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binutils-gdb/sim/m32c/m32c.opc
DJ Delorie 2b1a61a6cf * m32c.opc (MATH_OP): When doing subtraction, also set carry if 
the result is zero.
2010-01-20 05:52:19 +00:00

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/* m32c.opc --- semantics for m32c opcodes. -*- mode: c -*-
Copyright (C) 2005, 2007, 2008, 2009, 2010 Free Software Foundation, Inc.
Contributed by Red Hat, Inc.
This file is part of the GNU simulators.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>. */
#include <stdio.h>
#include <stdlib.h>
#include "cpu.h"
#include "mem.h"
#include "misc.h"
#include "int.h"
#define AU __attribute__((unused))
#define tprintf if (trace) printf
static unsigned char
getbyte ()
{
int tsave = trace;
unsigned char b;
if (trace == 1)
trace = 0;
b = mem_get_pc ();
regs.r_pc ++;
trace = tsave;
return b;
}
#define M32C_ONLY() /* FIXME: add something here */
#define GETBYTE() (op[opi++] = getbyte())
#define UNSUPPORTED() unsupported("unsupported", m32c_opcode_pc)
#define NOTYET() unsupported("unimplemented", m32c_opcode_pc)
static void
unsupported (char *tag, int orig_pc)
{
int i;
printf("%s opcode at %08x\n", tag, orig_pc);
regs.r_pc = orig_pc;
for (i=0; i<2; i++)
{
int b = mem_get_pc();
printf(" %s", bits(b>>4, 4));
printf(" %s", bits(b, 4));
regs.r_pc ++;
}
printf("\n");
regs.r_pc = orig_pc;
for (i=0; i<6; i++)
{
printf(" %02x", mem_get_pc ());
regs.r_pc ++;
}
printf("\n");
exit(1);
}
static int
IMM(int bytes)
{
int rv = 0;
switch (bytes)
{
case 1:
rv = mem_get_qi (get_reg(pc));
break;
case 2:
rv = mem_get_hi (get_reg(pc));
break;
case 3:
rv = mem_get_psi (get_reg(pc));
break;
case 4:
rv = mem_get_si (get_reg(pc));
break;
}
regs.r_pc += bytes;
return rv;
}
#define IMM4() (immm >= 8 ? 7 - immm : immm + 1)
#define NO_PREFIX() PREFIX(0,0,0)
/* Indicate which sorts of prefixes are allowed for the current
opcode. */
void
prefix (src_allowed, dest_allowed, index_bytewidth)
{
/* At the moment, we don't do anything with this information. We
just wanted to get the information entered in some
machine-readable form while we were going through all the
opcodes. */
}
#define MATH_OP(dc,s,c,op) \
{ \
int ma, mb; \
ma = get_src(dc); \
mb = s & b2mask[dc.bytes]; \
ll = (long long)ma op (long long)mb op c; \
tprintf("0x%x " #op " 0x%x " #op " 0x%x = 0x%llx\n", ma, mb, c, ll); \
ma = sign_ext (ma, dc.bytes * 8); \
mb = sign_ext (s, dc.bytes * 8); \
v = ma op mb op c; \
tprintf("%d " #op " %d " #op " %d = %d\n", ma, mb, c, v); \
set_oszc (v, dc.bytes, (1 op 1) ? (ll > b2mask[dc.bytes]) : (ll >= 0)); \
put_dest (dc, v); \
}
#define LOGIC_OP(dc,s,op) \
{ \
int ma, mb; \
ma = get_src(dc); \
mb = s & b2mask[dc.bytes]; \
v = ma op mb; \
tprintf("0x%x " #op " 0x%x = 0x%x\n", ma, mb, v); \
set_sz (v, dc.bytes); \
put_dest (dc, v); \
}
#define BIT_OP(dc,bit,expr) \
b = get_bit2 (dc, bitindex == -1 ? bit : bitindex); \
v = expr; \
tprintf ("b=%d, bit=%d, carry=%d, %s = %d\n", \
b, bitindex == -1 ? bit : bitindex, carry, #expr, v); \
put_bit2 (dc, bitindex == -1 ? bit : bitindex, v);
#define BIT_OPC(dc,bit,expr) \
b = get_bit2 (dc, bitindex == -1 ? bit : bitindex); \
v = expr; \
tprintf ("b=%d, bit=%d, carry=%d, %s = %d\n", \
b, bitindex == -1 ? bit : bitindex, carry, #expr, v); \
set_c (v);
#define carry (FLAG_C ? 1 : 0)
static void
cmp (int d, int s, int bytes)
{
int a, b, f=0;
a = d - s;
b = sign_ext (d, bytes*8) - sign_ext (s, bytes*8);
tprintf ("cmp: %x - %x = %08x, %x - %x = %d\n",
d, s, a,
sign_ext(d,bytes*8), sign_ext(s,bytes*8), b);
if (b == 0)
f |= FLAGBIT_Z;
if (b & b2signbit[bytes])
f |= FLAGBIT_S;
if ((d & b2mask[bytes]) >= (s & b2mask[bytes]))
f |= FLAGBIT_C;
if (b < b2minsigned[bytes] || b > b2maxsigned[bytes])
f |= FLAGBIT_O;
set_flags (FLAGBIT_Z | FLAGBIT_S | FLAGBIT_O | FLAGBIT_C, f);
}
static void
dadd_op (int ddd, int dd, int sss, int ss, int imm, int add, int cy, int w)
{
srcdest sc, dc;
int a, b=0, res;
prefix (0, 0, 0);
if (!imm)
{
sc = decode_src23 (sss, ss, w+1);
b = get_src (sc);
}
dc = decode_dest23 (ddd, dd, w+1);
a = get_src (dc);
if (imm)
b = IMM(w+1);
a = bcd2int(a, w);
b = bcd2int(b, w);
tprintf("decimal: %d %s %d", a, add?"+":"-", b);
if (cy)
tprintf(" c=%d", carry);
if (add)
{
res = a + b;
if (cy)
res += carry;
cy = res > (w ? 9999 : 99);
}
else
{
res = a - b;
if (cy)
res -= (1-carry);
cy = res >= 0;
if (res < 0)
res += w ? 10000 : 100;
}
res = int2bcd (res, w);
tprintf(" = %x\n", res);
set_szc (res, w+1, cy);
put_dest (dc, res);
}
#define DADDV(A,C) dadd_op(ddd, dd, sss, ss, 0, A, C, w)
#define DADDI(A,C) dadd_op(ddd, dd, 0, 0, 1, A, C, w)
static void
div_op (int sss, int ss, int u, int x, int bytes)
{
srcdest sc;
int s, v, a, b;
if (sss == -1)
s = IMM(bytes);
else
{
sc = decode_dest23 (sss, ss, bytes);
s = get_src (sc);
}
v = get_reg (bytes > 1 ? r2r0 : r0);
if (!u)
{
/* FIXME? do we sign extend a0/a1 to .L? Docs say zero extend. */
s = sign_ext (s, bytes*8);
v = sign_ext (v, bytes*8);
}
if (s == 0)
{
set_flags (FLAGBIT_O, FLAGBIT_O);
return;
}
if (u)
{
a = (unsigned int)v / (unsigned int)s;
b = (unsigned int)v % (unsigned int)s;
}
else
{
a = v / s;
b = v % s;
}
if (x)
{
if ((s > 0 && b < 0)
|| (s < 0 && b > 0))
{
a --;
b += s;
}
}
tprintf ("%d / %d = %d rem %d\n", v, s, a, b);
