view m68k_to_x86.c @ 103:a71544cd01ea

Don't pre-emptively translate code at interrupt vectors as some PD ROMs have these pointing at junk. Need some kind of heuristic for detecting garbage if I'm going to translate them ahead of time by default.
author Mike Pavone <pavone@retrodev.com>
date Thu, 27 Dec 2012 22:48:54 -0800
parents bfaca67eeb78
children a0fdaa134964
line wrap: on
line source

#include "gen_x86.h"
#include "m68k_to_x86.h"
#include "mem.h"
#include <stdio.h>
#include <stddef.h>
#include <stdlib.h>
#include <string.h>

#define BUS 4
#define PREDEC_PENALTY 2
#define CYCLES RAX
#define LIMIT RBP
#define SCRATCH1 RCX
#define SCRATCH2 RDI
#define CONTEXT RSI

#define FLAG_N RBX
#define FLAG_V BH
#define FLAG_Z RDX
#define FLAG_C DH

typedef struct {
	int32_t disp;
	uint8_t mode;
	uint8_t base;
	uint8_t index;
	uint8_t cycles;
} x86_ea;

void handle_cycle_limit_int();
void m68k_read_word_scratch1();
void m68k_read_long_scratch1();
void m68k_read_byte_scratch1();
void m68k_write_word();
void m68k_write_long_lowfirst();
void m68k_write_long_highfirst();
void m68k_write_byte();
void m68k_save_context();
void m68k_modified_ret_addr();
void m68k_native_addr();
void m68k_native_addr_and_sync();
void set_sr();
void set_ccr();
void get_sr();
void m68k_start_context(uint8_t * addr, m68k_context * context);

uint8_t * cycles(uint8_t * dst, uint32_t num)
{
	dst = add_ir(dst, num, CYCLES, SZ_D);
}

uint8_t * check_cycles_int(uint8_t * dst, uint32_t address)
{
	dst = cmp_rr(dst, CYCLES, LIMIT, SZ_D);
	uint8_t * jmp_off = dst+1;
	dst = jcc(dst, CC_NC, dst + 7);
	dst = mov_ir(dst, address, SCRATCH1, SZ_D);
	dst = call(dst, (uint8_t *)handle_cycle_limit_int);
	*jmp_off = dst - (jmp_off+1);
	return dst;
}

int8_t native_reg(m68k_op_info * op, x86_68k_options * opts)
{
	if (op->addr_mode == MODE_REG) {
		return opts->dregs[op->params.regs.pri];
	}
	if (op->addr_mode == MODE_AREG) {
		return opts->aregs[op->params.regs.pri];
	}
	return -1;
}

//must be called with an m68k_op_info that uses a register
size_t reg_offset(m68k_op_info *op)
{
	if (op->addr_mode == MODE_REG) {
		return offsetof(m68k_context, dregs) + sizeof(uint32_t) * op->params.regs.pri;
	}
	return offsetof(m68k_context, aregs) + sizeof(uint32_t) * op->params.regs.pri;
}

void print_regs_exit(m68k_context * context)
{
	printf("XNVZC\n%d%d%d%d%d\n", context->flags[0], context->flags[1], context->flags[2], context->flags[3], context->flags[4]);
	for (int i = 0; i < 8; i++) {
		printf("d%d: %X\n", i, context->dregs[i]);
	}
	for (int i = 0; i < 8; i++) {
		printf("a%d: %X\n", i, context->aregs[i]);
	}
	exit(0);
}

uint8_t * translate_m68k_src(m68kinst * inst, x86_ea * ea, uint8_t * out, x86_68k_options * opts)
{
	int8_t reg = native_reg(&(inst->src), opts);
	uint8_t sec_reg;
	int32_t dec_amount,inc_amount;
	if (reg >= 0) {
		ea->mode = MODE_REG_DIRECT;
		ea->base = reg;
		return out;
	}
	switch (inst->src.addr_mode)
	{
	case MODE_REG:
	case MODE_AREG:
		//We only get one memory parameter, so if the dst operand is a register in memory,
		//we need to copy this to a temp register first
		reg = native_reg(&(inst->dst), opts);
		if (reg >= 0 || inst->dst.addr_mode == MODE_UNUSED || (inst->dst.addr_mode != MODE_REG && inst->dst.addr_mode == MODE_AREG) 
		    || inst->op == M68K_EXG) {
			
			ea->mode = MODE_REG_DISPLACE8;
			ea->base = CONTEXT;
			ea->disp = reg_offset(&(inst->src));
		} else {
			out = mov_rdisp8r(out, CONTEXT, reg_offset(&(inst->src)), SCRATCH1, inst->extra.size);
			ea->mode = MODE_REG_DIRECT;
			ea->base = SCRATCH1;
		}
		break;
	case MODE_AREG_PREDEC:
		dec_amount = inst->extra.size == OPSIZE_WORD ? 2 : (inst->extra.size == OPSIZE_LONG ? 4 : 1);
		out = cycles(out, PREDEC_PENALTY);
		if (opts->aregs[inst->src.params.regs.pri] >= 0) {
			out = sub_ir(out, inc_amount, opts->aregs[inst->src.params.regs.pri], SZ_D);
		} else {
			out = sub_irdisp8(out, inc_amount, CONTEXT, reg_offset(&(inst->src)), SZ_D);
		}
	case MODE_AREG_INDIRECT:
	case MODE_AREG_POSTINC:	
		if (opts->aregs[inst->src.params.regs.pri] >= 0) {
			out = mov_rr(out, opts->aregs[inst->src.params.regs.pri], SCRATCH1, SZ_D);
		} else {
			out = mov_rdisp8r(out, CONTEXT,  reg_offset(&(inst->src)), SCRATCH1, SZ_D);
		}
		switch (inst->extra.size)
		{
		case OPSIZE_BYTE:
			out = call(out, (char *)m68k_read_byte_scratch1);
			break;
		case OPSIZE_WORD:
			out = call(out, (char *)m68k_read_word_scratch1);
			break;
		case OPSIZE_LONG:
			out = call(out, (char *)m68k_read_long_scratch1);
			break;
		}
		
		if (inst->src.addr_mode == MODE_AREG_POSTINC) {
			inc_amount = inst->extra.size == OPSIZE_WORD ? 2 : (inst->extra.size == OPSIZE_LONG ? 4 : 1);
			if (opts->aregs[inst->src.params.regs.pri] >= 0) {
				out = add_ir(out, inc_amount, opts->aregs[inst->src.params.regs.pri], SZ_D);
			} else {
				out = add_irdisp8(out, inc_amount, CONTEXT, reg_offset(&(inst->src)), SZ_D);
			}
		}
		ea->mode = MODE_REG_DIRECT;
		ea->base = SCRATCH1;
		break;
	case MODE_AREG_DISPLACE:
		out = cycles(out, BUS);
		if (opts->aregs[inst->src.params.regs.pri] >= 0) {
			out = mov_rr(out, opts->aregs[inst->src.params.regs.pri], SCRATCH1, SZ_D);
		} else {
			out = mov_rdisp8r(out, CONTEXT,  reg_offset(&(inst->src)), SCRATCH1, SZ_D);
		}
		out = add_ir(out, inst->src.params.regs.displacement, SCRATCH1, SZ_D);
		switch (inst->extra.size)
		{
		case OPSIZE_BYTE:
			out = call(out, (char *)m68k_read_byte_scratch1);
			break;
		case OPSIZE_WORD:
			out = call(out, (char *)m68k_read_word_scratch1);
			break;
		case OPSIZE_LONG:
			out = call(out, (char *)m68k_read_long_scratch1);
			break;
		}
		ea->mode = MODE_REG_DIRECT;
		ea->base = SCRATCH1;
		break;
	case MODE_AREG_INDEX_DISP8:
		out = cycles(out, 6);
		if (opts->aregs[inst->src.params.regs.pri] >= 0) {
			out = mov_rr(out, opts->aregs[inst->src.params.regs.pri], SCRATCH1, SZ_D);
		} else {
			out = mov_rdisp8r(out, CONTEXT,  reg_offset(&(inst->src)), SCRATCH1, SZ_D);
		}
		sec_reg = (inst->src.params.regs.sec >> 1) & 0x7;
		if (inst->src.params.regs.sec & 1) {
			if (inst->src.params.regs.sec & 0x10) {
				if (opts->aregs[sec_reg] >= 0) {
					out = add_rr(out, opts->aregs[sec_reg], SCRATCH1, SZ_D);
				} else {
					out = add_rdisp8r(out, CONTEXT, offsetof(m68k_context, aregs) + sizeof(uint32_t)*sec_reg, SCRATCH1, SZ_D);
				}
			} else {
				if (opts->dregs[sec_reg] >= 0) {
					out = add_rr(out, opts->dregs[sec_reg], SCRATCH1, SZ_D);
				} else {
					out = add_rdisp8r(out, CONTEXT, offsetof(m68k_context, dregs) + sizeof(uint32_t)*sec_reg, SCRATCH1, SZ_D);
				}
			}
		} else {
			if (inst->src.params.regs.sec & 0x10) {
				if (opts->aregs[sec_reg] >= 0) {
					out = movsx_rr(out, opts->aregs[sec_reg], SCRATCH2, SZ_W, SZ_D);
				} else {
					out = movsx_rdisp8r(out, CONTEXT, offsetof(m68k_context, aregs) + sizeof(uint32_t)*sec_reg, SCRATCH2, SZ_W, SZ_D);
				}
			} else {
				if (opts->dregs[sec_reg] >= 0) {
					out = movsx_rr(out, opts->dregs[sec_reg], SCRATCH2, SZ_W, SZ_D);
				} else {
					out = movsx_rdisp8r(out, CONTEXT, offsetof(m68k_context, dregs) + sizeof(uint32_t)*sec_reg, SCRATCH2, SZ_W, SZ_D);
				}
			}
			out = add_rr(out, SCRATCH2, SCRATCH1, SZ_D);
		}
		if (inst->src.params.regs.displacement) {
			out = add_ir(out, inst->src.params.regs.displacement, SCRATCH1, SZ_D);
		}
		switch (inst->extra.size)
		{
		case OPSIZE_BYTE:
			out = call(out, (char *)m68k_read_byte_scratch1);
			break;
		case OPSIZE_WORD:
			out = call(out, (char *)m68k_read_word_scratch1);
			break;
		case OPSIZE_LONG:
			out = call(out, (char *)m68k_read_long_scratch1);
			break;
		}
		ea->mode = MODE_REG_DIRECT;
		ea->base = SCRATCH1;
		break;
	case MODE_PC_DISPLACE:
		out = cycles(out, BUS);
		out = mov_ir(out, inst->src.params.regs.displacement + inst->address+2, SCRATCH1, SZ_D);
		switch (inst->extra.size)
		{
		case OPSIZE_BYTE:
			out = call(out, (char *)m68k_read_byte_scratch1);
			break;
		case OPSIZE_WORD:
			out = call(out, (char *)m68k_read_word_scratch1);
			break;
		case OPSIZE_LONG:
			out = call(out, (char *)m68k_read_long_scratch1);
			break;
		}
		ea->mode = MODE_REG_DIRECT;
		ea->base = SCRATCH1;
		break;
	case MODE_PC_INDEX_DISP8:
		out = cycles(out, 6);
		out = mov_ir(out, inst->address+2, SCRATCH1, SZ_D);
		sec_reg = (inst->src.params.regs.sec >> 1) & 0x7;
		if (inst->src.params.regs.sec & 1) {
			if (inst->src.params.regs.sec & 0x10) {
				if (opts->aregs[sec_reg] >= 0) {
					out = add_rr(out, opts->aregs[sec_reg], SCRATCH1, SZ_D);
				} else {
					out = add_rdisp8r(out, CONTEXT, offsetof(m68k_context, aregs) + sizeof(uint32_t)*sec_reg, SCRATCH1, SZ_D);
				}
			} else {
				if (opts->dregs[sec_reg] >= 0) {
					out = add_rr(out, opts->dregs[sec_reg], SCRATCH1, SZ_D);
				} else {
					out = add_rdisp8r(out, CONTEXT, offsetof(m68k_context, dregs) + sizeof(uint32_t)*sec_reg, SCRATCH1, SZ_D);
				}
			}
		} else {
			if (inst->src.params.regs.sec & 0x10) {
				if (opts->aregs[sec_reg] >= 0) {
					out = movsx_rr(out, opts->aregs[sec_reg], SCRATCH2, SZ_W, SZ_D);
				} else {
					out = movsx_rdisp8r(out, CONTEXT, offsetof(m68k_context, aregs) + sizeof(uint32_t)*sec_reg, SCRATCH2, SZ_W, SZ_D);
				}
			} else {
				if (opts->dregs[sec_reg] >= 0) {
					out = movsx_rr(out, opts->dregs[sec_reg], SCRATCH2, SZ_W, SZ_D);
				} else {
					out = movsx_rdisp8r(out, CONTEXT, offsetof(m68k_context, dregs) + sizeof(uint32_t)*sec_reg, SCRATCH2, SZ_W, SZ_D);
				}
			}
			out = add_rr(out, SCRATCH2, SCRATCH1, SZ_D);
		}
		if (inst->src.params.regs.displacement) {
			out = add_ir(out, inst->src.params.regs.displacement, SCRATCH1, SZ_D);
		}
		switch (inst->extra.size)
		{
		case OPSIZE_BYTE:
			out = call(out, (char *)m68k_read_byte_scratch1);
			break;
		case OPSIZE_WORD:
			out = call(out, (char *)m68k_read_word_scratch1);
			break;
		case OPSIZE_LONG:
			out = call(out, (char *)m68k_read_long_scratch1);
			break;
		}
		ea->mode = MODE_REG_DIRECT;
		ea->base = SCRATCH1;
		break;
	case MODE_ABSOLUTE:
	case MODE_ABSOLUTE_SHORT:
		if (inst->src.addr_mode == MODE_ABSOLUTE) {
			out = cycles(out, BUS*2);
		} else {
			out = cycles(out, BUS);
		}
		out = mov_ir(out, inst->src.params.immed, SCRATCH1, SZ_D);
		switch (inst->extra.size)
		{
		case OPSIZE_BYTE:
			out = call(out, (char *)m68k_read_byte_scratch1);
			break;
		case OPSIZE_WORD:
			out = call(out, (char *)m68k_read_word_scratch1);
			break;
		case OPSIZE_LONG:
			out = call(out, (char *)m68k_read_long_scratch1);
			break;
		}
		ea->mode = MODE_REG_DIRECT;
		ea->base = SCRATCH1;
		break;
	case MODE_IMMEDIATE:
	case MODE_IMMEDIATE_WORD:
		if (inst->variant != VAR_QUICK) {
			out = cycles(out, (inst->extra.size == OPSIZE_LONG && inst->src.addr_mode == MODE_IMMEDIATE) ? BUS*2 : BUS);
		}
		ea->mode = MODE_IMMED;
		ea->disp = inst->src.params.immed;
		break;
	default:
		printf("address mode %d not implemented (src)\n", inst->src.addr_mode);
		exit(1);
	}
	return out;
}

