xref: /dports/games/libretro-hatari/hatari-561c07e/src/cpu/jit/gencomp.c

/*
 * UAE - The Un*x Amiga Emulator
 *
 * MC68000 compilation generator
 *
 * Based on work Copyright 1995, 1996 Bernd Schmidt. Changes Copyright 2000
 * Bernd Meyer
 */

#include "sysconfig.h"
#include "sysdeps.h"
#include <ctype.h>

#include "readcpu.h"

#include <stdio.h>
#include <stdarg.h>

#define BOOL_TYPE "int"
#define failure global_failure=1
#define FAILURE global_failure=1
#define isjump  global_isjump=1
#define is_const_jump global_iscjump=1;
#define isaddx  global_isaddx=1
#define uses_cmov global_cmov=1
#define mayfail global_mayfail=1

int hack_opcode;

static int global_failure;
static int global_isjump;
static int global_iscjump;
static int global_isaddx;
static int global_cmov;
static int long_opcode;
static int global_mayfail;

static char endstr[1000];
static char lines[100000];
static int comp_index=0;

static int cond_codes_x86[]={-1,-1,7,6,3,2,5,4,-1,-1,9,8,13,12,15,14};

static void comprintf(const char* format, ...)
{
    va_list args;

    va_start(args,format);
    comp_index+=vsprintf(lines+comp_index,format,args);
}

static void com_discard(void)
{
    comp_index=0;
}

static void com_flush(void)
{
    int i;
    for (i=0;i<comp_index;i++)
	putchar(lines[i]);
    com_discard();
}


static FILE *headerfile;
static FILE *stblfile;

static int using_prefetch;
static int using_exception_3;
static int cpu_level;
static int noflags;

/* For the current opcode, the next lower level that will have different code.
 * Initialized to -1 for each opcode. If it remains unchanged, indicates we
 * are done with that opcode.  */
static int next_cpu_level;

static int *opcode_map;
static int *opcode_next_clev;
static int *opcode_last_postfix;
static unsigned long *counts;

static void
read_counts (void)
{
    FILE *file;
    unsigned long opcode, count = 0, total;
    char name[20];
    int nr = 0;
    memset (counts, 0, 65536 * sizeof *counts);

    file = fopen ("frequent.68k", "r");
    if (file)
    {
	fscanf (file, "Total: %lu\n", &total);
	while (fscanf (file, "%lx: %lu %s\n", &opcode, &count, name) == 3)
	{
	    opcode_next_clev[nr] = 5;
	    opcode_last_postfix[nr] = -1;
	    opcode_map[nr++] = opcode;
	    counts[opcode] = count;
	}
	fclose (file);
    }
    if (nr == nr_cpuop_funcs)
	return;
    for (opcode = 0; opcode < 0x10000; opcode++)
    {
	if (table68k[opcode].handler == -1 && table68k[opcode].mnemo != i_ILLG
	    && counts[opcode] == 0)
	{
	    opcode_next_clev[nr] = 5;
	    opcode_last_postfix[nr] = -1;
	    opcode_map[nr++] = opcode;
	    counts[opcode] = count;
	}
    }
    if (nr != nr_cpuop_funcs)
	abort ();
}

static int n_braces = 0;
static int insn_n_cycles;

static void
start_brace (void)
{
    n_braces++;
    comprintf ("{");
}

static void
close_brace (void)
{
    assert (n_braces > 0);
    n_braces--;
    comprintf ("}");
}

static void
finish_braces (void)
{
    while (n_braces > 0)
	close_brace ();
}

static void
pop_braces (int to)
{
    while (n_braces > to)
	close_brace ();
}

static int
bit_size (int size)
{
    switch (size)
    {
     case sz_byte:
	return 8;
     case sz_word:
	return 16;
     case sz_long:
	return 32;
     default:
	abort ();
    }
    return 0;
}

static const char *
bit_mask (int size)
{
    switch (size)
    {
     case sz_byte:
	return "0xff";
     case sz_word:
	return "0xffff";
     case sz_long:
	return "0xffffffff";
     default:
	abort ();
    }
    return 0;
}

static __inline__ void gen_update_next_handler(void)
{
    return; /* Can anything clever be done here? */
}

static void gen_writebyte (char* address, char* source)
{
    comprintf("\twritebyte(%s,%s,scratchie);\n",address,source);
}

static void gen_writeword (char* address, char* source)
{
    comprintf("\twriteword(%s,%s,scratchie);\n",address,source);
}

static void gen_writelong (char* address, char* source)
{
    comprintf("\twritelong(%s,%s,scratchie);\n",address,source);
}

static void gen_readbyte (char* address, char* dest)
{
    comprintf("\treadbyte(%s,%s,scratchie);\n",address,dest);
}

static void gen_readword (char* address, char* dest)
{
    comprintf("\treadword(%s,%s,scratchie);\n",address,dest);
}

static void gen_readlong (char* address, char* dest)
{
    comprintf("\treadlong(%s,%s,scratchie);\n",address,dest);
}



static const char *
gen_nextilong (void)
{
    static char buffer[80];

    sprintf (buffer, "comp_get_ilong((m68k_pc_offset+=4)-4)");
    insn_n_cycles += 4;

    long_opcode=1;
    return buffer;
}

static const char *
gen_nextiword (void)
{
    static char buffer[80];

    sprintf (buffer, "comp_get_iword((m68k_pc_offset+=2)-2)");
    insn_n_cycles+=2;

    long_opcode=1;
    return buffer;
}

static const char *
gen_nextibyte (void)
{
    static char buffer[80];

    sprintf (buffer, "comp_get_ibyte((m68k_pc_offset+=2)-2)");
    insn_n_cycles += 2;

    long_opcode=1;
    return buffer;
}

static void
sync_m68k_pc (void)
{
    comprintf("\t if (m68k_pc_offset>100) sync_m68k_pc();\n");
}


/* getv == 1: fetch data; getv != 0: check for odd address. If movem != 0,
 * the calling routine handles Apdi and Aipi modes. */
static void
genamode (amodes mode, char *reg, wordsizes size, char *name, int getv, int movem)
{
    start_brace ();
    switch (mode)
    {
     case Dreg: /* Do we need to check dodgy here? */
	if (movem)
	    abort ();
	if (getv == 1 || getv==2) {
	    /* We generate the variable even for getv==2, so we can use
	       it as a destination for MOVE */
	    comprintf ("\tint %s=%s;\n",name,reg);
	}
	return;

     case Areg:
	if (movem)
	    abort ();
	if (getv == 1 || getv==2) {
	    /* see above */
	    comprintf ("\tint %s=dodgy?scratchie++:%s+8;\n",name,reg);
	    if (getv==1) {
		comprintf ("\tif (dodgy) \n");
		comprintf ("\t\tmov_l_rr(%s,%s+8);\n",name, reg);
	    }
	}
	return;

     case Aind:
	comprintf ("\tint %sa=dodgy?scratchie++:%s+8;\n",name,reg);
	comprintf ("\tif (dodgy) \n");
	comprintf ("\t\tmov_l_rr(%sa,%s+8);\n",name, reg);
	break;
     case Aipi:
	comprintf ("\tint %sa=scratchie++;\n",name,reg);
	comprintf ("\tmov_l_rr(%sa,%s+8);\n",name, reg);
	break;
     case Apdi:
	switch (size)
	{
	 case sz_byte:
	    if (movem) {
		comprintf ("\tint %sa=dodgy?scratchie++:%s+8;\n",name,reg);
		comprintf ("\tif (dodgy) \n");
		comprintf("\tmov_l_rr(%sa,8+%s);\n",name,reg);
	    }
	    else {
		start_brace();
		comprintf ("\tint %sa=dodgy?scratchie++:%s+8;\n",name,reg);
		comprintf("\tlea_l_brr(%s+8,%s+8,(uae_s32)-areg_byteinc[%s]);\n",reg,reg,reg);
		comprintf ("\tif (dodgy) \n");
		comprintf("\tmov_l_rr(%sa,8+%s);\n",name,reg);
	    }
	    break;
	 case sz_word:
	    if (movem) {
		comprintf ("\tint %sa=dodgy?scratchie++:%s+8;\n",name,reg);
		comprintf ("\tif (dodgy) \n");
		comprintf("\tmov_l_rr(%sa,8+%s);\n",name,reg);
	    }
	    else {
		start_brace();
		comprintf ("\tint %sa=dodgy?scratchie++:%s+8;\n",name,reg);
		comprintf("\tlea_l_brr(%s+8,%s+8,-2);\n",reg,reg);
		comprintf ("\tif (dodgy) \n");
		comprintf("\tmov_l_rr(%sa,8+%s);\n",name,reg);
	    }
	    break;
	 case sz_long:
	    if (movem) {
		comprintf ("\tint %sa=dodgy?scratchie++:%s+8;\n",name,reg);
		comprintf ("\tif (dodgy) \n");
		comprintf("\tmov_l_rr(%sa,8+%s);\n",name,reg);
	    }
	    else {
		start_brace();
		comprintf ("\tint %sa=dodgy?scratchie++:%s+8;\n",name,reg);
		comprintf("\tlea_l_brr(%s+8,%s+8,-4);\n",reg,reg);
		comprintf ("\tif (dodgy) \n");
		comprintf("\tmov_l_rr(%sa,8+%s);\n",name,reg);
	    }
	    break;
	 default:
	    abort ();
	}
	break;
     case Ad16:
	comprintf("\tint %sa=scratchie++;\n",name);
	comprintf("\tmov_l_rr(%sa,8+%s);\n",name,reg);
	comprintf("\tlea_l_brr(%sa,%sa,(uae_s32)(uae_s16)%s);\n",name,name,gen_nextiword());
	break;
     case Ad8r:
	comprintf("\tint %sa=scratchie++;\n",name);
	comprintf("\tcalc_disp_ea_020(%s+8,%s,%sa,scratchie);\n",
		  reg,gen_nextiword(),name);
	break;

     case PC16:
	comprintf("\tint %sa=scratchie++;\n",name);
	comprintf("\tuae_u32 address=start_pc+((char *)comp_pc_p-(char *)start_pc_p)+m68k_pc_offset;\n");
	comprintf ("\tuae_s32 PC16off = (uae_s32)(uae_s16)%s;\n", gen_nextiword ());
	comprintf("\tmov_l_ri(%sa,address+PC16off);\n",name);
	break;

     case PC8r:
	comprintf("\tint pctmp=scratchie++;\n");
	comprintf("\tint %sa=scratchie++;\n",name);
	comprintf("\tuae_u32 address=start_pc+((char *)comp_pc_p-(char *)start_pc_p)+m68k_pc_offset;\n");
	start_brace();
	comprintf("\tmov_l_ri(pctmp,address);\n");

	comprintf("\tcalc_disp_ea_020(pctmp,%s,%sa,scratchie);\n",
		  gen_nextiword(),name);
	break;
     case absw:
	comprintf ("\tint %sa = scratchie++;\n",name);
	comprintf ("\tmov_l_ri(%sa,(uae_s32)(uae_s16)%s);\n", name, gen_nextiword ());
	break;
     case absl:
	comprintf ("\tint %sa = scratchie++;\n",name);
	comprintf ("\tmov_l_ri(%sa,%s); /* absl */\n", name, gen_nextilong ());
	break;
     case imm:
	if (getv != 1)
	    abort ();
	switch (size)
	{
	 case sz_byte:
	    comprintf ("\tint %s = scratchie++;\n",name);
	    comprintf ("\tmov_l_ri(%s,(uae_s32)(uae_s8)%s);\n", name, gen_nextibyte ());
	    break;
	 case sz_word:
	    comprintf ("\tint %s = scratchie++;\n",name);
	    comprintf ("\tmov_l_ri(%s,(uae_s32)(uae_s16)%s);\n", name, gen_nextiword ());
	    break;
	 case sz_long:
	    comprintf ("\tint %s = scratchie++;\n",name);
	    comprintf ("\tmov_l_ri(%s,%s);\n", name, gen_nextilong ());
	    break;
	 default:
	    abort ();
	}
	return;
     case imm0:
	if (getv != 1)
	    abort ();
	comprintf ("\tint %s = scratchie++;\n",name);
	comprintf ("\tmov_l_ri(%s,(uae_s32)(uae_s8)%s);\n", name, gen_nextibyte ());
	return;
     case imm1:
	if (getv != 1)
	    abort ();
	comprintf ("\tint %s = scratchie++;\n",name);
	comprintf ("\tmov_l_ri(%s,(uae_s32)(uae_s16)%s);\n", name, gen_nextiword ());
	return;
     case imm2:
	if (getv != 1)
	    abort ();
	comprintf ("\tint %s = scratchie++;\n",name);
	comprintf ("\tmov_l_ri(%s,%s);\n", name, gen_nextilong ());
	return;
     case immi:
	if (getv != 1)
	    abort ();
	comprintf ("\tint %s = scratchie++;\n",name);
	comprintf ("\tmov_l_ri(%s,%s);\n", name, reg);
	return;
     default:
	abort ();
    }

    /* We get here for all non-reg non-immediate addressing modes to
     * actually fetch the value. */
    if (getv == 1)
    {
	char astring[80];
	sprintf(astring,"%sa",name);
	switch (size)
	{
	 case sz_byte:
	    insn_n_cycles += 2;
	    break;
	 case sz_word:
	    insn_n_cycles += 2;
	    break;
	 case sz_long:
	    insn_n_cycles += 4;
	    break;
	 default:
	    abort ();
	}
	start_brace ();
	comprintf("\tint %s=scratchie++;\n",name);
	switch (size)
	{
	 case sz_byte:
	    gen_readbyte(astring,name);
	    break;
	 case sz_word:
	    gen_readword(astring,name);
	    break;
	 case sz_long:
	    gen_readlong(astring,name);
	    break;
	 default:
	    abort ();
	}
    }