if ((!u && (a > b2maxsigned[bytes]
|| a < b2minsigned[bytes]))
|| (u && (a > b2mask[bytes])))
set_flags (FLAGBIT_O, FLAGBIT_O);
else
set_flags (FLAGBIT_O, 0);
switch (bytes)
{
case 1:
put_reg (r0l, a);
put_reg (r0h, b);
break;
case 2:
put_reg (r0, a);
put_reg (r2, b);
break;
case 4:
put_reg (r2r0, a);
break;
}
}
static void
index_op (int sss, int ss, int do_s, int do_d, int scale, int w)
{
srcdest sc = decode_src23 (sss, ss, w+1);
int v = get_src (sc) * scale;
tprintf("%d = %d * %d, %d %d\n", v, get_src(sc), scale, do_s, do_d);
decode_index (do_s * v, do_d * v);
}
#define INDEXOP(scale,do_s,do_d) \
index_op (sss, ss, do_s, do_d, scale, w); goto next_opcode
static void
rot_op (srcdest sd, int rotc, int count)
{
int mask = (sd.bytes == 2) ? 0xffff : 0xff;
int msb = (sd.bytes == 2) ? 0x8000 : 0x80;
int v = get_src (sd);
int c = carry, ct;
tprintf("%s %x by %d\n", rotc ? "rotc" : "rot", v, count);
tprintf (": %s %d\n", bits(v, 8*sd.bytes), c);
while (count > 0)
{
ct = (v & msb) ? 1 : 0;
v <<= 1;
v |= rotc ? c : ct;
v &= mask;
c = ct;
tprintf (": %s %d\n", bits(v, 8*sd.bytes), c);
count --;
}
while (count < 0)
{
ct = v & 1;
v >>= 1;
v |= (rotc ? c : ct) * msb;
c = ct;
tprintf (": %s %d\n", bits(v, 8*sd.bytes), c);
count ++;
}
put_dest (sd, v);
set_szc (v, sd.bytes, c);
}
static void
shift_op (srcdest sd, int arith, int count, int setc)
{
int mask = (sd.bytes == 2) ? 0xffff : 0xff;
int msb = (sd.bytes == 2) ? 0x8000 : 0x80;
int v = get_src (sd);
int c = 0;
int o = 0;
if (sd.bytes == 4)
{
mask = 0xffffffffU;
msb = 0x80000000U;
}
tprintf("%s %x by %d\n", arith ? "sha" : "shl", v, count);
tprintf (": %s %d %d\n", bits(v, 8*sd.bytes), c, o);
while (count > 0)
{
c = (v & msb) ? 1 : 0;
v <<= 1;
v &= mask;
if (c != ((v & msb) ? 1 : 0))
o = 1;
tprintf (": %s %d %d\n", bits(v, 8*sd.bytes), c, o);
count --;
}
while (count < 0)
{
c = v & 1;
if (arith)
v = (v & msb) | (v >> 1);
else
v = (v >> 1) & (msb - 1);
tprintf (": %s %d %d\n", bits(v, 8*sd.bytes), c, o);
count ++;
}
put_dest (sd, v);
set_sz (v, sd.bytes);
if (setc)
set_c (c);
set_flags (FLAGBIT_O, o ? FLAGBIT_O : 0);
}
static int pcs[16];
static int ipcs = 0;
int
decode_m32c()
{
unsigned char op[40];
int opi;
int v, a, b;
long long ll;
srcdest sc, dc;
int imm;
int bitindex = -1;
int t0, t1=0, t2, t3=0;
int ta0, ta1, dif;
step_result = M32C_MAKE_STEPPED ();
decode_indirect (0, 0);
decode_index (0, 0);
next_opcode:
opi = 0;
m32c_opcode_pc = get_reg (pc);
tprintf("trace: decode pc = %06x\n", m32c_opcode_pc);
if (m32c_opcode_pc == 0)
{
int i;
printf("Abort: PC is zero, here from:\n");
for (i=0; i<4; i++)
printf(" 0x%06x\n", pcs[(ipcs+15-i)%16]);
return M32C_MAKE_HIT_BREAK ();
}
pcs[ipcs++] = m32c_opcode_pc;
ipcs %= 16;
/** VARY sss 000 001 010 011 100 */
/** VARY ddd 000 001 010 011 100 */
/** 0000 1001 indirect dest */
decode_indirect (0, 1);
goto next_opcode;
/** 0100 0001 indirect src */
decode_indirect (1, 0);
goto next_opcode;
/** 0100 1001 indirect src and dest */
decode_indirect (1, 1);
goto next_opcode;
/** 1010 ddd w dd01 1111 ABS.size dest */
prefix (0, 1, 0);
dc = decode_dest23 (ddd, dd, w+1);
v = sign_ext (get_src (dc), w?16:8);
a = v<0 ? -v : v;
tprintf("abs(%d) = %d\n", v, a);
set_osz(a, w+1);
put_dest (dc, a);
/** 0000 0001 1000 ddd w dd10 1110 ADC.size #IMM,dest */
prefix (0, 0, 0);
dc = decode_dest23 (ddd, dd, w+1);
imm = IMM (w+1);
MATH_OP (dc, imm, carry, +);
/** 0000 0001 1sss ddd w dd ss 0100 ADC.size src,dest */
prefix (0, 0, 0);
sc = decode_src23 (sss, ss, w+1);
dc = decode_dest23 (ddd, dd, w+1);
b = get_src (sc);
MATH_OP (dc, b, carry, +);
/** 1011 ddd w dd01 1110 ADCF.size dest */
prefix (0, 1, 0);
dc = decode_dest23 (ddd, dd, w+1);
MATH_OP (dc, 0, carry, +);
/** 1000 ddd w dd10 1110 ADD.size:G #IMM,dest */
prefix (0, 1, 0);
dc = decode_dest23(ddd, dd, w+1);
imm = IMM(w+1);
MATH_OP (dc, imm, 0, +);
/** 1000 ddd0 dd11 0001 ADD.L:G #IMM,dest */
prefix (0, 1, 0);
dc = decode_dest23(ddd, dd, 4);
imm = IMM(4);
MATH_OP (dc, imm, 0, +);
/** 111L ddd w dd11 immm ADD.size:Q #IMM,dest */
prefix (0, 1, 0);
dc = decode_dest23(ddd, dd, L ? 4 : (w+1));
imm = sign_ext (immm, 4);
MATH_OP (dc, imm, 0, +);
/** 00dd 011w ADD.size:S #IMM,dest */
prefix (0, 1, 0);
dc = decode_dest2(dd, w+1);
imm = IMM (w+1);
MATH_OP (dc, imm, 0, +);
/** 10i0 110d ADD.L:S #IMM,A0/A1 */
prefix (0, 0, 0);
dc = reg_sd (d ? a1 : a0);
imm = i ? 2 : 1;
MATH_OP (dc, imm, 0, +);
/** 1sss ddd w dd ss 1000 ADD.size:G src,dest */
prefix (1, 1, 0);
sc = decode_src23(sss, ss, w+1);
dc = decode_dest23(ddd, dd, w+1);
b = get_src (sc);
MATH_OP (dc, b, 0, +);
/** 1sss ddd1 dd ss 0010 ADD.L:G src,dest */
prefix (1, 1, 0);
sc = decode_src23(sss, ss, 4);
dc = decode_dest23(ddd, dd, 4);
b = get_src (sc);
MATH_OP (dc, b, 0, +);
/** 1011 0110 0001 0011 ADD.L:G #IMM16,SP */
prefix (0, 0, 0);
dc = reg_sd (sp);
b = sign_ext (IMM(2), 16);
MATH_OP (dc, b, 0, +);
/** 01ii 001i ADD.L:Q #IMM3,SP */
prefix (0, 0, 0);
dc = reg_sd (sp);
b = ii * 2 + i + 1;
MATH_OP (dc, b, 0, +);
/** 1011 0110 0000 0011 ADD.L:S #IMM8,SP */
prefix (0, 0, 0);
dc = reg_sd (sp);
b = sign_ext (IMM(1), 8);
MATH_OP (dc, b, 0, +);
/** 1000 ddd0 dd01 0001 ADDX #IMM,dest */
prefix (0, 1, 0);
dc = decode_dest23(ddd, dd, 4);
imm = sign_ext (IMM(1), 8);
MATH_OP (dc, imm, 0, +);