uint8_t * translate_m68k_dst(m68kinst * inst, x86_ea * ea, uint8_t * out, x86_68k_options * opts, uint8_t fake_read)
{
	int8_t reg = native_reg(&(inst->dst), opts), sec_reg;
	int32_t dec_amount, inc_amount;
	if (reg >= 0) {
		ea->mode = MODE_REG_DIRECT;
		ea->base = reg;
		return out;
	}
	switch (inst->dst.addr_mode)
	{
	case MODE_REG:
	case MODE_AREG:
		ea->mode = MODE_REG_DISPLACE8;
		ea->base = CONTEXT;
		ea->disp = reg_offset(&(inst->dst));
		break;
	case MODE_AREG_PREDEC:
		dec_amount = inst->extra.size == OPSIZE_WORD ? 2 : (inst->extra.size == OPSIZE_LONG ? 4 : 1);
		if (opts->aregs[inst->dst.params.regs.pri] >= 0) {
			out = sub_ir(out, dec_amount, opts->aregs[inst->dst.params.regs.pri], SZ_D);
		} else {
			out = sub_irdisp8(out, dec_amount, CONTEXT, reg_offset(&(inst->dst)), SZ_D);
		}
	case MODE_AREG_INDIRECT:
	case MODE_AREG_POSTINC:
		if (fake_read) {
			out = cycles(out, inst->extra.size == OPSIZE_LONG ? 8 : 4);
		} else {
			if (opts->aregs[inst->dst.params.regs.pri] >= 0) {
				out = mov_rr(out, opts->aregs[inst->dst.params.regs.pri], SCRATCH1, SZ_D);
			} else {
				out = mov_rdisp8r(out, CONTEXT, reg_offset(&(inst->dst)), SCRATCH1, SZ_D);
			}
			switch (inst->extra.size)
			{
			case OPSIZE_BYTE:
				out = call(out, (char *)m68k_read_byte_scratch1);
				break;
			case OPSIZE_WORD:
				out = call(out, (char *)m68k_read_word_scratch1);
				break;
			case OPSIZE_LONG:
				out = call(out, (char *)m68k_read_long_scratch1);
				break;
			}
		}
		//save reg value in SCRATCH2 so we can use it to save the result in memory later
		if (opts->aregs[inst->dst.params.regs.pri] >= 0) {
			out = mov_rr(out, opts->aregs[inst->dst.params.regs.pri], SCRATCH2, SZ_D);
		} else {
			out = mov_rdisp8r(out, CONTEXT, reg_offset(&(inst->dst)), SCRATCH2, SZ_D);
		}
		
		if (inst->dst.addr_mode == MODE_AREG_POSTINC) {
			inc_amount = inst->extra.size == OPSIZE_WORD ? 2 : (inst->extra.size == OPSIZE_LONG ? 4 : 1);
			if (opts->aregs[inst->dst.params.regs.pri] >= 0) {
				out = add_ir(out, inc_amount, opts->aregs[inst->dst.params.regs.pri], SZ_D);
			} else {
				out = add_irdisp8(out, inc_amount, CONTEXT, reg_offset(&(inst->dst)), SZ_D);
			}
		}
		ea->mode = MODE_REG_DIRECT;
		ea->base = SCRATCH1;
		break;
	case MODE_AREG_DISPLACE:
		out = cycles(out, fake_read ? BUS+(inst->extra.size == OPSIZE_LONG ? BUS*2 : BUS) : BUS);
		reg = fake_read ? SCRATCH2 : SCRATCH1;
		if (opts->aregs[inst->dst.params.regs.pri] >= 0) {
			out = mov_rr(out, opts->aregs[inst->dst.params.regs.pri], reg, SZ_D);
		} else {
			out = mov_rdisp8r(out, CONTEXT,  reg_offset(&(inst->dst)), reg, SZ_D);
		}
		out = add_ir(out, inst->dst.params.regs.displacement, reg, SZ_D);
		if (!fake_read) {
			out = push_r(out, SCRATCH1);
			switch (inst->extra.size)
			{
			case OPSIZE_BYTE:
				out = call(out, (char *)m68k_read_byte_scratch1);
				break;
			case OPSIZE_WORD:
				out = call(out, (char *)m68k_read_word_scratch1);
				break;
			case OPSIZE_LONG:
				out = call(out, (char *)m68k_read_long_scratch1);
				break;
			}
			out = pop_r(out, SCRATCH2);
		}
		ea->mode = MODE_REG_DIRECT;
		ea->base = SCRATCH1;
		break;
	case MODE_AREG_INDEX_DISP8:
		out = cycles(out, fake_read ? (6 + inst->extra.size == OPSIZE_LONG ? 8 : 4) : 6);
		if (opts->aregs[inst->dst.params.regs.pri] >= 0) {
			out = mov_rr(out, opts->aregs[inst->dst.params.regs.pri], SCRATCH1, SZ_D);
		} else {
			out = mov_rdisp8r(out, CONTEXT,  reg_offset(&(inst->dst)), SCRATCH1, SZ_D);
		}
		sec_reg = (inst->dst.params.regs.sec >> 1) & 0x7;
		if (inst->dst.params.regs.sec & 1) {
			if (inst->dst.params.regs.sec & 0x10) {
				if (opts->aregs[sec_reg] >= 0) {
					out = add_rr(out, opts->aregs[sec_reg], SCRATCH1, SZ_D);
				} else {
					out = add_rdisp8r(out, CONTEXT, offsetof(m68k_context, aregs) + sizeof(uint32_t)*sec_reg, SCRATCH1, SZ_D);
				}
			} else {
				if (opts->dregs[sec_reg] >= 0) {
					out = add_rr(out, opts->dregs[sec_reg], SCRATCH1, SZ_D);
				} else {
					out = add_rdisp8r(out, CONTEXT, offsetof(m68k_context, dregs) + sizeof(uint32_t)*sec_reg, SCRATCH1, SZ_D);
				}
			}
		} else {
			if (inst->dst.params.regs.sec & 0x10) {
				if (opts->aregs[sec_reg] >= 0) {
					out = movsx_rr(out, opts->aregs[sec_reg], SCRATCH2, SZ_W, SZ_D);
				} else {
					out = movsx_rdisp8r(out, CONTEXT, offsetof(m68k_context, aregs) + sizeof(uint32_t)*sec_reg, SCRATCH2, SZ_W, SZ_D);
				}
			} else {
				if (opts->dregs[sec_reg] >= 0) {
					out = movsx_rr(out, opts->dregs[sec_reg], SCRATCH2, SZ_W, SZ_D);
				} else {
					out = movsx_rdisp8r(out, CONTEXT, offsetof(m68k_context, dregs) + sizeof(uint32_t)*sec_reg, SCRATCH2, SZ_W, SZ_D);
				}
			}
			out = add_rr(out, SCRATCH2, SCRATCH1, SZ_D);
		}
		if (inst->dst.params.regs.displacement) {
			out = add_ir(out, inst->dst.params.regs.displacement, SCRATCH1, SZ_D);
		}
		if (fake_read) {
			out = mov_rr(out, SCRATCH1, SCRATCH2, SZ_D);
		} else {
			out = push_r(out, SCRATCH1);
			switch (inst->extra.size)
			{
			case OPSIZE_BYTE:
				out = call(out, (char *)m68k_read_byte_scratch1);
				break;
			case OPSIZE_WORD:
				out = call(out, (char *)m68k_read_word_scratch1);
				break;
			case OPSIZE_LONG:
				out = call(out, (char *)m68k_read_long_scratch1);
				break;
			}
			out = pop_r(out, SCRATCH2);
		}
		ea->mode = MODE_REG_DIRECT;
		ea->base = SCRATCH1;
	case MODE_PC_DISPLACE:
		out = cycles(out, fake_read ? BUS+(inst->extra.size == OPSIZE_LONG ? BUS*2 : BUS) : BUS);
		out = mov_ir(out, inst->dst.params.regs.displacement + inst->address+2, fake_read ? SCRATCH2 : SCRATCH1, SZ_D);
		if (!fake_read) {
			out = push_r(out, SCRATCH1);
			switch (inst->extra.size)
			{
			case OPSIZE_BYTE:
				out = call(out, (char *)m68k_read_byte_scratch1);
				break;
			case OPSIZE_WORD:
				out = call(out, (char *)m68k_read_word_scratch1);
				break;
			case OPSIZE_LONG:
				out = call(out, (char *)m68k_read_long_scratch1);
				break;
			}
			out = pop_r(out, SCRATCH2);
		}
		ea->mode = MODE_REG_DIRECT;
		ea->base = SCRATCH1;
		break;
	case MODE_PC_INDEX_DISP8:
		out = cycles(out, fake_read ? (6 + inst->extra.size == OPSIZE_LONG ? 8 : 4) : 6);
		out = mov_ir(out, inst->address+2, SCRATCH1, SZ_D);
		sec_reg = (inst->dst.params.regs.sec >> 1) & 0x7;
		if (inst->dst.params.regs.sec & 1) {
			if (inst->dst.params.regs.sec & 0x10) {
				if (opts->aregs[sec_reg] >= 0) {
					out = add_rr(out, opts->aregs[sec_reg], SCRATCH1, SZ_D);
				} else {
					out = add_rdisp8r(out, CONTEXT, offsetof(m68k_context, aregs) + sizeof(uint32_t)*sec_reg, SCRATCH1, SZ_D);
				}
			} else {
				if (opts->dregs[sec_reg] >= 0) {
					out = add_rr(out, opts->dregs[sec_reg], SCRATCH1, SZ_D);
				} else {
					out = add_rdisp8r(out, CONTEXT, offsetof(m68k_context, dregs) + sizeof(uint32_t)*sec_reg, SCRATCH1, SZ_D);
				}
			}
		} else {
			if (inst->dst.params.regs.sec & 0x10) {
				if (opts->aregs[sec_reg] >= 0) {
					out = movsx_rr(out, opts->aregs[sec_reg], SCRATCH2, SZ_W, SZ_D);
				} else {
					out = movsx_rdisp8r(out, CONTEXT, offsetof(m68k_context, aregs) + sizeof(uint32_t)*sec_reg, SCRATCH2, SZ_W, SZ_D);
				}
			} else {
				if (opts->dregs[sec_reg] >= 0) {
					out = movsx_rr(out, opts->dregs[sec_reg], SCRATCH2, SZ_W, SZ_D);
				} else {
					out = movsx_rdisp8r(out, CONTEXT, offsetof(m68k_context, dregs) + sizeof(uint32_t)*sec_reg, SCRATCH2, SZ_W, SZ_D);
				}
			}
			out = add_rr(out, SCRATCH2, SCRATCH1, SZ_D);
		}
		if (inst->dst.params.regs.displacement) {
			out = add_ir(out, inst->dst.params.regs.displacement, SCRATCH1, SZ_D);
		}
		if (fake_read) {
			out = mov_rr(out, SCRATCH1, SCRATCH2, SZ_D);
		} else {
			out = push_r(out, SCRATCH1);
			switch (inst->extra.size)
			{
			case OPSIZE_BYTE:
				out = call(out, (char *)m68k_read_byte_scratch1);
				break;
			case OPSIZE_WORD:
				out = call(out, (char *)m68k_read_word_scratch1);
				break;
			case OPSIZE_LONG:
				out = call(out, (char *)m68k_read_long_scratch1);
				break;
			}
			out = pop_r(out, SCRATCH2);
		}
		ea->mode = MODE_REG_DIRECT;
		ea->base = SCRATCH1;
		break;
	case MODE_ABSOLUTE:
	case MODE_ABSOLUTE_SHORT:
		//Add cycles for reading address from instruction stream
		out = cycles(out, (inst->dst.addr_mode == MODE_ABSOLUTE ? BUS*2 : BUS) + (fake_read ? (inst->extra.size == OPSIZE_LONG ? BUS*2 : BUS) : 0));
		out = mov_ir(out, inst->dst.params.immed, fake_read ? SCRATCH2 : SCRATCH1, SZ_D);
		if (!fake_read) {
			out = push_r(out, SCRATCH1);
			switch (inst->extra.size)
			{
			case OPSIZE_BYTE:
				out = call(out, (char *)m68k_read_byte_scratch1);
				break;
			case OPSIZE_WORD:
				out = call(out, (char *)m68k_read_word_scratch1);
				break;
			case OPSIZE_LONG:
				out = call(out, (char *)m68k_read_long_scratch1);
				break;
			}
			out = pop_r(out, SCRATCH2);
		}
		ea->mode = MODE_REG_DIRECT;
		ea->base = SCRATCH1;
		break;
	default:
		printf("address mode %d not implemented (dst)\n", inst->dst.addr_mode);
		exit(1);
	}
	return out;
}

