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1594 lines
33 KiB
C
1594 lines
33 KiB
C
/* r8c.opc --- semantics for r8c opcodes. -*- mode: c -*-
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Copyright (C) 2005-2017 Free Software Foundation, Inc.
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Contributed by Red Hat, Inc.
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This file is part of the GNU simulators.
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>. */
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#include <stdio.h>
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#include <stdlib.h>
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#include "cpu.h"
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#include "mem.h"
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#include "misc.h"
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#include "int.h"
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#define AU __attribute__((unused))
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#define tprintf if (trace) printf
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static unsigned char
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getbyte (void)
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{
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int tsave = trace;
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unsigned char b;
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if (trace == 1)
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trace = 0;
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b = mem_get_pc ();
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regs.r_pc ++;
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trace = tsave;
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return b;
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}
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#define M16C_ONLY() /* FIXME: add something here */
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#define GETBYTE() (op[opi++] = getbyte())
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#define UNSUPPORTED() unsupported("unsupported", orig_pc)
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#define NOTYET() unsupported("unimplemented", orig_pc)
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static void
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unsupported (char *tag, int orig_pc)
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{
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int i;
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printf("%s opcode at %08x\n", tag, orig_pc);
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regs.r_pc = orig_pc;
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for (i=0; i<2; i++)
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{
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int b = mem_get_pc();
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printf(" %s", bits(b>>4, 4));
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printf(" %s", bits(b, 4));
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regs.r_pc ++;
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}
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printf("\n");
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regs.r_pc = orig_pc;
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for (i=0; i<6; i++)
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{
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printf(" %02x", mem_get_pc ());
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regs.r_pc ++;
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}
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printf("\n");
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exit(1);
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}
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static int
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IMM (int bw)
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{
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int rv = getbyte ();
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if (bw)
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rv = rv + 256 * getbyte();
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if (bw == 2)
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rv = rv + 65536 * getbyte();
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return rv;
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}
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#define IMM4() (immm >= 8 ? 7 - immm : immm + 1)
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#define UNARY_SOP \
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dc = decode_srcdest4 (dest, w); \
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v = sign_ext (get_src (dc), w?16:8);
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#define UNARY_UOP \
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dc = decode_srcdest4 (dest, w); \
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v = get_src (dc);
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#define BINARY_SOP \
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sc = decode_srcdest4 (srcx, w); \
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dc = decode_srcdest4 (dest, w); \
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a = sign_ext (get_src (sc), w?16:8); \
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b = sign_ext (get_src (dc), w?16:8);
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#define BINARY_UOP \
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sc = decode_srcdest4 (srcx, w); \
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dc = decode_srcdest4 (dest, w); \
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a = get_src (sc); \
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b = get_src (dc);
