 3UL);
|
|
}
|
|
seteal(temp + 1);
|
|
if (cpu_state.abrt)
|
|
return 1;
|
|
setadd32nc(temp, 1);
|
|
CLOCK_CYCLES((cpu_mod == 3) ? timing_rr : timing_mm);
|
|
PREFETCH_RUN((cpu_mod == 3) ? timing_rr : timing_mm, 2, rmdat, 0, (cpu_mod == 3) ? 0 : 1, 0, (cpu_mod == 3) ? 0 : 1, 0);
|
|
break;
|
|
case 0x08: /*DEC l*/
|
|
if (cpu_mod != 3) {
|
|
SEG_CHECK_READ(cpu_state.ea_seg);
|
|
if (cpu_state.abrt)
|
|
return 1;
|
|
CHECK_READ(cpu_state.ea_seg, cpu_state.eaaddr, cpu_state.eaaddr + 3UL);
|
|
}
|
|
temp = geteal();
|
|
if (cpu_state.abrt)
|
|
return 1;
|
|
if (cpu_mod != 3) {
|
|
CHECK_WRITE(cpu_state.ea_seg, cpu_state.eaaddr, cpu_state.eaaddr + 3UL);
|
|
}
|
|
seteal(temp - 1);
|
|
if (cpu_state.abrt)
|
|
return 1;
|
|
setsub32nc(temp, 1);
|
|
CLOCK_CYCLES((cpu_mod == 3) ? timing_rr : timing_mm);
|
|
PREFETCH_RUN((cpu_mod == 3) ? timing_rr : timing_mm, 2, rmdat, 0, (cpu_mod == 3) ? 0 : 1, 0, (cpu_mod == 3) ? 0 : 1, 0);
|
|
break;
|
|
case 0x10: /*CALL*/
|
|
if (cpu_mod != 3) {
|
|
SEG_CHECK_READ(cpu_state.ea_seg);
|
|
if (cpu_state.abrt)
|
|
return 1;
|
|
CHECK_READ(cpu_state.ea_seg, cpu_state.eaaddr, cpu_state.eaaddr + 3UL);
|
|
}
|
|
new_pc = geteal();
|
|
if (cpu_state.abrt)
|
|
return 1;
|
|
PUSH_L(cpu_state.pc);
|
|
cpu_state.pc = new_pc;
|
|
CPU_BLOCK_END();
|
|
if (is486) {
|
|
CLOCK_CYCLES(5);
|
|
} else {
|
|
CLOCK_CYCLES((cpu_mod == 3) ? 7 : 10);
|
|
}
|
|
PREFETCH_RUN((cpu_mod == 3) ? 7 : 10, 2, rmdat, 0, (cpu_mod == 3) ? 0 : 1, 0, 1, 0);
|
|
PREFETCH_FLUSH();
|
|
break;
|
|
case 0x18: /*CALL far*/
|
|
if (cpu_mod != 3) {
|
|
SEG_CHECK_READ(cpu_state.ea_seg);
|
|
if (cpu_state.abrt)
|
|
return 1;
|
|
CHECK_READ(cpu_state.ea_seg, cpu_state.eaaddr, cpu_state.eaaddr + 5UL);
|
|
}
|
|
new_pc = readmeml(easeg, cpu_state.eaaddr);
|
|
new_cs = readmemw(easeg, (cpu_state.eaaddr + 4));
|
|
if (cpu_state.abrt)
|
|
return 1;
|
|
|
|
CALL_FAR_l(new_cs, new_pc);
|
|
CPU_BLOCK_END();
|
|
PREFETCH_RUN(cycles_old - cycles, 2, rmdat, 1, 1, cgate16 ? 2 : 0, cgate16 ? 0 : 2, 0);
|
|
PREFETCH_FLUSH();
|
|
break;
|
|
case 0x20: /*JMP*/
|
|
if (cpu_mod != 3) {
|
|