/** 1sss ddd0 dd ss 0010 ADDX src,dest */
prefix (1, 1, 0);
sc = decode_src23(sss, ss, 1);
dc = decode_dest23(ddd, dd, 4);
b = sign_ext (get_src (sc), 8);
MATH_OP (dc, b, 0, +);
/** 1111 ddd w dd01 immm ADJNZ.size #IMM,dest,label */
prefix (0, 0, 0);
dc = decode_dest23 (ddd, dd, w+1);
v = get_src (dc);
imm = sign_ext(immm, 4);
tprintf("%d + %d = %d\n", v, imm, v+imm);
v += imm;
put_dest (dc, v);
a = sign_ext (IMM(1), 8);
if ((v & (w ? 0xffff : 0xff)) != 0)
{
tprintf("jmp: %x + 2 + %d = ", get_reg (pc), a);
put_reg (pc, m32c_opcode_pc + 2 + a);
tprintf("%x\n", get_reg (pc));
}
/** 1000 ddd w dd11 1111 AND.size:G #IMM,dest */
prefix (0, 1, 0);
dc = decode_dest23(ddd, dd, w+1);
imm = IMM(w+1);
LOGIC_OP (dc, imm, &);
/** 01dd 110w AND.size:S #IMM,dest */
prefix (0, 1, 0);
dc = decode_dest2(dd, w+1);
imm = IMM (w+1);
LOGIC_OP (dc, imm, &);
/** 1sss ddd w dd ss 1101 AND.size:G src,dest */
prefix (1, 1, 0);
sc = decode_src23(sss, ss, w+1);
dc = decode_dest23(ddd, dd, w+1);
b = get_src (sc);
LOGIC_OP (dc, b, &);
/** 0000 0001 1101 sss0 ss00 1bit BAND src */
sc = decode_src23 (sss, ss, 1);
BIT_OPC (sc, bit, b & carry);
/** 1101 ddd0 dd11 0bit BCLR dest */
dc = decode_dest23 (ddd, dd, 1);
BIT_OP (dc, bit, 0);
/** 1100 ddd w dd10 1110 BITINDEX.size src */
prefix (0, 0, 0);
dc = decode_dest23 (ddd, dd, w+1);
bitindex = get_src (dc);
tprintf ("bitindex set to %d\n", bitindex);
goto next_opcode;
/** 1101 ddd0 dd01 0bit BMcnd dest */
prefix (0, 0, 0);
dc = decode_dest23 (ddd, dd, 1);
if (condition_true (IMM (1)))
put_bit2 (dc, bit, 1);
else
put_bit2 (dc, bit, 0);
/** 1101 1001 0c10 1cnd BMcnd C */
prefix (0, 0, 0);
if (condition_true (c * 8 + cnd))
set_c (1);
else
set_c (0);
/** 0000 0001 1101 sss0 ss01 1bit BNAND src */
prefix (0, 0, 0);
sc = decode_src23 (sss, ss, 1);
BIT_OPC (sc, bit, (!b) & carry);
/** 0000 0001 1101 sss0 ss11 0bit BNOR src */
prefix (0, 0, 0);
sc = decode_src23 (sss, ss, 1);
BIT_OPC (sc, bit, (!b) | carry);
/** 1101 ddd0 dd01 1bit BNOT dest */
prefix (0, 0, 0);
dc = decode_dest23 (ddd, dd, 1);
BIT_OP (dc, bit, !b);
/** 0000 0001 1101 sss0 ss00 0bit BNTST src */
prefix (0, 0, 0);
sc = decode_dest23 (sss, ss, 1);
b = get_bit2 (sc, bit);
set_zc (!b, !b);
/** 0000 0001 1101 sss0 ss11 1bit BNXOR src */
prefix (0, 0, 0);
sc = decode_src23 (sss, ss, 1);
BIT_OPC (sc, bit, !b ^ carry);
/** 0000 0001 1101 sss0 ss10 0bit BOR src */
prefix (0, 0, 0);
sc = decode_src23 (sss, ss, 1);
BIT_OPC (sc, bit, b | carry);
/** 0000 0000 BRK */
/* We report the break to our caller with the PC still pointing at the
breakpoint instruction. */
put_reg (pc, m32c_opcode_pc);
if (verbose)
printf("[break]\n");
if (in_gdb || (regs.r_intbl == 0 && regs.r_intbh == 0))
return M32C_MAKE_HIT_BREAK ();
if (mem_get_qi (0xFFFFE7) == 0xff)
trigger_based_interrupt (0);
else
trigger_fixed_interrupt (0xFFFFE4);
/** 1111 1110 GBRK */
/* This alternate break, which is not part of the chip's opcode set,
is here in case you need to debug a program that itself uses the
chip's BRK opcode. You'll need to modify your copy of GDB to use
this opcode instead of the real BRK. */
/* GDB Break. */
/* We report the break to our caller with the PC still pointing at the
breakpoint instruction. */
put_reg (pc, m32c_opcode_pc);
if (verbose)
printf("[gdb break]\n");
return M32C_MAKE_HIT_BREAK ();
/** 0000 1000 BRK2 */
if (verbose)
printf("[break2]\n");
if (in_gdb)
return M32C_MAKE_HIT_BREAK ();
if (mem_get_qi (0xFFFFE7) == 0xff)
trigger_based_interrupt (0);
else
trigger_fixed_interrupt (0xFFFFE4);
/** 1101 ddd0 dd11 1bit BSET dest */
dc = decode_dest23 (ddd, dd, 1);
BIT_OP (dc, bit, 1);
/** 1101 sss0 ss00 0bit BTST:G src */
prefix (0, 0, 0);
sc = decode_src23 (sss, ss, 1);
b = get_bit2 (sc, bit);
set_zc (!b, b);
/** 00bb 101b BTST:S src */
sc = decode_src23 (3, 3, 1); /* bit,base:19 */
b = get_bit2 (sc, bb*2 + b);
set_zc (!b, b);
/** 1101 ddd0 dd10 0bit BTSTC dest */
prefix (0, 0, 0);
sc = decode_dest23 (ddd, dd, 1);
b = get_bit2 (sc, bit);
set_zc (!b, b);
put_bit2 (sc, bit, 0);
/** 1101 ddd0 dd10 1bit BTSTS dest */
prefix (0, 0, 0);
sc = decode_dest23 (ddd, dd, 1);
b = get_bit2 (sc, bit);
set_zc (!b, b);
put_bit2 (sc, bit, 1);
/** 0000 0001 1101 sss0 ss10 1bit BXOR src */
prefix (0, 0, 0);
sc = decode_src23 (sss, ss, 1);
BIT_OPC (sc, bit, b ^ carry);
/** 0000 0001 1000 ddd w dd11 1110 CLIP.size #IMM1,#IMM2,dest */
prefix (0, 0, 0);
dc = decode_dest23 (ddd, dd, w+1);
a = sign_ext (IMM(w+1), w*8+8);
b = sign_ext (IMM(w+1), w*8+8);
v = sign_ext (get_src (dc), w*8+8);
tprintf("clip %d <= %d <= %d : ", a, v, b);
if (a > v)
v = a;
if (v > b)
v = b;
tprintf("%d\n", v);
put_dest (dc, v);
/** 1001 ddd w dd10 1110 CMP.size:G #IMM,dest */
prefix (0, 1, 0);
dc = decode_dest23 (ddd, dd, w+1);
v = get_src (dc);
imm = IMM(w+1);
cmp (v, imm, w+1);
/** 1010 ddd0 dd11 0001 CMP.L:G #IMM32,dest */
prefix (0, 1, 0);
dc = decode_dest23 (ddd, dd, 4);
v = get_src (dc);
imm = IMM(4);
cmp (v, imm, 4);
/** 1110 ddd w dd01 immm CMP.size:Q #IMM,dest */
prefix (0, 1, 0);
dc = decode_dest23 (ddd, dd, w+1);
v = get_src (dc);
immm = sign_ext (immm, 4);
cmp (v, immm, w+1);
/** 01dd 011w CMP.size:S #IMM,dest */
prefix (0, 1, 0);
dc = decode_dest2 (dd, w+1);
v = get_src (dc);
imm = sign_ext (IMM(w+1),w*8+8);
cmp (v, imm, w+1);
/** 1sss ddd w dd ss 0110 CMP.size:G src,dest */