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#define carry (FLAG_C ? 1 : 0)
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static void
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cmp (int d, int s, int w)
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{
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int a, b, f=0;
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int mask = w ? 0xffff : 0xff;
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a = d - s;
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b = sign_ext (d, w?16:8) - sign_ext (s, w?16:8);
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tprintf ("cmp: %x - %x = %08x, %x - %x = %d\n",
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d, s, a,
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sign_ext(d,w?16:8), sign_ext(s,w?16:8), b);
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if (b == 0)
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f |= FLAGBIT_Z;
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if (b & (w ? 0x8000 : 0x80))
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f |= FLAGBIT_S;
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if ((d & mask) >= (s & mask))
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f |= FLAGBIT_C;
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if (b < (w ? -32768 : -128) || b > (w ? 32767 : 127))
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f |= FLAGBIT_O;
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set_flags (FLAGBIT_Z | FLAGBIT_S | FLAGBIT_O | FLAGBIT_C, f);
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}
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static void
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div_op (int s, int u, int x, int w)
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{
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srcdest sc;
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int v, a, b;
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if (s == -1)
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s = IMM(w);
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else
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{
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sc = decode_srcdest4 (s, w);
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s = get_src (sc);
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}
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v = get_reg (w ? r2r0 : r0);
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if (!u)
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{
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s = sign_ext (s, w ? 16 : 8);
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v = sign_ext (v, w ? 16 : 8);
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}
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if (s == 0)
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{
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set_flags (FLAGBIT_O, FLAGBIT_O);
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return;
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}
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if (u)
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{
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a = (unsigned int)v / (unsigned int)s;
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b = (unsigned int)v % (unsigned int)s;
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}
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else
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{
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a = v / s;
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b = v % s;
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}
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if (x)
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{
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if ((s > 0 && b < 0)
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|| (s < 0 && b > 0))
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{
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a --;
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b += s;
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}
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}
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tprintf ("%d / %d = %d rem %d\n", v, s, a, b);
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if ((!u && (a > (w ? 32767 : 127)
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|| a < (w ? -32768 : -129)))
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|| (u && (a > (w ? 65536 : 255))))
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set_flags (FLAGBIT_O, FLAGBIT_O);
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else
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set_flags (FLAGBIT_O, 0);
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put_reg (w ? r0 : r0l, a);
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put_reg (w ? r2 : r0h, b);
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}
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static void
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rot_op (srcdest sd, int rotc, int count)
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{
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int mask = (sd.bytes == 2) ? 0xffff : 0xff;
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int msb = (sd.bytes == 2) ? 0x8000 : 0x80;
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int v = get_src (sd);
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int c = carry, ct;
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tprintf("%s %x by %d\n", rotc ? "rotc" : "rot", v, count);
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tprintf (": %s %d\n", bits(v, 8*sd.bytes), c);
