pcem/includes/private/cpu/x86_ops_mmx_mov.h

#ifndef _X86_OPS_MMX_MOV_H_
#define _X86_OPS_MMX_MOV_H_
static int opMOVD_l_mm_a16(uint32_t fetchdat) {
        MMX_ENTER();

        fetch_ea_16(fetchdat);
        if (cpu_mod == 3) {
                cpu_state.MM[cpu_reg].l[0] = cpu_state.regs[cpu_rm].l;
                cpu_state.MM[cpu_reg].l[1] = 0;
                CLOCK_CYCLES(1);
        } else {
                uint32_t dst;

                SEG_CHECK_READ(cpu_state.ea_seg);
                dst = readmeml(easeg, cpu_state.eaaddr);
                if (cpu_state.abrt)
                        return 1;
                cpu_state.MM[cpu_reg].l[0] = dst;
                cpu_state.MM[cpu_reg].l[1] = 0;

                CLOCK_CYCLES(2);
        }
        return 0;
}
static int opMOVD_l_mm_a32(uint32_t fetchdat) {
        MMX_ENTER();

        fetch_ea_32(fetchdat);
        if (cpu_mod == 3) {
                cpu_state.MM[cpu_reg].l[0] = cpu_state.regs[cpu_rm].l;
                cpu_state.MM[cpu_reg].l[1] = 0;
                CLOCK_CYCLES(1);
        } else {
                uint32_t dst;

                SEG_CHECK_READ(cpu_state.ea_seg);
                dst = readmeml(easeg, cpu_state.eaaddr);
                if (cpu_state.abrt)
                        return 1;
                cpu_state.MM[cpu_reg].l[0] = dst;
                cpu_state.MM[cpu_reg].l[1] = 0;

                CLOCK_CYCLES(2);
        }
        return 0;
}

static int opMOVD_mm_l_a16(uint32_t fetchdat) {
        MMX_ENTER();

        fetch_ea_16(fetchdat);
        if (cpu_mod == 3) {
                cpu_state.regs[cpu_rm].l = cpu_state.MM[cpu_reg].l[0];
                CLOCK_CYCLES(1);
        } else {
                SEG_CHECK_WRITE(cpu_state.ea_seg);
                CHECK_WRITE(cpu_state.ea_seg, cpu_state.eaaddr, cpu_state.eaaddr + 3);
                writememl(easeg, cpu_state.eaaddr, cpu_state.MM[cpu_reg].l[0]);
                if (cpu_state.abrt)
                        return 1;
                CLOCK_CYCLES(2);
        }
        return 0;
}
static int opMOVD_mm_l_a32(uint32_t fetchdat) {
        MMX_ENTER();

        fetch_ea_32(fetchdat);
        if (cpu_mod == 3) {
                cpu_state.regs[cpu_rm].l = cpu_state.MM[cpu_reg].l[0];
                CLOCK_CYCLES(1);
        } else {
                SEG_CHECK_WRITE(cpu_state.ea_seg);
                CHECK_WRITE(cpu_state.ea_seg, cpu_state.eaaddr, cpu_state.eaaddr + 3);
                writememl(easeg, cpu_state.eaaddr, cpu_state.MM[cpu_reg].l[0]);
                if (cpu_state.abrt)
                        return 1;
                CLOCK_CYCLES(2);
        }
        return 0;
}

/*Cyrix maps both MOVD and SMINT to the same opcode*/
static int opMOVD_mm_l_a16_cx(uint32_t fetchdat) {
        if (cpu_cur_status & CPU_STATUS_SMM)
                return opSMINT(fetchdat);

        MMX_ENTER();

        fetch_ea_16(fetchdat);
        if (cpu_mod == 3) {
                cpu_state.regs[cpu_rm].l = cpu_state.MM[cpu_reg].l[0];
                CLOCK_CYCLES(1);
        } else {
                SEG_CHECK_WRITE(cpu_state.ea_seg);
                CHECK_WRITE(cpu_state.ea_seg, cpu_state.eaaddr, cpu_state.eaaddr + 3);
                writememl(easeg, cpu_state.eaaddr, cpu_state.MM[cpu_reg].l[0]);
                if (cpu_state.abrt)
                        return 1;
                CLOCK_CYCLES(2);
        }
        return 0;
}
static int opMOVD_mm_l_a32_cx(uint32_t fetchdat) {
        if (cpu_cur_status & CPU_STATUS_SMM)
                return opSMINT(fetchdat);