uint8_t * m68k_save_result(m68kinst * inst, uint8_t * out, x86_68k_options * opts)
{
	if (inst->dst.addr_mode != MODE_REG && inst->dst.addr_mode != MODE_AREG) {
		switch (inst->extra.size)
		{
		case OPSIZE_BYTE:
			out = call(out, (char *)m68k_write_byte);
			break;
		case OPSIZE_WORD:
			out = call(out, (char *)m68k_write_word);
			break;
		case OPSIZE_LONG:
			out = call(out, (char *)m68k_write_long_lowfirst);
			break;
		}
	}
	return out;
}

uint8_t * get_native_address(native_map_slot * native_code_map, uint32_t address)
{
	address &= 0xFFFFFF;
	if (address > 0x400000) {
		printf("get_native_address: %X\n", address);
	}
	address /= 2;
	uint32_t chunk = address / NATIVE_CHUNK_SIZE;
	if (!native_code_map[chunk].base) {
		return NULL;
	}
	uint32_t offset = address % NATIVE_CHUNK_SIZE;
	if (native_code_map[chunk].offsets[offset] == INVALID_OFFSET) {
		return NULL;
	}
	return native_code_map[chunk].base + native_code_map[chunk].offsets[offset];
}

deferred_addr * defer_address(deferred_addr * old_head, uint32_t address, uint8_t *dest)
{
	deferred_addr * new_head = malloc(sizeof(deferred_addr));
	new_head->next = old_head;
	new_head->address = address & 0xFFFFFF;
	new_head->dest = dest;
	return new_head;
}

void process_deferred(x86_68k_options * opts)
{
	deferred_addr * cur = opts->deferred;
	deferred_addr **last_next = &(opts->deferred);
	while(cur)
	{
		uint8_t * native = get_native_address(opts->native_code_map, cur->address);
		if (native) {
			int32_t disp = native - (cur->dest + 4);
			uint8_t * out = cur->dest;
			*(out++) = disp;
			disp >>= 8;
			*(out++) = disp;
			disp >>= 8;
			*(out++) = disp;
			disp >>= 8;
			*out = disp;
			*last_next = cur->next;
			free(cur);
			cur = *last_next;
		} else {
			last_next = &(cur->next);
			cur = cur->next;
		}
	}
}

void map_native_address(native_map_slot * native_code_map, uint32_t address, uint8_t * native_addr)
{
	address &= 0xFFFFFF;
	address/= 2;
	uint32_t chunk = address / NATIVE_CHUNK_SIZE;
	if (!native_code_map[chunk].base) {
		native_code_map[chunk].base = native_addr;
		native_code_map[chunk].offsets = malloc(sizeof(int32_t) * NATIVE_CHUNK_SIZE);
		memset(native_code_map[chunk].offsets, 0xFF, sizeof(int32_t) * NATIVE_CHUNK_SIZE);
	}
	uint32_t offset = address % NATIVE_CHUNK_SIZE;
	native_code_map[chunk].offsets[offset] = native_addr-native_code_map[chunk].base;
}

uint8_t * translate_m68k_move(uint8_t * dst, m68kinst * inst, x86_68k_options * opts)
{
	int8_t reg, flags_reg, sec_reg;
	uint8_t dir = 0;
	int32_t offset;
	int32_t inc_amount, dec_amount;
	x86_ea src;
	dst = translate_m68k_src(inst, &src, dst, opts);
	reg = native_reg(&(inst->dst), opts);
	//update statically set flags
	dst = mov_ir(dst, 0, FLAG_V, SZ_B);
	dst = mov_ir(dst, 0, FLAG_C, SZ_B);
	
	if (src.mode == MODE_REG_DIRECT) {
		flags_reg = src.base;
	} else {
		if (reg >= 0) {
			flags_reg = reg;
		} else {
			dst = mov_ir(dst, src.disp, SCRATCH1, SZ_D);
			src.mode = MODE_REG_DIRECT;
			flags_reg = src.base = SCRATCH1;
		}
	}
	switch(inst->dst.addr_mode)
	{
	case MODE_REG:
	case MODE_AREG:
		if (reg >= 0) {
			if (src.mode == MODE_REG_DIRECT) {
				dst = mov_rr(dst, src.base, reg, inst->extra.size);
			} else if (src.mode == MODE_REG_DISPLACE8) {
				dst = mov_rdisp8r(dst, src.base, src.disp, reg, inst->extra.size);
			} else {
				dst = mov_ir(dst, src.disp, reg, inst->extra.size);
			}
		} else if(src.mode == MODE_REG_DIRECT) {
			dst = mov_rrdisp8(dst, src.base, CONTEXT, reg_offset(&(inst->dst)), inst->extra.size);
		} else {
			dst = mov_irdisp8(dst, src.disp, CONTEXT, reg_offset(&(inst->dst)), inst->extra.size);
		}
		dst = cmp_ir(dst, 0, flags_reg, inst->extra.size);
		dst = setcc_r(dst, CC_Z, FLAG_Z);
		dst = setcc_r(dst, CC_S, FLAG_N);
		break;
	case MODE_AREG_PREDEC:
		dec_amount = inst->extra.size == OPSIZE_WORD ? 2 : (inst->extra.size == OPSIZE_LONG ? 4 : 1);
		if (opts->aregs[inst->dst.params.regs.pri] >= 0) {
			dst = sub_ir(dst, dec_amount, opts->aregs[inst->dst.params.regs.pri], SZ_D);
		} else {
			dst = sub_irdisp8(dst, dec_amount, CONTEXT, reg_offset(&(inst->dst)), SZ_D);
		}
	case MODE_AREG_INDIRECT:
	case MODE_AREG_POSTINC:
		if (opts->aregs[inst->dst.params.regs.pri] >= 0) {
			dst = mov_rr(dst, opts->aregs[inst->dst.params.regs.pri], SCRATCH2, SZ_D);
		} else {
			dst = mov_rdisp8r(dst, CONTEXT, reg_offset(&(inst->dst)), SCRATCH2, SZ_D);
		}
		if (src.mode == MODE_REG_DIRECT) {
			if (src.base != SCRATCH1) {
				dst = mov_rr(dst, src.base, SCRATCH1, inst->extra.size);
			}
		} else if (src.mode == MODE_REG_DISPLACE8) {
			dst = mov_rdisp8r(dst, src.base, src.disp, SCRATCH1, inst->extra.size);
		} else {
			dst = mov_ir(dst, src.disp, SCRATCH1, inst->extra.size);
		}
		dst = cmp_ir(dst, 0, flags_reg, inst->extra.size);
		dst = setcc_r(dst, CC_Z, FLAG_Z);
		dst = setcc_r(dst, CC_S, FLAG_N);
		switch (inst->extra.size)
		{
		case OPSIZE_BYTE:
			dst = call(dst, (char *)m68k_write_byte);
			break;
		case OPSIZE_WORD:
			dst = call(dst, (char *)m68k_write_word);
			break;
		case OPSIZE_LONG:
			dst = call(dst, (char *)m68k_write_long_highfirst);
			break;
		}
		if (inst->dst.addr_mode == MODE_AREG_POSTINC) {
			inc_amount = inst->extra.size == OPSIZE_WORD ? 2 : (inst->extra.size == OPSIZE_LONG ? 4 : 1);
			if (opts->aregs[inst->dst.params.regs.pri] >= 0) {
				dst = add_ir(dst, inc_amount, opts->aregs[inst->dst.params.regs.pri], SZ_D);
			} else {
				dst = add_irdisp8(dst, inc_amount, CONTEXT, reg_offset(&(inst->dst)), SZ_D);
			}
		}
		break;
	case MODE_AREG_DISPLACE:
		dst = cycles(dst, BUS);
		if (opts->aregs[inst->dst.params.regs.pri] >= 0) {
			dst = mov_rr(dst, opts->aregs[inst->dst.params.regs.pri], SCRATCH2, SZ_D);
		} else {
			dst = mov_rdisp8r(dst, CONTEXT,  reg_offset(&(inst->dst)), SCRATCH2, SZ_D);
		}
		dst = add_ir(dst, inst->dst.params.regs.displacement, SCRATCH2, SZ_D);
		if (src.mode == MODE_REG_DIRECT) {
			if (src.base != SCRATCH1) {
				dst = mov_rr(dst, src.base, SCRATCH1, inst->extra.size);
			}
		} else if (src.mode == MODE_REG_DISPLACE8) {
			dst = mov_rdisp8r(dst, src.base, src.disp, SCRATCH1, inst->extra.size);
		} else {
			dst = mov_ir(dst, src.disp, SCRATCH1, inst->extra.size);
		}
		dst = cmp_ir(dst, 0, flags_reg, inst->extra.size);
		dst = setcc_r(dst, CC_Z, FLAG_Z);
		dst = setcc_r(dst, CC_S, FLAG_N);
		switch (inst->extra.size)
		{
		case OPSIZE_BYTE:
			dst = call(dst, (char *)m68k_write_byte);
			break;
		case OPSIZE_WORD:
			dst = call(dst, (char *)m68k_write_word);
			break;
		case OPSIZE_LONG:
			dst = call(dst, (char *)m68k_write_long_highfirst);
			break;
		}
		break;
	case MODE_AREG_INDEX_DISP8:
		dst = cycles(dst, 6);//TODO: Check to make sure this is correct
		if (opts->aregs[inst->src.params.regs.pri] >= 0) {
			dst = mov_rr(dst, opts->aregs[inst->src.params.regs.pri], SCRATCH2, SZ_D);
		} else {
			dst = mov_rdisp8r(dst, CONTEXT,  reg_offset(&(inst->src)), SCRATCH2, SZ_D);
		}
		sec_reg = (inst->src.params.regs.sec >> 1) & 0x7;
		if (inst->src.params.regs.sec & 1) {
			if (inst->src.params.regs.sec & 0x10) {
				if (opts->aregs[sec_reg] >= 0) {
					dst = add_rr(dst, opts->aregs[sec_reg], SCRATCH2, SZ_D);
				} else {
					dst = add_rdisp8r(dst, CONTEXT, offsetof(m68k_context, aregs) + sizeof(uint32_t)*sec_reg, SCRATCH2, SZ_D);
				}
			} else {
				if (opts->dregs[sec_reg] >= 0) {
					dst = add_rr(dst, opts->dregs[sec_reg], SCRATCH2, SZ_D);
				} else {
					dst = add_rdisp8r(dst, CONTEXT, offsetof(m68k_context, dregs) + sizeof(uint32_t)*sec_reg, SCRATCH2, SZ_D);
				}
			}
		} else {
			if (src.base == SCRATCH1) {
				dst = push_r(dst, SCRATCH1);
			}
			if (inst->src.params.regs.sec & 0x10) {
				if (opts->aregs[sec_reg] >= 0) {
					dst = movsx_rr(dst, opts->aregs[sec_reg], SCRATCH1, SZ_W, SZ_D);
				} else {
					dst = movsx_rdisp8r(dst, CONTEXT, offsetof(m68k_context, aregs) + sizeof(uint32_t)*sec_reg, SCRATCH1, SZ_W, SZ_D);
				}
			} else {
				if (opts->dregs[sec_reg] >= 0) {
					dst = movsx_rr(dst, opts->dregs[sec_reg], SCRATCH1, SZ_W, SZ_D);
				} else {
					dst = movsx_rdisp8r(dst, CONTEXT, offsetof(m68k_context, dregs) + sizeof(uint32_t)*sec_reg, SCRATCH1, SZ_W, SZ_D);
				}
			}
			dst = add_rr(dst, SCRATCH1, SCRATCH2, SZ_D);
			if (src.base == SCRATCH1) {
				dst = pop_r(dst, SCRATCH1);
			}
		}
		if (inst->src.params.regs.displacement) {
			dst = add_ir(dst, inst->src.params.regs.displacement, SCRATCH2, SZ_D);
		}
		dst = cmp_ir(dst, 0, flags_reg, inst->extra.size);
		dst = setcc_r(dst, CC_Z, FLAG_Z);
		dst = setcc_r(dst, CC_S, FLAG_N);
		switch (inst->extra.size)
		{
		case OPSIZE_BYTE:
			dst = call(dst, (char *)m68k_write_byte);
			break;
		case OPSIZE_WORD:
			dst = call(dst, (char *)m68k_write_word);
			break;
		case OPSIZE_LONG:
			dst = call(dst, (char *)m68k_write_long_highfirst);
			break;
		}
		break;
	case MODE_PC_DISPLACE:
		dst = cycles(dst, BUS);
		dst = mov_ir(dst, inst->dst.params.regs.displacement + inst->address+2, SCRATCH2, SZ_D);
		if (src.mode == MODE_REG_DIRECT) {
			if (src.base != SCRATCH1) {
				dst = mov_rr(dst, src.base, SCRATCH1, inst->extra.size);
			}
		} else if (src.mode == MODE_REG_DISPLACE8) {
			dst = mov_rdisp8r(dst, src.base, src.disp, SCRATCH1, inst->extra.size);
		} else {
			dst = mov_ir(dst, src.disp, SCRATCH1, inst->extra.size);
		}
		dst = cmp_ir(dst, 0, flags_reg, inst->extra.size);
		dst = setcc_r(dst, CC_Z, FLAG_Z);
		dst = setcc_r(dst, CC_S, FLAG_N);
		switch (inst->extra.size)
		{
		case OPSIZE_BYTE:
			dst = call(dst, (char *)m68k_write_byte);
			break;
		case OPSIZE_WORD:
			dst = call(dst, (char *)m68k_write_word);
			break;
		case OPSIZE_LONG:
			dst = call(dst, (char *)m68k_write_long_highfirst);
			break;
		}
		break;
	case MODE_ABSOLUTE:
	case MODE_ABSOLUTE_SHORT:
		if (src.mode == MODE_REG_DIRECT) {
			if (src.base != SCRATCH1) {
				dst = mov_rr(dst, src.base, SCRATCH1, inst->extra.size);
			}
		} else if (src.mode == MODE_REG_DISPLACE8) {
			dst = mov_rdisp8r(dst, src.base, src.disp, SCRATCH1, inst->extra.size);
		} else {
			dst = mov_ir(dst, src.disp, SCRATCH1, inst->extra.size);
		}
		if (inst->dst.addr_mode == MODE_ABSOLUTE) {
			dst = cycles(dst, BUS*2);
		} else {
			dst = cycles(dst, BUS);
		}
		dst = mov_ir(dst, inst->dst.params.immed, SCRATCH2, SZ_D);
		dst = cmp_ir(dst, 0, flags_reg, inst->extra.size);
		dst = setcc_r(dst, CC_Z, FLAG_Z);
		dst = setcc_r(dst, CC_S, FLAG_N);
		switch (inst->extra.size)
		{
		case OPSIZE_BYTE:
			dst = call(dst, (char *)m68k_write_byte);
			break;
		case OPSIZE_WORD:
			dst = call(dst, (char *)m68k_write_word);
			break;
		case OPSIZE_LONG:
			dst = call(dst, (char *)m68k_write_long_highfirst);
			break;
		}
		break;
	default:
		printf("address mode %d not implemented (move dst)\n", inst->dst.addr_mode);
		exit(1);
	}