prefix (1, 1, 0);
sc = decode_src23 (sss, ss, w+1);
dc = decode_dest23 (ddd, dd, w+1);
a = get_src (dc);
b = get_src (sc);
cmp (a, b, w+1);
/** 1sss ddd1 dd ss 0001 CMP.L:G src,dest */
prefix (1, 1, 0);
sc = decode_src23 (sss, ss, 4);
dc = decode_dest23 (ddd, dd, 4);
a = get_src (dc);
b = get_src (sc);
cmp (a, b, 4);
/** 01dd 000w CMP.size:S src,R0/R0L */
prefix (0, 1, 0);
dc = decode_dest2 (dd, w+1);
a = get_reg (w ? r0 : r0l);
b = get_src (dc);
cmp (a, b, w+1);
/** 1010 ddd0 dd01 0001 CMPX #IMM,dest */
prefix (0, 1, 0);
dc = decode_dest23 (ddd, dd, 4);
v = get_src (dc);
imm = sign_ext (IMM(1), 8);
cmp (v, imm, 4);
/** 0000 0001 1000 ddd w dd00 1110 DADC.size #IMM,dest */
DADDI(1,1);
/** 0000 0001 1sss ddd w dd ss 1000 DADC.size src,dest */
DADDV(1,1);
/** 0000 0001 1000 ddd w dd01 1110 DADD.size #IMM,dest */
DADDI(1,0);
/** 0000 0001 1sss ddd w dd ss 0000 DADD.size src,dest */
DADDV(1,0);
/** 1011 ddd w dd00 1110 DEC.size dest */
prefix (0, 1, 0);
dc = decode_dest23 (ddd, dd, w+1);
a = get_src (dc);
v = a-1;
tprintf ("%x -- = %x\n", a, v);
set_sz (v, w+1);
put_dest (dc, v);
/** 1011 0000 010w 0011 DIV.size #IMM */
prefix (0, 0, 0);
div_op (-1, 0, 0, 0, w+1);
/** 1000 sss w ss01 1110 DIV.size src */
prefix (0, 1, 0);
div_op (sss, ss, 0, 0, w+1);
/** 0000 0001 1010 sss1 ss01 1111 DIV.L src */
M32C_ONLY();
prefix (0, 0, 0);
div_op (sss, ss, 0, 0, 4);
/** 1011 0000 000w 0011 DIVU.size #IMM */
prefix (0, 0, 0);
div_op (-1, 0, 1, 0, w+1);
/** 1000 sss w ss00 1110 DIVU.size src */
prefix (0, 1, 0);
div_op (sss, ss, 1, 0, w+1);
/** 0000 0001 1010 sss1 ss00 1111 DIVU.L src */
M32C_ONLY();
prefix (0, 0, 0);
div_op (sss, ss, 1, 0, 4);
/** 1011 0010 010w 0011 DIVX.size #IMM */
prefix (0, 0, 0);
div_op (-1, 0, 0, 1, w+1);
/** 1001 sss w ss01 1110 DIVX.size src */
prefix (0, 1, 0);
div_op (sss, ss, 0, 1, w+1);
/** 0000 0001 1010 sss1 ss10 1111 DIVX.L src */
M32C_ONLY();
prefix (0, 0, 0);
div_op (sss, ss, 0, 1, 4);
/** 0000 0001 1001 ddd w dd00 1110 DSBB.size #IMM,dest */
DADDI(0,1);
/** 0000 0001 1sss ddd w dd ss 1010 DSBB.size src,dest */
DADDV(0,1);
/** 0000 0001 1001 ddd w dd01 1110 DSUB.size #IMM,dest */
DADDI(0,0);
/** 0000 0001 1sss ddd w dd ss 0010 DSUB.size src,dest */
DADDV(0,0);
/** 1110 1100 ENTER #IMM */
imm = IMM(1);
put_reg (sp, get_reg (sp) - 4);
mem_put_si (get_reg (sp), get_reg (fb));
put_reg (fb, get_reg (sp));
put_reg (sp, get_reg (sp) - imm);
/** 1111 1100 EXITD */
put_reg (sp, get_reg (fb));
put_reg (fb, mem_get_si (get_reg (sp)));
put_reg (sp, get_reg (sp) + 4);
put_reg (pc, mem_get_si (get_reg (sp)));
put_reg (sp, get_reg (sp) + 4);
/** 1100 ddd w dd01 1110 EXTS.size dest */
prefix (0, 0, 0);
dc = decode_dest23 (ddd, dd, w+1);
v = sign_ext (get_src (dc), (w+1)*8);
dc = widen_sd (dc);
put_dest (dc, v);
set_sz (v, (w+1)*2);
/** 0000 0001 1sss ddd0 dd ss 0111 EXTS.B src,dest */
prefix (0, 0, 0);
sc = decode_src23 (sss, ss, 1);
dc = decode_dest23 (ddd, dd, 2);
v = sign_ext (get_src (sc), 8);
put_dest (dc, v);
set_sz (v, 16);
/** 0000 0001 1sss ddd0 dd ss 1011 EXTZ src,dest */
prefix (0, 0, 0);
sc = decode_src23 (sss, ss, 1);
dc = decode_dest23 (ddd, dd, 2);
v = get_src (sc);
put_dest (dc, v);
set_sz (v, 16);
/** 1101 0011 1110 1dst FCLR dest */
set_flags (1 << dst, 0);
/** 1001 1111 FREIT */
NOTYET();
/** 1101 0001 1110 1dst FSET dest */
set_flags (1 << dst, 1 << dst);
/** 1010 ddd w dd00 1110 INC.size dest */
prefix (0, 1, 0);
dc = decode_dest23 (ddd, dd, w+1);
a = get_src (dc);
v = a+1;
tprintf ("%x ++ = %x\n", a, v);
set_sz (v, w+1);
put_dest (dc, v);
/** 1000 sss0 ss0w 0011 INDEXB.size src */
INDEXOP(1, 1, 1);
/** 1010 sss0 ss0w 0011 INDEXBD.size src */
INDEXOP(1, 0, 1);
/** 1100 sss0 ss0w 0011 INDEXBS.size src */
INDEXOP(1, 1, 0);
/** 1001 sss0 ss1w 0011 INDEXL.size src */
INDEXOP(4, 1, 1);
/** 1011 sss0 ss1w 0011 INDEXLD.size src */
INDEXOP(4, 0, 1);
/** 1001 sss0 ss0w 0011 INDEXLS.size src */
INDEXOP(4, 1, 0);
/** 1000 sss0 ss1w 0011 INDEXW.size src */
INDEXOP(2, 1, 1);
/** 1010 sss0 ss1w 0011 INDEXWD.size src */
INDEXOP(2, 0, 1);
/** 1100 sss0 ss1w 0011 INDEXWS.size src */
INDEXOP(2, 1, 0);
/** 1011 1110 vector00 INT #IMM */
prefix (0, 0, 0);
trigger_based_interrupt (vector);
/** 1011 1111 INTO */
prefix (0, 0, 0);
if (FLAG_O)
trigger_fixed_interrupt (0xffffe0);
/** 1ccc 101c Jcnd label */
prefix (0, 0, 0);
v = sign_ext (IMM(1), 8);
if (condition_true (ccc*2+c))
put_reg (pc, m32c_opcode_pc + 1 + v);
/** 01dd 101d JMP.S label */
prefix (0, 0, 0);
put_reg (pc, m32c_opcode_pc + (dd*2+d) + 2);
/** 1011 1011 JMP.B label */
prefix (0, 0, 0);
imm = sign_ext (IMM(1), 8);
if (imm == -1)
{
if (verbose)
printf("[jmp-to-self detected as exit]\n");
return M32C_MAKE_HIT_BREAK ();
}
put_reg (pc, m32c_opcode_pc + 1 + imm);
/** 1100 1110 JMP.W label */
prefix (0, 0, 0);
imm = sign_ext (IMM(2), 16);
put_reg (pc, m32c_opcode_pc + 1 + imm);
/** 1100 1100 JMP.A label */
prefix (0, 0, 0);
imm = IMM(3);
put_reg (pc, imm);
/** 1100 sss1 ss00 1111 JMPI.W src */
prefix (0, 0, 0);
sc = decode_src23 (sss, ss, 2);
a = get_src (sc);
a = sign_ext (a, 16);
put_reg (pc, m32c_opcode_pc + a);
/** 1000 sss0 ss00 0001 JMPI.A src */
prefix (0, 0, 0);
sc = decode_src23 (sss, ss, 3);
a = get_src (sc);
put_reg (pc, a);
/** 1101 1100 JMPS #IMM8 */