    /* We now might have to fix up the register for pre-dec or post-inc
     * addressing modes. */
    if (!movem) {
	switch (mode)
	{
	 case Aipi:
	    switch (size)
	    {
	     case sz_byte:
		comprintf("\tlea_l_brr(%s+8,%s+8,areg_byteinc[%s]);\n",reg,reg,reg);
		break;
	     case sz_word:
		comprintf("\tlea_l_brr(%s+8,%s+8,2);\n",reg,reg,reg);
		break;
	     case sz_long:
		comprintf("\tlea_l_brr(%s+8,%s+8,4);\n",reg,reg);
		break;
	     default:
		abort ();
	    }
	    break;
	 case Apdi:
	    break;
	 default:
	    break;
	}
    }
}

static void
genastore (char *from, amodes mode, char *reg, wordsizes size, char *to)
{
    switch (mode)
    {
     case Dreg:
	switch (size)
	{
	 case sz_byte:
	    comprintf("\tif(%s!=%s)\n",reg,from);
	    comprintf ("\t\tmov_b_rr(%s,%s);\n", reg, from);
	    break;
	 case sz_word:
	    comprintf("\tif(%s!=%s)\n",reg,from);
	    comprintf ("\t\tmov_w_rr(%s,%s);\n", reg, from);
	    break;
	 case sz_long:
	    comprintf("\tif(%s!=%s)\n",reg,from);
	    comprintf ("\t\tmov_l_rr(%s,%s);\n", reg, from);
	    break;
	 default:
	    abort ();
	}
	break;
     case Areg:
	switch (size)
	{
	 case sz_word:
	    comprintf("\tif(%s+8!=%s)\n",reg,from);
	    comprintf ("\t\tmov_w_rr(%s+8,%s);\n", reg, from);
	    break;
	 case sz_long:
	    comprintf("\tif(%s+8!=%s)\n",reg,from);
	    comprintf ("\t\tmov_l_rr(%s+8,%s);\n", reg, from);
	    break;
	 default:
	    abort ();
	}
	break;

     case Apdi:
     case absw:
     case PC16:
     case PC8r:
     case Ad16:
     case Ad8r:
     case Aipi:
     case Aind:
     case absl:
     {
	 char astring[80];
	 sprintf(astring,"%sa",to);

	 switch (size)
	 {
	  case sz_byte:
	     insn_n_cycles += 2;
	     gen_writebyte(astring,from);
	     break;
	  case sz_word:
	     insn_n_cycles += 2;
	     gen_writeword(astring,from);
	     break;
	  case sz_long:
	     insn_n_cycles += 4;
	     gen_writelong(astring,from);
	     break;
	  default:
	     abort ();
	 }
     }
     break;
     case imm:
     case imm0:
     case imm1:
     case imm2:
     case immi:
	abort ();
	break;
     default:
	abort ();
    }
}
static void genmov16(uae_u32 opcode, struct instr *curi)
{
    comprintf("\tint src=scratchie++;\n");
    comprintf("\tint dst=scratchie++;\n");

    if ((opcode & 0xfff8) == 0xf620) {
	/* MOVE16 (Ax)+,(Ay)+ */
	comprintf("\tuae_u16 dstreg=((%s)>>12)&0x07;\n", gen_nextiword());
	comprintf("\tmov_l_rr(src,8+srcreg);\n");
	comprintf("\tmov_l_rr(dst,8+dstreg);\n");
    } else {
	/* Other variants */
	genamode (curi->smode, "srcreg", curi->size, "src", 0, 2);
	genamode (curi->dmode, "dstreg", curi->size, "dst", 0, 2);
	comprintf("\tmov_l_rr(src,srca);\n");
	comprintf("\tmov_l_rr(dst,dsta);\n");
    }

    /* Align on 16-byte boundaries */
    comprintf("\tand_l_ri(src,~15);\n");
    comprintf("\tand_l_ri(dst,~15);\n");


    if ((opcode & 0xfff8) == 0xf620) {
	comprintf("\tif (srcreg != dstreg)\n");
	comprintf("\tadd_l_ri(srcreg+8,16);\n");
	comprintf("\tadd_l_ri(dstreg+8,16);\n");
    } else if ((opcode & 0xfff8) == 0xf600)
	comprintf("\tadd_l_ri(srcreg+8,16);\n");
    else if ((opcode & 0xfff8) == 0xf608)
	comprintf("\tadd_l_ri(dstreg+8,16);\n");

    comprintf("\tif (special_mem) {\n");
    comprintf("\t\tint tmp=scratchie;\n");
    comprintf("\tscratchie+=4;\n"
	      "\treadlong(src,tmp,scratchie);\n"
	      "\twritelong_clobber(dst,tmp,scratchie);\n"
	      "\tadd_l_ri(src,4);\n"
	      "\tadd_l_ri(dst,4);\n"
	      "\treadlong(src,tmp,scratchie);\n"
	      "\twritelong_clobber(dst,tmp,scratchie);\n"
	      "\tadd_l_ri(src,4);\n"
	      "\tadd_l_ri(dst,4);\n"
	      "\treadlong(src,tmp,scratchie);\n"
	      "\twritelong_clobber(dst,tmp,scratchie);\n"
	      "\tadd_l_ri(src,4);\n"
	      "\tadd_l_ri(dst,4);\n"
	      "\treadlong(src,tmp,scratchie);\n"
	      "\twritelong_clobber(dst,tmp,scratchie);\n");
    comprintf("\t} else {\n");
    comprintf("\t\tint tmp=scratchie;\n");
    comprintf("\tscratchie+=4;\n");
    comprintf("\tget_n_addr(src,src,scratchie);\n"
	      "\tget_n_addr(dst,dst,scratchie);\n"
	      "\tmov_l_rR(tmp+0,src,0);\n"
	      "\tmov_l_rR(tmp+1,src,4);\n"
	      "\tmov_l_rR(tmp+2,src,8);\n"
	      "\tmov_l_rR(tmp+3,src,12);\n"
	      "\tmov_l_Rr(dst,tmp+0,0);\n"
	      "\tforget_about(tmp+0);\n"
	      "\tmov_l_Rr(dst,tmp+1,4);\n"
	      "\tforget_about(tmp+1);\n"
	      "\tmov_l_Rr(dst,tmp+2,8);\n"
	      "\tforget_about(tmp+2);\n"
	      "\tmov_l_Rr(dst,tmp+3,12);\t}\n");

}

#if 0
static void genmov16(void)
{
    comprintf("\tint src=scratchie++;\n"
	      "\tuae_u16 dstreg=((%s)>>12)&0x07;\n",gen_nextiword());
    comprintf("\tint dst=scratchie++;\n"
	      "\tint tmp=scratchie;\n"
	      "\tscratchie+=4;\n"
	      "\tmov_l_rr(src,8+srcreg);\n"
	      "\tand_l_ri(src,~15);\n"
	      "\tmov_l_rr(dst,8+dstreg);\n"
	      "\tand_l_ri(dst,~15);\n"
	      "\tadd_l_ri(srcreg+8,16);\n"
	      "\tadd_l_ri(dstreg+8,16);\n");

    comprintf("\tif (special_mem) {\n"
	      "\treadlong(src,tmp,scratchie);\n"
	      "\twritelong_clobber(dst,tmp,scratchie);\n"
	      "\tadd_l_ri(src,4);\n"
	      "\tadd_l_ri(dst,4);\n"
	      "\treadlong(src,tmp,scratchie);\n"
	      "\twritelong_clobber(dst,tmp,scratchie);\n"
	      "\tadd_l_ri(src,4);\n"
	      "\tadd_l_ri(dst,4);\n"
	      "\treadlong(src,tmp,scratchie);\n"
	      "\twritelong_clobber(dst,tmp,scratchie);\n"
	      "\tadd_l_ri(src,4);\n"
	      "\tadd_l_ri(dst,4);\n"
	      "\treadlong(src,tmp,scratchie);\n"
	      "\twritelong_clobber(dst,tmp,scratchie);\n");
    comprintf("\t} else {\n");
    comprintf("\tget_n_addr(src,src,scratchie);\n"
	      "\tget_n_addr(dst,dst,scratchie);\n"
	      "\tmov_l_rR(tmp+0,src,0);\n"
	      "\tmov_l_rR(tmp+1,src,4);\n"
	      "\tmov_l_rR(tmp+2,src,8);\n"
	      "\tmov_l_rR(tmp+3,src,12);\n"
	      "\tmov_l_Rr(dst,tmp+0,0);\n"
	      "\tforget_about(tmp+0);\n"
	      "\tmov_l_Rr(dst,tmp+1,4);\n"
	      "\tforget_about(tmp+1);\n"
	      "\tmov_l_Rr(dst,tmp+2,8);\n"
	      "\tforget_about(tmp+2);\n"
	      "\tmov_l_Rr(dst,tmp+3,12);\n"
	      "\t}\n");
}
#endif

static void
genmovemel (uae_u16 opcode)
{
    comprintf ("\tuae_u16 mask = %s;\n", gen_nextiword ());
    comprintf ("\tint native=scratchie++;\n");
    comprintf ("\tint i;\n");
    comprintf ("\tint offset=0;\n");
    genamode (table68k[opcode].dmode, "dstreg", table68k[opcode].size, "src", 2, 1);
    comprintf("\tif (1 && !special_mem) {\n");

    /* Fast but unsafe...  */
    comprintf("\tget_n_addr(srca,native,scratchie);\n");


    comprintf("\tfor (i=0;i<16;i++) {\n"
	      "\t\tif ((mask>>i)&1) {\n");
    switch(table68k[opcode].size) {
     case sz_long:
	comprintf("\t\t\tmov_l_rR(i,native,offset);\n"
		  "\t\t\tgen_bswap_32(i);\n"
		  "\t\t\toffset+=4;\n");
	break;
     case sz_word:
	comprintf("\t\t\tmov_w_rR(i,native,offset);\n"
		  "\t\t\tgen_bswap_16(i);\n"
		  "\t\t\tsign_extend_16_rr(i,i);\n"
		  "\t\t\toffset+=2;\n");
	break;
     default: abort();
    }
    comprintf("\t\t}\n"
	      "\t}");
    if (table68k[opcode].dmode == Aipi) {
	comprintf("\t\t\tlea_l_brr(8+dstreg,srca,offset);\n");
    }
    /* End fast but unsafe.   */

    comprintf("\t} else {\n");

    comprintf ("\tint tmp=scratchie++;\n");

    comprintf("\tmov_l_rr(tmp,srca);\n");
    comprintf("\tfor (i=0;i<16;i++) {\n"
	      "\t\tif ((mask>>i)&1) {\n");
    switch(table68k[opcode].size) {
    case sz_long:
	comprintf("\t\t\treadlong(tmp,i,scratchie);\n"
		  "\t\t\tadd_l_ri(tmp,4);\n");
	break;
    case sz_word:
	comprintf("\t\t\treadword(tmp,i,scratchie);\n"
		  "\t\t\tadd_l_ri(tmp,2);\n");
	break;
    default: abort();
    }

    comprintf("\t\t}\n"
	      "\t}");
    if (table68k[opcode].dmode == Aipi) {
	comprintf("\t\t\tmov_l_rr(8+dstreg,tmp);\n");
    }
    comprintf("\t}\n");

}


static void
genmovemle (uae_u16 opcode)
{
    comprintf ("\tuae_u16 mask = %s;\n", gen_nextiword ());
    comprintf ("\tint native=scratchie++;\n");
    comprintf ("\tint i;\n");
    comprintf ("\tint tmp=scratchie++;\n");
    comprintf ("\tsigned char offset=0;\n");
    genamode (table68k[opcode].dmode, "dstreg", table68k[opcode].size, "src", 2, 1);

    /* *Sigh* Some clever geek realized that the fastest way to copy a
       buffer from main memory to the gfx card is by using movmle. Good
       on her, but unfortunately, gfx mem isn't "real" mem, and thus that
       act of cleverness means that movmle must pay attention to special_mem,
       or Genetic Species is a rather boring-looking game ;-) */
    comprintf("\tif (1 && !special_mem) {\n");
    comprintf("\tget_n_addr(srca,native,scratchie);\n");

    if (table68k[opcode].dmode!=Apdi) {
	comprintf("\tfor (i=0;i<16;i++) {\n"
		  "\t\tif ((mask>>i)&1) {\n");
	switch(table68k[opcode].size) {
	 case sz_long:
	    comprintf("\t\t\tmov_l_rr(tmp,i);\n"
		      "\t\t\tgen_bswap_32(tmp);\n"
		      "\t\t\tmov_l_Rr(native,tmp,offset);\n"
		      "\t\t\toffset+=4;\n");
	    break;
	 case sz_word:
	    comprintf("\t\t\tmov_l_rr(tmp,i);\n"
		      "\t\t\tgen_bswap_16(tmp);\n"
		      "\t\t\tmov_w_Rr(native,tmp,offset);\n"
		      "\t\t\toffset+=2;\n");
	    break;
	 default: abort();
	}
    } else {  /* Pre-decrement */
	comprintf("\tfor (i=0;i<16;i++) {\n"
		  "\t\tif ((mask>>i)&1) {\n");
	switch(table68k[opcode].size) {
	 case sz_long:
	    comprintf("\t\t\toffset-=4;\n"
		      "\t\t\tmov_l_rr(tmp,15-i);\n"
		      "\t\t\tgen_bswap_32(tmp);\n"
		      "\t\t\tmov_l_Rr(native,tmp,offset);\n"
		      );
	    break;
	 case sz_word:
	    comprintf("\t\t\toffset-=2;\n"
		      "\t\t\tmov_l_rr(tmp,15-i);\n"
		      "\t\t\tgen_bswap_16(tmp);\n"
		      "\t\t\tmov_w_Rr(native,tmp,offset);\n"
		      );
	    break;
	 default: abort();
	}
    }

    comprintf("\t\t}\n"
	      "\t}");
    if (table68k[opcode].dmode == Apdi) {
	comprintf("\t\t\tlea_l_brr(8+dstreg,srca,(uae_s32)offset);\n");
    }
    comprintf("\t} else {\n");

    if (table68k[opcode].dmode!=Apdi) {
	comprintf("\tmov_l_rr(tmp,srca);\n");
	comprintf("\tfor (i=0;i<16;i++) {\n"
		  "\t\tif ((mask>>i)&1) {\n");
	switch(table68k[opcode].size) {
	 case sz_long:
	    comprintf("\t\t\twritelong(tmp,i,scratchie);\n"
		      "\t\t\tadd_l_ri(tmp,4);\n");
	    break;
	 case sz_word:
	    comprintf("\t\t\twriteword(tmp,i,scratchie);\n"
		      "\t\t\tadd_l_ri(tmp,2);\n");
	    break;
	 default: abort();
	}
    }
    else {  /* Pre-decrement */
	comprintf("\tfor (i=0;i<16;i++) {\n"
		  "\t\tif ((mask>>i)&1) {\n");
	switch(table68k[opcode].size) {
	 case sz_long:
	    comprintf("\t\t\tsub_l_ri(srca,4);\n"
		      "\t\t\twritelong(srca,15-i,scratchie);\n");
	    break;
	 case sz_word:
	    comprintf("\t\t\tsub_l_ri(srca,2);\n"
		      "\t\t\twriteword(srca,15-i,scratchie);\n");
	    break;
	 default: abort();
	}
    }