	//add cycles for prefetch
	dst = cycles(dst, BUS);
	return dst;
}

uint8_t * translate_m68k_movem(uint8_t * dst, m68kinst * inst, x86_68k_options * opts)
{
	int8_t bit,reg;
	uint8_t early_cycles;
	if(inst->src.addr_mode == MODE_REG) {
		//reg to mem
		early_cycles = 8;
		int8_t dir;
		if (inst->dst.addr_mode == MODE_AREG_PREDEC) {
			reg = 15;
			dir = -1;
		} else {
			reg = 0;
		}
		switch (inst->dst.addr_mode)
		{
		case MODE_AREG_INDIRECT:
		case MODE_AREG_PREDEC:
			if (opts->aregs[inst->dst.params.regs.pri] >= 0) {
				dst = mov_rr(dst, opts->aregs[inst->dst.params.regs.pri], SCRATCH2, SZ_D);
			} else {
				dst = mov_rdisp8r(dst, CONTEXT, reg_offset(&(inst->dst)), SCRATCH2, SZ_D);
			}
			break;
		case MODE_ABSOLUTE:
			early_cycles += 4;
		case MODE_ABSOLUTE_SHORT:
			early_cycles += 4;
			dst = mov_ir(dst, inst->dst.params.immed, SCRATCH2, SZ_D);
			break;
		default:
			printf("address mode %d not implemented (movem dst)\n", inst->dst.addr_mode);
			exit(1);
		}
		dst = cycles(dst, early_cycles);
		for(bit=0; reg < 16 && reg >= 0; reg += dir, bit++) {
			if (inst->src.params.immed & (1 << bit)) {
				if (inst->dst.addr_mode == MODE_AREG_PREDEC) {
					dst = sub_ir(dst, (inst->extra.size == OPSIZE_LONG) ? 4 : 2, SCRATCH2, SZ_D);
				}
				dst = push_r(dst, SCRATCH2);
				if (reg > 7) {
					if (opts->aregs[reg-8] >= 0) {
						dst = mov_rr(dst, opts->aregs[reg-8], SCRATCH1, inst->extra.size);
					} else {
						dst = mov_rdisp8r(dst, CONTEXT, offsetof(m68k_context, aregs) + sizeof(uint32_t) * (reg-8), SCRATCH1, inst->extra.size);
					}
				} else {
					if (opts->dregs[reg] >= 0) {
						dst = mov_rr(dst, opts->dregs[reg], SCRATCH1, inst->extra.size);
					} else {
						dst = mov_rdisp8r(dst, CONTEXT, offsetof(m68k_context, dregs) + sizeof(uint32_t) * (reg), SCRATCH1, inst->extra.size);
					}
				}
				if (inst->extra.size == OPSIZE_LONG) {
					dst = call(dst, (uint8_t *)m68k_write_long_lowfirst);
				} else {
					dst = call(dst, (uint8_t *)m68k_write_word);
				}
				dst = pop_r(dst, SCRATCH2);
				if (inst->dst.addr_mode != MODE_AREG_PREDEC) {
					dst = add_ir(dst, (inst->extra.size == OPSIZE_LONG) ? 4 : 2, SCRATCH2, SZ_D);
				}
			}
		}
		if (inst->dst.addr_mode == MODE_AREG_PREDEC) {
			if (opts->aregs[inst->dst.params.regs.pri] >= 0) {
				dst = mov_rr(dst, SCRATCH2, opts->aregs[inst->dst.params.regs.pri], SZ_D);
			} else {
				dst = mov_rrdisp8(dst, SCRATCH2, CONTEXT, reg_offset(&(inst->dst)), SZ_D);
			}
		}
	} else {
		//mem to reg
		early_cycles = 4;
		switch (inst->src.addr_mode)
		{
		case MODE_AREG_INDIRECT:
		case MODE_AREG_POSTINC:
			if (opts->aregs[inst->src.params.regs.pri] >= 0) {
				dst = mov_rr(dst, opts->aregs[inst->src.params.regs.pri], SCRATCH1, SZ_D);
			} else {
				dst = mov_rdisp8r(dst, CONTEXT, reg_offset(&(inst->src)), SCRATCH1, SZ_D);
			}
			break;
		case MODE_ABSOLUTE:
			early_cycles += 4;
		case MODE_ABSOLUTE_SHORT:
			early_cycles += 4;
			dst = mov_ir(dst, inst->src.params.immed, SCRATCH1, SZ_D);
			break;
		default:
			printf("address mode %d not implemented (movem src)\n", inst->src.addr_mode);
			exit(1);
		}
		dst = cycles(dst, early_cycles);
		for(reg = 0; reg < 16; reg ++) {
			if (inst->dst.params.immed & (1 << reg)) {
				dst = push_r(dst, SCRATCH1);
				if (inst->extra.size == OPSIZE_LONG) {
					dst = call(dst, (uint8_t *)m68k_read_long_scratch1);
				} else {
					dst = call(dst, (uint8_t *)m68k_read_word_scratch1);
				}
				if (reg > 7) {
					if (opts->aregs[reg-8] >= 0) {
						dst = mov_rr(dst, SCRATCH1, opts->aregs[reg-8], inst->extra.size);
					} else {
						dst = mov_rrdisp8(dst, SCRATCH1, CONTEXT, offsetof(m68k_context, aregs) + sizeof(uint32_t) * (reg-8), inst->extra.size);
					}
				} else {
					if (opts->dregs[reg] >= 0) {
						dst = mov_rr(dst, SCRATCH1, opts->dregs[reg], inst->extra.size);
					} else {
						dst = mov_rrdisp8(dst, SCRATCH1, CONTEXT, offsetof(m68k_context, dregs) + sizeof(uint32_t) * (reg), inst->extra.size);
					}
				}
				dst = pop_r(dst, SCRATCH1);
				dst = add_ir(dst, (inst->extra.size == OPSIZE_LONG) ? 4 : 2, SCRATCH1, SZ_D);
			}
		}
		if (inst->src.addr_mode == MODE_AREG_POSTINC) {
			if (opts->aregs[inst->src.params.regs.pri] >= 0) {
				dst = mov_rr(dst, SCRATCH1, opts->aregs[inst->src.params.regs.pri], SZ_D);
			} else {
				dst = mov_rrdisp8(dst, SCRATCH1, CONTEXT, reg_offset(&(inst->src)), SZ_D);
			}
		}
	}
	//prefetch
	dst = cycles(dst, 4);
	return dst;
}

uint8_t * translate_m68k_clr(uint8_t * dst, m68kinst * inst, x86_68k_options * opts)
{
	dst = mov_ir(dst, 0, FLAG_N, SZ_B);
	dst = mov_ir(dst, 0, FLAG_V, SZ_B);
	dst = mov_ir(dst, 0, FLAG_C, SZ_B);
	dst = mov_ir(dst, 1, FLAG_Z, SZ_B);
	int8_t reg = native_reg(&(inst->dst), opts);
	if (reg >= 0) {
		dst = cycles(dst, (inst->extra.size == OPSIZE_LONG ? 6 : 4));
		return  xor_rr(dst, reg, reg, inst->extra.size);
	}
	x86_ea dst_op;
	dst = translate_m68k_dst(inst, &dst_op, dst, opts, 1);
	if (dst_op.mode == MODE_REG_DIRECT) {
		dst = xor_rr(dst, dst_op.base, dst_op.base, inst->extra.size);
	} else {
		dst = mov_irdisp8(dst, 0, dst_op.base, dst_op.disp, inst->extra.size);
	}
	dst = m68k_save_result(inst, dst, opts);
	return dst;
}

uint8_t * translate_m68k_ext(uint8_t * dst, m68kinst * inst, x86_68k_options * opts)
{
	x86_ea dst_op;
	uint8_t dst_size = inst->extra.size;
	inst->extra.size--;
	dst = translate_m68k_dst(inst, &dst_op, dst, opts, 0);
	if (dst_op.mode == MODE_REG_DIRECT) {
		dst = movsx_rr(dst, dst_op.base, dst_op.base, inst->extra.size, dst_size);
		dst = cmp_ir(dst, 0, dst_op.base, dst_size);
	} else {
		dst = movsx_rdisp8r(dst, dst_op.base, dst_op.disp, SCRATCH1, inst->extra.size, dst_size);
		dst = cmp_ir(dst, 0, SCRATCH1, dst_size);
		dst = mov_rrdisp8(dst, SCRATCH1, dst_op.base, dst_op.disp, dst_size);
	}
	inst->extra.size = dst_size;
	dst = mov_ir(dst, 0, FLAG_V, SZ_B);
	dst = mov_ir(dst, 0, FLAG_C, SZ_B);
	dst = setcc_r(dst, CC_Z, FLAG_Z);
	dst = setcc_r(dst, CC_S, FLAG_N);
	//M68K EXT only operates on registers so no need for a call to save result here
	return dst;
}