prefix (0, 0, 0);
imm = IMM(1);
a = 0xff0000 + mem_get_hi (0xfffe00 - imm * 2);
put_reg (pc, a);
/** 1100 1111 JSR.W label */
prefix (0, 0, 0);
imm = sign_ext (IMM(2), 16);
put_reg (sp, get_reg (sp) - 4);
mem_put_si (get_reg (sp), get_reg (pc));
put_reg (pc, m32c_opcode_pc + imm + 1);
/** 1100 1101 JSR.A label */
prefix (0, 0, 0);
imm = IMM(3);
put_reg (sp, get_reg (sp) - 4);
mem_put_si (get_reg (sp), get_reg (pc));
put_reg (pc, imm);
/** 1100 sss1 ss01 1111 JSRI.W src */
prefix (0, 0, 0);
sc = decode_src23 (sss, ss, 2);
a = get_src (sc);
a = sign_ext (a, 16);
put_reg (sp, get_reg (sp) - 4);
mem_put_si (get_reg (sp), get_reg (pc));
put_reg (pc, m32c_opcode_pc + a);
/** 1001 sss0 ss00 0001 JSRI.A src */
prefix (0, 0, 0);
sc = decode_src23 (sss, ss, 3);
a = get_src (sc);
put_reg (sp, get_reg (sp) - 4);
mem_put_si (get_reg (sp), get_reg (pc));
put_reg (pc, a);
/** 1101 1101 JSRS #IMM8 */
prefix (0, 0, 0);
imm = IMM(1);
a = 0xff0000 + mem_get_hi (0xfffe00 - imm * 2);
put_reg (sp, get_reg (sp) - 4);
mem_put_si (get_reg (sp), get_reg (pc));
put_reg (pc, a);
/** 1101 0101 1010 1dst LDC #IMM16,dest */
imm = IMM(2);
dc = decode_cr_b (dst, CR_B_DCT0);
put_dest (dc, imm);
/** 1101 0101 0010 1dst LDC #IMM24,dest */
imm = IMM(3);
dc = decode_cr_b (dst, CR_B_INTB);
put_dest (dc, imm);
/** 1101 0101 0110 1dst LDC #IMM24,dest */
imm = IMM(3);
dc = decode_cr_b (dst, CR_B_DMA0);
put_dest (dc, imm);
/** 0000 0001 1101 sss1 ss00 1dst LDC src,dest */
prefix (0, 0, 0);
sc = decode_src23 (sss, ss, 2);
dc = decode_cr_b (dst, CR_B_DCT0);
a = get_src (sc);
put_dest (dc, a);
/** 1101 sss1 ss00 0dst LDC src,dest */
prefix (0, 0, 0);
sc = decode_src23 (sss, ss, 3);
dc = decode_cr_b (dst, CR_B_INTB);
a = get_src (sc);
put_dest (dc, a);
/** 0000 0001 1101 sss1 ss00 0dst LDC src,dest */
prefix (0, 0, 0);
sc = decode_src23 (sss, ss, 3);
dc = decode_cr_b (dst, CR_B_DMA0);
a = get_src (sc);
put_dest (dc, a);
/** 1011 0110 1100 0011 LDCTX */
NOTYET();
/** 1101 0101 1110 1imm LDIPL #IMM */
set_flags (0x7000, imm*0x1000);
/** 0000 0001 1000 ddd w dd11 1111 MAX.size #IMM,dest */
prefix (0, 0, 0);
w++;
dc = decode_dest23 (ddd, dd, w);
imm = sign_ext (IMM(w), w*8);
a = sign_ext (get_src (dc), w*8);
tprintf ("max %d %d\n", imm, a);
if (imm > a)
put_dest (dc, imm);
/** 0000 0001 1sss ddd w dd ss 1101 MAX.size src,dest */
prefix (0, 0, 0);
w++;
sc = decode_src23 (sss, ss, w);
dc = decode_dest23 (ddd, dd, w);
b = sign_ext (get_src (sc), w*8);
a = sign_ext (get_src (dc), w*8);
tprintf ("max %d %d\n", b, a);
if (b > a)
put_dest (dc, b);
/** 0000 0001 1000 ddd w dd10 1111 MIN.size #IMM,dest */
prefix (0, 0, 0);
w++;
dc = decode_dest23 (ddd, dd, w);
imm = sign_ext (IMM(w), w*8);
a = sign_ext (get_src (dc), w*8);
tprintf ("min %d %d\n", imm, a);
if (imm < a)
put_dest (dc, imm);
/** 0000 0001 1sss ddd w dd ss 1100 MIN.size src,dest */
prefix (0, 0, 0);
w++;
sc = decode_src23 (sss, ss, w);
dc = decode_dest23 (ddd, dd, w);
b = sign_ext (get_src (sc), w*8);
a = sign_ext (get_src (dc), w*8);
tprintf ("min %d %d\n", b, a);
if (b < a)
put_dest (dc, b);
/** 1001 ddd w dd10 1111 MOV.size:G #IMM,dest */
dc = decode_dest23 (ddd, dd, w+1);
imm = IMM(w+1);
v = imm;
tprintf("%x = %x\n", v, v);
set_sz(v, w+1);
put_dest (dc, v);
/** 1011 ddd0 dd11 0001 MOV.L:G #IMM,dest */
dc = decode_dest23 (ddd, dd, 4);
imm = IMM(4);
v = imm;
tprintf("%x = %x\n", v, v);
set_sz(v, 4);
put_dest (dc, v);
/** 1111 ddd w dd10 immm MOV.size:Q #IMM4,dest */
dc = decode_dest23 (ddd, dd, w+1);
imm = sign_ext (immm, 4);
v = imm;
tprintf("%x = %d\n", v, v);
set_sz(v, w+1);
put_dest (dc, v);
/** 00dd 010w MOV.size:S #IMM,dest */
prefix (0, 1, 0);
dc = decode_dest2 (dd, w+1);
imm = IMM(w+1);
put_dest (dc, imm);
set_sz (imm, w+1);
/** 10w1 110d MOV.size:S #IMM,a0/a1 */
imm = IMM(w ? 3 : 2);
put_reg (d ? a1 : a0, imm);
set_sz (imm & addr_mask, w+1);
/** 00dd 001w MOV.size:Z #0,dest */
prefix (0, 1, 0);
dc = decode_dest2 (dd, w+1);
put_dest (dc, 0);
set_sz (0, w+1);
/** 1sss ddd w dd ss 1011 MOV.size:G src,dest */
prefix (1, 1, 0);
sc = decode_src23 (sss, ss, w+1);
dc = decode_dest23 (ddd, dd, w+1);
v = get_src (sc);
put_dest (dc, v);
set_sz (v, w+1);
/** 1sss ddd1 dd ss 0011 MOV.L:G src,dest */
prefix (1, 1, 0);
sc = decode_src23 (sss, ss, 4);
dc = decode_dest23 (ddd, dd, 4);
v = get_src (sc);
put_dest (dc, v);
set_sz (v, 4);
/** VARY SS 01 10 11 */
/** 00SS 100w MOV.size:S src,R0L/R0 */
prefix (0, 1, 0);
sc = decode_dest2 (SS, w+1);
v = get_src (sc);
put_reg (w ? r0 : r0l, v);
set_sz (v, w+1);
/** 01ss 111w MOV.size:S src,R1L/R1 */
prefix (0, 1, 0);
sc = decode_dest2 (ss, w+1);
v = get_src (sc);
put_reg (w ? r1 : r1l, v);
set_sz (v, w+1);
/** VARY DD 01 10 11 */
/** 00DD 000w MOV.size:S R0L/R0,dest */
prefix (0, 1, 0);
dc = decode_dest2 (DD, w+1);
v = get_reg (w ? r0 : r0l);
put_dest (dc, v);
set_sz (v, w+1);
/** 01ss 100d MOV.L:S src,A0/A1 */
prefix (0, 1, 0);
sc = decode_dest2 (ss, 4);
v = get_src (sc);
put_reg (d ? a1 : a0, v);
set_sz (v, 4);
/** 1011 ddd w dd00 1111 MOV.size:G dsp:8[SP], dest */
prefix (0, 0, 0);
imm = IMM(1);
dc = decode_dest23 (ddd, dd, w+1);
a = get_reg (sp) + sign_ext (imm, 8);
a &= addr_mask;
if (w)
v = mem_get_hi (a);
else
v = mem_get_qi (a);
put_dest (dc, v);
set_sz (v, w+1);
/** 1010 sss w ss00 1111 MOV.size:G src,dsp:8[SP] */