    comprintf("\t\t}\n"
	      "\t}");
    if (table68k[opcode].dmode == Apdi) {
	comprintf("\t\t\tmov_l_rr(8+dstreg,srca);\n");
    }
    comprintf("\t}\n");
}


static void
duplicate_carry (void)
{
    comprintf ("\tif (needed_flags&FLAG_X) duplicate_carry();\n");
}

typedef enum
{
    flag_logical_noclobber, flag_logical, flag_add, flag_sub, flag_cmp,
    flag_addx, flag_subx, flag_zn, flag_av, flag_sv, flag_and, flag_or,
    flag_eor, flag_mov
}
flagtypes;


static void
genflags (flagtypes type, wordsizes size, char *value, char *src, char *dst)
{
    if (noflags) {
	switch(type) {
	 case flag_cmp:
	    comprintf("\tdont_care_flags();\n");
	    comprintf("/* Weird --- CMP with noflags ;-) */\n");
	    return;
	 case flag_add:
	 case flag_sub:
	    comprintf("\tdont_care_flags();\n");
	    {
		char* op;
		switch(type) {
		 case flag_add: op="add"; break;
		 case flag_sub: op="sub"; break;
		 default: abort();
		}
		switch (size)
		{
		 case sz_byte:
		    comprintf("\t%s_b(%s,%s);\n",op,dst,src);
		    break;
		 case sz_word:
		    comprintf("\t%s_w(%s,%s);\n",op,dst,src);
		    break;
		 case sz_long:
		    comprintf("\t%s_l(%s,%s);\n",op,dst,src);
		    break;
		}
		return;
	    }
	    break;

	 case flag_and:
	    comprintf("\tdont_care_flags();\n");
	    switch (size)
	    {
	     case sz_byte:
		comprintf("if (kill_rodent(dst)) {\n");
		comprintf("\tzero_extend_8_rr(scratchie,%s);\n",src);
		comprintf("\tor_l_ri(scratchie,0xffffff00);\n");
		comprintf("\tand_l(%s,scratchie);\n",dst);
		comprintf("\tforget_about(scratchie);\n");
		comprintf("\t} else \n"
			  "\tand_b(%s,%s);\n",dst,src);
		break;
	     case sz_word:
		comprintf("if (kill_rodent(dst)) {\n");
		comprintf("\tzero_extend_16_rr(scratchie,%s);\n",src);
		comprintf("\tor_l_ri(scratchie,0xffff0000);\n");
		comprintf("\tand_l(%s,scratchie);\n",dst);
		comprintf("\tforget_about(scratchie);\n");
		comprintf("\t} else \n"
			  "\tand_w(%s,%s);\n",dst,src);
		break;
	     case sz_long:
		comprintf("\tand_l(%s,%s);\n",dst,src);
		break;
	    }
	    return;

	 case flag_mov:
	    comprintf("\tdont_care_flags();\n");
	    switch (size)
	    {
	     case sz_byte:
		comprintf("if (kill_rodent(dst)) {\n");
		comprintf("\tzero_extend_8_rr(scratchie,%s);\n",src);
		comprintf("\tand_l_ri(%s,0xffffff00);\n",dst);
		comprintf("\tor_l(%s,scratchie);\n",dst);
		comprintf("\tforget_about(scratchie);\n");
		comprintf("\t} else \n"
			  "\tmov_b_rr(%s,%s);\n",dst,src);
		break;
	     case sz_word:
		comprintf("if (kill_rodent(dst)) {\n");
		comprintf("\tzero_extend_16_rr(scratchie,%s);\n",src);
		comprintf("\tand_l_ri(%s,0xffff0000);\n",dst);
		comprintf("\tor_l(%s,scratchie);\n",dst);
		comprintf("\tforget_about(scratchie);\n");
		comprintf("\t} else \n"
			  "\tmov_w_rr(%s,%s);\n",dst,src);
		break;
	     case sz_long:
		comprintf("\tmov_l_rr(%s,%s);\n",dst,src);
		break;
	    }
	    return;

	 case flag_or:
	 case flag_eor:
	    comprintf("\tdont_care_flags();\n");
	    start_brace();
	    {
		char* op;
		switch(type) {
		 case flag_or:  op="or"; break;
		 case flag_eor: op="xor"; break;
		 default: abort();
		}
		switch (size)
		{
		 case sz_byte:
		    comprintf("if (kill_rodent(dst)) {\n");
		    comprintf("\tzero_extend_8_rr(scratchie,%s);\n",src);
		    comprintf("\t%s_l(%s,scratchie);\n",op,dst);
		    comprintf("\tforget_about(scratchie);\n");
		    comprintf("\t} else \n"
			      "\t%s_b(%s,%s);\n",op,dst,src);
		    break;
		 case sz_word:
		    comprintf("if (kill_rodent(dst)) {\n");
		    comprintf("\tzero_extend_16_rr(scratchie,%s);\n",src);
		    comprintf("\t%s_l(%s,scratchie);\n",op,dst);
		    comprintf("\tforget_about(scratchie);\n");
		    comprintf("\t} else \n"
			      "\t%s_w(%s,%s);\n",op,dst,src);
		    break;
		 case sz_long:
		    comprintf("\t%s_l(%s,%s);\n",op,dst,src);
		    break;
		}
		close_brace();
		return;
	    }


	 case flag_addx:
	 case flag_subx:

	    comprintf("\tdont_care_flags();\n");
	    {
		char* op;
		switch(type) {
		 case flag_addx: op="adc"; break;
		 case flag_subx: op="sbb"; break;
		 default: abort();
		}
		comprintf("\trestore_carry();\n"); /* Reload the X flag into C */
		switch (size)
		{
		 case sz_byte:
		    comprintf("\t%s_b(%s,%s);\n",op,dst,src);
		    break;
		 case sz_word:
		    comprintf("\t%s_w(%s,%s);\n",op,dst,src);
		    break;
		 case sz_long:
		    comprintf("\t%s_l(%s,%s);\n",op,dst,src);
		    break;
		}
		return;
	    }
	    break;
	 default: return;
	}
    }

    /* Need the flags, but possibly not all of them */
    switch (type)
    {
     case flag_logical_noclobber:
	failure;

     case flag_and:
     case flag_or:
     case flag_eor:
	comprintf("\tdont_care_flags();\n");
	start_brace();
	{
	    char* op;
	    switch(type) {
	     case flag_and: op="and"; break;
	     case flag_or:  op="or"; break;
	     case flag_eor: op="xor"; break;
	     default: abort();
	    }
	    switch (size)
	    {
	     case sz_byte:
		comprintf("\tstart_needflags();\n"
			  "\t%s_b(%s,%s);\n",op,dst,src);
		break;
	     case sz_word:
		comprintf("\tstart_needflags();\n"
			  "\t%s_w(%s,%s);\n",op,dst,src);
		break;
	     case sz_long:
		comprintf("\tstart_needflags();\n"
			  "\t%s_l(%s,%s);\n",op,dst,src);
		break;
	    }
	    comprintf("\tlive_flags();\n");
	    comprintf("\tend_needflags();\n");
	    close_brace();
	    return;
	}

     case flag_mov:
	comprintf("\tdont_care_flags();\n");
	start_brace();
	{
	    switch (size)
	    {
	     case sz_byte:
		comprintf("\tif (%s!=%s) {\n",src,dst);
		comprintf("\tmov_b_ri(%s,0);\n"
			  "\tstart_needflags();\n",dst);
		comprintf("\tor_b(%s,%s);\n",dst,src);
		comprintf("\t} else {\n");
		comprintf("\tmov_b_rr(%s,%s);\n",dst,src);
		comprintf("\ttest_b_rr(%s,%s);\n",dst,dst);
		comprintf("\t}\n");
		break;
	     case sz_word:
		comprintf("\tif (%s!=%s) {\n",src,dst);
		comprintf("\tmov_w_ri(%s,0);\n"
			  "\tstart_needflags();\n",dst);
		comprintf("\tor_w(%s,%s);\n",dst,src);
		comprintf("\t} else {\n");
		comprintf("\tmov_w_rr(%s,%s);\n",dst,src);
		comprintf("\ttest_w_rr(%s,%s);\n",dst,dst);
		comprintf("\t}\n");
		break;
	     case sz_long:
		comprintf("\tif (%s!=%s) {\n",src,dst);
		comprintf("\tmov_l_ri(%s,0);\n"
			  "\tstart_needflags();\n",dst);
		comprintf("\tor_l(%s,%s);\n",dst,src);
		comprintf("\t} else {\n");
		comprintf("\tmov_l_rr(%s,%s);\n",dst,src);
		comprintf("\ttest_l_rr(%s,%s);\n",dst,dst);
		comprintf("\t}\n");
		break;
	    }
	    comprintf("\tlive_flags();\n");
	    comprintf("\tend_needflags();\n");
	    close_brace();
	    return;
	}

     case flag_logical:
	comprintf("\tdont_care_flags();\n");
	start_brace();
	switch (size)
	{
	 case sz_byte:
	    comprintf("\tstart_needflags();\n"
		      "\ttest_b_rr(%s,%s);\n",value,value);
	    break;
	 case sz_word:
	    comprintf("\tstart_needflags();\n"
		      "\ttest_w_rr(%s,%s);\n",value,value);
	    break;
	 case sz_long:
	    comprintf("\tstart_needflags();\n"
		      "\ttest_l_rr(%s,%s);\n",value,value);
	    break;
	}
	comprintf("\tlive_flags();\n");
	comprintf("\tend_needflags();\n");
	close_brace();
	return;


     case flag_add:
     case flag_sub:
     case flag_cmp:
	comprintf("\tdont_care_flags();\n");
	{
	    char* op;
	    switch(type) {
	     case flag_add: op="add"; break;
	     case flag_sub: op="sub"; break;
	     case flag_cmp: op="cmp"; break;
	     default: abort();
	    }
	    switch (size)
	    {
	     case sz_byte:
		comprintf("\tstart_needflags();\n"
			  "\t%s_b(%s,%s);\n",op,dst,src);
		break;
	     case sz_word:
		comprintf("\tstart_needflags();\n"
			  "\t%s_w(%s,%s);\n",op,dst,src);
		break;
	     case sz_long:
		comprintf("\tstart_needflags();\n"
			  "\t%s_l(%s,%s);\n",op,dst,src);
		break;
	    }
	    comprintf("\tlive_flags();\n");
	    comprintf("\tend_needflags();\n");
	    if (type!=flag_cmp) {
		duplicate_carry();
	    }
	    comprintf("if (!(needed_flags & FLAG_CZNV)) dont_care_flags();\n");

	    return;
	}

     case flag_addx:
     case flag_subx:
		 uses_cmov;
	comprintf("\tdont_care_flags();\n");
	{
	    char* op;
	    switch(type) {
	     case flag_addx: op="adc"; break;
	     case flag_subx: op="sbb"; break;
	     default: abort();
	    }
	    start_brace();
	    comprintf("\tint zero=scratchie++;\n"
		      "\tint one=scratchie++;\n"
		      "\tif (needed_flags&FLAG_Z) {\n"
		      "\tmov_l_ri(zero,0);\n"
		      "\tmov_l_ri(one,1);\n"
		      "\tmake_flags_live();\n"
		      "\tcmov_l_rr(zero,one,5);\n"
		      "\t}\n");
	    comprintf("\trestore_carry();\n"); /* Reload the X flag into C */
	    switch (size)
	    {
	     case sz_byte:
		comprintf("\tstart_needflags();\n"
			  "\t%s_b(%s,%s);\n",op,dst,src);
		break;
	     case sz_word:
		comprintf("\tstart_needflags();\n"
			  "\t%s_w(%s,%s);\n",op,dst,src);
		break;
	     case sz_long:
		comprintf("\tstart_needflags();\n"
			  "\t%s_l(%s,%s);\n",op,dst,src);
		break;
	    }
	    comprintf("\tlive_flags();\n");
	    comprintf("\tif (needed_flags&FLAG_Z) {\n"
		      "\tcmov_l_rr(zero,one,5);\n"
		      "\tsetzflg_l(zero);\n"
		      "\tlive_flags();\n"
		      "\t}\n");
	    comprintf("\tend_needflags();\n");
	    duplicate_carry();
	    comprintf("if (!(needed_flags & FLAG_CZNV)) dont_care_flags();\n");
	    return;
	}
     default:
	failure;
	break;
    }
}

static void
force_range_for_rox (const char *var, wordsizes size)
{
    /* Could do a modulo operation here... which one is faster? */
    switch (size)
    {
     case sz_long:
	comprintf ("\tif (%s >= 33) %s -= 33;\n", var, var);
	break;
     case sz_word:
	comprintf ("\tif (%s >= 34) %s -= 34;\n", var, var);
	comprintf ("\tif (%s >= 17) %s -= 17;\n", var, var);
	break;
     case sz_byte:
	comprintf ("\tif (%s >= 36) %s -= 36;\n", var, var);
	comprintf ("\tif (%s >= 18) %s -= 18;\n", var, var);
	comprintf ("\tif (%s >= 9) %s -= 9;\n", var, var);
	break;
    }
}

static const char *
cmask (wordsizes size)
{
    switch (size)
    {
     case sz_byte:
	return "0x80";
     case sz_word:
	return "0x8000";
     case sz_long:
	return "0x80000000";
     default:
	abort ();
    }
}

static int
source_is_imm1_8 (struct instr *i)
{
    return i->stype == 3;
}

static int  /* returns zero for success, non-zero for failure */
gen_opcode (unsigned long int opcode)
{
    struct instr *curi = table68k + opcode;
    char* ssize=NULL;

    insn_n_cycles = 2;
    global_failure=0;
    long_opcode=0;
    global_isjump=0;
    global_iscjump=0;
    global_isaddx=0;
    global_cmov=0;
    global_mayfail=0;
    hack_opcode=opcode;
    endstr[0]=0;

    start_brace ();
    comprintf("\tuae_u8 scratchie=S1;\n");
    switch (curi->plev)
    {
     case 0:			/* not privileged */
	break;
     case 1:			/* unprivileged only on 68000 */
	if (cpu_level == 0)
	    break;
	if (next_cpu_level < 0)
	    next_cpu_level = 0;