uint8_t * translate_m68k_lea(uint8_t * dst, m68kinst * inst, x86_68k_options * opts)
{
	int8_t dst_reg = native_reg(&(inst->dst), opts), sec_reg;
	switch(inst->src.addr_mode)
	{
	case MODE_AREG_INDIRECT:
		dst = cycles(dst, BUS);
		if (opts->aregs[inst->src.params.regs.pri] >= 0) {
			if (dst_reg >= 0) {
				dst = mov_rr(dst, opts->aregs[inst->src.params.regs.pri], dst_reg, SZ_D);
			} else {
				dst = mov_rrdisp8(dst, opts->aregs[inst->src.params.regs.pri], CONTEXT, offsetof(m68k_context, aregs) + 4 * inst->dst.params.regs.pri, SZ_D);
			}
		} else {
			if (dst_reg >= 0) {
				dst = mov_rdisp8r(dst, CONTEXT, offsetof(m68k_context, aregs) + 4 * inst->src.params.regs.pri, dst_reg, SZ_D);
			} else {
				dst = mov_rdisp8r(dst, CONTEXT, offsetof(m68k_context, aregs) + 4 * inst->src.params.regs.pri, SCRATCH1, SZ_D);
				dst = mov_rrdisp8(dst, SCRATCH1, CONTEXT, offsetof(m68k_context, aregs) + 4 * inst->dst.params.regs.pri, SZ_D);
			}
		}
		break;
	case MODE_AREG_DISPLACE:
		dst = cycles(dst, 8);
		if (dst_reg >= 0) {
			if (opts->aregs[inst->src.params.regs.pri] >= 0) {
				dst = mov_rr(dst, opts->aregs[inst->src.params.regs.pri], dst_reg, SZ_D);
			} else {
				dst = mov_rdisp8r(dst, CONTEXT, reg_offset(&(inst->src)), dst_reg, SZ_D);
			}
			dst = add_ir(dst, inst->src.params.regs.displacement, dst_reg, SZ_D);
		} else {
			if (opts->aregs[inst->src.params.regs.pri] >= 0) {
				dst = mov_rrdisp8(dst, opts->aregs[inst->src.params.regs.pri], CONTEXT, reg_offset(&(inst->dst)), SZ_D);
			} else {
				dst = mov_rdisp8r(dst, CONTEXT, reg_offset(&(inst->src)), SCRATCH1, SZ_D);
				dst = mov_rrdisp8(dst, SCRATCH1, CONTEXT, reg_offset(&(inst->dst)), SZ_D);
			}
			dst = add_irdisp8(dst, inst->src.params.regs.displacement, CONTEXT, reg_offset(&(inst->src)), SZ_D);
		}
		break;
	case MODE_AREG_INDEX_DISP8:
		dst = cycles(dst, 6);//TODO: Check to make sure this is correct
		if (opts->aregs[inst->src.params.regs.pri] >= 0) {
			dst = mov_rr(dst, opts->aregs[inst->src.params.regs.pri], SCRATCH2, SZ_D);
		} else {
			dst = mov_rdisp8r(dst, CONTEXT,  reg_offset(&(inst->src)), SCRATCH2, SZ_D);
		}
		sec_reg = (inst->src.params.regs.sec >> 1) & 0x7;
		if (inst->src.params.regs.sec & 1) {
			if (inst->src.params.regs.sec & 0x10) {
				if (opts->aregs[sec_reg] >= 0) {
					dst = add_rr(dst, opts->aregs[sec_reg], SCRATCH2, SZ_D);
				} else {
					dst = add_rdisp8r(dst, CONTEXT, offsetof(m68k_context, aregs) + sizeof(uint32_t)*sec_reg, SCRATCH2, SZ_D);
				}
			} else {
				if (opts->dregs[sec_reg] >= 0) {
					dst = add_rr(dst, opts->dregs[sec_reg], SCRATCH2, SZ_D);
				} else {
					dst = add_rdisp8r(dst, CONTEXT, offsetof(m68k_context, dregs) + sizeof(uint32_t)*sec_reg, SCRATCH2, SZ_D);
				}
			}
		} else {
			if (inst->src.params.regs.sec & 0x10) {
				if (opts->aregs[sec_reg] >= 0) {
					dst = movsx_rr(dst, opts->aregs[sec_reg], SCRATCH1, SZ_W, SZ_D);
				} else {
					dst = movsx_rdisp8r(dst, CONTEXT, offsetof(m68k_context, aregs) + sizeof(uint32_t)*sec_reg, SCRATCH1, SZ_W, SZ_D);
				}
			} else {
				if (opts->dregs[sec_reg] >= 0) {
					dst = movsx_rr(dst, opts->dregs[sec_reg], SCRATCH1, SZ_W, SZ_D);
				} else {
					dst = movsx_rdisp8r(dst, CONTEXT, offsetof(m68k_context, dregs) + sizeof(uint32_t)*sec_reg, SCRATCH1, SZ_W, SZ_D);
				}
			}
			dst = add_rr(dst, SCRATCH1, SCRATCH2, SZ_D);
		}
		if (inst->src.params.regs.displacement) {
			dst = add_ir(dst, inst->src.params.regs.displacement, SCRATCH2, SZ_D);
		}
		if (dst_reg >= 0) {
			dst = mov_rr(dst, SCRATCH2, dst_reg, SZ_D);
		} else {
			dst = mov_rrdisp8(dst, SCRATCH2, CONTEXT, reg_offset(&(inst->src)), SZ_D);
		}
		break;
	case MODE_PC_DISPLACE:
		dst = cycles(dst, 8);
		if (dst_reg >= 0) {
			dst = mov_ir(dst, inst->src.params.regs.displacement + inst->address+2, dst_reg, SZ_D);
		} else {
			dst = mov_irdisp8(dst, inst->src.params.regs.displacement + inst->address+2, CONTEXT, offsetof(m68k_context, aregs) + 4 * inst->dst.params.regs.pri, SZ_D);
		}
		break;
	case MODE_ABSOLUTE:
	case MODE_ABSOLUTE_SHORT:
		dst = cycles(dst, (inst->src.addr_mode == MODE_ABSOLUTE) ? BUS * 3 : BUS * 2);
		if (dst_reg >= 0) {
			dst = mov_ir(dst, inst->src.params.immed, dst_reg, SZ_D);
		} else {
			dst = mov_irdisp8(dst, inst->src.params.immed, CONTEXT, offsetof(m68k_context, aregs) + 4 * inst->dst.params.regs.pri, SZ_D);
		}
		break;
	default:
		printf("address mode %d not implemented (lea src)\n", inst->src.addr_mode);
		exit(1);
	}
	return dst;
}

uint8_t * translate_m68k_bsr(uint8_t * dst, m68kinst * inst, x86_68k_options * opts)
{
	int32_t disp = inst->src.params.immed;
	uint32_t after = inst->address + 2;
	//TODO: Add cycles in the right place relative to pushing the return address on the stack
	dst = cycles(dst, 10);
	dst = mov_ir(dst, after, SCRATCH1, SZ_D);
	dst = push_r(dst, SCRATCH1);
	dst = sub_ir(dst, 4, opts->aregs[7], SZ_D);
	dst = mov_rr(dst, opts->aregs[7], SCRATCH2, SZ_D);
	dst = call(dst, (char *)m68k_write_long_highfirst);
	uint8_t * dest_addr = get_native_address(opts->native_code_map, after + disp);
	if (!dest_addr) {
		opts->deferred = defer_address(opts->deferred, after + disp, dst + 1);
		//dummy address to be replaced later
		dest_addr = dst + 5;
	}
	dst = call(dst, (char *)dest_addr);
	//would add_ir(dst, 8, RSP, SZ_Q) be faster here?
	dst = pop_r(dst, SCRATCH1);
	return dst;
}

uint8_t * translate_m68k_bcc(uint8_t * dst, m68kinst * inst, x86_68k_options * opts)
{
	//TODO: Add cycles
	int32_t disp = inst->src.params.immed;
	uint32_t after = inst->address + 2;
	uint8_t * dest_addr = get_native_address(opts->native_code_map, after + disp);
	if (inst->extra.cond == COND_TRUE) {
		if (!dest_addr) {
			opts->deferred = defer_address(opts->deferred, after + disp, dst + 1);
			//dummy address to be replaced later, make sure it generates a 4-byte displacement
			dest_addr = dst + 256;
		}
		dst = jmp(dst, dest_addr);
	} else {
		uint8_t cond = CC_NZ;
		switch (inst->extra.cond)
		{
		case COND_HIGH:
			cond = CC_Z;
		case COND_LOW_SAME:
			dst = mov_rr(dst, FLAG_Z, SCRATCH1, SZ_B);
			dst = or_rr(dst, FLAG_C, SCRATCH1, SZ_B);
			break;
		case COND_CARRY_CLR:
			cond = CC_Z;
		case COND_CARRY_SET:
			dst = cmp_ir(dst, 0, FLAG_C, SZ_B);
			break;
		case COND_NOT_EQ:
			cond = CC_Z;
		case COND_EQ:
			dst = cmp_ir(dst, 0, FLAG_Z, SZ_B);
			break;
		case COND_OVERF_CLR:
			cond = CC_Z;
		case COND_OVERF_SET:
			dst = cmp_ir(dst, 0, FLAG_V, SZ_B);
			break;
		case COND_PLUS:
			cond = CC_Z;
		case COND_MINUS:
			dst = cmp_ir(dst, 0, FLAG_N, SZ_B);
			break;
		case COND_GREATER_EQ:
			cond = CC_Z;
		case COND_LESS:
			dst = cmp_rr(dst, FLAG_N, FLAG_V, SZ_B);
			break;
		case COND_GREATER:
			cond = CC_Z;
		case COND_LESS_EQ:
			dst = mov_rr(dst, FLAG_V, SCRATCH1, SZ_B);
			dst = xor_rr(dst, FLAG_N, SCRATCH1, SZ_B);
			dst = or_rr(dst, FLAG_Z, SCRATCH1, SZ_B);
			break;
		}
		if (!dest_addr) {
			opts->deferred = defer_address(opts->deferred, after + disp, dst + 2);
			//dummy address to be replaced later, make sure it generates a 4-byte displacement
			dest_addr = dst + 256;
		}
		dst = jcc(dst, cond, dest_addr);
	}
	return dst;
}

uint8_t * translate_m68k_jmp(uint8_t * dst, m68kinst * inst, x86_68k_options * opts)
{
	uint8_t * dest_addr;
	switch(inst->src.addr_mode)
	{
	case MODE_AREG_INDIRECT:
		dst = cycles(dst, BUS*2);
		if (opts->aregs[inst->src.params.regs.pri] >= 0) {
			dst = mov_rr(dst, opts->aregs[inst->src.params.regs.pri], SCRATCH1, SZ_D);
		} else {
			dst = mov_rdisp8r(dst, CONTEXT, offsetof(m68k_context, aregs) + 4 * inst->src.params.regs.pri, SCRATCH1, SZ_D);
		}
		dst = call(dst, (uint8_t *)m68k_native_addr);
		dst = jmp_r(dst, SCRATCH1);
		break;
	case MODE_PC_DISPLACE:
		dst = cycles(dst, 10);
		dest_addr = get_native_address(opts->native_code_map, inst->src.params.regs.displacement + inst->address + 2);
		if (!dest_addr) {
			opts->deferred = defer_address(opts->deferred, inst->src.params.immed, dst + 1);
			//dummy address to be replaced later, make sure it generates a 4-byte displacement
			dest_addr = dst + 256;
		}
		dst = jmp(dst, dest_addr);
		break;
	case MODE_ABSOLUTE:
	case MODE_ABSOLUTE_SHORT:
		dst = cycles(dst, inst->src.addr_mode == MODE_ABSOLUTE ? 12 : 10);
		dest_addr = get_native_address(opts->native_code_map, inst->src.params.immed);
		if (!dest_addr) {
			opts->deferred = defer_address(opts->deferred, inst->src.params.immed, dst + 1);
			//dummy address to be replaced later, make sure it generates a 4-byte displacement
			dest_addr = dst + 256;
		}
		dst = jmp(dst, dest_addr);
		break;
	default:
		printf("address mode %d not yet supported (jmp)\n", inst->src.addr_mode);
	}
	return dst;
}

uint8_t * translate_m68k_jsr(uint8_t * dst, m68kinst * inst, x86_68k_options * opts)
{
	uint8_t * dest_addr;
	uint32_t after;
	switch(inst->src.addr_mode)
	{
	case MODE_AREG_INDIRECT:
		dst = cycles(dst, BUS*2);
		dst = mov_ir(dst, inst->address + 8, SCRATCH1, SZ_D);
		dst = push_r(dst, SCRATCH1);
		dst = sub_ir(dst, 4, opts->aregs[7], SZ_D);
		dst = mov_rr(dst, opts->aregs[7], SCRATCH2, SZ_D);
		dst = call(dst, (char *)m68k_write_long_highfirst);
		if (opts->aregs[inst->src.params.regs.pri] >= 0) {
			dst = mov_rr(dst, opts->aregs[inst->src.params.regs.pri], SCRATCH1, SZ_D);
		} else {
			dst = mov_rdisp8r(dst, CONTEXT, offsetof(m68k_context, aregs) + 4 * inst->src.params.regs.pri, SCRATCH1, SZ_D);
		}
		dst = call(dst, (uint8_t *)m68k_native_addr);
		dst = call_r(dst, SCRATCH1);
		//would add_ir(dst, 8, RSP, SZ_Q) be faster here?
		dst = pop_r(dst, SCRATCH1);
		break;
	case MODE_PC_DISPLACE:
		//TODO: Add cycles in the right place relative to pushing the return address on the stack
		dst = cycles(dst, 10);
		dst = mov_ir(dst, inst->address + 8, SCRATCH1, SZ_D);
		dst = push_r(dst, SCRATCH1);
		dst = sub_ir(dst, 4, opts->aregs[7], SZ_D);
		dst = mov_rr(dst, opts->aregs[7], SCRATCH2, SZ_D);
		dst = call(dst, (char *)m68k_write_long_highfirst);
		dest_addr = get_native_address(opts->native_code_map, inst->src.params.regs.displacement + inst->address + 2);
		if (!dest_addr) {
			opts->deferred = defer_address(opts->deferred, inst->src.params.immed, dst + 1);
			//dummy address to be replaced later, make sure it generates a 4-byte displacement
			dest_addr = dst + 5;
		}
		dst = call(dst, (char *)dest_addr);
		//would add_ir(dst, 8, RSP, SZ_Q) be faster here?
		dst = pop_r(dst, SCRATCH1);
		break;
	case MODE_ABSOLUTE:
	case MODE_ABSOLUTE_SHORT:
		//TODO: Add cycles in the right place relative to pushing the return address on the stack
		dst = cycles(dst, inst->src.addr_mode == MODE_ABSOLUTE ? 12 : 10);
		dst = mov_ir(dst, inst->address + 8, SCRATCH1, SZ_D);
		dst = push_r(dst, SCRATCH1);
		dst = sub_ir(dst, 4, opts->aregs[7], SZ_D);
		dst = mov_rr(dst, opts->aregs[7], SCRATCH2, SZ_D);
		dst = call(dst, (char *)m68k_write_long_highfirst);
		dest_addr = get_native_address(opts->native_code_map, inst->src.params.immed);
		if (!dest_addr) {
			opts->deferred = defer_address(opts->deferred, inst->src.params.immed, dst + 1);
			//dummy address to be replaced later, make sure it generates a 4-byte displacement
			dest_addr = dst + 5;
		}
		dst = call(dst, (char *)dest_addr);
		//would add_ir(dst, 8, RSP, SZ_Q) be faster here?
		dst = pop_r(dst, SCRATCH1);
		break;
	default:
		printf("address mode %d not yet supported (jsr)\n", inst->src.addr_mode);
	}
	return dst;
}