SEG_CHECK_READ(cpu_state.ea_seg);
|
|
if (cpu_state.abrt)
|
|
return 1;
|
|
CHECK_READ(cpu_state.ea_seg, cpu_state.eaaddr, cpu_state.eaaddr + 3UL);
|
|
}
|
|
new_pc = geteal();
|
|
if (cpu_state.abrt)
|
|
return 1;
|
|
cpu_state.pc = new_pc;
|
|
CPU_BLOCK_END();
|
|
if (is486) {
|
|
CLOCK_CYCLES(5);
|
|
} else {
|
|
CLOCK_CYCLES((cpu_mod == 3) ? 7 : 10);
|
|
}
|
|
PREFETCH_RUN(cycles_old - cycles, 2, rmdat, 0, 1, 0, 0, 0);
|
|
PREFETCH_FLUSH();
|
|
break;
|
|
case 0x28: /*JMP far*/
|
|
if (cpu_mod != 3) {
|
|
SEG_CHECK_READ(cpu_state.ea_seg);
|
|
if (cpu_state.abrt)
|
|
return 1;
|
|
CHECK_READ(cpu_state.ea_seg, cpu_state.eaaddr, cpu_state.eaaddr + 5UL);
|
|
}
|
|
#ifdef USE_NEW_DYNAREC
|
|
old_pc = cpu_state.pc;
|
|
#else
|
|
oxpc = cpu_state.pc;
|
|
#endif
|
|
new_pc = readmeml(easeg, cpu_state.eaaddr);
|
|
new_cs = readmemw(easeg, cpu_state.eaaddr + 4);
|
|
if (cpu_state.abrt)
|
|
return 1;
|
|
cpu_state.pc = new_pc;
|
|
#ifdef USE_NEW_DYNAREC
|
|
loadcsjmp(new_cs, old_pc);
|
|
if (cpu_state.abrt)
|
|
return 1;
|
|
#else
|
|
loadcsjmp(new_cs, oxpc);
|
|
if (cpu_state.abrt)
|
|
return 1;
|
|
#endif
|
|
CPU_BLOCK_END();
|
|
PREFETCH_RUN(cycles_old - cycles, 2, rmdat, 1, 1, 0, 0, 0);
|
|
PREFETCH_FLUSH();
|
|
break;
|
|
case 0x30: /*PUSH l*/
|
|
if (cpu_mod != 3) {
|
|
SEG_CHECK_READ(cpu_state.ea_seg);
|
|
if (cpu_state.abrt)
|
|
return 1;
|
|
CHECK_READ(cpu_state.ea_seg, cpu_state.eaaddr, cpu_state.eaaddr + 3UL);
|
|
}
|
|
temp = geteal();
|
|
if (cpu_state.abrt)
|
|
return 1;
|
|
PUSH_L(temp);
|
|
CLOCK_CYCLES((cpu_mod == 3) ? 2 : 5);
|
|
PREFETCH_RUN((cpu_mod == 3) ? 2 : 5, 2, rmdat, 0, (cpu_mod == 3) ? 0 : 1, 0, 1, 0);
|
|
break;
|
|
|
|
default:
|
|
// fatal("Bad FF opcode %02X\n",rmdat&0x38);
|
|
x86illegal();
|
|
}
|
|
return cpu_state.abrt;
|
|
}
|
|
static int
|
|
opFF_l_a32(uint32_t fetchdat)
|
|
{
|
|
uint16_t old_cs;
|
|
uint16_t new_cs;
|
|
uint32_t old_pc;
|
|
uint32_t new_pc;
|
|
int cycles_old = cycles;
|
|
UN_USED(cycles_old);
|
|
|
|
uint32_t temp;
|
|
|
|
fetch_ea_32(fetchdat);
|
|
|
|
switch (rmdat & 0x38) {
|
|
case 0x00: /*INC l*/
|
|