	/* fall through */
     case 2:			/* priviledged */
	failure;   /* Easy ones first */
	break;
     case 3:			/* privileged if size == word */
	if (curi->size == sz_byte)
	    break;
	failure;
	break;
    }
    switch (curi->size) {
     case sz_byte: ssize="b"; break;
     case sz_word: ssize="w"; break;
     case sz_long: ssize="l"; break;
     default: abort();
    }

    switch (curi->mnemo)
    {
     case i_OR:
     case i_AND:
     case i_EOR:
	genamode (curi->smode, "srcreg", curi->size, "src", 1, 0);
	genamode (curi->dmode, "dstreg", curi->size, "dst", 1, 0);
	switch(curi->mnemo) {
	 case i_OR: genflags (flag_or, curi->size, "", "src", "dst"); break;
	 case i_AND: genflags (flag_and, curi->size, "", "src", "dst"); break;
	 case i_EOR: genflags (flag_eor, curi->size, "", "src", "dst"); break;
	}
	genastore ("dst", curi->dmode, "dstreg", curi->size, "dst");
	break;

     case i_ORSR:
     case i_EORSR:
	failure;
	isjump;
	break;
     case i_ANDSR:
	failure;
	isjump;
	break;
     case i_SUB:
	genamode (curi->smode, "srcreg", curi->size, "src", 1, 0);
	genamode (curi->dmode, "dstreg", curi->size, "dst", 1, 0);
	genflags (flag_sub, curi->size, "", "src", "dst");
	genastore ("dst", curi->dmode, "dstreg", curi->size, "dst");
	break;
     case i_SUBA:
	genamode (curi->smode, "srcreg", curi->size, "src", 1, 0);
	genamode (curi->dmode, "dstreg", sz_long, "dst", 1, 0);
	start_brace();
	comprintf("\tint tmp=scratchie++;\n");
	switch(curi->size) {
	 case sz_byte: comprintf("\tsign_extend_8_rr(tmp,src);\n"); break;
	 case sz_word: comprintf("\tsign_extend_16_rr(tmp,src);\n"); break;
	 case sz_long: comprintf("\ttmp=src;\n"); break;
	 default: abort();
	}
	comprintf("\tsub_l(dst,tmp);\n");
	genastore ("dst", curi->dmode, "dstreg", sz_long, "dst");
	break;
     case i_SUBX:
	isaddx;
	genamode (curi->smode, "srcreg", curi->size, "src", 1, 0);
	genamode (curi->dmode, "dstreg", curi->size, "dst", 1, 0);
	genflags (flag_subx, curi->size, "", "src", "dst");
	genastore ("dst", curi->dmode, "dstreg", curi->size, "dst");
	break;
     case i_SBCD:
	failure;
	/* I don't think so! */
	break;
     case i_ADD:
	genamode (curi->smode, "srcreg", curi->size, "src", 1, 0);
	genamode (curi->dmode, "dstreg", curi->size, "dst", 1, 0);
	genflags (flag_add, curi->size, "", "src", "dst");
	genastore ("dst", curi->dmode, "dstreg", curi->size, "dst");
	break;
     case i_ADDA:
	genamode (curi->smode, "srcreg", curi->size, "src", 1, 0);
	genamode (curi->dmode, "dstreg", sz_long, "dst", 1, 0);
	start_brace();
	comprintf("\tint tmp=scratchie++;\n");
	switch(curi->size) {
	 case sz_byte: comprintf("\tsign_extend_8_rr(tmp,src);\n"); break;
	 case sz_word: comprintf("\tsign_extend_16_rr(tmp,src);\n"); break;
	 case sz_long: comprintf("\ttmp=src;\n"); break;
	 default: abort();
	}
	comprintf("\tadd_l(dst,tmp);\n");
	genastore ("dst", curi->dmode, "dstreg", sz_long, "dst");
	break;
     case i_ADDX:
	isaddx;
	genamode (curi->smode, "srcreg", curi->size, "src", 1, 0);
	genamode (curi->dmode, "dstreg", curi->size, "dst", 1, 0);
	start_brace();
	genflags (flag_addx, curi->size, "", "src", "dst");
	genastore ("dst", curi->dmode, "dstreg", curi->size, "dst");
	break;
     case i_ABCD:
	failure;
	/* No BCD maths for me.... */
	break;
     case i_NEG:
	genamode (curi->smode, "srcreg", curi->size, "src", 1, 0);
	start_brace ();
	comprintf("\tint dst=scratchie++;\n");
	comprintf("\tmov_l_ri(dst,0);\n");
	genflags (flag_sub, curi->size, "", "src", "dst");
	genastore ("dst", curi->smode, "srcreg", curi->size, "src");
	break;
     case i_NEGX:
	genamode (curi->smode, "srcreg", curi->size, "src", 1, 0);
	start_brace ();
	comprintf("\tint dst=scratchie++;\n");
	comprintf("\tmov_l_ri(dst,0);\n");
	genflags (flag_subx, curi->size, "", "src", "dst");
	genastore ("dst", curi->smode, "srcreg", curi->size, "src");
	break;

     case i_NBCD:
	failure;
	/* Nope! */
	break;
     case i_CLR:
	genamode (curi->smode, "srcreg", curi->size, "src", 2, 0);
	start_brace();
	comprintf("\tint dst=scratchie++;\n");
	comprintf("\tmov_l_ri(dst,0);\n");
	genflags (flag_logical, curi->size, "dst", "", "");
	genastore ("dst", curi->smode, "srcreg", curi->size, "src");
	break;
     case i_NOT:
	genamode (curi->smode, "srcreg", curi->size, "src", 1, 0);
	start_brace ();
	comprintf("\tint dst=scratchie++;\n");
	comprintf("\tmov_l_ri(dst,0xffffffff);\n");
	genflags (flag_eor, curi->size, "", "src", "dst");
	genastore ("dst", curi->smode, "srcreg", curi->size, "src");
	break;
     case i_TST:
	genamode (curi->smode, "srcreg", curi->size, "src", 1, 0);
	genflags (flag_logical, curi->size, "src", "", "");
	break;
     case i_BCHG:
     case i_BCLR:
     case i_BSET:
     case i_BTST:
			genamode (curi->smode, "srcreg", curi->size, "src", 1, 0);
	genamode (curi->dmode, "dstreg", curi->size, "dst", 1, 0);
	start_brace();
	comprintf("\tint s=scratchie++;\n"
		  "\tmov_l_rr(s,src);\n");
	if (curi->size == sz_byte)
	    comprintf("\tand_l_ri(s,7);\n");
	else
	    comprintf("\tand_l_ri(s,31);\n");

	{
	    char* op;
	    int need_write=1;

	    switch(curi->mnemo) {
	     case i_BCHG: op="btc"; break;
	     case i_BCLR: op="btr"; break;
	     case i_BSET: op="bts"; break;
	     case i_BTST: op="bt"; need_write=0; break;
	    }
	    comprintf("\t%s_l_rr(dst,s);\n"  /* Answer now in C */
				  "\tsbb_l(s,s);\n" /* s is 0 if bit was 0, -1 otherwise */
				  "\tmake_flags_live();\n" /* Get the flags back */
				  "\tdont_care_flags();\n",op);
		if (!noflags) {
		  comprintf("\tstart_needflags();\n"
					"\tsetzflg_l(s);\n"
					"\tlive_flags();\n"
					"\tend_needflags();\n");
		}
	    if (need_write)
		genastore ("dst", curi->dmode, "dstreg", curi->size, "dst");
	}
	break;
	/*if (!noflags) {
	    failure;
	    break;
	}
	genamode (curi->smode, "srcreg", curi->size, "src", 1, 0);
	genamode (curi->dmode, "dstreg", curi->size, "dst", 1, 0);
	start_brace();
	comprintf("\tint s=scratchie++;\n"
		  "\tmov_l_rr(s,src);\n");
	if (curi->size == sz_byte)
	    comprintf("\tand_l_ri(s,7);\n");
	else
	    comprintf("\tand_l_ri(s,31);\n");

	{
	    char* op;
	    int need_write=1;

	    switch(curi->mnemo) {
	     case i_BCHG: op="btc"; break;
	     case i_BCLR: op="btr"; break;
	     case i_BSET: op="bts"; break;
	     case i_BTST: op="bt"; need_write=0; break;
	    }
	    comprintf("\t%s_l_rr(dst,s);\n"  // Answer now in C
		      "\tsbb_l(s,s);\n" // s is 0 if bit was 0,  -1 otherwise
		      "\tmake_flags_live();\n" // Get the flags back
		      "\tdont_care_flags();\n"
		      "\tstart_needflags();\n"
		      "\tbsf_l_rr(s,s);\n"
		      "\tlive_flags();\n"
		      "\tend_needflags();\n",op);
	    if (need_write)
		genastore ("dst", curi->dmode, "dstreg", curi->size, "dst");
	}
	break;
*/
     case i_CMPM:
     case i_CMP:
	genamode (curi->smode, "srcreg", curi->size, "src", 1, 0);
	genamode (curi->dmode, "dstreg", curi->size, "dst", 1, 0);
	start_brace ();
	genflags (flag_cmp, curi->size, "", "src", "dst");
	break;
     case i_CMPA:
	genamode (curi->smode, "srcreg", curi->size, "src", 1, 0);
	genamode (curi->dmode, "dstreg", sz_long, "dst", 1, 0);
	start_brace();
	comprintf("\tint tmps=scratchie++;\n");
	switch(curi->size) {
	 case sz_byte: comprintf("\tsign_extend_8_rr(tmps,src);\n"); break;
	 case sz_word: comprintf("\tsign_extend_16_rr(tmps,src);\n"); break;
	 case sz_long: comprintf("tmps=src;\n"); break;
	 default: abort();
	}
	genflags (flag_cmp, sz_long, "", "tmps", "dst");
	break;
	/* The next two are coded a little unconventional, but they are doing
	 * weird things... */
     case i_MVPRM:
	isjump;
	failure;
	break;
     case i_MVPMR:
	isjump;
	failure;
	break;
     case i_MOVE:
	switch(curi->dmode) {
	 case Dreg:
	 case Areg:
	    genamode (curi->smode, "srcreg", curi->size, "src", 1, 0);
	    genamode (curi->dmode, "dstreg", curi->size, "dst", 2, 0);
	    genflags (flag_mov, curi->size, "", "src", "dst");
	    genastore ("dst", curi->dmode, "dstreg", curi->size, "dst");
	    break;
	 default: /* It goes to memory, not a register */
	    genamode (curi->smode, "srcreg", curi->size, "src", 1, 0);
	    genamode (curi->dmode, "dstreg", curi->size, "dst", 2, 0);
	    genflags (flag_logical, curi->size, "src", "", "");
	    genastore ("src", curi->dmode, "dstreg", curi->size, "dst");
	    break;
	}
	break;
     case i_MOVEA:
	genamode (curi->smode, "srcreg", curi->size, "src", 1, 0);
	genamode (curi->dmode, "dstreg", curi->size, "dst", 2, 0);

	start_brace();
	comprintf("\tint tmps=scratchie++;\n");
	switch(curi->size) {
	 case sz_word: comprintf("\tsign_extend_16_rr(dst,src);\n"); break;
	 case sz_long: comprintf("\tmov_l_rr(dst,src);\n"); break;
	 default: abort();
	}
	genastore ("dst", curi->dmode, "dstreg", sz_long, "dst");
	break;