        MMX_ENTER();

        fetch_ea_32(fetchdat);
        if (cpu_mod == 3) {
                cpu_state.regs[cpu_rm].l = cpu_state.MM[cpu_reg].l[0];
                CLOCK_CYCLES(1);
        } else {
                SEG_CHECK_WRITE(cpu_state.ea_seg);
                CHECK_WRITE(cpu_state.ea_seg, cpu_state.eaaddr, cpu_state.eaaddr + 3);
                writememl(easeg, cpu_state.eaaddr, cpu_state.MM[cpu_reg].l[0]);
                if (cpu_state.abrt)
                        return 1;
                CLOCK_CYCLES(2);
        }
        return 0;
}

static int opMOVQ_q_mm_a16(uint32_t fetchdat) {
        MMX_ENTER();

        fetch_ea_16(fetchdat);
        if (cpu_mod == 3) {
                cpu_state.MM[cpu_reg].q = cpu_state.MM[cpu_rm].q;
                CLOCK_CYCLES(1);
        } else {
                uint64_t dst;

                SEG_CHECK_READ(cpu_state.ea_seg);
                dst = readmemq(easeg, cpu_state.eaaddr);
                if (cpu_state.abrt)
                        return 1;
                cpu_state.MM[cpu_reg].q = dst;
                CLOCK_CYCLES(2);
        }
        return 0;
}
static int opMOVQ_q_mm_a32(uint32_t fetchdat) {
        MMX_ENTER();

        fetch_ea_32(fetchdat);
        if (cpu_mod == 3) {
                cpu_state.MM[cpu_reg].q = cpu_state.MM[cpu_rm].q;
                CLOCK_CYCLES(1);
        } else {
                uint64_t dst;

                SEG_CHECK_READ(cpu_state.ea_seg);
                dst = readmemq(easeg, cpu_state.eaaddr);
                if (cpu_state.abrt)
                        return 1;
                cpu_state.MM[cpu_reg].q = dst;
                CLOCK_CYCLES(2);
        }
        return 0;
}

static int opMOVQ_mm_q_a16(uint32_t fetchdat) {
        MMX_ENTER();

        fetch_ea_16(fetchdat);
        if (cpu_mod == 3) {
                cpu_state.MM[cpu_rm].q = cpu_state.MM[cpu_reg].q;
                CLOCK_CYCLES(1);
        } else {
                SEG_CHECK_WRITE(cpu_state.ea_seg);
                CHECK_WRITE(cpu_state.ea_seg, cpu_state.eaaddr, cpu_state.eaaddr + 7);
                writememq(easeg, cpu_state.eaaddr, cpu_state.MM[cpu_reg].q);
                if (cpu_state.abrt)
                        return 1;
                CLOCK_CYCLES(2);
        }
        return 0;
}
static int opMOVQ_mm_q_a32(uint32_t fetchdat) {
        MMX_ENTER();

        fetch_ea_32(fetchdat);
        if (cpu_mod == 3) {
                cpu_state.MM[cpu_rm].q = cpu_state.MM[cpu_reg].q;
                CLOCK_CYCLES(1);
        } else {
                SEG_CHECK_WRITE(cpu_state.ea_seg);
                CHECK_WRITE(cpu_state.ea_seg, cpu_state.eaaddr, cpu_state.eaaddr + 7);
                writememq(easeg, cpu_state.eaaddr, cpu_state.MM[cpu_reg].q);
                if (cpu_state.abrt)
                        return 1;
                CLOCK_CYCLES(2);
        }
        return 0;
}

#endif /* _X86_OPS_MMX_MOV_H_ */