uint8_t * translate_m68k_rts(uint8_t * dst, m68kinst * inst, x86_68k_options * opts)
{
	//TODO: Add cycles
	dst = mov_rr(dst, opts->aregs[7], SCRATCH1, SZ_D);
	dst = add_ir(dst, 4, opts->aregs[7], SZ_D);
	dst = call(dst, (char *)m68k_read_long_scratch1);
	dst = cmp_rdisp8r(dst, RSP, 8, SCRATCH1, SZ_D);
	dst = jcc(dst, CC_NZ, dst+3);
	dst = retn(dst);
	dst = jmp(dst, (char *)m68k_modified_ret_addr);
	return dst;
}

uint8_t * translate_m68k_dbcc(uint8_t * dst, m68kinst * inst, x86_68k_options * opts)
{
	//best case duration
	dst = cycles(dst, 10);
	uint8_t * skip_loc = NULL;
	//TODO: Check if COND_TRUE technically valid here even though
	//it's basically a slow NOP
	if (inst->extra.cond != COND_FALSE) {
		uint8_t cond = CC_NZ;
		switch (inst->extra.cond)
		{
		case COND_HIGH:
			cond = CC_Z;
		case COND_LOW_SAME:
			dst = mov_rr(dst, FLAG_Z, SCRATCH1, SZ_B);
			dst = or_rr(dst, FLAG_C, SCRATCH1, SZ_B);
			break;
		case COND_CARRY_CLR:
			cond = CC_Z;
		case COND_CARRY_SET:
			dst = cmp_ir(dst, 0, FLAG_C, SZ_B);
			break;
		case COND_NOT_EQ:
			cond = CC_Z;
		case COND_EQ:
			dst = cmp_ir(dst, 0, FLAG_Z, SZ_B);
			break;
		case COND_OVERF_CLR:
			cond = CC_Z;
		case COND_OVERF_SET:
			dst = cmp_ir(dst, 0, FLAG_V, SZ_B);
			break;
		case COND_PLUS:
			cond = CC_Z;
		case COND_MINUS:
			dst = cmp_ir(dst, 0, FLAG_N, SZ_B);
			break;
		case COND_GREATER_EQ:
			cond = CC_Z;
		case COND_LESS:
			dst = cmp_rr(dst, FLAG_N, FLAG_V, SZ_B);
			break;
		case COND_GREATER:
			cond = CC_Z;
		case COND_LESS_EQ:
			dst = mov_rr(dst, FLAG_V, SCRATCH1, SZ_B);
			dst = xor_rr(dst, FLAG_N, SCRATCH1, SZ_B);
			dst = or_rr(dst, FLAG_Z, SCRATCH1, SZ_B);
			break;
		}
		skip_loc = dst + 1;
		dst = jcc(dst, cond, dst + 2);
	}
	if (opts->dregs[inst->dst.params.regs.pri] >= 0) {
		dst = sub_ir(dst, 1, opts->dregs[inst->dst.params.regs.pri], SZ_W);
		dst = cmp_ir(dst, -1, opts->dregs[inst->dst.params.regs.pri], SZ_W);
	} else {
		dst = sub_irdisp8(dst, 1, CONTEXT, offsetof(m68k_context, dregs) + 4 * inst->dst.params.regs.pri, SZ_W);
		dst = cmp_irdisp8(dst, -1, CONTEXT, offsetof(m68k_context, dregs) + 4 * inst->dst.params.regs.pri, SZ_W);
	}
	uint8_t *loop_end_loc = dst+1;
	dst = jcc(dst, CC_Z, dst+2);
	uint32_t after = inst->address + 2;
	uint8_t * dest_addr = get_native_address(opts->native_code_map, after + inst->src.params.immed);
	if (!dest_addr) {
		opts->deferred = defer_address(opts->deferred, after + inst->src.params.immed, dst + 1);
		//dummy address to be replaced later, make sure it generates a 4-byte displacement
		dest_addr = dst + 256;
	}
	dst = jmp(dst, dest_addr);
	*loop_end_loc = dst - (loop_end_loc+1);
	if (skip_loc) {
		dst = cycles(dst, 2);
		*skip_loc = dst - (skip_loc+1);
		dst = cycles(dst, 2);
	} else {
		dst = cycles(dst, 4);
	}
	return dst;
}

uint8_t * translate_m68k_link(uint8_t * dst, m68kinst * inst, x86_68k_options * opts)
{
	int8_t reg = native_reg(&(inst->src), opts);
	//compensate for displacement word
	dst = cycles(dst, BUS);
	dst = sub_ir(dst, 4, opts->aregs[7], SZ_D);
	dst = mov_rr(dst, opts->aregs[7], SCRATCH2, SZ_D);
	if (reg >= 0) {
		dst = mov_rr(dst, reg, SCRATCH1, SZ_D);
	} else {
		dst = mov_rdisp8r(dst, CONTEXT, reg_offset(&(inst->src)), SCRATCH1, SZ_D);
	}
	dst = call(dst, (char *)m68k_write_long_highfirst);
	if (reg >= 0) {
		dst = mov_rr(dst, opts->aregs[7], reg, SZ_D);
	} else {
		dst = mov_rrdisp8(dst, opts->aregs[7], CONTEXT, reg_offset(&(inst->src)), SZ_D);
	}
	dst = add_ir(dst, inst->dst.params.immed, opts->aregs[7], SZ_D);
	//prefetch
	dst = cycles(dst, BUS);
	return dst;
}

typedef uint8_t * (*shift_ir_t)(uint8_t * out, uint8_t val, uint8_t dst, uint8_t size);
typedef uint8_t * (*shift_irdisp8_t)(uint8_t * out, uint8_t val, uint8_t dst_base, int8_t disp, uint8_t size);
typedef uint8_t * (*shift_clr_t)(uint8_t * out, uint8_t dst, uint8_t size);
typedef uint8_t * (*shift_clrdisp8_t)(uint8_t * out, uint8_t dst_base, int8_t disp, uint8_t size);

uint8_t * translate_shift(uint8_t * dst, m68kinst * inst, x86_ea *src_op, x86_ea * dst_op, x86_68k_options * opts, shift_ir_t shift_ir, shift_irdisp8_t shift_irdisp8, shift_clr_t shift_clr, shift_clrdisp8_t shift_clrdisp8, shift_ir_t special, shift_irdisp8_t special_disp8)
{
	uint8_t * end_off = NULL;
	if (inst->src.addr_mode == MODE_UNUSED) {
		dst = cycles(dst, BUS);
		//Memory shift
		dst = shift_ir(dst, 1, dst_op->base, SZ_W);
	} else {
		dst = cycles(dst, inst->extra.size == OPSIZE_LONG ? 8 : 6);
		if (src_op->mode == MODE_IMMED) {
			if (dst_op->mode == MODE_REG_DIRECT) {
				dst = shift_ir(dst, src_op->disp, dst_op->base, inst->extra.size);
			} else {
				dst = shift_irdisp8(dst, src_op->disp, dst_op->base, dst_op->disp, inst->extra.size);
			}
		} else {
			if (src_op->base != RCX) {
				if (src_op->mode == MODE_REG_DIRECT) {
					dst = mov_rr(dst, src_op->base, RCX, SZ_B);
				} else {
					dst = mov_rdisp8r(dst, src_op->base, src_op->disp, RCX, SZ_B);
				}
			}
			dst = and_ir(dst, 63, RCX, SZ_D);
			//add 2 cycles for every bit shifted
			dst = add_rr(dst, RCX, CYCLES, SZ_D);
			dst = add_rr(dst, RCX, CYCLES, SZ_D);
			//x86 shifts modulo 32 for operand sizes less than 64-bits
			//but M68K shifts modulo 64, so we need to check for large shifts here
			dst = cmp_ir(dst, 32, RCX, SZ_B);
			uint8_t * norm_shift_off = dst + 1;
			dst = jcc(dst, CC_L, dst+2);
			if (special) {
				if (inst->extra.size == OPSIZE_LONG) {
					uint8_t * neq_32_off = dst + 1;
					dst = jcc(dst, CC_NZ, dst+2);
			
					//set the carry bit to the lsb
					if (dst_op->mode == MODE_REG_DIRECT) {
						dst = special(dst, 1, dst_op->base, SZ_D);
					} else {
						dst = special_disp8(dst, 1, dst_op->base, dst_op->disp, SZ_D);
					}
					dst = setcc_r(dst, CC_C, FLAG_C);
					dst = jmp(dst, dst+4);
					*neq_32_off = dst - (neq_32_off+1);
				}
				dst = mov_ir(dst, 0, FLAG_C, SZ_B);
				dst = mov_ir(dst, 1, FLAG_Z, SZ_B);
				dst = mov_ir(dst, 0, FLAG_N, SZ_B);
				if (dst_op->mode == MODE_REG_DIRECT) {
					dst = xor_rr(dst, dst_op->base, dst_op->base, inst->extra.size);
				} else {
					dst = mov_irdisp8(dst, 0, dst_op->base, dst_op->disp, inst->extra.size);
				}
			} else {
				if (dst_op->mode == MODE_REG_DIRECT) {
					dst = shift_ir(dst, 31, dst_op->base, inst->extra.size);
					dst = shift_ir(dst, 1, dst_op->base, inst->extra.size);
				} else {
					dst = shift_irdisp8(dst, 31, dst_op->base, dst_op->disp, inst->extra.size);
					dst = shift_irdisp8(dst, 1, dst_op->base, dst_op->disp, inst->extra.size);
				}
				
			}
			end_off = dst+1;
			dst = jmp(dst, dst+2);
			*norm_shift_off = dst - (norm_shift_off+1);
			if (dst_op->mode == MODE_REG_DIRECT) {
				dst = shift_clr(dst, dst_op->base, inst->extra.size);
			} else {
				dst = shift_clrdisp8(dst, dst_op->base, dst_op->disp, inst->extra.size);
			}
			
		}
		
	}
	if (!special && end_off) {
		*end_off = dst - (end_off + 1);
	}
	dst = setcc_r(dst, CC_C, FLAG_C);
	dst = setcc_r(dst, CC_Z, FLAG_Z);
	dst = setcc_r(dst, CC_S, FLAG_N);
	if (special && end_off) {
		*end_off = dst - (end_off + 1);
	}
	dst = mov_ir(dst, 0, FLAG_V, SZ_B);
	//set X flag to same as C flag
	dst = mov_rrind(dst, FLAG_C, CONTEXT, SZ_B);
	if (inst->src.addr_mode == MODE_UNUSED) {
		dst = m68k_save_result(inst, dst, opts);
	}
	return dst;
}