     case i_MVSR2:
	isjump;
	failure;
	break;
     case i_MV2SR:
	isjump;
	failure;
	break;
     case i_SWAP:
	genamode (curi->smode, "srcreg", sz_long, "src", 1, 0);
	comprintf("\tdont_care_flags();\n");
	comprintf("\trol_l_ri(src,16);\n");
	genflags (flag_logical, sz_long, "src", "", "");
	genastore ("src", curi->smode, "srcreg", sz_long, "src");
	break;
     case i_EXG:
	genamode (curi->smode, "srcreg", curi->size, "src", 1, 0);
	genamode (curi->dmode, "dstreg", curi->size, "dst", 1, 0);
	start_brace();
	comprintf("\tint tmp=scratchie++;\n"
		  "\tmov_l_rr(tmp,src);\n");
	genastore ("dst", curi->smode, "srcreg", curi->size, "src");
	genastore ("tmp", curi->dmode, "dstreg", curi->size, "dst");
	break;
     case i_EXT:
	genamode (curi->smode, "srcreg", sz_long, "src", 1, 0);
	comprintf("\tdont_care_flags();\n");
	start_brace ();
	switch (curi->size)
	{
	 case sz_byte:
	    comprintf ("\tint dst = src;\n"
		       "\tsign_extend_8_rr(src,src);\n");
	    break;
	 case sz_word:
	    comprintf ("\tint dst = scratchie++;\n"
		       "\tsign_extend_8_rr(dst,src);\n");
	    break;
	 case sz_long:
	    comprintf ("\tint dst = src;\n"
		       "\tsign_extend_16_rr(src,src);\n");
	    break;
	 default:
	    abort ();
	}
	genflags (flag_logical,
		  curi->size == sz_word ? sz_word : sz_long, "dst", "", "");
	genastore ("dst", curi->smode, "srcreg",
		   curi->size == sz_word ? sz_word : sz_long, "src");
	break;
     case i_MVMEL:
	genmovemel (opcode);
	break;
     case i_MVMLE:
	genmovemle (opcode);
	break;
     case i_TRAP:
	isjump;
	failure;
	break;
     case i_MVR2USP:
	isjump;
	failure;
	break;
     case i_MVUSP2R:
	isjump;
	failure;
	break;
     case i_RESET:
	isjump;
	failure;
	break;
     case i_NOP:
	break;
     case i_STOP:
	isjump;
	failure;
	break;
     case i_RTE:
	isjump;
	failure;
	break;
     case i_RTD:
	genamode (curi->smode, "srcreg", curi->size, "offs", 1, 0);
	/* offs is constant */
	comprintf("\tadd_l_ri(offs,4);\n");
	start_brace();
	comprintf("\tint newad=scratchie++;\n"
		  "\treadlong(15,newad,scratchie);\n"
		  "\tand_l_ri(newad,~1);\n"
		  "\tmov_l_mr((uae_u32)&regs.pc,newad);\n"
		  "\tget_n_addr_jmp(newad,PC_P,scratchie);\n"
		  "\tmov_l_mr((uae_u32)&regs.pc_oldp,PC_P);\n"
		  "\tm68k_pc_offset=0;\n"
		  "\tadd_l(15,offs);\n");
	gen_update_next_handler();
	isjump;
	break;
     case i_LINK:
	genamode (curi->smode, "srcreg", sz_long, "src", 1, 0);
	genamode (curi->dmode, "dstreg", curi->size, "offs", 1, 0);
	comprintf("\tsub_l_ri(15,4);\n"
		  "\twritelong_clobber(15,src,scratchie);\n"
		  "\tmov_l_rr(src,15);\n");
	if (curi->size==sz_word)
	    comprintf("\tsign_extend_16_rr(offs,offs);\n");
	comprintf("\tadd_l(15,offs);\n");
	genastore ("src", curi->smode, "srcreg", sz_long, "src");
	break;
     case i_UNLK:
	genamode (curi->smode, "srcreg", curi->size, "src", 1, 0);
	comprintf("\tmov_l_rr(15,src);\n"
		  "\treadlong(15,src,scratchie);\n"
		  "\tadd_l_ri(15,4);\n");
	genastore ("src", curi->smode, "srcreg", curi->size, "src");
	break;
     case i_RTS:
	comprintf("\tint newad=scratchie++;\n"
		  "\treadlong(15,newad,scratchie);\n"
		  "\tand_l_ri(newad,~1);\n"
		  "\tmov_l_mr((uae_u32)&regs.pc,newad);\n"
		  "\tget_n_addr_jmp(newad,PC_P,scratchie);\n"
		  "\tmov_l_mr((uae_u32)&regs.pc_oldp,PC_P);\n"
		  "\tm68k_pc_offset=0;\n"
		  "\tlea_l_brr(15,15,4);\n");
	gen_update_next_handler();
	isjump;
	break;
     case i_TRAPV:
	isjump;
	failure;
	break;
     case i_RTR:
	isjump;
	failure;
	break;
     case i_JSR:
	isjump;
	genamode (curi->smode, "srcreg", curi->size, "src", 0, 0);
	start_brace();
	comprintf("\tuae_u32 retadd=start_pc+((char *)comp_pc_p-(char *)start_pc_p)+m68k_pc_offset;\n");
	comprintf("\tint ret=scratchie++;\n"
		  "\tmov_l_ri(ret,retadd);\n"
		  "\tsub_l_ri(15,4);\n"
		  "\twritelong_clobber(15,ret,scratchie);\n");
	comprintf("\tand_l_ri(srca,~1);\n"
		  "\tmov_l_mr((uae_u32)&regs.pc,srca);\n"
		  "\tget_n_addr_jmp(srca,PC_P,scratchie);\n"
		  "\tmov_l_mr((uae_u32)&regs.pc_oldp,PC_P);\n"
		  "\tm68k_pc_offset=0;\n");
	gen_update_next_handler();
	break;
     case i_JMP:
	isjump;
	genamode (curi->smode, "srcreg", curi->size, "src", 0, 0);
	comprintf("\tand_l_ri(srca,~1);\n"
		  "\tmov_l_mr((uae_u32)&regs.pc,srca);\n"
		  "\tget_n_addr_jmp(srca,PC_P,scratchie);\n"
		  "\tmov_l_mr((uae_u32)&regs.pc_oldp,PC_P);\n"
		  "\tm68k_pc_offset=0;\n");
	gen_update_next_handler();
	break;
     case i_BSR:
	if (curi->size==sz_long)
	    failure;
	is_const_jump;
	genamode (curi->smode, "srcreg", curi->size, "src", 1, 0);
	comprintf("\tand_l_ri(src,~1);\n");
	start_brace();
	comprintf("\tuae_u32 retadd=start_pc+((char *)comp_pc_p-(char *)start_pc_p)+m68k_pc_offset;\n");
	comprintf("\tint ret=scratchie++;\n"
		  "\tmov_l_ri(ret,retadd);\n"
		  "\tsub_l_ri(15,4);\n"
		  "\twritelong_clobber(15,ret,scratchie);\n");
	comprintf("\tadd_l_ri(src,m68k_pc_offset_thisinst+2);\n");
	comprintf("\tm68k_pc_offset=0;\n");
	comprintf("\tadd_l(PC_P,src);\n");

	comprintf("\tcomp_pc_p=(uae_u8*)get_const(PC_P);\n");
	break;
     case i_Bcc:
	comprintf("\tuae_u32 v1,v2;\n");
	genamode (curi->smode, "srcreg", curi->size, "src", 1, 0);
	/* That source is an immediate, so we can clobber it with abandon */
	switch(curi->size) {
	 case sz_byte: comprintf("\tsign_extend_8_rr(src,src);\n"); break;
	 case sz_word: comprintf("\tsign_extend_16_rr(src,src);\n"); break;
	 case sz_long: break;
	}
	comprintf("\tand_l_ri(src,~1);\n");
	comprintf("\tsub_l_ri(src,m68k_pc_offset-m68k_pc_offset_thisinst-2);\n");
	/* Leave the following as "add" --- it will allow it to be optimized
	   away due to src being a constant ;-) */
	comprintf("\tadd_l_ri(src,(uae_u32)comp_pc_p);\n");
	comprintf("\tmov_l_ri(PC_P,(uae_u32)comp_pc_p);\n");
	/* Now they are both constant. Might as well fold in m68k_pc_offset */
	comprintf("\tadd_l_ri(src,m68k_pc_offset);\n");
	comprintf("\tadd_l_ri(PC_P,m68k_pc_offset);\n");
	comprintf("\tm68k_pc_offset=0;\n");

	if (curi->cc>=2) {
	    comprintf("\tv1=get_const(PC_P);\n"
		      "\tv2=get_const(src);\n"
		      "\tregister_branch(v1,v2,%d);\n",
		      cond_codes_x86[curi->cc]);
	    comprintf("\tmake_flags_live();\n"); /* Load the flags */
	    isjump;
	}
	else {
	    is_const_jump;
	}

	switch(curi->cc) {
	 case 0:  /* Unconditional jump */
	    comprintf("\tmov_l_rr(PC_P,src);\n");
	    comprintf("\tcomp_pc_p=(uae_u8*)get_const(PC_P);\n");
	    break;
	 case 1: break; /* This is silly! */
	 case 8: failure; break;  /* Work out details! FIXME */
	 case 9: failure; break;  /* Not critical, though! */

	 case 2:
	 case 3:
	 case 4:
	 case 5:
	 case 6:
	 case 7:
	 case 10:
	 case 11:
	 case 12:
	 case 13:
	 case 14:
	 case 15:
	    break;
	 default: abort();
	}
	break;
     case i_LEA:
	genamode (curi->smode, "srcreg", curi->size, "src", 0, 0);
	genamode (curi->dmode, "dstreg", curi->size, "dst", 2, 0);
	genastore ("srca", curi->dmode, "dstreg", curi->size, "dst");
	break;
     case i_PEA:
	if (table68k[opcode].smode==Areg ||
	    table68k[opcode].smode==Aind ||
	    table68k[opcode].smode==Aipi ||
	    table68k[opcode].smode==Apdi ||
	    table68k[opcode].smode==Ad16 ||
	    table68k[opcode].smode==Ad8r)
	    comprintf("if (srcreg==7) dodgy=1;\n");

	genamode (curi->smode, "srcreg", curi->size, "src", 0, 0);
	genamode (Apdi, "7", sz_long, "dst", 2, 0);
	genastore ("srca", Apdi, "7", sz_long, "dst");
	break;
     case i_DBcc:
	isjump;
	uses_cmov;
	genamode (curi->smode, "srcreg", curi->size, "src", 1, 0);
	genamode (curi->dmode, "dstreg", curi->size, "offs", 1, 0);

	/* That offs is an immediate, so we can clobber it with abandon */
	switch(curi->size) {
	 case sz_word: comprintf("\tsign_extend_16_rr(offs,offs);\n"); break;
	 default: abort();  /* Seems this only comes in word flavour */
	}
	comprintf("\tsub_l_ri(offs,m68k_pc_offset-m68k_pc_offset_thisinst-2);\n");
	comprintf("\tadd_l_ri(offs,(uae_u32)comp_pc_p);\n"); /* New PC,
								once the
								offset_68k is
								* also added */
	/* Let's fold in the m68k_pc_offset at this point */
	comprintf("\tadd_l_ri(offs,m68k_pc_offset);\n");
	comprintf("\tadd_l_ri(PC_P,m68k_pc_offset);\n");
	comprintf("\tm68k_pc_offset=0;\n");

	start_brace();
	comprintf("\tint nsrc=scratchie++;\n");

	if (curi->cc>=2) {
	    comprintf("\tmake_flags_live();\n"); /* Load the flags */
	}

	if (curi->size!=sz_word)
	    abort();


	switch(curi->cc) {
	 case 0: /* This is an elaborate nop? */
	    break;
	 case 1:
	    comprintf("\tstart_needflags();\n");
	    comprintf("\tsub_w_ri(src,1);\n");
	    comprintf("\t end_needflags();\n");
	    start_brace();
	    comprintf("\tuae_u32 v2;\n"
		      "\tuae_u32 v1=get_const(PC_P);\n");
	    comprintf("\tv2=get_const(offs);\n"
		      "\tregister_branch(v1,v2,3);\n");
	    break;

	 case 8: failure; break;  /* Work out details! FIXME */
	 case 9: failure; break;  /* Not critical, though! */

	 case 2:
	 case 3:
	 case 4:
	 case 5:
	 case 6:
	 case 7:
	 case 10:
	 case 11:
	 case 12:
	 case 13:
	 case 14:
	 case 15:
	    comprintf("\tmov_l_rr(nsrc,src);\n");
	    comprintf("\tlea_l_brr(scratchie,src,(uae_s32)-1);\n"
		      "\tmov_w_rr(src,scratchie);\n");
	    comprintf("\tcmov_l_rr(offs,PC_P,%d);\n",
		      cond_codes_x86[curi->cc]);
	    comprintf("\tcmov_l_rr(src,nsrc,%d);\n",
		      cond_codes_x86[curi->cc]);
	    /* OK, now for cc=true, we have src==nsrc and offs==PC_P,
	       so whether we move them around doesn't matter. However,
	       if cc=false, we have offs==jump_pc, and src==nsrc-1 */

	    comprintf("\t start_needflags();\n");
	    comprintf("\ttest_w_rr(nsrc,nsrc);\n");
	    comprintf("\t end_needflags();\n");
	    comprintf("\tcmov_l_rr(PC_P,offs,5);\n");
	    break;
	 default: abort();
	}
	genastore ("src", curi->smode, "srcreg", curi->size, "src");
	gen_update_next_handler();
	break;

     case i_Scc:
	genamode (curi->smode, "srcreg", curi->size, "src", 2, 0);
	start_brace ();
	comprintf ("\tint val = scratchie++;\n");

	/* We set val to 0 if we really should use 255, and to 1 for real 0 */
	switch(curi->cc) {
	 case 0:  /* Unconditional set */
	    comprintf("\tmov_l_ri(val,0);\n");
	    break;
	 case 1:
	    /* Unconditional not-set */
	    comprintf("\tmov_l_ri(val,1);\n");
	    break;
	 case 8: failure; break;  /* Work out details! FIXME */
	 case 9: failure; break;  /* Not critical, though! */

	 case 2:
	 case 3:
	 case 4:
	 case 5:
	 case 6:
	 case 7:
	 case 10:
	 case 11:
	 case 12:
	 case 13:
	 case 14:
	 case 15:
	    comprintf("\tmake_flags_live();\n"); /* Load the flags */
	    /* All condition codes can be inverted by changing the LSB */
	    comprintf("\tsetcc(val,%d);\n",
		      cond_codes_x86[curi->cc]^1); break;
	 default: abort();
	}
	comprintf("\tsub_b_ri(val,1);\n");
	genastore ("val", curi->smode, "srcreg", curi->size, "src");
	break;
     case i_DIVU:
	isjump;
	failure;
	break;
     case i_DIVS:
	isjump;
	failure;
	break;
     case i_MULU:
	comprintf("\tdont_care_flags();\n");
	genamode (curi->smode, "srcreg", sz_word, "src", 1, 0);
	genamode (curi->dmode, "dstreg", sz_word, "dst", 1, 0);
	/* To do 16x16 unsigned multiplication, we actually use
	   32x32 signed, and zero-extend the registers first.
	   That solves the problem of MUL needing dedicated registers
	   on the x86 */
	comprintf("\tzero_extend_16_rr(scratchie,src);\n"
		  "\tzero_extend_16_rr(dst,dst);\n"
		  "\timul_32_32(dst,scratchie);\n");
	genflags (flag_logical, sz_long, "dst", "", "");
	genastore ("dst", curi->dmode, "dstreg", sz_long, "dst");
	break;
     case i_MULS:
	comprintf("\tdont_care_flags();\n");
	genamode (curi->smode, "srcreg", sz_word, "src", 1, 0);
	genamode (curi->dmode, "dstreg", sz_word, "dst", 1, 0);
	comprintf("\tsign_extend_16_rr(scratchie,src);\n"
		  "\tsign_extend_16_rr(dst,dst);\n"
		  "\timul_32_32(dst,scratchie);\n");
	genflags (flag_logical, sz_long, "dst", "", "");
	genastore ("dst", curi->dmode, "dstreg", sz_long, "dst");
	break;
     case i_CHK:
	isjump;
	failure;
	break;

     case i_CHK2:
	isjump;
	failure;
	break;

     case i_ASR:
	mayfail;
	if (curi->smode==Dreg) {
	    comprintf("if ((uae_u32)srcreg==(uae_u32)dstreg) {\n"
		"  FAIL(1);\n"
		"  return 0;\n"
		"} \n");
	    start_brace();
	}
	comprintf("\tdont_care_flags();\n");

	genamode (curi->smode, "srcreg", curi->size, "cnt", 1, 0);
	genamode (curi->dmode, "dstreg", curi->size, "data", 1, 0);
	if (curi->smode!=immi) {
	    if (!noflags) {
		uses_cmov;
		start_brace();
		comprintf("\tint highmask;\n"
			  "\tint width;\n"
			  "\tint cdata=scratchie++;\n"
			  "\tint tmpcnt=scratchie++;\n"
			  "\tint highshift=scratchie++;\n");
		comprintf("\tmov_l_rr(tmpcnt,cnt);\n"
			  "\tand_l_ri(tmpcnt,63);\n"
			  "\tmov_l_ri(cdata,0);\n"
			  "\tcmov_l_rr(cdata,data,5);\n");
		/* cdata is now either data (for shift count!=0) or
		   0 (for shift count==0) */
		switch(curi->size) {
		 case sz_byte: comprintf("\tshra_b_rr(data,cnt);\n"
					 "\thighmask=0x38;\n"
					 "\twidth=8;\n");
		 break;
		 case sz_word: comprintf("\tshra_w_rr(data,cnt);\n"
					 "\thighmask=0x30;\n"
					 "\twidth=16;\n");
		 break;
		 case sz_long: comprintf("\tshra_l_rr(data,cnt);\n"
					 "\thighmask=0x20;\n"
					 "\twidth=32;\n");
		 break;
		 default: abort();
		}
		comprintf("test_l_ri(cnt,highmask);\n"
			  "mov_l_ri(highshift,0);\n"
			  "mov_l_ri(scratchie,width/2);\n"
			  "cmov_l_rr(highshift,scratchie,5);\n");
		/* The x86 masks out bits, so we now make sure that things
		   really get shifted as much as planned */
		switch(curi->size) {
		 case sz_byte: comprintf("\tshra_b_rr(data,highshift);\n");break;
		 case sz_word: comprintf("\tshra_w_rr(data,highshift);\n");break;
		 case sz_long: comprintf("\tshra_l_rr(data,highshift);\n");break;
		 default: abort();
		}
		/* And again */
		switch(curi->size) {
		 case sz_byte: comprintf("\tshra_b_rr(data,highshift);\n");break;
		 case sz_word: comprintf("\tshra_w_rr(data,highshift);\n");break;
		 case sz_long: comprintf("\tshra_l_rr(data,highshift);\n");break;
		 default: abort();
		}