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while (count > 0)
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{
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ct = (v & msb) ? 1 : 0;
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v <<= 1;
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v |= rotc ? c : ct;
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v &= mask;
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c = ct;
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tprintf (": %s %d\n", bits(v, 8*sd.bytes), c);
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count --;
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}
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while (count < 0)
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{
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ct = v & 1;
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v >>= 1;
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v |= (rotc ? c : ct) * msb;
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c = ct;
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tprintf (": %s %d\n", bits(v, 8*sd.bytes), c);
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count ++;
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}
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put_dest (sd, v);
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set_szc (v, sd.bytes, c);
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}
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static void
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shift_op (srcdest sd, int arith, int count)
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{
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int mask = (sd.bytes == 2) ? 0xffff : 0xff;
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int msb = (sd.bytes == 2) ? 0x8000 : 0x80;
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int v = get_src (sd);
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int c = 0;
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if (sd.bytes == 4)
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{
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mask = 0xffffffffU;
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msb = 0x80000000U;
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if (count > 16 || count < -16)
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{
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fprintf(stderr, "Error: SI shift of %d undefined\n", count);
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exit(1);
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}
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if (count > 16)
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count = (count - 1) % 16 + 1;
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if (count < -16)
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count = -((-count - 1) % 16 + 1);
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}
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tprintf("%s %x by %d\n", arith ? "sha" : "shl", v, count);
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tprintf (": %s %d\n", bits(v, 8*sd.bytes), c);
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while (count > 0)
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{
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c = (v & msb) ? 1 : 0;
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v <<= 1;
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v &= mask;
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tprintf (": %s %d\n", bits(v, 8*sd.bytes), c);
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count --;
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}
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while (count < 0)
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{
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c = v & 1;
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if (arith)
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v = (v & msb) | (v >> 1);
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else
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v = (v >> 1) & (msb - 1);
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tprintf (": %s %d\n", bits(v, 8*sd.bytes), c);
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count ++;
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}
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put_dest (sd, v);
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set_szc (v, sd.bytes, c);
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}
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#define MATH_OP(dc,s,c,op,carryrel) \
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a = get_src(dc); \
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b = s & b2mask[dc.bytes]; \
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v2 = a op b op c; \
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tprintf("0x%x " #op " 0x%x " #op " 0x%x = 0x%x\n", a, b, c, v2); \
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a = sign_ext (a, dc.bytes * 8); \
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b = sign_ext (s, dc.bytes * 8); \
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v = a op b op c; \
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tprintf("%d " #op " %d " #op " %d = %d\n", a, b, c, v); \
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set_oszc (v, dc.bytes, v2 carryrel); \
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put_dest (dc, v2);
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#define BIT_OP(field,expr) \
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dc = decode_bit (field); \
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b = get_bit (dc); \
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v = expr; \