if (cpu_mod != 3) {
|
|
SEG_CHECK_READ(cpu_state.ea_seg);
|
|
if (cpu_state.abrt)
|
|
return 1;
|
|
CHECK_READ(cpu_state.ea_seg, cpu_state.eaaddr, cpu_state.eaaddr + 3UL);
|
|
}
|
|
temp = geteal();
|
|
if (cpu_state.abrt)
|
|
return 1;
|
|
if (cpu_mod != 3) {
|
|
CHECK_WRITE(cpu_state.ea_seg, cpu_state.eaaddr, cpu_state.eaaddr + 3UL);
|
|
}
|
|
seteal(temp + 1);
|
|
if (cpu_state.abrt)
|
|
return 1;
|
|
setadd32nc(temp, 1);
|
|
CLOCK_CYCLES((cpu_mod == 3) ? timing_rr : timing_mm);
|
|
PREFETCH_RUN((cpu_mod == 3) ? timing_rr : timing_mm, 2, rmdat, 0, (cpu_mod == 3) ? 0 : 1, 0, (cpu_mod == 3) ? 0 : 1, 1);
|
|
break;
|
|
case 0x08: /*DEC l*/
|
|
if (cpu_mod != 3) {
|
|
SEG_CHECK_READ(cpu_state.ea_seg);
|
|
if (cpu_state.abrt)
|
|
return 1;
|
|
CHECK_READ(cpu_state.ea_seg, cpu_state.eaaddr, cpu_state.eaaddr + 3UL);
|
|
}
|
|
temp = geteal();
|
|
if (cpu_state.abrt)
|
|
return 1;
|
|
if (cpu_mod != 3) {
|
|
CHECK_WRITE(cpu_state.ea_seg, cpu_state.eaaddr, cpu_state.eaaddr + 3UL);
|
|
}
|
|
seteal(temp - 1);
|
|
if (cpu_state.abrt)
|
|
return 1;
|
|
setsub32nc(temp, 1);
|
|
CLOCK_CYCLES((cpu_mod == 3) ? timing_rr : timing_mm);
|
|
PREFETCH_RUN((cpu_mod == 3) ? timing_rr : timing_mm, 2, rmdat, 0, (cpu_mod == 3) ? 0 : 1, 0, (cpu_mod == 3) ? 0 : 1, 1);
|
|
break;
|
|
case 0x10: /*CALL*/
|
|
if (cpu_mod != 3) {
|
|
SEG_CHECK_READ(cpu_state.ea_seg);
|
|
if (cpu_state.abrt)
|
|
return 1;
|
|
CHECK_READ(cpu_state.ea_seg, cpu_state.eaaddr, cpu_state.eaaddr + 3UL);
|
|
}
|
|
new_pc = geteal();
|
|
if (cpu_state.abrt)
|
|
return 1;
|
|
PUSH_L(cpu_state.pc);
|
|
if (cpu_state.abrt)
|
|
return 1;
|
|
cpu_state.pc = new_pc;
|
|
CPU_BLOCK_END();
|
|
if (is486) {
|
|
CLOCK_CYCLES(5);
|
|
} else {
|
|
CLOCK_CYCLES((cpu_mod == 3) ? 7 : 10);
|
|
}
|
|
PREFETCH_RUN((cpu_mod == 3) ? 7 : 10, 2, rmdat, 0, (cpu_mod == 3) ? 0 : 1, 0, 1, 1);
|
|
PREFETCH_FLUSH();
|
|
break;
|
|
case 0x18: /*CALL far*/
|
|
if (cpu_mod != 3) {
|
|
SEG_CHECK_READ(cpu_state.ea_seg);
|
|
if (cpu_state.abrt)
|
|
return 1;
|
|
CHECK_READ(cpu_state.ea_seg, cpu_state.eaaddr, cpu_state.eaaddr + 5UL);
|
|
}
|
|