prefix (0, 0, 0);
sc = decode_dest23 (sss, ss, w+1);
imm = IMM(1);
a = get_reg (sp) + sign_ext (imm, 8);
a &= addr_mask;
v = get_src (sc);
if (w)
mem_put_hi (a, v);
else
mem_put_qi (a, v);
set_sz (v, w+1);
/** 1101 sss1 ss01 1dst MOVA src,dest */
static reg_id map[8] = { r2r0, r3r1, a0, a1 };
prefix (0, 0, 0);
sc = decode_src23 (sss, ss, 1);
if (!sc.mem || !map[dst])
UNSUPPORTED();
put_reg (map[dst], sc.u.addr);
/** 0000 0001 1011 ddd0 dd hl 1110 MOVdir R0L,dest */
prefix (0, 0, 0);
dc = decode_dest23 (ddd, dd, 1);
a = get_src (dc);
b = get_reg (r0l);
switch (hl)
{
case 0: a = (a & 0xf0) | (b & 0x0f); break;
case 1: a = (a & 0xf0) | ((b>>4) & 0x0f); break;
case 2: a = (a & 0x0f) | ((b & 0x0f)<<4); break;
case 3: a = (a & 0x0f) | (b & 0xf0); break;
}
put_dest (dc, a);
/** 0000 0001 1010 sss0 ss hl 1110 MOVdir src,R0L */
prefix (0, 0, 0);
sc = decode_dest23 (sss, ss, 1);
a = get_reg (r0l);
b = get_src (dc);
switch (hl)
{
case 0: a = (a & 0xf0) | (b & 0x0f); break;
case 1: a = (a & 0xf0) | ((b>>4) & 0x0f); break;
case 2: a = (a & 0x0f) | ((b & 0x0f)<<4); break;
case 3: a = (a & 0x0f) | (b & 0xf0); break;
}
put_reg (r0l, a);
/** 1011 ddd0 dd01 0001 MOVX #IMM,dest */
prefix (0, 1, 0);
dc = decode_dest23 (ddd, dd, 4);
imm = sign_ext (IMM(1), 8);
put_dest (dc, imm);
set_sz (imm, 1);
/** 1000 ddd w dd01 1111 MUL.size #IMM,dest */
prefix (0, 1, 0);
w ++;
dc = decode_dest23 (ddd, dd, w);
v = sign_ext (get_src (dc), w*8);
imm = sign_ext (IMM(w), w*8);
tprintf("%d * %d = %d\n", v, imm, v*imm);
v *= imm;
dc = widen_sd (dc);
put_dest (dc, v);
/** 1sss ddd w dd ss 1100 MUL.size src,dest */
prefix (1, 1, 0);
w ++;
sc = decode_src23 (sss, ss, w);
dc = decode_dest23 (ddd, dd, w);
a = sign_ext (get_src (sc), w*8);
b = sign_ext (get_src (dc), w*8);
tprintf("%d * %d = %d\n", a, b, a*b);
v = a * b;
dc = widen_sd (dc);
put_dest (dc, v);
/** 0000 0001 1000 sss1 ss01 1111 MUL.L src,R2R0 */
M32C_ONLY();
prefix (0, 0, 0);
sc = decode_src23 (sss, ss, 4);
a = sign_ext (get_src (sc), 32);
b = sign_ext (get_reg (r2r0), 32);
ll = (long long)a * (long long)b;
tprintf("%d * %d = %lld (%llx)\n", a, b, ll, ll);
if (ll < b2minsigned[4] || ll > b2maxsigned[4])
set_flags (FLAGBIT_O, FLAGBIT_O);
else
set_flags (FLAGBIT_O, 0);
put_reg (r2r0, (int)ll);
/** 1100 sss1 ss11 1110 MULEX src */
prefix (0, 1, 0);
sc = decode_dest23 (sss, ss, 2);
a = sign_ext (get_src (sc), 16);
b = sign_ext (get_reg (r2r0), 32);
ll = (long long)a * (long long)b;
tprintf("%d * %d = %lld (%llx)\n", a, b, ll, ll);
put_reg (r2r0, (int)ll);
put_reg (r1, (int)(ll >> 32));
/** 1000 ddd w dd00 1111 MULU.size #IMM,dest */
prefix (0, 1, 0);
w ++;
dc = decode_dest23 (ddd, dd, w);
v = get_src (dc);
imm = IMM(w);
tprintf("%d * %d = %d\n", v, imm, v*imm);
v *= imm;
dc = widen_sd (dc);
put_dest (dc, v);
/** 1sss ddd w dd ss 0100 MULU.size src,dest */
prefix (1, 1, 0);
w ++;
sc = decode_src23 (sss, ss, w);
dc = decode_dest23 (ddd, dd, w);
a = get_src (sc);
b = get_src (dc);
tprintf("%d * %d = %d\n", a, b, a*b);
v = a * b;
dc = widen_sd (dc);
put_dest (dc, v);
/** 0000 0001 1000 sss1 ss00 1111 MULU.L src,R2R0 */
M32C_ONLY();
prefix (0, 0, 0);
sc = decode_src23 (sss, ss, 4);
a = get_src (sc);
b = get_reg (r2r0);
ll = (long long)a * (long long)b;
tprintf("%d * %d = %lld (%llx)\n", a, b, ll, ll);
if (ll < b2minsigned[4] || ll > b2maxsigned[4])
set_flags (FLAGBIT_O, FLAGBIT_O);
else
set_flags (FLAGBIT_O, 0);
put_reg (r2r0, (int)ll);
/** 1010 ddd w dd10 1111 NEG.size dest */
prefix (0, 1, 0);
dc = decode_dest23 (ddd, dd, w+1);
a = sign_ext (get_src (dc), (w+1)*8);
v = -a;
tprintf("%d * -1 = %d\n", a, v);
set_oszc(v, w+1, v==0);
put_dest (dc, v);
/** 1101 1110 NOP */
tprintf("nop\n");
/** 1010 ddd w dd01 1110 NOT.size dest */
prefix (0, 1, 0);
dc = decode_dest23 (ddd, dd, w+1);
a = get_src (dc);
v = ~a;
tprintf("~ %x = %x\n", a, v);
set_sz(v, w+1);
put_dest (dc, v);
/** 1000 ddd w dd10 1111 OR.size:G #IMM,dest */
prefix (0, 1, 0);
dc = decode_dest23(ddd, dd, w+1);
imm = IMM(w+1);
LOGIC_OP (dc, imm, |);
/** 01dd 010w OR.size:S #IMM,dest */
prefix (0, 1, 0);
dc = decode_dest2(dd, w+1);
imm = IMM (w+1);
LOGIC_OP (dc, imm, |);
/** 1sss ddd w dd ss 0101 OR.size:G src,dest */
prefix (1, 1, 0);
sc = decode_src23(sss, ss, w+1);
dc = decode_dest23(ddd, dd, w+1);
b = get_src (sc);
LOGIC_OP (dc, b, |);
/** 1011 ddd w dd10 1111 POP.size dest */
prefix (0, 1, 0);
dc = decode_dest23 (ddd, dd, w+1);
if (w)
a = mem_get_hi (get_reg (sp));
else
a = mem_get_qi (get_reg (sp));
put_reg (sp, get_reg (sp) + 2);
tprintf("pop%s: %x\n", w ? "hi" : "qi", a);
put_dest (dc, a);
/** 1101 0011 1010 1dst POPC dest */
prefix (0, 0, 0);
dc = decode_cr_b (dst, CR_B_DCT0);
a = mem_get_hi (get_reg (sp));
put_reg (sp, get_reg (sp) + 2);
tprintf("pophi: %x\n", a);
put_dest (dc, a);
/** 1101 0011 0010 1dst POPC dest */
prefix (0, 0, 0);
dc = decode_cr_b (dst, CR_B_INTB);
a = mem_get_si (get_reg (sp));
put_reg (sp, get_reg (sp) + 4);
tprintf("popsi: %x\n", a);
put_dest (dc, a);
/** 1000 1110 POPM dest */
static int map[] = { r0, r1, r2, r3, a0, a1, sb, fb };
prefix (0, 0, 0);
imm = IMM(1);
tprintf("popm: %x\n", imm);
for (a=0; a<4; a++)
if (imm & (1<<a))
{
v = mem_get_hi (get_reg (sp));
put_reg (map[a], v);
put_reg (sp, get_reg (sp) + 2);
}
for (; a<8; a++)