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tprintf ("b=%d, carry=%d, %s = %d\n", b, carry, #expr, v); \
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put_bit (dc, v);
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#define BIT_OPC(field,expr) \
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dc = decode_bit (field); \
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b = get_bit (dc); \
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v = expr; \
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tprintf ("b=%d, carry=%d, %s = %d\n", b, carry, #expr, v); \
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set_c (v);
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/* The "BMcnd dest" opcode uses a different encoding for the */
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/* condition than other opcodes. */
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static int bmcnd_cond_map[] = {
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0, 1, 2, 3, 8, 9, 10, 11, 4, 5, 6, 7, 12, 13, 14, 15
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};
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int
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decode_r8c (void)
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{
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unsigned char op[40];
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int opi = 0;
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int v, v2, a, b;
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int orig_pc = get_reg (pc);
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srcdest sc, dc;
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int imm;
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step_result = M32C_MAKE_STEPPED ();
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tprintf("trace: decode pc = %05x\n", orig_pc);
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/** VARY dst 011 100 101 110 111 */
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/** 0111 011w 1111 dest ABS.size dest */
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UNARY_SOP;
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a = v<0 ? -v : v;
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tprintf("abs(%d) = %d\n", v, a);
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set_osz(a, w+1);
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put_dest (dc, a);
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/** 0111 011w 0110 dest ADC.size #IMM,dest */
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dc = decode_srcdest4(dest, w);
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imm = IMM(w);
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MATH_OP (dc, imm, carry, +, > (w?0xffff:0xff));
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/** 1011 000w srcx dest ADC.size src,dest */
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sc = decode_srcdest4(srcx, w);
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dc = decode_srcdest4(dest, w);
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b = get_src (sc);
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MATH_OP (dc, b, carry, +, > (w?0xffff:0xff));
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/** 0111 011w 1110 dest ADCF.size dest */
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dc = decode_srcdest4(dest, w);
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MATH_OP (dc, 0, carry, +, > (w?0xffff:0xff));
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/** 0111 011w 0100 dest ADD.size:G #imm,dest */
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dc = decode_srcdest4(dest, w);
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imm = IMM(w);
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MATH_OP (dc, imm, 0, +, > (w?0xffff:0xff));
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/** 1100 100w immm dest ADD.size:Q #IMM,dest */
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dc = decode_srcdest4(dest, w);
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imm = sign_ext (immm, 4);
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MATH_OP (dc, imm, 0, +, > (w?0xffff:0xff));
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/** 1000 0dst ADD.B:S #IMM8,dst */
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imm = IMM(0);
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dc = decode_dest3 (dst, 0);
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MATH_OP (dc, imm, 0, +, > 0xff);
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/** 1010 000w srcx dest ADD.size:G src,dest */
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sc = decode_srcdest4(srcx, w);
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dc = decode_srcdest4(dest, w);
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b = get_src (sc);
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MATH_OP (dc, b, 0, +, > (w?0xffff:0xff));
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/** 0010 0d sr ADD.B:S src,R0L/R0H */
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sc = decode_src2 (sr, 0, d);
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dc = decode_dest1 (d, 0);
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b = get_src (sc);
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MATH_OP (dc, b, 0, +, > 0xff);
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/** 0111 110w 1110 1011 ADD.size:G #IMM,sp */
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dc = reg_sd (sp);
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imm = sign_ext (IMM(w), w?16:8);
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MATH_OP (dc, imm, 0, +, > 0xffff);
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/** 0111 1101 1011 immm ADD.size:Q #IMM,sp */
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dc = reg_sd (sp);