		/* Result of shift is now in data. Now we need to determine
		   the carry by shifting cdata one less */
		comprintf("\tsub_l_ri(tmpcnt,1);\n");
		switch(curi->size) {
		 case sz_byte: comprintf("\tshra_b_rr(cdata,tmpcnt);\n");break;
		 case sz_word: comprintf("\tshra_w_rr(cdata,tmpcnt);\n");break;
		 case sz_long: comprintf("\tshra_l_rr(cdata,tmpcnt);\n");break;
		 default: abort();
		}
		/* If the shift count was higher than the width, we need
		   to pick up the sign from data */
		comprintf("test_l_ri(tmpcnt,highmask);\n"
			  "cmov_l_rr(cdata,data,5);\n");
		/* And create the flags */
		comprintf("\tstart_needflags();\n");
		comprintf("\tif (needed_flags & FLAG_ZNV)\n");
		switch(curi->size) {
		 case sz_byte: comprintf("\t  test_b_rr(data,data);\n"); break;
		 case sz_word: comprintf("\t  test_w_rr(data,data);\n"); break;
		 case sz_long: comprintf("\t  test_l_rr(data,data);\n"); break;
		}
		comprintf("\t bt_l_ri(cdata,0);\n"); /* Set C */
		comprintf("\t live_flags();\n");
		comprintf("\t end_needflags();\n");
		comprintf("\t duplicate_carry();\n");
		comprintf("if (!(needed_flags & FLAG_CZNV)) dont_care_flags();\n");
		genastore ("data", curi->dmode, "dstreg", curi->size, "data");
	    }
	    else {
		uses_cmov;
		start_brace();
		comprintf("\tint highmask;\n"
			  "\tint width;\n"
			  "\tint highshift=scratchie++;\n");
		switch(curi->size) {
		 case sz_byte: comprintf("\tshra_b_rr(data,cnt);\n"
					 "\thighmask=0x38;\n"
					 "\twidth=8;\n");
		 break;
		 case sz_word: comprintf("\tshra_w_rr(data,cnt);\n"
					 "\thighmask=0x30;\n"
					 "\twidth=16;\n");
		 break;
		 case sz_long: comprintf("\tshra_l_rr(data,cnt);\n"
					 "\thighmask=0x20;\n"
					 "\twidth=32;\n");
		 break;
		 default: abort();
		}
		comprintf("test_l_ri(cnt,highmask);\n"
			  "mov_l_ri(highshift,0);\n"
			  "mov_l_ri(scratchie,width/2);\n"
			  "cmov_l_rr(highshift,scratchie,5);\n");
		/* The x86 masks out bits, so we now make sure that things
		   really get shifted as much as planned */
		switch(curi->size) {
		 case sz_byte: comprintf("\tshra_b_rr(data,highshift);\n");break;
		 case sz_word: comprintf("\tshra_w_rr(data,highshift);\n");break;
		 case sz_long: comprintf("\tshra_l_rr(data,highshift);\n");break;
		 default: abort();
		}
		/* And again */
		switch(curi->size) {
		 case sz_byte: comprintf("\tshra_b_rr(data,highshift);\n");break;
		 case sz_word: comprintf("\tshra_w_rr(data,highshift);\n");break;
		 case sz_long: comprintf("\tshra_l_rr(data,highshift);\n");break;
		 default: abort();
		}
		genastore ("data", curi->dmode, "dstreg", curi->size, "data");
	    }
	}
	else {
	    start_brace();
	    comprintf("\tint tmp=scratchie++;\n"
		      "\tint bp;\n"
		      "\tmov_l_rr(tmp,data);\n");
	    switch(curi->size) {
	     case sz_byte: comprintf("\tshra_b_ri(data,srcreg);\n"
				     "\tbp=srcreg-1;\n"); break;
	     case sz_word: comprintf("\tshra_w_ri(data,srcreg);\n"
				     "\tbp=srcreg-1;\n"); break;
	     case sz_long: comprintf("\tshra_l_ri(data,srcreg);\n"
				     "\tbp=srcreg-1;\n"); break;
	     default: abort();
	    }

	    if (!noflags) {
		comprintf("\tstart_needflags();\n");
		comprintf("\tif (needed_flags & FLAG_ZNV)\n");
		switch(curi->size) {
		 case sz_byte: comprintf("\t  test_b_rr(data,data);\n"); break;
		 case sz_word: comprintf("\t  test_w_rr(data,data);\n"); break;
		 case sz_long: comprintf("\t  test_l_rr(data,data);\n"); break;
		}
		comprintf("\t bt_l_ri(tmp,bp);\n"); /* Set C */
		comprintf("\t live_flags();\n");
		comprintf("\t end_needflags();\n");
		comprintf("\t duplicate_carry();\n");
		comprintf("if (!(needed_flags & FLAG_CZNV)) dont_care_flags();\n");
	    }
	    genastore ("data", curi->dmode, "dstreg", curi->size, "data");
	}
	break;

     case i_ASL:
	mayfail;
	if (curi->smode==Dreg) {
	    comprintf("if ((uae_u32)srcreg==(uae_u32)dstreg) {\n"
		"  FAIL(1);\n"
		"  return 0;\n"
		"} \n");
	    start_brace();
	}
	comprintf("\tdont_care_flags();\n");
	/* Except for the handling of the V flag, this is identical to
	   LSL. The handling of V is, uhm, unpleasant, so if it's needed,
	   let the normal emulation handle it. Shoulders of giants kinda
	   thing ;-) */
	comprintf("if (needed_flags & FLAG_V) {\n"
		  "  FAIL(1);\n"
		  "  return 0;\n"
		  "} \n");

	genamode (curi->smode, "srcreg", curi->size, "cnt", 1, 0);
	genamode (curi->dmode, "dstreg", curi->size, "data", 1, 0);
	if (curi->smode!=immi) {
	    if (!noflags) {
		uses_cmov;
		start_brace();
		comprintf("\tint highmask;\n"
			  "\tint cdata=scratchie++;\n"
			  "\tint tmpcnt=scratchie++;\n");
		comprintf("\tmov_l_rr(tmpcnt,cnt);\n"
			  "\tand_l_ri(tmpcnt,63);\n"
			  "\tmov_l_ri(cdata,0);\n"
			  "\tcmov_l_rr(cdata,data,5);\n");
		/* cdata is now either data (for shift count!=0) or
		   0 (for shift count==0) */
		switch(curi->size) {
		 case sz_byte: comprintf("\tshll_b_rr(data,cnt);\n"
					 "\thighmask=0x38;\n");
		 break;
		 case sz_word: comprintf("\tshll_w_rr(data,cnt);\n"
					 "\thighmask=0x30;\n");
		 break;
		 case sz_long: comprintf("\tshll_l_rr(data,cnt);\n"
					 "\thighmask=0x20;\n");
		 break;
		 default: abort();
		}
		comprintf("test_l_ri(cnt,highmask);\n"
			  "mov_l_ri(scratchie,0);\n"
			  "cmov_l_rr(scratchie,data,4);\n");
		switch(curi->size) {
		 case sz_byte: comprintf("\tmov_b_rr(data,scratchie);\n");break;
		 case sz_word: comprintf("\tmov_w_rr(data,scratchie);\n");break;
		 case sz_long: comprintf("\tmov_l_rr(data,scratchie);\n");break;
		 default: abort();
		}
		/* Result of shift is now in data. Now we need to determine
		   the carry by shifting cdata one less */
		comprintf("\tsub_l_ri(tmpcnt,1);\n");
		switch(curi->size) {
		 case sz_byte: comprintf("\tshll_b_rr(cdata,tmpcnt);\n");break;
		 case sz_word: comprintf("\tshll_w_rr(cdata,tmpcnt);\n");break;
		 case sz_long: comprintf("\tshll_l_rr(cdata,tmpcnt);\n");break;
		 default: abort();
		}
		comprintf("test_l_ri(tmpcnt,highmask);\n"
			  "mov_l_ri(scratchie,0);\n"
			  "cmov_l_rr(cdata,scratchie,5);\n");
		/* And create the flags */
		comprintf("\tstart_needflags();\n");

		comprintf("\tif (needed_flags & FLAG_ZNV)\n");
		switch(curi->size) {
		 case sz_byte: comprintf("\t  test_b_rr(data,data);\n");
		    comprintf("\t bt_l_ri(cdata,7);\n"); break;
		 case sz_word: comprintf("\t  test_w_rr(data,data);\n");
		    comprintf("\t bt_l_ri(cdata,15);\n"); break;
		 case sz_long: comprintf("\t  test_l_rr(data,data);\n");
		    comprintf("\t bt_l_ri(cdata,31);\n"); break;
		}
		comprintf("\t live_flags();\n");
		comprintf("\t end_needflags();\n");
		comprintf("\t duplicate_carry();\n");
		comprintf("if (!(needed_flags & FLAG_CZNV)) dont_care_flags();\n");
		genastore ("data", curi->dmode, "dstreg", curi->size, "data");
	    }
	    else {
		uses_cmov;
		start_brace();
		comprintf("\tint highmask;\n");
		switch(curi->size) {
		 case sz_byte: comprintf("\tshll_b_rr(data,cnt);\n"
					 "\thighmask=0x38;\n");
		    break;
		 case sz_word: comprintf("\tshll_w_rr(data,cnt);\n"
					 "\thighmask=0x30;\n");
		    break;
		 case sz_long: comprintf("\tshll_l_rr(data,cnt);\n"
					 "\thighmask=0x20;\n");
		    break;
		 default: abort();
		}
		comprintf("test_l_ri(cnt,highmask);\n"
			  "mov_l_ri(scratchie,0);\n"
			  "cmov_l_rr(scratchie,data,4);\n");
		switch(curi->size) {
		 case sz_byte: comprintf("\tmov_b_rr(data,scratchie);\n");break;
		 case sz_word: comprintf("\tmov_w_rr(data,scratchie);\n");break;
		 case sz_long: comprintf("\tmov_l_rr(data,scratchie);\n");break;
		 default: abort();
		}
		genastore ("data", curi->dmode, "dstreg", curi->size, "data");
	    }
	}
	else {
	    start_brace();
	    comprintf("\tint tmp=scratchie++;\n"
		      "\tint bp;\n"
		      "\tmov_l_rr(tmp,data);\n");
	    switch(curi->size) {
	     case sz_byte: comprintf("\tshll_b_ri(data,srcreg);\n"
				     "\tbp=8-srcreg;\n"); break;
	     case sz_word: comprintf("\tshll_w_ri(data,srcreg);\n"
				     "\tbp=16-srcreg;\n"); break;
	     case sz_long: comprintf("\tshll_l_ri(data,srcreg);\n"
				     "\tbp=32-srcreg;\n"); break;
	     default: abort();
	    }

	    if (!noflags) {
		comprintf("\tstart_needflags();\n");
		comprintf("\tif (needed_flags & FLAG_ZNV)\n");
		switch(curi->size) {
		 case sz_byte: comprintf("\t  test_b_rr(data,data);\n"); break;
		 case sz_word: comprintf("\t  test_w_rr(data,data);\n"); break;
		 case sz_long: comprintf("\t  test_l_rr(data,data);\n"); break;
		}
		comprintf("\t bt_l_ri(tmp,bp);\n"); /* Set C */
		comprintf("\t live_flags();\n");
		comprintf("\t end_needflags();\n");
		comprintf("\t duplicate_carry();\n");
		comprintf("if (!(needed_flags & FLAG_CZNV)) dont_care_flags();\n");
	    }
	    genastore ("data", curi->dmode, "dstreg", curi->size, "data");
	}
	break;

     case i_LSR:
	mayfail;
	if (curi->smode==Dreg) {
	    comprintf("if ((uae_u32)srcreg==(uae_u32)dstreg) {\n"
		"  FAIL(1);\n"
		"  return 0;\n"
		"} \n");
	    start_brace();
	}
	comprintf("\tdont_care_flags();\n");