if (imm & (1<<a))
{
v = mem_get_si (get_reg (sp));
put_reg (map[a], v);
put_reg (sp, get_reg (sp) + 4);
}
/** 1010 111w PUSH.size #IMM */
prefix (0, 0, 0);
imm = IMM(w+1);
tprintf("push%s: %x\n", w ? "hi" : "qi", imm);
int a = get_reg (sp) - 2;
if (w)
mem_put_hi (a, imm);
else
mem_put_qi (a, imm);
put_reg (sp, a);
/** 1100 sss w ss00 1110 PUSH.size src */
prefix (0, 1, 0);
sc = decode_dest23 (sss, ss, w+1);
a = get_src (sc);
put_reg (sp, get_reg (sp) - 2);
if (w)
mem_put_hi (get_reg (sp), a);
else
mem_put_qi (get_reg (sp), a);
tprintf("push%s: %x\n", w ? "hi" : "qi", a);
/** 1011 0110 0101 0011 PUSH.L #IMM32 */
imm = IMM(4);
put_reg (sp, get_reg (sp) - 4);
mem_put_si (get_reg (sp), imm);
/** 1010 sss0 ss00 0001 PUSH.L src */
prefix (0, 1, 0);
sc = decode_dest23 (sss, ss, 4);
a = get_src (sc);
put_reg (sp, get_reg (sp) - 4);
mem_put_si (get_reg (sp), a);
/** 1011 0sa0 ss00 0001 PUSHA src */
prefix (0, 0, 0);
sc = decode_dest23 (sa, ss, 1);
put_reg (sp, get_reg (sp) - 4);
mem_put_hi (get_reg (sp), sc.u.addr);
tprintf("pushsi: %x\n", sc.u.addr);
/** 1101 0001 1010 1src PUSHC src */
prefix (0, 0, 0);
sc = decode_cr_b (src, CR_B_DCT0);
a = get_src (sc);
put_reg (sp, get_reg (sp) - 2);
mem_put_hi (get_reg (sp), a);
tprintf("pushhi: %x\n", a);
/** 1101 0001 0010 1src PUSHC src */
prefix (0, 0, 0);
sc = decode_cr_b (src, CR_B_INTB);
a = get_src (sc);
put_reg (sp, get_reg (sp) - 4);
mem_put_si (get_reg (sp), a);
tprintf("pushsi: %x\n", a);
/** 1000 1111 PUSHM src */
static int map[] = { fb, sb, a1, a0, r3, r2, r1, r0 };
imm = IMM(1);
tprintf("pushm: %x\n", imm);
for (a=0; a<4; a++)
if (imm & (1<<a))
{
put_reg (sp, get_reg (sp) - 4);
v = get_reg (map[a]);
mem_put_si (get_reg (sp), v);
}
for (; a<8; a++)
if (imm & (1<<a))
{
put_reg (sp, get_reg (sp) - 2);
v = get_reg (map[a]);
mem_put_hi (get_reg (sp), v);
}
/** 1001 1110 REIT */
a = get_reg (sp);
put_reg (pc, mem_get_si (a));
a += 4;
put_reg (flags, mem_get_hi (a));
a += 2;
put_reg (sp, a);
/** 1011 1000 010w 0011 RMPA.size */
int count = get_reg (r3);
int list1 = get_reg (a0);
int list2 = get_reg (a1);
long long sum = get_reg_ll (r3r1r2r0) & 0xffffff;
while (count)
{
if (w)
{
a = sign_ext (mem_get_hi (list1), 16);
b = sign_ext (mem_get_hi (list2), 16);
}
else
{
a = sign_ext (mem_get_qi (list1), 8);
b = sign_ext (mem_get_qi (list2), 8);
}
tprintf("%lld + %d * %d = ", sum, a, b);
sum += a * b;
tprintf("%lld\n", sum);
list1 += w ? 2 : 1;
list2 += w ? 2 : 1;
count --;
}
put_reg (r3, count);
put_reg (a0, list1);
put_reg (a1, list2);
put_reg (r2r0, (int)(sum & 0xffffffffU));
put_reg (r1, (int)(sum >> 32));
/** 1011 ddd w dd10 1110 ROLC.size dest */
prefix (0, 1, 0);
dc = decode_dest23 (ddd, dd, w+1);
rot_op (dc, 1, 1);
/** 1010 ddd w dd10 1110 RORC.size dest */
prefix (0, 1, 0);
dc = decode_dest23 (ddd, dd, w+1);
rot_op (dc, 1, -1);
/** 1110 ddd w dd10 immm ROT.size #IMM, dest */
prefix (0, 1, 0);
dc = decode_dest23 (ddd, dd, w+1);
rot_op (dc, IMM4(), -1);
/** 1010 ddd w dd11 1111 ROT.size R1H,dest */
prefix (0, 1, 0);
dc = decode_dest23 (ddd, dd, w+1);
a = sign_ext (get_reg (r1h), 8);
rot_op (dc, a, -1);
/** 1101 1111 RTS */
put_reg (pc, mem_get_si (get_reg (sp)));
put_reg (sp, get_reg (sp) + 4);
/** 0000 0001 1001 ddd w dd10 1110 SBB.size #IMM, dest */
prefix (0, 0, 0);
dc = decode_dest23 (ddd, dd, w+1);
imm = IMM (w+1);
MATH_OP (dc, imm, !carry, -);
/** 0000 0001 1sss ddd w dd ss 0110 SBB.size src,dest */
prefix (0, 0, 0);
sc = decode_src23 (sss, ss, w+1);
dc = decode_dest23 (ddd, dd, w+1);
MATH_OP (dc, get_src (sc), !carry, -);
/** 1101 ddd1 dd11 cond SCcond dest */
prefix (0, 1, 0);
dc = decode_dest23 (ddd, dd, 2);
if (condition_true (cond))
put_dest (dc, 1);
else
put_dest (dc, 0);
/** 1011 1000 110w 0011 SCMPU.size */
ta0 = get_reg (a0);
ta1 = get_reg (a1);
for (;;)
{
t0 = mem_get_qi (ta0);
t2 = mem_get_qi (ta1);
if (w)
{
t1 = mem_get_qi (ta0 + 1);
t3 = mem_get_qi (ta1 + 1);
}
dif = t0 - t2;
if (dif == 0 && t0 != 0 && w)
dif = t1 - t3;
set_oszc (dif, 1, dif > 0);
ta0 += w ? 2 : 1;
ta1 += w ? 2 : 1;
if (t0 == 0 || t0 != t2)
break;
if (w && (t1 == 0 || t1 != t3))
break;
}
/** 1111 ddd w dd00 immm SHA.size #IMM,dest */
prefix (0, 1, 0);
dc = decode_dest23 (ddd, dd, w+1);
shift_op (dc, 1, IMM4(), 1);
/** 1010 ddd0 dd10 0001 SHA.L #IMM,dest */
prefix (0, 1, 0);
dc = decode_dest23 (ddd, dd, 4);
imm = sign_ext (IMM(1), 8);
shift_op (dc, 1, imm, 1);
/** 1011 ddd w dd11 1110 SHA.size R1H,dest */
prefix (0, 1, 0);
dc = decode_dest23 (ddd, dd, w+1);
a = sign_ext (get_reg (r1h), 8);
shift_op (dc, 1, a, 1);
/** 1100 ddd0 dd01 0001 SHA.L R1H,dest */
prefix (0, 1, 0);
dc = decode_dest23 (ddd, dd, 4);
a = sign_ext (get_reg (r1h), 8);
shift_op (dc, 1, a, 1);
/** 1100 ddd0 dd10 0001 SHANC.L #IMM,dest */
M32C_ONLY();
prefix (0, 1, 0);
dc = decode_dest23 (ddd, dd, 4);
imm = sign_ext (IMM(1), 8);
shift_op (dc, 1, imm, 0);
/** 1110 ddd w dd00 immm SHL.size #IMM, dest */
prefix (0, 1, 0);
dc = decode_dest23 (ddd, dd, w+1);
shift_op (dc, 0, IMM4(), 1);
/** 1001 ddd0 dd10 0001 SHL.L #IMM, dest */
prefix (0, 1, 0);
dc = decode_dest23 (ddd, dd, 4);
imm = sign_ext (IMM(1), 8);
shift_op (dc, 0, imm, 1);
/** 1010 ddd w dd11 1110 SHL.size R1H,dest */
prefix (0, 1, 0);
dc = decode_dest23 (ddd, dd, w+1);
a = sign_ext (get_reg (r1h), 8);