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imm = sign_ext (immm, 4);
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MATH_OP (dc, imm, 0, +, > 0xffff);
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/** 1111 100w immm dest ADJNZ.size #IMM,dest,label */
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UNARY_UOP;
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imm = sign_ext(immm, 4);
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tprintf("%x + %d = %x\n", v, imm, v+imm);
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v += imm;
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put_dest (dc, v);
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a = sign_ext (IMM(0), 8);
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if ((v & (w ? 0xffff : 0xff)) != 0)
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{
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tprintf("jmp: %x + 2 + %d = ", get_reg (pc), a);
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put_reg (pc, orig_pc + 2 + a);
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tprintf("%x\n", get_reg (pc));
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}
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/** 0111 011w 0010 dest AND.size:G #IMM,dest */
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UNARY_UOP;
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imm = IMM(w);
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tprintf ("%x & %x = %x\n", v, imm, v & imm);
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v &= imm;
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set_sz (v, w+1);
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put_dest (dc, v);
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/** 1001 0dst AND.B:S #IMM8,dest */
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imm = IMM(0);
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dc = decode_dest3 (dst, 0);
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v = get_src (dc);
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tprintf("%x & %x = %x\n", v, imm, v & imm);
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v &= imm;
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set_sz (v, 1);
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put_dest (dc, v);
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/** 1001 000w srcx dest AND.size:G src.dest */
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BINARY_UOP;
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tprintf ("%x & %x = %x\n", a, b, a & b);
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v = a & b;
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set_sz (v, w+1);
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put_dest (dc, v);
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/** 0001 0d sr AND.B:S src,R0L/R0H */
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sc = decode_src2 (sr, 0, d);
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dc = decode_dest1 (d, 0);
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a = get_src (sc);
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b = get_src (dc);
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v = a & b;
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tprintf("%x & %x = %x\n", a, b, v);
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set_sz (v, 1);
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put_dest (dc, v);
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/** 0111 1110 0100 srcx BAND src */
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BIT_OPC (srcx, b & carry);
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/** 0111 1110 1000 dest BCLR:G dest */
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dc = decode_bit (dest);
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put_bit (dc, 0);
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/** 0100 0bit BCLR:S bit,base:11[SB] */
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dc = decode_bit11 (bit);
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put_bit (dc, 0);
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/** 0111 1110 0010 dest BMcnd dest */
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dc = decode_bit (dest);
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if (condition_true (bmcnd_cond_map [IMM (0) & 15]))
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put_bit (dc, 1);
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else
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put_bit (dc, 0);
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/** 0111 1101 1101 cond BMcnd C */
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if (condition_true (cond))
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set_c (1);
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else
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set_c (0);
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/** 0111 1110 0101 srcx BNAND src */
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BIT_OPC (srcx, (!b) & carry);
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/** 0111 1110 0111 srcx BNOR src */
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BIT_OPC (srcx, (!b) | carry);
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/** 0111 1110 1010 dest BNOT:G dest */
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BIT_OP (dest, !b);
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/** 0101 0bit BNOT:S bit,base:11[SB] */
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dc = decode_bit11 (bit);
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put_bit (dc, !get_bit (dc));
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/** 0111 1110 0011 srcx BNTST src */
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dc = decode_bit (srcx);
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b = get_bit (dc);