	genamode (curi->smode, "srcreg", curi->size, "cnt", 1, 0);
	genamode (curi->dmode, "dstreg", curi->size, "data", 1, 0);
	if (curi->smode!=immi) {
	    if (!noflags) {
		uses_cmov;
		start_brace();
		comprintf("\tint highmask;\n"
			  "\tint cdata=scratchie++;\n"
			  "\tint tmpcnt=scratchie++;\n");
		comprintf("\tmov_l_rr(tmpcnt,cnt);\n"
			  "\tand_l_ri(tmpcnt,63);\n"
			  "\tmov_l_ri(cdata,0);\n"
			  "\tcmov_l_rr(cdata,data,5);\n");
		/* cdata is now either data (for shift count!=0) or
		   0 (for shift count==0) */
		switch(curi->size) {
		 case sz_byte: comprintf("\tshrl_b_rr(data,cnt);\n"
					 "\thighmask=0x38;\n");
		 break;
		 case sz_word: comprintf("\tshrl_w_rr(data,cnt);\n"
					 "\thighmask=0x30;\n");
		 break;
		 case sz_long: comprintf("\tshrl_l_rr(data,cnt);\n"
					 "\thighmask=0x20;\n");
		 break;
		 default: abort();
		}
		comprintf("test_l_ri(cnt,highmask);\n"
			  "mov_l_ri(scratchie,0);\n"
			  "cmov_l_rr(scratchie,data,4);\n");
		switch(curi->size) {
		 case sz_byte: comprintf("\tmov_b_rr(data,scratchie);\n");break;
		 case sz_word: comprintf("\tmov_w_rr(data,scratchie);\n");break;
		 case sz_long: comprintf("\tmov_l_rr(data,scratchie);\n");break;
		 default: abort();
		}
		/* Result of shift is now in data. Now we need to determine
		   the carry by shifting cdata one less */
		comprintf("\tsub_l_ri(tmpcnt,1);\n");
		switch(curi->size) {
		 case sz_byte: comprintf("\tshrl_b_rr(cdata,tmpcnt);\n");break;
		 case sz_word: comprintf("\tshrl_w_rr(cdata,tmpcnt);\n");break;
		 case sz_long: comprintf("\tshrl_l_rr(cdata,tmpcnt);\n");break;
		 default: abort();
		}
		comprintf("test_l_ri(tmpcnt,highmask);\n"
			  "mov_l_ri(scratchie,0);\n"
			  "cmov_l_rr(cdata,scratchie,5);\n");
		/* And create the flags */
		comprintf("\tstart_needflags();\n");
		comprintf("\tif (needed_flags & FLAG_ZNV)\n");
		switch(curi->size) {
		 case sz_byte: comprintf("\t  test_b_rr(data,data);\n"); break;
		 case sz_word: comprintf("\t  test_w_rr(data,data);\n"); break;
		 case sz_long: comprintf("\t  test_l_rr(data,data);\n"); break;
		}
		comprintf("\t bt_l_ri(cdata,0);\n"); /* Set C */
		comprintf("\t live_flags();\n");
		comprintf("\t end_needflags();\n");
		comprintf("\t duplicate_carry();\n");
		comprintf("if (!(needed_flags & FLAG_CZNV)) dont_care_flags();\n");
		genastore ("data", curi->dmode, "dstreg", curi->size, "data");
	    }
	    else {
		uses_cmov;
		start_brace();
		comprintf("\tint highmask;\n");
		switch(curi->size) {
		 case sz_byte: comprintf("\tshrl_b_rr(data,cnt);\n"
					 "\thighmask=0x38;\n");
		    break;
		 case sz_word: comprintf("\tshrl_w_rr(data,cnt);\n"
					 "\thighmask=0x30;\n");
		    break;
		 case sz_long: comprintf("\tshrl_l_rr(data,cnt);\n"
					 "\thighmask=0x20;\n");
		    break;
		 default: abort();
		}
		comprintf("test_l_ri(cnt,highmask);\n"
			  "mov_l_ri(scratchie,0);\n"
			  "cmov_l_rr(scratchie,data,4);\n");
		switch(curi->size) {
		 case sz_byte: comprintf("\tmov_b_rr(data,scratchie);\n");break;
		 case sz_word: comprintf("\tmov_w_rr(data,scratchie);\n");break;
		 case sz_long: comprintf("\tmov_l_rr(data,scratchie);\n");break;
		 default: abort();
		}
		genastore ("data", curi->dmode, "dstreg", curi->size, "data");
	    }
	}
	else {
	    start_brace();
	    comprintf("\tint tmp=scratchie++;\n"
		      "\tint bp;\n"
		      "\tmov_l_rr(tmp,data);\n");
	    switch(curi->size) {
	     case sz_byte: comprintf("\tshrl_b_ri(data,srcreg);\n"
				     "\tbp=srcreg-1;\n"); break;
	     case sz_word: comprintf("\tshrl_w_ri(data,srcreg);\n"
				     "\tbp=srcreg-1;\n"); break;
	     case sz_long: comprintf("\tshrl_l_ri(data,srcreg);\n"
				     "\tbp=srcreg-1;\n"); break;
	     default: abort();
	    }

	    if (!noflags) {
		comprintf("\tstart_needflags();\n");
		comprintf("\tif (needed_flags & FLAG_ZNV)\n");
		switch(curi->size) {
		 case sz_byte: comprintf("\t  test_b_rr(data,data);\n"); break;
		 case sz_word: comprintf("\t  test_w_rr(data,data);\n"); break;
		 case sz_long: comprintf("\t  test_l_rr(data,data);\n"); break;
		}
		comprintf("\t bt_l_ri(tmp,bp);\n"); /* Set C */
		comprintf("\t live_flags();\n");
		comprintf("\t end_needflags();\n");
		comprintf("\t duplicate_carry();\n");
		comprintf("if (!(needed_flags & FLAG_CZNV)) dont_care_flags();\n");
	    }
	    genastore ("data", curi->dmode, "dstreg", curi->size, "data");
	}
	break;

     case i_LSL:
	comprintf("\tdont_care_flags();\n");

	genamode (curi->smode, "srcreg", curi->size, "cnt", 1, 0);
	genamode (curi->dmode, "dstreg", curi->size, "data", 1, 0);
	if (curi->smode!=immi) {
	    if (!noflags) {
		uses_cmov;
		start_brace();
		comprintf("\tint highmask;\n"
			  "\tint cdata=scratchie++;\n"
			  "\tint tmpcnt=scratchie++;\n");
		comprintf("\tmov_l_rr(tmpcnt,cnt);\n"
			  "\tand_l_ri(tmpcnt,63);\n"
			  "\tmov_l_ri(cdata,0);\n"
			  "\tcmov_l_rr(cdata,data,5);\n");
		/* cdata is now either data (for shift count!=0) or
		   0 (for shift count==0) */
		switch(curi->size) {
		 case sz_byte: comprintf("\tshll_b_rr(data,cnt);\n"
					 "\thighmask=0x38;\n");
		 break;
		 case sz_word: comprintf("\tshll_w_rr(data,cnt);\n"
					 "\thighmask=0x30;\n");
		 break;
		 case sz_long: comprintf("\tshll_l_rr(data,cnt);\n"
					 "\thighmask=0x20;\n");
		 break;
		 default: abort();
		}
		comprintf("test_l_ri(cnt,highmask);\n"
			  "mov_l_ri(scratchie,0);\n"
			  "cmov_l_rr(scratchie,data,4);\n");
		switch(curi->size) {
		 case sz_byte: comprintf("\tmov_b_rr(data,scratchie);\n");break;
		 case sz_word: comprintf("\tmov_w_rr(data,scratchie);\n");break;
		 case sz_long: comprintf("\tmov_l_rr(data,scratchie);\n");break;
		 default: abort();
		}
		/* Result of shift is now in data. Now we need to determine
		   the carry by shifting cdata one less */
		comprintf("\tsub_l_ri(tmpcnt,1);\n");
		switch(curi->size) {
		 case sz_byte: comprintf("\tshll_b_rr(cdata,tmpcnt);\n");break;
		 case sz_word: comprintf("\tshll_w_rr(cdata,tmpcnt);\n");break;
		 case sz_long: comprintf("\tshll_l_rr(cdata,tmpcnt);\n");break;
		 default: abort();
		}
		comprintf("test_l_ri(tmpcnt,highmask);\n"
			  "mov_l_ri(scratchie,0);\n"
			  "cmov_l_rr(cdata,scratchie,5);\n");
		/* And create the flags */
		comprintf("\tstart_needflags();\n");
		comprintf("\tif (needed_flags & FLAG_ZNV)\n");
		switch(curi->size) {
		 case sz_byte: comprintf("\t  test_b_rr(data,data);\n");
		    comprintf("\t bt_l_ri(cdata,7);\n"); break;
		 case sz_word: comprintf("\t  test_w_rr(data,data);\n");
		    comprintf("\t bt_l_ri(cdata,15);\n"); break;
		 case sz_long: comprintf("\t  test_l_rr(data,data);\n");
		    comprintf("\t bt_l_ri(cdata,31);\n"); break;
		}
		comprintf("\t live_flags();\n");
		comprintf("\t end_needflags();\n");
		comprintf("\t duplicate_carry();\n");
		comprintf("if (!(needed_flags & FLAG_CZNV)) dont_care_flags();\n");
		genastore ("data", curi->dmode, "dstreg", curi->size, "data");
	    }
	    else {
		uses_cmov;
		start_brace();
		comprintf("\tint highmask;\n");
		switch(curi->size) {
		 case sz_byte: comprintf("\tshll_b_rr(data,cnt);\n"
					 "\thighmask=0x38;\n");
		    break;
		 case sz_word: comprintf("\tshll_w_rr(data,cnt);\n"
					 "\thighmask=0x30;\n");
		    break;
		 case sz_long: comprintf("\tshll_l_rr(data,cnt);\n"
					 "\thighmask=0x20;\n");
		    break;
		 default: abort();
		}
		comprintf("test_l_ri(cnt,highmask);\n"
			  "mov_l_ri(scratchie,0);\n"
			  "cmov_l_rr(scratchie,data,4);\n");
		switch(curi->size) {
		 case sz_byte: comprintf("\tmov_b_rr(data,scratchie);\n");break;
		 case sz_word: comprintf("\tmov_w_rr(data,scratchie);\n");break;
		 case sz_long: comprintf("\tmov_l_rr(data,scratchie);\n");break;
		 default: abort();
		}
		genastore ("data", curi->dmode, "dstreg", curi->size, "data");
	    }
	}
	else {
	    start_brace();
	    comprintf("\tint tmp=scratchie++;\n"
		      "\tint bp;\n"
		      "\tmov_l_rr(tmp,data);\n");
	    switch(curi->size) {
	     case sz_byte: comprintf("\tshll_b_ri(data,srcreg);\n"
				     "\tbp=8-srcreg;\n"); break;
	     case sz_word: comprintf("\tshll_w_ri(data,srcreg);\n"
				     "\tbp=16-srcreg;\n"); break;
	     case sz_long: comprintf("\tshll_l_ri(data,srcreg);\n"
				     "\tbp=32-srcreg;\n"); break;
	     default: abort();
	    }

	    if (!noflags) {
		comprintf("\tstart_needflags();\n");
		comprintf("\tif (needed_flags & FLAG_ZNV)\n");
		switch(curi->size) {
		 case sz_byte: comprintf("\t  test_b_rr(data,data);\n"); break;
		 case sz_word: comprintf("\t  test_w_rr(data,data);\n"); break;
		 case sz_long: comprintf("\t  test_l_rr(data,data);\n"); break;
		}
		comprintf("\t bt_l_ri(tmp,bp);\n"); /* Set C */
		comprintf("\t live_flags();\n");
		comprintf("\t end_needflags();\n");
		comprintf("\t duplicate_carry();\n");
		comprintf("if (!(needed_flags & FLAG_CZNV)) dont_care_flags();\n");
	    }
	    genastore ("data", curi->dmode, "dstreg", curi->size, "data");
	}
	break;

     case i_ROL:
	mayfail;
	if (curi->smode==Dreg) {
	    comprintf("if ((uae_u32)srcreg==(uae_u32)dstreg) {\n"
		"  FAIL(1);\n"
		"  return 0;\n"
		"} \n");
	    start_brace();
	}
	comprintf("\tdont_care_flags();\n");
	genamode (curi->smode, "srcreg", curi->size, "cnt", 1, 0);
	genamode (curi->dmode, "dstreg", curi->size, "data", 1, 0);
	start_brace ();

	switch(curi->size) {
	 case sz_long: comprintf("\t rol_l_rr(data,cnt);\n"); break;
	 case sz_word: comprintf("\t rol_w_rr(data,cnt);\n"); break;
	 case sz_byte: comprintf("\t rol_b_rr(data,cnt);\n"); break;
	}

	if (!noflags) {
	    comprintf("\tstart_needflags();\n");
	    comprintf("\tif (needed_flags & FLAG_ZNV)\n");
	    switch(curi->size) {
	     case sz_byte: comprintf("\t  test_b_rr(data,data);\n"); break;
	     case sz_word: comprintf("\t  test_w_rr(data,data);\n"); break;
	     case sz_long: comprintf("\t  test_l_rr(data,data);\n"); break;
	    }
	    comprintf("\t bt_l_ri(data,0x00);\n"); /* Set C */
	    comprintf("\t live_flags();\n");
	    comprintf("\t end_needflags();\n");
	}
	genastore ("data", curi->dmode, "dstreg", curi->size, "data");
	break;

     case i_ROR:
	mayfail;
	if (curi->smode==Dreg) {
	    comprintf("if ((uae_u32)srcreg==(uae_u32)dstreg) {\n"
		"  FAIL(1);\n"
		"  return 0;\n"
		"} \n");
	    start_brace();
	}
	comprintf("\tdont_care_flags();\n");
	genamode (curi->smode, "srcreg", curi->size, "cnt", 1, 0);
	genamode (curi->dmode, "dstreg", curi->size, "data", 1, 0);
	start_brace ();

	switch(curi->size) {
	 case sz_long: comprintf("\t ror_l_rr(data,cnt);\n"); break;
	 case sz_word: comprintf("\t ror_w_rr(data,cnt);\n"); break;
	 case sz_byte: comprintf("\t ror_b_rr(data,cnt);\n"); break;
	}

	if (!noflags) {
	    comprintf("\tstart_needflags();\n");
	    comprintf("\tif (needed_flags & FLAG_ZNV)\n");
	    switch(curi->size) {
	     case sz_byte: comprintf("\t  test_b_rr(data,data);\n"); break;
	     case sz_word: comprintf("\t  test_w_rr(data,data);\n"); break;
	     case sz_long: comprintf("\t  test_l_rr(data,data);\n"); break;
	    }
	    switch(curi->size) {
	     case sz_byte: comprintf("\t bt_l_ri(data,0x07);\n"); break;
	     case sz_word: comprintf("\t bt_l_ri(data,0x0f);\n"); break;
	     case sz_long: comprintf("\t bt_l_ri(data,0x1f);\n"); break;
	    }
	    comprintf("\t live_flags();\n");
	    comprintf("\t end_needflags();\n");
	}
	genastore ("data", curi->dmode, "dstreg", curi->size, "data");
	break;