shift_op (dc, 0, a, 1);
/** 1100 ddd0 dd00 0001 SHL.L R1H,dest */
prefix (0, 1, 0);
dc = decode_dest23 (ddd, dd, 4);
a = sign_ext (get_reg (r1h), 8);
shift_op (dc, 0, a, 1);
/** 1000 ddd0 dd10 0001 SHLNC.L #IMM,dest */
M32C_ONLY();
prefix (0, 1, 0);
dc = decode_dest23 (ddd, dd, 4);
imm = sign_ext (IMM(1), 8);
shift_op (dc, 0, imm, 0);
/** 1011 0010 100w 0011 SIN.size */
v = get_reg (a0);
a = get_reg (a1);
b = get_reg (r3);
if (b) for (;b;)
{
if (w)
mem_put_hi(a, mem_get_hi (v));
else
mem_put_qi(a, mem_get_qi (v));
a += w ? 2 : 1;
b --;
}
put_reg (a0, v);
put_reg (a1, a);
put_reg (r3, b);
/** 1011 0110 100w 0011 SMOVB.size */
v = get_reg (a0);
a = get_reg (a1);
b = get_reg (r3);
if (b) for (;b;)
{
if (w)
mem_put_hi(a, mem_get_hi (v));
else
mem_put_qi(a, mem_get_qi (v));
v -= w ? 2 : 1;
a -= w ? 2 : 1;
b --;
}
put_reg (a0, v);
put_reg (a1, a);
put_reg (r3, b);
/** 1011 0000 100w 0011 SMOVF.size */
v = get_reg (a0);
a = get_reg (a1);
b = get_reg (r3);
if (b) for (;b;)
{
if (w)
mem_put_hi(a, mem_get_hi (v));
else
mem_put_qi(a, mem_get_qi (v));
v += w ? 2 : 1;
a += w ? 2 : 1;
b --;
}
put_reg (a0, v);
put_reg (a1, a);
put_reg (r3, b);
/** 1011 1000 100w 0011 SMOVU.size */
v = get_reg (a0);
a = get_reg (a1);
do
{
if (w)
mem_put_hi(a, (t0 = mem_get_hi (v)));
else
mem_put_qi(a, (t0 = mem_get_qi (v)));
v += w ? 2 : 1;
a += w ? 2 : 1;
if (t0 == 0
|| (w && ((t0 & 0xff) == 0 || (t0 & 0xff00) == 0)))
break;
} while (1);
put_reg (a0, v);
put_reg (a1, a);
/** 1011 0100 100w 0011 SOUT.size */
v = get_reg (a0);
a = get_reg (a1);
b = get_reg (r3);
for (;b;)
{
if (w)
mem_put_hi(a, mem_get_hi (v));
else
mem_put_qi(a, mem_get_qi (v));
v += w ? 2 : 1;
b --;
}
put_reg (a0, v);
put_reg (a1, a);
put_reg (r3, b);
/** 1011 1000 000w 0011 SSTR.size */
a = get_reg (a1);
b = get_reg (r3);
v = get_reg (w ? r0 : r0l);
for (;b;)
{
if (w)
mem_put_hi(a, v);
else
mem_put_qi(a, v);
a += w ? 2 : 1;
b --;
}
put_reg (a1, a);
put_reg (r3, b);
/** 0000 0001 1101 ddd1 dd01 0src STC src,dest */
prefix (0, 0, 0);
dc = decode_dest23 (ddd, dd, 4);
sc = decode_cr_b (src, CR_B_DMA0);
a = get_src (sc);
put_dest (dc, a);
/** 0000 0001 1101 ddd1 dd01 1src STC src,dest */
prefix (0, 0, 0);
dc = decode_dest23 (ddd, dd, 2);
sc = decode_cr_b (src, CR_B_DCT0);
a = get_src (sc);
put_dest (dc, a);
/** 1101 ddd1 dd01 0src STC src,dest */
prefix (0, 0, 0);
dc = decode_dest23 (ddd, dd, 4);
sc = decode_cr_b (src, CR_B_INTB);
a = get_src (sc);
put_dest (dc, a);
/** 1011 0110 1101 0011 STCX abs16,abs24 */
NOTYET();
/** 1001 ddd w dd01 1111 STNZ.size #IMM,dest */
prefix (0, 1, 0);
dc = decode_dest23 (ddd, dd, w+1);
imm = IMM(w+1);
if (! FLAG_Z)
put_dest (dc, imm);
/** 1001 ddd w dd00 1111 STZ.size #IMM,dest */
prefix (0, 1, 0);
dc = decode_dest23 (ddd, dd, w+1);
imm = IMM(w+1);
if (FLAG_Z)
put_dest (dc, imm);
/** 1001 ddd w dd11 1111 STZX.size #IMM1,#IMM2,dest */
prefix (0, 1, 0);
dc = decode_dest23 (ddd, dd, w+1);
a = IMM(w+1);
b = IMM(w+1);
if (FLAG_Z)
put_dest (dc, a);
else
put_dest (dc, b);
/** 1000 ddd w dd11 1110 SUB.size:G #IMM,dest */
prefix (0, 1, 0);
dc = decode_dest23(ddd, dd, w+1);
imm = IMM(w+1);
MATH_OP (dc, imm, 0, -);
/** 1001 ddd0 dd11 0001 SUB.L:G #IMM,dest */
prefix (0, 1, 0);
dc = decode_dest23(ddd, dd, 4);
imm = IMM(4);
MATH_OP (dc, imm, 0, -);
/** 00dd 111w SUB.size:S #IMM,dest */
prefix (0, 1, 0);
dc = decode_dest2(dd, w+1);
imm = IMM (w+1);
MATH_OP (dc, imm, 0, -);
/** 1sss ddd w dd ss 1010 SUB.size:G src,dest */
prefix (1, 1, 0);
sc = decode_src23(sss, ss, w+1);
dc = decode_dest23(ddd, dd, w+1);
b = get_src (sc);
MATH_OP (dc, b, 0, -);
/** 1sss ddd1 dd ss 0000 SUB.L:G src,dest */
prefix (1, 1, 0);
sc = decode_src23(sss, ss, 4);
dc = decode_dest23(ddd, dd, 4);
b = get_src (sc);
MATH_OP (dc, b, 0, -);
/** 1001 ddd0 dd01 0001 SUBX #IMM,dest */
prefix (0, 1, 0);
dc = decode_dest23(ddd, dd, 4);
imm = sign_ext (IMM(1), 8);
MATH_OP (dc, imm, 0, -);
/** 1sss ddd0 dd ss 0000 SUBX src,dest */
prefix (1, 1, 0);
sc = decode_src23(sss, ss, 1);
dc = decode_dest23(ddd, dd, 4);
b = sign_ext (get_src (sc), 8);
MATH_OP (dc, b, 0, -);
/** 1001 ddd w dd11 1110 TST.size:G #IMM,dest */
prefix (0, 0, 0);
dc = decode_dest23 (ddd, dd, w+1);
imm = IMM(w+1);
a = get_src (dc);
v = a & imm;
set_sz (v, w+1);
/** 00dd 110w TST.size:S #IMM,dest */
prefix (0, 0, 0);
dc = decode_dest2 (dd, w+1);
imm = IMM(w+1);
a = get_src (dc);
v = a & imm;
set_sz (v, w+1);
/** 0000 0001 1sss ddd w dd ss 1001 TST.size:G src,dest */
prefix (0, 0, 0);
sc = decode_src23 (sss, ss, w+1);
dc = decode_dest23 (ddd, dd, w+1);
b = get_src (sc);
a = get_src (dc);
v = a & b;
set_sz (v, w+1);
/** 1111 1111 UND */
trigger_fixed_interrupt (0xffffdc);
/** 1011 0010 0000 0011 WAIT */
;
/** 1101 ddd w dd00 1src XCHG.size src,dest */
dc = decode_dest23 (ddd, dd, w+1);
sc = decode_src3 (src, w+1);
a = get_src (dc);
b = get_src (sc);
put_dest (dc, b);
put_dest (sc, a);
/** 1001 ddd w dd00 1110 XOR.size #IMM,dest */
prefix (0, 1, 0);
dc = decode_dest23(ddd, dd, w+1);
imm = IMM(w+1);
LOGIC_OP (dc, imm, ^);
/** 1sss ddd w dd ss 1001 XOR.size src,dest */
prefix (1, 1, 0);
sc = decode_src23(sss, ss, w+1);
dc = decode_dest23(ddd, dd, w+1);
b = get_src (sc);
LOGIC_OP (dc, b, ^);
/** */
return step_result;
}
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