#define BIT_SUPERVISOR 5

uint8_t * translate_m68k(uint8_t * dst, m68kinst * inst, x86_68k_options * opts)
{
	uint8_t * end_off;
	map_native_address(opts->native_code_map, inst->address, dst);
	dst = check_cycles_int(dst, inst->address);
	if (inst->op == M68K_MOVE) {
		return translate_m68k_move(dst, inst, opts);
	} else if(inst->op == M68K_LEA) {
		return translate_m68k_lea(dst, inst, opts);
	} else if(inst->op == M68K_BSR) {
		return translate_m68k_bsr(dst, inst, opts);
	} else if(inst->op == M68K_BCC) {
		return translate_m68k_bcc(dst, inst, opts);
	} else if(inst->op == M68K_JMP) {
		return translate_m68k_jmp(dst, inst, opts);
	} else if(inst->op == M68K_JSR) {
		return translate_m68k_jsr(dst, inst, opts);
	} else if(inst->op == M68K_RTS) {
		return translate_m68k_rts(dst, inst, opts);
	} else if(inst->op == M68K_DBCC) {
		return translate_m68k_dbcc(dst, inst, opts);
	} else if(inst->op == M68K_CLR) {
		return translate_m68k_clr(dst, inst, opts);
	} else if(inst->op == M68K_MOVEM) {
		return translate_m68k_movem(dst, inst, opts);
	} else if(inst->op == M68K_LINK) {
		return translate_m68k_link(dst, inst, opts);
	} else if(inst->op == M68K_EXT) {
		return translate_m68k_ext(dst, inst, opts);
	}
	x86_ea src_op, dst_op;
	if (inst->src.addr_mode != MODE_UNUSED) {
		dst = translate_m68k_src(inst, &src_op, dst, opts);
	}
	if (inst->dst.addr_mode != MODE_UNUSED) {
		dst = translate_m68k_dst(inst, &dst_op, dst, opts, 0);
	}
	switch(inst->op)
	{
	//case M68K_ABCD:
	//	break;
	case M68K_ADD:
		dst = cycles(dst, BUS);
		if (src_op.mode == MODE_REG_DIRECT) {
			if (dst_op.mode == MODE_REG_DIRECT) {
				dst = add_rr(dst, src_op.base, dst_op.base, inst->extra.size);
			} else {
				dst = add_rrdisp8(dst, src_op.base, dst_op.base, dst_op.disp, inst->extra.size);
			}
		} else if (src_op.mode == MODE_REG_DISPLACE8) {
			dst = add_rdisp8r(dst, src_op.base, src_op.disp, dst_op.base, inst->extra.size);
		} else {
			if (dst_op.mode == MODE_REG_DIRECT) {
				dst = add_ir(dst, src_op.disp, dst_op.base, inst->extra.size);
			} else {
				dst = add_irdisp8(dst, src_op.disp, dst_op.base, dst_op.disp, inst->extra.size);
			}
		}
		dst = setcc_r(dst, CC_C, FLAG_C);
		dst = setcc_r(dst, CC_Z, FLAG_Z);
		dst = setcc_r(dst, CC_S, FLAG_N);
		dst = setcc_r(dst, CC_O, FLAG_V);
		dst = mov_rrind(dst, FLAG_C, CONTEXT, SZ_B);
		dst = m68k_save_result(inst, dst, opts);
		break;
	//case M68K_ADDX:
	//	break;
	case M68K_AND:
		dst = cycles(dst, BUS);
		if (src_op.mode == MODE_REG_DIRECT) {
			if (dst_op.mode == MODE_REG_DIRECT) {
				dst = and_rr(dst, src_op.base, dst_op.base, inst->extra.size);
			} else {
				dst = and_rrdisp8(dst, src_op.base, dst_op.base, dst_op.disp, inst->extra.size);
			}
		} else if (src_op.mode == MODE_REG_DISPLACE8) {
			dst = and_rdisp8r(dst, src_op.base, src_op.disp, dst_op.base, inst->extra.size);
		} else {
			if (dst_op.mode == MODE_REG_DIRECT) {
				dst = and_ir(dst, src_op.disp, dst_op.base, inst->extra.size);
			} else {
				dst = and_irdisp8(dst, src_op.disp, dst_op.base, dst_op.disp, inst->extra.size);
			}
		}
		dst = mov_ir(dst, 0, FLAG_C, SZ_B);
		dst = setcc_r(dst, CC_Z, FLAG_Z);
		dst = setcc_r(dst, CC_S, FLAG_N);
		dst = mov_ir(dst, 0, FLAG_V, SZ_B);
		dst = m68k_save_result(inst, dst, opts);
		break;
	case M68K_ANDI_CCR:
	case M68K_ANDI_SR:
		dst = cycles(dst, 20);
		//TODO: If ANDI to SR, trap if not in supervisor mode
		if (!(inst->src.params.immed & 0x1)) {
			dst = mov_ir(dst, 0, FLAG_C, SZ_B);
		}
		if (!(inst->src.params.immed & 0x2)) {
			dst = mov_ir(dst, 0, FLAG_V, SZ_B);
		}
		if (!(inst->src.params.immed & 0x4)) {
			dst = mov_ir(dst, 0, FLAG_Z, SZ_B);
		}
		if (!(inst->src.params.immed & 0x8)) {
			dst = mov_ir(dst, 0, FLAG_N, SZ_B);
		}
		if (!(inst->src.params.immed & 0x10)) {
			dst = mov_irind(dst, 0, CONTEXT, SZ_B);
		}
		if (inst->op == M68K_ANDI_SR) {
			dst = and_irdisp8(dst, inst->src.params.immed >> 8, CONTEXT, offsetof(m68k_context, status), SZ_B);
			if (!((inst->src.params.immed >> 8) & (1 << BIT_SUPERVISOR))) {
				//leave supervisor mode
				dst = mov_rr(dst, opts->aregs[7], SCRATCH1, SZ_B);
				dst = mov_rdisp8r(dst, CONTEXT, offsetof(m68k_context, aregs) + sizeof(uint32_t) * 8, opts->aregs[7], SZ_B);
				dst = mov_rrdisp8(dst, SCRATCH1, CONTEXT, offsetof(m68k_context, aregs) + sizeof(uint32_t) * 8, SZ_B);
			}
		}
		break;
	case M68K_ASL:
	case M68K_LSL:
		dst = translate_shift(dst, inst, &src_op, &dst_op, opts, shl_ir, shl_irdisp8, shl_clr, shl_clrdisp8, shr_ir, shr_irdisp8);
		break;
	case M68K_ASR:
		dst = translate_shift(dst, inst, &src_op, &dst_op, opts, sar_ir, sar_irdisp8, sar_clr, sar_clrdisp8, NULL, NULL);
		break;
	case M68K_LSR:
		dst = translate_shift(dst, inst, &src_op, &dst_op, opts, shr_ir, shr_irdisp8, shr_clr, shr_clrdisp8, shl_ir, shl_irdisp8);
		break;
	/*case M68K_BCHG:
	case M68K_BCLR:
	case M68K_BSET:
		break;*/
	case M68K_BTST:
		dst = cycles(dst, inst->extra.size == OPSIZE_BYTE ? 4 : 6);
		if (src_op.mode == MODE_IMMED) {
			if (inst->extra.size == OPSIZE_BYTE) {
				src_op.disp &= 0x7;
			}
			if (dst_op.mode == MODE_REG_DIRECT) {
				dst = bt_ir(dst, src_op.disp, dst_op.base, SZ_D);
			} else {
				dst = bt_irdisp8(dst, src_op.disp, dst_op.base, dst_op.disp, SZ_D);
			}
		} else {
			if (src_op.mode == MODE_REG_DISPLACE8) {
				if (dst_op.base == SCRATCH1) {
					dst = push_r(dst, SCRATCH2);
					dst = mov_rdisp8r(dst, src_op.base, src_op.disp, SCRATCH2, SZ_B);
					src_op.base = SCRATCH1;
				} else {
					dst = mov_rdisp8r(dst, src_op.base, src_op.disp, SCRATCH1, SZ_B);
					src_op.base = SCRATCH1;
				}
			}
			if (inst->extra.size == OPSIZE_BYTE) {
				dst = and_ir(dst, 0x7, src_op.base, SZ_B);
			}
			if (dst_op.mode == MODE_REG_DIRECT) {
				dst = bt_rr(dst, src_op.base, dst_op.base, SZ_D);
			} else {
				dst = bt_rrdisp8(dst, src_op.base, dst_op.base, dst_op.disp, SZ_D);
			}
		}
		//x86 sets the carry flag to the value of the bit tested
		//68K sets the zero flag to the complement of the bit tested
		dst = setcc_r(dst, CC_NC, FLAG_Z);
		if (src_op.base == SCRATCH2) {
			dst = pop_r(dst, SCRATCH2);
		}
		break;
	/*case M68K_CHK:
		break;*/
	case M68K_CMP:
		dst = cycles(dst, BUS);
		if (src_op.mode == MODE_REG_DIRECT) {
			if (dst_op.mode == MODE_REG_DIRECT) {
				dst = cmp_rr(dst, src_op.base, dst_op.base, inst->extra.size);
			} else {
				dst = cmp_rrdisp8(dst, src_op.base, dst_op.base, dst_op.disp, inst->extra.size);
			}
		} else if (src_op.mode == MODE_REG_DISPLACE8) {
			dst = cmp_rdisp8r(dst, src_op.base, src_op.disp, dst_op.base, inst->extra.size);
		} else {
			if (dst_op.mode == MODE_REG_DIRECT) {
				dst = cmp_ir(dst, src_op.disp, dst_op.base, inst->extra.size);
			} else {
				dst = cmp_irdisp8(dst, src_op.disp, dst_op.base, dst_op.disp, inst->extra.size);
			}
		}
		dst = setcc_r(dst, CC_C, FLAG_C);
		dst = setcc_r(dst, CC_Z, FLAG_Z);
		dst = setcc_r(dst, CC_S, FLAG_N);
		dst = setcc_r(dst, CC_O, FLAG_V);
		break;
	/*case M68K_DIVS:
	case M68K_DIVU:
		break;*/
	case M68K_EOR:
		dst = cycles(dst, BUS);
		if (src_op.mode == MODE_REG_DIRECT) {
			if (dst_op.mode == MODE_REG_DIRECT) {
				dst = xor_rr(dst, src_op.base, dst_op.base, inst->extra.size);
			} else {
				dst = xor_rrdisp8(dst, src_op.base, dst_op.base, dst_op.disp, inst->extra.size);
			}
		} else if (src_op.mode == MODE_REG_DISPLACE8) {
			dst = xor_rdisp8r(dst, src_op.base, src_op.disp, dst_op.base, inst->extra.size);
		} else {
			if (dst_op.mode == MODE_REG_DIRECT) {
				dst = xor_ir(dst, src_op.disp, dst_op.base, inst->extra.size);
			} else {
				dst = xor_irdisp8(dst, src_op.disp, dst_op.base, dst_op.disp, inst->extra.size);
			}
		}
		dst = mov_ir(dst, 0, FLAG_C, SZ_B);
		dst = setcc_r(dst, CC_Z, FLAG_Z);
		dst = setcc_r(dst, CC_S, FLAG_N);
		dst = mov_ir(dst, 0, FLAG_V, SZ_B);
		dst = m68k_save_result(inst, dst, opts);
		break;
	/*case M68K_EORI_CCR:
	case M68K_EORI_SR:*/
	case M68K_EXG:
		dst = cycles(dst, 6);
		if (dst_op.mode == MODE_REG_DIRECT) {
			dst = mov_rr(dst, dst_op.base, SCRATCH2, SZ_D);
			if (src_op.mode == MODE_REG_DIRECT) {
				dst = mov_rr(dst, src_op.base, dst_op.base, SZ_D);
				dst = mov_rr(dst, SCRATCH2, src_op.base, SZ_D);
			} else {
				dst = mov_rdisp8r(dst, src_op.base, src_op.disp, dst_op.base, SZ_D);
				dst = mov_rrdisp8(dst, SCRATCH2, src_op.base, src_op.disp, SZ_D);
			}
		} else {
			dst = mov_rdisp8r(dst, dst_op.base, dst_op.disp, SCRATCH2, SZ_D);
			if (src_op.mode == MODE_REG_DIRECT) {
				dst = mov_rrdisp8(dst, src_op.base, dst_op.base, dst_op.disp, SZ_D);
				dst = mov_rr(dst, SCRATCH2, src_op.base, SZ_D);
			} else {
				dst = mov_rdisp8r(dst, src_op.base, src_op.disp, SCRATCH1, SZ_D);
				dst = mov_rrdisp8(dst, SCRATCH1, dst_op.base, dst_op.disp, SZ_D);
				dst = mov_rrdisp8(dst, SCRATCH2, src_op.base, src_op.disp, SZ_D);
			}
		}
		break;
	//case M68K_EXT:
	//	break;
	case M68K_ILLEGAL:
		dst = call(dst, (uint8_t *)m68k_save_context);
		dst = mov_rr(dst, CONTEXT, RDI, SZ_Q);
		dst = call(dst, (uint8_t *)print_regs_exit);
		break;
	/*case M68K_MOVE_FROM_SR:
		break;*/
	case M68K_MOVE_CCR:
	case M68K_MOVE_SR:
		//TODO: Privilege check for MOVE to SR
		if (src_op.mode == MODE_IMMED) {
			dst = mov_ir(dst, src_op.disp & 0x1, FLAG_C, SZ_B);
			dst = mov_ir(dst, (src_op.disp >> 1) & 0x1, FLAG_V, SZ_B);
			dst = mov_ir(dst, (src_op.disp >> 2) & 0x1, FLAG_Z, SZ_B);
			dst = mov_ir(dst, (src_op.disp >> 3) & 0x1, FLAG_N, SZ_B);
			dst = mov_irind(dst, (src_op.disp >> 4) & 0x1, CONTEXT, SZ_B);
			if (inst->op == M68K_MOVE_SR) {
				dst = mov_irdisp8(dst, (src_op.disp >> 8), CONTEXT, offsetof(m68k_context, status), SZ_B);
				if (!((inst->src.params.immed >> 8) & (1 << BIT_SUPERVISOR))) {
					//leave supervisor mode
					dst = mov_rr(dst, opts->aregs[7], SCRATCH1, SZ_D);
					dst = mov_rdisp8r(dst, CONTEXT, offsetof(m68k_context, aregs) + sizeof(uint32_t) * 8, opts->aregs[7], SZ_D);
					dst = mov_rrdisp8(dst, SCRATCH1, CONTEXT, offsetof(m68k_context, aregs) + sizeof(uint32_t) * 8, SZ_D);
				}
			}
			dst = cycles(dst, 12);
		} else {
			if (src_op.base != SCRATCH1) {
				if (src_op.mode == MODE_REG_DIRECT) {
					dst = mov_rr(dst, src_op.base, SCRATCH1, SZ_W);
				} else {
					dst = mov_rdisp8r(dst, src_op.base, src_op.disp, SCRATCH1, SZ_W);
				}
			}
			dst = call(dst, (uint8_t *)(inst->op == M68K_MOVE_SR ? set_sr : set_ccr));
			dst = cycles(dst, 12);
			