new_pc = readmeml(easeg, cpu_state.eaaddr);
|
|
new_cs = readmemw(easeg, (cpu_state.eaaddr + 4));
|
|
if (cpu_state.abrt)
|
|
return 1;
|
|
|
|
CALL_FAR_l(new_cs, new_pc);
|
|
CPU_BLOCK_END();
|
|
PREFETCH_RUN(cycles_old - cycles, 2, rmdat, 1, 1, cgate16 ? 2 : 0, cgate16 ? 0 : 2, 1);
|
|
PREFETCH_FLUSH();
|
|
break;
|
|
case 0x20: /*JMP*/
|
|
if (cpu_mod != 3) {
|
|
SEG_CHECK_READ(cpu_state.ea_seg);
|
|
if (cpu_state.abrt)
|
|
return 1;
|
|
CHECK_READ(cpu_state.ea_seg, cpu_state.eaaddr, cpu_state.eaaddr + 3UL);
|
|
}
|
|
new_pc = geteal();
|
|
if (cpu_state.abrt)
|
|
return 1;
|
|
cpu_state.pc = new_pc;
|
|
CPU_BLOCK_END();
|
|
if (is486) {
|
|
CLOCK_CYCLES(5);
|
|
} else {
|
|
CLOCK_CYCLES((cpu_mod == 3) ? 7 : 10);
|
|
}
|
|
PREFETCH_RUN(cycles_old - cycles, 2, rmdat, 1, 1, 0, 0, 1);
|
|
PREFETCH_FLUSH();
|
|
break;
|
|
case 0x28: /*JMP far*/
|
|
if (cpu_mod != 3) {
|
|
SEG_CHECK_READ(cpu_state.ea_seg);
|
|
if (cpu_state.abrt)
|
|
return 1;
|
|
CHECK_READ(cpu_state.ea_seg, cpu_state.eaaddr, cpu_state.eaaddr + 5UL);
|
|
}
|
|
#ifdef USE_NEW_DYNAREC
|
|
old_pc = cpu_state.pc;
|
|
#else
|
|
oxpc = cpu_state.pc;
|
|
#endif
|
|
new_pc = readmeml(easeg, cpu_state.eaaddr);
|
|
new_cs = readmemw(easeg, cpu_state.eaaddr + 4);
|
|
if (cpu_state.abrt)
|
|
return 1;
|
|
cpu_state.pc = new_pc;
|
|
#ifdef USE_NEW_DYNAREC
|
|
loadcsjmp(new_cs, old_pc);
|
|
if (cpu_state.abrt)
|
|
return 1;
|
|
#else
|
|
loadcsjmp(new_cs, oxpc);
|
|
if (cpu_state.abrt)
|
|
return 1;
|
|
#endif
|
|
CPU_BLOCK_END();
|
|
PREFETCH_RUN(cycles_old - cycles, 2, rmdat, 1, 1, 0, 0, 1);
|
|
PREFETCH_FLUSH();
|
|
break;
|
|
case 0x30: /*PUSH l*/
|
|
if (cpu_mod != 3) {
|
|
SEG_CHECK_READ(cpu_state.ea_seg);
|
|
if (cpu_state.abrt)
|
|
return 1;
|
|
CHECK_READ(cpu_state.ea_seg, cpu_state.eaaddr, cpu_state.eaaddr + 3UL);
|
|
}
|
|
temp = geteal();
|
|
if (cpu_state.abrt)
|
|
return 1;
|
|
PUSH_L(temp);
|
|
PREFETCH_RUN((cpu_mod == 3) ? 2 : 5, 2, rmdat, 0, (cpu_mod == 3) ? 0 : 1, 0, 1, 1);
|
|
break;
|
|
|
|
default:
|
|
// fatal("Bad FF opcode %02X\n",rmdat&0x38);
|
|
x86illegal();
|
|
}
|
|
return cpu_state.abrt;
|
|
}
|