     case i_ROXL:
	failure;
	break;
     case i_ROXR:
	failure;
	break;
     case i_ASRW:
	failure;
	break;
     case i_ASLW:
	failure;
	break;
     case i_LSRW:
	failure;
	break;
     case i_LSLW:
	failure;
	break;
     case i_ROLW:
	failure;
	break;
     case i_RORW:
	failure;
	break;
     case i_ROXLW:
	failure;
	break;
     case i_ROXRW:
	failure;
	break;
     case i_MOVEC2:
	isjump;
	failure;
	break;
     case i_MOVE2C:
	isjump;
	failure;
	break;
     case i_CAS:
	failure;
	break;
     case i_CAS2:
	failure;
	break;
     case i_MOVES:		/* ignore DFC and SFC because we have no MMU */
	isjump;
	failure;
	break;
     case i_BKPT:		/* only needed for hardware emulators */
	isjump;
	failure;
	break;
     case i_CALLM:		/* not present in 68030 */
	isjump;
	failure;
	break;
     case i_RTM:		/* not present in 68030 */
	isjump;
	failure;
	break;
     case i_TRAPcc:
	isjump;
	failure;
	break;
     case i_DIVL:
	isjump;
	failure;
	break;
     case i_MULL:
	if (!noflags) {
	    failure;
	    break;
	}
	comprintf("\tuae_u16 extra=%s;\n",gen_nextiword());
	comprintf("\tint r2=(extra>>12)&7;\n"
		  "\tint tmp=scratchie++;\n");

	genamode (curi->dmode, "dstreg", curi->size, "dst", 1, 0);
	/* The two operands are in dst and r2 */
	comprintf("\tif (extra&0x0400) {\n" /* Need full 64 bit result */
		  "\tint r3=(extra&7);\n"
		  "\tmov_l_rr(r3,dst);\n"); /* operands now in r3 and r2 */
	comprintf("\tif (extra&0x0800) { \n" /* signed */
		  "\t\timul_64_32(r2,r3);\n"
		  "\t} else { \n"
		  "\t\tmul_64_32(r2,r3);\n"
		  "\t} \n");
	/* The result is in r2/tmp, with r2 holding the lower 32 bits */
	comprintf("\t} else {\n");  /* Only want 32 bit result */
	/* operands in dst and r2, result foes into r2 */
	/* shouldn't matter whether it's signed or unsigned?!? */
	comprintf("\timul_32_32(r2,dst);\n"
		  "\t}\n");
	break;

     case i_BFTST:
     case i_BFEXTU:
     case i_BFCHG:
     case i_BFEXTS:
     case i_BFCLR:
     case i_BFFFO:
     case i_BFSET:
     case i_BFINS:
	failure;
	break;
     case i_PACK:
	failure;
	break;
     case i_UNPK:
	failure;
	break;
     case i_TAS:
	failure;
	break;
     case i_FPP:
	mayfail;
	comprintf("\tuae_u16 extra=%s;\n",gen_nextiword());
	comprintf("\tcomp_fpp_opp(opcode,extra);\n");
	break;
     case i_FBcc:
	isjump;
	uses_cmov;
	mayfail;
	comprintf("\tcomp_fbcc_opp(opcode);\n");
	break;
     case i_FDBcc:
	isjump;
	failure;
	break;
     case i_FScc:
	mayfail;
	uses_cmov;
	comprintf("\tuae_u16 extra=%s;\n",gen_nextiword());
	comprintf("\tcomp_fscc_opp(opcode,extra);\n");
	break;
     case i_FTRAPcc:
	isjump;
	failure;
	break;
     case i_FSAVE:
	failure;
	break;
     case i_FRESTORE:
	failure;
	break;

     case i_CINVL:
     case i_CINVP:
     case i_CINVA:
	isjump;  /* Not really, but it's probably a good idea to stop
		    translating at this point */
	failure;
	comprintf ("\tflush_icache();\n");  /* Differentiate a bit more? */
	break;
     case i_CPUSHL:
     case i_CPUSHP:
     case i_CPUSHA:
	isjump;  /* Not really, but it's probably a good idea to stop
		    translating at this point */
	failure;
	break;
     case i_MOVE16:
	//if ((opcode & 0xfff8) == 0xf620) {
	    genmov16(opcode,curi);
	//} else {
	//    isjump;
	//    failure;
	//}
	break;

     case i_MMUOP030:
     case i_PFLUSHN:
     case i_PFLUSH:
     case i_PFLUSHAN:
     case i_PFLUSHA:
     case i_PLPAR:
     case i_PLPAW:
     case i_PTESTR:
     case i_PTESTW:
     case i_LPSTOP:
	isjump;
	failure;
	break;
     default:
	abort ();
	break;
    }
    comprintf("%s",endstr);
    finish_braces ();
    sync_m68k_pc ();
    if (global_mayfail)
	comprintf("\tif (failure)  m68k_pc_offset=m68k_pc_offset_thisinst;\n");
    return global_failure;
}

static void
generate_includes (FILE * f, int bigger)
{
    fprintf (f, "#include \"sysconfig.h\"\n");
    fprintf (f, "#if defined(JIT)\n");
    fprintf (f, "#include \"sysdeps.h\"\n");
	if (bigger)
		fprintf (f, "#include \"options.h\"\n");
    fprintf (f, "#include \"memory.h\"\n");
    fprintf (f, "#include \"newcpu.h\"\n");
    fprintf (f, "#include \"comptbl.h\"\n");
}

static int postfix;

static void
generate_one_opcode (int rp, int noflags)
{
    int i;
    uae_u16 smsk, dmsk;
    long int opcode = opcode_map[rp];
    int aborted=0;
    int have_srcreg=0;
    int have_dstreg=0;

    if (table68k[opcode].mnemo == i_ILLG
	|| table68k[opcode].clev > cpu_level)
	return;

    for (i = 0; lookuptab[i].name[0]; i++)
    {
	if (table68k[opcode].mnemo == lookuptab[i].mnemo)
	    break;
    }

    if (table68k[opcode].handler != -1)
	return;

    switch (table68k[opcode].stype)
    {
    case 0: smsk = 7; break;
    case 1: smsk = 255; break;
    case 2: smsk = 15;	break;
    case 3: smsk = 7; break;
    case 4: smsk = 7; break;
    case 5: smsk = 63; break;
    case 7: smsk = 3; break;
    default: abort ();
    }
    dmsk = 7;

    next_cpu_level = -1;
    if (table68k[opcode].suse
	&& table68k[opcode].smode != imm && table68k[opcode].smode != imm0
	&& table68k[opcode].smode != imm1 && table68k[opcode].smode != imm2
	&& table68k[opcode].smode != absw && table68k[opcode].smode != absl
	&& table68k[opcode].smode != PC8r && table68k[opcode].smode != PC16)
    {
	have_srcreg=1;
	if (table68k[opcode].spos == -1)
	{
	    if (((int) table68k[opcode].sreg) >= 128)
		comprintf ("\tuae_s32 srcreg = (uae_s32)(uae_s8)%d;\n", (int) table68k[opcode].sreg);
	    else
		comprintf ("\tuae_s32 srcreg = %d;\n", (int) table68k[opcode].sreg);
	}
	else
	{
	    char source[100];
	    int pos = table68k[opcode].spos;

	    if (pos)
		sprintf (source, "((opcode >> %d) & %d)", pos, smsk);
	    else
		sprintf (source, "(opcode & %d)", smsk);

	    if (table68k[opcode].stype == 3)
		comprintf ("\tuae_s32 srcreg = imm8_table[%s];\n", source);
	    else if (table68k[opcode].stype == 1)
		comprintf ("\tuae_s32 srcreg = (uae_s32)(uae_s8)%s;\n", source);
	    else
		comprintf ("\tuae_s32 srcreg = %s;\n", source);
	}
    }
    if (table68k[opcode].duse
	/* Yes, the dmode can be imm, in case of LINK or DBcc */
	&& table68k[opcode].dmode != imm && table68k[opcode].dmode != imm0
	&& table68k[opcode].dmode != imm1 && table68k[opcode].dmode != imm2
	&& table68k[opcode].dmode != absw && table68k[opcode].dmode != absl)
    {
	have_dstreg=1;
	if (table68k[opcode].dpos == -1)
	{
	    if (((int) table68k[opcode].dreg) >= 128)
		comprintf ("\tuae_s32 dstreg = (uae_s32)(uae_s8)%d;\n", (int) table68k[opcode].dreg);
	    else
		comprintf ("\tuae_s32 dstreg = %d;\n", (int) table68k[opcode].dreg);
	}
	else
	{
	    int pos = table68k[opcode].dpos;

	    if (pos)
		comprintf ("\tuae_u32 dstreg = (opcode >> %d) & %d;\n",
			   pos, dmsk);
	    else
		comprintf ("\tuae_u32 dstreg = opcode & %d;\n", dmsk);
	}
    }

    if (have_srcreg && have_dstreg &&
	(table68k[opcode].dmode==Areg ||
	 table68k[opcode].dmode==Aind ||
	 table68k[opcode].dmode==Aipi ||
	 table68k[opcode].dmode==Apdi ||
	 table68k[opcode].dmode==Ad16 ||
	 table68k[opcode].dmode==Ad8r) &&
	(table68k[opcode].smode==Areg ||
	 table68k[opcode].smode==Aind ||
	 table68k[opcode].smode==Aipi ||
	 table68k[opcode].smode==Apdi ||
	 table68k[opcode].smode==Ad16 ||
	 table68k[opcode].smode==Ad8r)
	) {
	comprintf("\tuae_u32 dodgy=(srcreg==(uae_s32)dstreg);\n");
    }
    else {
	comprintf("\tuae_u32 dodgy=0;\n");
    }
    comprintf("\tuae_u32 m68k_pc_offset_thisinst=m68k_pc_offset;\n");
    comprintf("\tm68k_pc_offset+=2;\n");

    aborted=gen_opcode (opcode);
    {
	int flags=0;
	if (global_isjump) flags|=1;
	if (long_opcode)   flags|=2;
	if (global_cmov)   flags|=4;
	if (global_isaddx) flags|=8;
	if (global_iscjump) flags|=16;
	comprintf ("return 0;\n");
	comprintf ("}\n");

	char name[100] = { 0 };
	for (int k = 0; lookuptab[i].name[k]; k++)
		name[k] = lookuptab[i].name[k];

	if (aborted) {
	    fprintf (stblfile, "{ NULL, %ld, 0x%08x }, /* %s */\n", opcode, flags, name);
	    com_discard();
	} else {
	    if (noflags) {
		fprintf (stblfile, "{ op_%lx_%d_comp_nf, %ld, 0x%08x }, /* %s */\n", opcode, postfix, opcode, flags, name);
		fprintf (headerfile, "extern compop_func op_%lx_%d_comp_nf;\n", opcode, postfix);
		printf ("unsigned long REGPARAM2 op_%lx_%d_comp_nf(uae_u32 opcode) /* %s */\n{\n", opcode, postfix, name);
	    } else {
		fprintf (stblfile, "{ op_%lx_%d_comp_ff, %ld, 0x%08x }, /* %s */\n", opcode, postfix, opcode, flags, name);
		fprintf (headerfile, "extern compop_func op_%lx_%d_comp_ff;\n", opcode, postfix);
		printf ("unsigned long REGPARAM2 op_%lx_%d_comp_ff(uae_u32 opcode) /* %s */\n{\n", opcode, postfix, name);
	    }
	    com_flush();
	}
    }
    opcode_next_clev[rp] = next_cpu_level;
    opcode_last_postfix[rp] = postfix;
}

static void
generate_func (int noflags)
{
    int i, j, rp;

    using_prefetch = 0;
    using_exception_3 = 0;
    for (i = 0; i < 1; i++) /* We only do one level! */
    {
	cpu_level = 5 - i;
	postfix = i;

	if (noflags)
	    fprintf (stblfile, "const struct comptbl op_smalltbl_%d_comp_nf[] = {\n", postfix);
	else
	    fprintf (stblfile, "const struct comptbl op_smalltbl_%d_comp_ff[] = {\n", postfix);


	/* sam: this is for people with low memory (eg. me :)) */
	printf ("\n"
		 "#if !defined(PART_1) && !defined(PART_2) && "
		 "!defined(PART_3) && !defined(PART_4) && "
		 "!defined(PART_5) && !defined(PART_6) && "
		 "!defined(PART_7) && !defined(PART_8)"
		 "\n"
		 "#define PART_1 1\n"
		 "#define PART_2 1\n"
		 "#define PART_3 1\n"
		 "#define PART_4 1\n"
		 "#define PART_5 1\n"
		 "#define PART_6 1\n"
		 "#define PART_7 1\n"
		 "#define PART_8 1\n"
		 "#endif\n\n"
		 "extern void setzflg_l(uae_u32);\n"
		 "extern void comp_fpp_opp();\n"
		 "extern void comp_fscc_opp();\n"
		 "extern void comp_fbcc_opp();\n\n");

	rp = 0;
	for (j = 1; j <= 8; ++j)
	{
	    int k = (j * nr_cpuop_funcs) / 8;
	    printf ("#ifdef PART_%d\n", j);
	    for (; rp < k; rp++)
		generate_one_opcode (rp,noflags);
	    printf ("#endif\n\n");
	}

	fprintf (stblfile, "{ 0, 65536, 0 }};\n");
    }

}

int
main (int argc, char **argv)
{
    read_table68k ();
    do_merges ();

    opcode_map = xmalloc (int, nr_cpuop_funcs);
    opcode_last_postfix = xmalloc (int, nr_cpuop_funcs);
    opcode_next_clev = xmalloc (int, nr_cpuop_funcs);
    counts = xmalloc (unsigned long, 65536);
    read_counts ();

    /* It would be a lot nicer to put all in one file (we'd also get rid of
     * cputbl.h that way), but cpuopti can't cope.  That could be fixed, but
     * I don't dare to touch the 68k version.  */

    headerfile = fopen ("jit/comptbl.h", "wb");

	fprintf (headerfile, "" \
		"#ifdef NOFLAGS_SUPPORT\n" \
		"/* 68040 */\n" \
		"extern const struct comptbl op_smalltbl_0_nf[];\n" \
		"#endif\n" \
		"extern const struct comptbl op_smalltbl_0_comp_nf[];\n" \
		"extern const struct comptbl op_smalltbl_0_comp_ff[];\n" \
		"");

	stblfile = fopen ("jit/compstbl.cpp", "wb");
    freopen ("jit/compemu.cpp", "wb", stdout);

    generate_includes (stdout, 1);
    generate_includes (stblfile, 1);

    printf("#include \"compemu.h\"\n");

    noflags=0;
    generate_func (noflags);


    opcode_map = xmalloc (int, nr_cpuop_funcs);
    opcode_last_postfix = xmalloc (int, nr_cpuop_funcs);
    opcode_next_clev = xmalloc (int, nr_cpuop_funcs);
    counts = xmalloc (unsigned long, 65536);
    read_counts ();
    noflags=1;
    generate_func (noflags);

    printf ("#endif\n");
    fprintf (stblfile, "#endif\n");

    free (table68k);
    return 0;
}