		}
		break;
	case M68K_MOVE_USP:
		dst = cycles(dst, BUS);
		//TODO: Trap if not in supervisor mode
		//dst = bt_irdisp8(dst, BIT_SUPERVISOR, CONTEXT, offsetof(m68k_context, status), SZ_B);
		if (inst->src.addr_mode == MODE_UNUSED) {
			if (dst_op.mode == MODE_REG_DIRECT) {
				dst = mov_rdisp8r(dst, CONTEXT, offsetof(m68k_context, aregs) + sizeof(uint32_t) * 8, dst_op.base, SZ_D);
			} else {
				dst = mov_rdisp8r(dst, CONTEXT, offsetof(m68k_context, aregs) + sizeof(uint32_t) * 8, SCRATCH1, SZ_D);
				dst = mov_rrdisp8(dst, SCRATCH1, dst_op.base, dst_op.disp, SZ_D);
			}
		} else {
			if (src_op.mode == MODE_REG_DIRECT) {
				dst = mov_rrdisp8(dst, src_op.base, CONTEXT, offsetof(m68k_context, aregs) + sizeof(uint32_t) * 8, SZ_D);
			} else {
				dst = mov_rdisp8r(dst, src_op.base, src_op.disp, SCRATCH1, SZ_D);
				dst = mov_rrdisp8(dst, SCRATCH1, CONTEXT, offsetof(m68k_context, aregs) + sizeof(uint32_t) * 8, SZ_D);
			}
		}
		break;
	/*case M68K_MOVEP:
	case M68K_MULS:
	case M68K_MULU:
	case M68K_NBCD:*/
	case M68K_NEG:
		if (dst_op.mode == MODE_REG_DIRECT) {
			dst = neg_r(dst, dst_op.base, inst->extra.size);
		} else {
			dst = not_rdisp8(dst, dst_op.base, dst_op.disp, inst->extra.size);
		}
		dst = mov_ir(dst, 0, FLAG_C, SZ_B);
		dst = setcc_r(dst, CC_Z, FLAG_Z);
		dst = setcc_r(dst, CC_S, FLAG_N);
		dst = mov_ir(dst, 0, FLAG_V, SZ_B);
		dst = m68k_save_result(inst, dst, opts);
		break;
	/*case M68K_NEGX:
		break;*/
	case M68K_NOP:
		dst = cycles(dst, BUS);
		break;
	case M68K_NOT:
		if (dst_op.mode == MODE_REG_DIRECT) {
			dst = not_r(dst, dst_op.base, inst->extra.size);
		} else {
			dst = not_rdisp8(dst, dst_op.base, dst_op.disp, inst->extra.size);
		}
		dst = mov_ir(dst, 0, FLAG_C, SZ_B);
		dst = setcc_r(dst, CC_Z, FLAG_Z);
		dst = setcc_r(dst, CC_S, FLAG_N);
		dst = mov_ir(dst, 0, FLAG_V, SZ_B);
		dst = m68k_save_result(inst, dst, opts);
		break;
	case M68K_OR:
		dst = cycles(dst, BUS);
		if (src_op.mode == MODE_REG_DIRECT) {
			if (dst_op.mode == MODE_REG_DIRECT) {
				dst = or_rr(dst, src_op.base, dst_op.base, inst->extra.size);
			} else {
				dst = or_rrdisp8(dst, src_op.base, dst_op.base, dst_op.disp, inst->extra.size);
			}
		} else if (src_op.mode == MODE_REG_DISPLACE8) {
			dst = or_rdisp8r(dst, src_op.base, src_op.disp, dst_op.base, inst->extra.size);
		} else {
			if (dst_op.mode == MODE_REG_DIRECT) {
				dst = or_ir(dst, src_op.disp, dst_op.base, inst->extra.size);
			} else {
				dst = or_irdisp8(dst, src_op.disp, dst_op.base, dst_op.disp, inst->extra.size);
			}
		}
		dst = mov_ir(dst, 0, FLAG_C, SZ_B);
		dst = setcc_r(dst, CC_Z, FLAG_Z);
		dst = setcc_r(dst, CC_S, FLAG_N);
		dst = mov_ir(dst, 0, FLAG_V, SZ_B);
		dst = m68k_save_result(inst, dst, opts);
		break;
	/*case M68K_ORI_CCR:
	case M68K_ORI_SR:
	case M68K_PEA:
	case M68K_RESET:
	case M68K_ROL:
	case M68K_ROR:
	case M68K_ROXL:
	case M68K_ROXR:*/
	case M68K_RTE:
		dst = mov_rr(dst, opts->aregs[7], SCRATCH1, SZ_D);
		dst = call(dst, (uint8_t *)m68k_read_long_scratch1);
		dst = push_r(dst, SCRATCH1);
		dst = add_ir(dst, 4, opts->aregs[7], SZ_D);
		dst = mov_rr(dst, opts->aregs[7], SCRATCH1, SZ_D);
		dst = call(dst, (uint8_t *)m68k_read_word_scratch1);
		dst = add_ir(dst, 2, opts->aregs[7], SZ_D);
		dst = call(dst, (uint8_t *)set_sr);
		dst = pop_r(dst, SCRATCH1);
		dst = bt_irdisp8(dst, 5, CONTEXT, offsetof(m68k_context, status), SZ_B);
		end_off = dst+1;
		dst = jcc(dst, CC_NC, dst+2);
		dst = mov_rr(dst, opts->aregs[7], SCRATCH2, SZ_D);
		dst = mov_rdisp8r(dst, CONTEXT, offsetof(m68k_context, aregs) + sizeof(uint32_t) * 8, opts->aregs[7], SZ_D);
		dst = mov_rrdisp8(dst, SCRATCH2, CONTEXT, offsetof(m68k_context, aregs) + sizeof(uint32_t) * 8, SZ_D);
		*end_off = dst - (end_off+1);
		dst = call(dst, (uint8_t *)m68k_native_addr_and_sync);
		dst = jmp_r(dst, SCRATCH1);
		break;
	/*case M68K_RTR:
	case M68K_SBCD:
	case M68K_SCC:
	case M68K_STOP:
		break;*/
	case M68K_SUB:
		dst = cycles(dst, BUS);
		if (src_op.mode == MODE_REG_DIRECT) {
			if (dst_op.mode == MODE_REG_DIRECT) {
				dst = sub_rr(dst, src_op.base, dst_op.base, inst->extra.size);
			} else {
				dst = sub_rrdisp8(dst, src_op.base, dst_op.base, dst_op.disp, inst->extra.size);
			}
		} else if (src_op.mode == MODE_REG_DISPLACE8) {
			dst = sub_rdisp8r(dst, src_op.base, src_op.disp, dst_op.base, inst->extra.size);
		} else {
			if (dst_op.mode == MODE_REG_DIRECT) {
				dst = sub_ir(dst, src_op.disp, dst_op.base, inst->extra.size);
			} else {
				dst = sub_irdisp8(dst, src_op.disp, dst_op.base, dst_op.disp, inst->extra.size);
			}
		}
		dst = setcc_r(dst, CC_C, FLAG_C);
		dst = setcc_r(dst, CC_Z, FLAG_Z);
		dst = setcc_r(dst, CC_S, FLAG_N);
		dst = setcc_r(dst, CC_O, FLAG_V);
		dst = mov_rrind(dst, FLAG_C, CONTEXT, SZ_B);
		dst = m68k_save_result(inst, dst, opts);
		break;
	//case M68K_SUBX:
	//	break;
	case M68K_SWAP:
		dst = cycles(dst, BUS);
		if (src_op.mode == MODE_REG_DIRECT) {
			dst = rol_ir(dst, 16, src_op.base, inst->extra.size);
		} else{
			dst = rol_irdisp8(dst, 16, src_op.base, src_op.disp, inst->extra.size);
		}
		dst = mov_ir(dst, 0, FLAG_C, SZ_B);
		dst = setcc_r(dst, CC_Z, FLAG_Z);
		dst = setcc_r(dst, CC_S, FLAG_N);
		dst = mov_ir(dst, 0, FLAG_V, SZ_B);
		break;
	/*case M68K_TAS:
	case M68K_TRAP:
	case M68K_TRAPV:*/
	case M68K_TST:
		dst = cycles(dst, BUS);
		if (src_op.mode == MODE_REG_DIRECT) {
			dst = cmp_ir(dst, 0, src_op.base, inst->extra.size);
		} else { //M68000 doesn't support immedate operand for tst, so this must be MODE_REG_DISPLACE8
			dst = cmp_irdisp8(dst, 0, src_op.base, src_op.disp, inst->extra.size);
		}
		dst = setcc_r(dst, CC_C, FLAG_C);
		dst = setcc_r(dst, CC_Z, FLAG_Z);
		dst = setcc_r(dst, CC_S, FLAG_N);
		dst = setcc_r(dst, CC_O, FLAG_V);
		break;
	case M68K_UNLK:
		dst = cycles(dst, BUS);
		if (dst_op.mode == MODE_REG_DIRECT) {
			dst = mov_rr(dst, dst_op.base, opts->aregs[7], SZ_D);
		} else {
			dst = mov_rdisp8r(dst, dst_op.base, dst_op.disp, opts->aregs[7], SZ_D);
		}
		dst = mov_rr(dst, opts->aregs[7], SCRATCH1, SZ_D);
		dst = call(dst, (uint8_t *)m68k_read_long_scratch1);
		if (dst_op.mode == MODE_REG_DIRECT) {
			dst = mov_rr(dst, SCRATCH1, dst_op.base, SZ_D);
		} else {
			dst = mov_rrdisp8(dst, SCRATCH1, dst_op.base, dst_op.disp, SZ_D);
		}
		dst = add_ir(dst, 4, opts->aregs[7], SZ_D);
		break;
	/*case M68K_INVALID:
		break;*/
	default:
		printf("instruction %d not yet implemented\n", inst->op);
		exit(1);
	}
	return dst;
}

uint8_t * translate_m68k_stream(uint32_t address, m68k_context * context)
{
	m68kinst instbuf;
	x86_68k_options * opts = context->options;
	uint8_t * dst = opts->cur_code;
	uint8_t * dst_end = opts->code_end; 
	if(get_native_address(opts->native_code_map, address)) {
		return dst;
	}
	char disbuf[1024];
	uint16_t *encoded, *next;
	if ((address & 0xFFFFFF) < 0x400000) {
		encoded = context->mem_pointers[0] + (address & 0xFFFFFF)/2;
	} else if ((address & 0xFFFFFF) > 0xE00000) {
		encoded = context->mem_pointers[1] + (address  & 0xFFFF)/2;
	} else {
		printf("attempt to translate non-memory address: %X\n", address);
		exit(1);
	}
	do {
		do {
			if (dst_end-dst < 128) {
				if (dst_end-dst < 5) {
					puts("out of code memory, not enough space for jmp to next chunk");
					exit(1);
				}
				size_t size = 1024*1024;
				opts->cur_code = alloc_code(&size);
				opts->code_end = opts->cur_code + size;
				jmp(dst, opts->cur_code);
				dst = opts->cur_code;
				dst_end = opts->code_end;
			}
			next = m68k_decode(encoded, &instbuf, address);
			address += (next-encoded)*2;
			encoded = next;
			m68k_disasm(&instbuf, disbuf);
			printf("%X: %s\n", instbuf.address, disbuf);
			dst = translate_m68k(dst, &instbuf, opts);
		} while(instbuf.op != M68K_ILLEGAL && instbuf.op != M68K_RTS && instbuf.op != M68K_RTE && !(instbuf.op == M68K_BCC && instbuf.extra.cond == COND_TRUE) && instbuf.op != M68K_JMP);
		process_deferred(opts);
		if (opts->deferred) {
			address = opts->deferred->address;
			encoded = context->mem_pointers[0] + address/2;
		} else {
			encoded = NULL;
		}
	} while(encoded != NULL);
	opts->cur_code = dst;
	return dst;
}

uint8_t * get_native_address_trans(m68k_context * context, uint32_t address)
{
	address &= 0xFFFFFF;
	uint8_t * ret = get_native_address(context->native_code_map, address);
	if (!ret) {
		translate_m68k_stream(address, context);
		ret = get_native_address(context->native_code_map, address);
	}
	return ret;
}

void start_68k_context(m68k_context * context, uint32_t address)
{
	uint8_t * addr = get_native_address(context->native_code_map, address);
	m68k_start_context(addr, context);
}

void m68k_reset(m68k_context * context)
{
	//TODO: Make this actually use the normal read functions
	context->aregs[7] = context->mem_pointers[0][0] << 16 | context->mem_pointers[0][1];
	uint32_t address = context->mem_pointers[0][2] << 16 | context->mem_pointers[0][3];
	start_68k_context(context, address);
}

void init_x86_68k_opts(x86_68k_options * opts)
{
	opts->flags = 0;
	for (int i = 0; i < 8; i++)
		opts->dregs[i] = opts->aregs[i] = -1;
	opts->dregs[0] = R10;
	opts->dregs[1] = R11;
	opts->dregs[2] = R12;
	opts->aregs[0] = R13;
	opts->aregs[1] = R14;
	opts->aregs[7] = R15;
	opts->native_code_map = malloc(sizeof(native_map_slot) * NATIVE_MAP_CHUNKS);
	memset(opts->native_code_map, 0, sizeof(native_map_slot) * NATIVE_MAP_CHUNKS);
	opts->deferred = NULL;
	size_t size = 1024 * 1024;
	opts->cur_code = alloc_code(&size);
	opts->code_end = opts->cur_code + size;
}

void init_68k_context(m68k_context * context, native_map_slot * native_code_map, void * opts)
{
	memset(context, 0, sizeof(m68k_context));
	context->native_code_map = native_code_map;
	context->options = opts;
	context->int_cycle = 0xFFFFFFFF;
}