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set_zc (!b, !b);
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/** 0111 1110 1101 srcx BNXOR src */
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BIT_OPC (srcx, !b ^ carry);
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/** 0111 1110 0110 srcx BOR src */
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BIT_OPC (srcx, b | carry);
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/** 0000 0000 BRK */
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|
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/* We report the break to our caller with the PC still pointing at the
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breakpoint instruction. */
|
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put_reg (pc, orig_pc);
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if (verbose)
|
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printf("[break]\n");
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return M32C_MAKE_HIT_BREAK ();
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|
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/** 0111 1110 1001 dest BSET:G dest */
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|
|
dc = decode_bit (dest);
|
|
put_bit (dc, 1);
|
|
|
|
/** 0100 1bit BSET:S bit,base:11[SB] */
|
|
|
|
dc = decode_bit11 (bit);
|
|
put_bit (dc, 1);
|
|
|
|
/** 0111 1110 1011 srcx BTST:G src */
|
|
|
|
dc = decode_bit (srcx);
|
|
b = get_bit (dc);
|
|
set_zc (!b, b);
|
|
|
|
/** 0101 1bit BTST:S bit,base:11[SB] */
|
|
|
|
dc = decode_bit11 (bit);
|
|
b = get_bit (dc);
|
|
set_zc (!b, b);
|
|
|
|
/** 0111 1110 0000 dest BTSTC dest */
|
|
|
|
dc = decode_bit (dest);
|
|
b = get_bit (dc);
|
|
set_zc (!b, b);
|
|
put_bit (dc, 0);
|
|
|
|
/** 0111 1110 0001 dest BTSTS dest */
|
|
|
|
dc = decode_bit (dest);
|
|
b = get_bit (dc);
|
|
set_zc (!b, b);
|
|
put_bit (dc, 1);
|
|
|
|
/** 0111 1110 1100 srcx BXOR src */
|
|
|
|
BIT_OPC (srcx, b ^ carry);
|
|
|
|
/** 0111 011w 1000 dest CMP.size:G #IMM,dest */
|
|
|
|
UNARY_UOP;
|
|
imm = IMM(w);
|
|
cmp (v, imm, w);
|
|
|
|
/** 1101 000w immm dest CMP.size:Q #IMM,dest */
|
|
|
|
UNARY_UOP;
|
|
immm = sign_ext (immm, 4);
|
|
cmp (v, immm, w);
|
|
|
|
/** 1110 0dst CMP.B:S #IMM8,dest */
|
|
|
|
imm = IMM(0);
|
|
dc = decode_dest3 (dst, 0);
|
|
v = get_src (dc);
|
|
cmp (v, imm, 0);
|
|
|
|
/** 1100 000w srcx dest CMP.size:G src,dest */
|
|
|
|
BINARY_UOP;
|
|
cmp(b, a, w);
|
|
|
|
/** 0011 1d sr CMP.B:S src,R0L/R0H */
|
|
|
|
sc = decode_src2 (sr, 0, d);
|
|
dc = decode_dest1 (d, 0);
|
|
a = get_src (sc);
|
|
b = get_src (dc);
|
|
cmp (b, a, 0);
|
|
|
|
/** 0111 110w 1110 i1c s DADC,DADD,DSBB,DSUB */
|
|
|
|
/* w = width, i = immediate, c = carry, s = subtract */
|
|
|
|
int src = i ? IMM(w) : get_reg (w ? r1 : r0h);
|
|
int dest = get_reg (w ? r0 : r0l);
|
|
int res;
|
|
|
|
src = bcd2int(src, w);
|
|
dest = bcd2int(dest, w);
|
|
|
|
tprintf("decimal: %d %s %d", dest, s?"-":"+", src);
|
|
if (c)
|
|
tprintf(" c=%d", carry);
|
|
|
|
if (!s)
|
|
{
|
|
res = dest + src;
|
|
if (c)
|
|
res += carry;
|
|
c = res > (w ? 9999 : 99);
|
|
}
|
|
else
|
|
{
|
|
res = dest - src;
|
|
if (c)
|
|
res -= (1-carry);
|
|
c = res >= 0;
|
|
if (res < 0)
|
|
res += w ? 10000 : 100;
|
|
}
|
|
|
|
res = int2bcd (res, w);
|
|
tprintf(" = %x\n", res);
|
|
|
|
set_szc (res, w+1, c);
|
|
|
|
put_reg (w ? r0 : r0l, res);
|
|
|
|
/** 1010 1dst DEC.B dest */
|
|
|
|
dc = decode_dest3 (dst, 0);
|
|
v = get_src (dc);
|
|
tprintf("%x -- = %x\n", v, v-1);
|
|
v --;
|
|
set_sz (v, 1);
|
|
put_dest (dc, v);
|
|
|
|
/** 1111 d010 DEC.W dest */
|
|
|
|
v = get_reg (d ? a1 : a0);
|
|
tprintf("%x -- = %x\n", v, v-1);
|
|
v --;
|
|
set_sz (v, 2);
|
|
put_reg (d ? a1 : a0, v);
|
|
|
|
/** 0111 110w 1110 0001 DIV.size #IMM */
|
|
|
|
div_op (-1, 0, 0, w);
|
|
|
|
/** 0111 011w 1101 srcx DIV.size src */
|
|
|
|
div_op (srcx, 0, 0, w);
|
|
|
|
/** 0111 110w 1110 0000 DIVU.size #IMM */
|
|
|
|
div_op (-1, 1, 0, w);
|
|
|
|
/** 0111 011w 1100 srcx DIVU.size src */
|
|
|
|
div_op (srcx, 1, 0, w);
|
|
|
|
/** 0111 110w 1110 0011 DIVX.size #IMM */
|
|
|
|
div_op (-1, 0, 1, w);
|
|
|
|
/** 0111 011w 1001 srcx DIVX.size src */
|
|
|
|
div_op (srcx, 0, 1, w);
|
|
|
|
/** 0111 1100 1111 0010 ENTER #IMM8 */
|
|
|
|
imm = IMM(0);
|
|
put_reg (sp, get_reg (sp) - 2);
|
|
mem_put_hi (get_reg (sp), get_reg (fb));
|
|
put_reg (fb, get_reg (sp));
|
|
put_reg (sp, get_reg (sp) - imm);
|
|
|
|
/** 0111 1101 1111 0010 EXITD */
|
|
|
|
put_reg (sp, get_reg (fb));
|
|
put_reg (fb, mem_get_hi (get_reg (sp)));
|
|
put_reg (sp, get_reg (sp) + 2);
|
|
put_reg (pc, mem_get_psi (get_reg (sp)));
|
|
put_reg (sp, get_reg (sp) + 3);
|
|
|
|
/** 0111 1100 0110 dest EXTS.B dest */
|
|
|
|
dc = decode_srcdest4 (dest, 0);
|
|
v = sign_ext (get_src (dc), 8);
|
|
dc = widen_sd (dc);
|
|
put_dest (dc, v);
|
|
set_sz (v, 1);
|
|
|
|
/** 0111 1100 1111 0011 EXTS.W R0 */
|
|
|
|
v = sign_ext (get_reg (r0), 16);
|
|
put_reg (r2r0, v);
|
|
set_sz (v, 2);
|
|
|
|
/** 1110 1011 0flg 0101 FCLR dest */
|
|
|
|
set_flags (1 << flg, 0);
|
|
|
|
/** 1110 1011 0flg 0100 FSET dest */
|
|
|
|
set_flags (1 << flg, 1 << flg);
|
|
|
|
/** 1010 0dst INC.B dest */
|
|
|
|
dc = decode_dest3 (dst, 0);
|
|
v = get_src (dc);
|
|
tprintf("%x ++ = %x\n", v, v+1);
|
|
v ++;
|
|
set_sz (v, 1);
|
|
put_dest (dc, v);
|
|
|
|
/** 1011 d010 INC.W dest */
|
|
|
|
v = get_reg (d ? a1 : a0);
|
|
tprintf("%x ++ = %x\n", v, v+1);
|
|
v ++;
|
|
set_sz (v, 2);
|
|
put_reg (d ? a1 : a0, v);
|
|
|
|
/** 1110 1011 11vector INT #imm */
|
|
|
|
trigger_based_interrupt (vector);
|
|
|
|
/** 1111 0110 INTO */
|
|
|
|
if (FLAG_O)
|
|
trigger_fixed_interrupt (0xffe0);
|
|
|
|
/** 0110 1cnd Jcnd label */
|
|
|
|
v = sign_ext (IMM(0), 8);
|
|
if (condition_true (cnd))
|
|
put_reg (pc, orig_pc + 1 + v);
|
|
|
|
/** 0111 1101 1100 cond Jcnd label */
|
|
|
|
v = sign_ext (IMM(0), 8);
|
|
if (condition_true (cond))
|
|
put_reg (pc, orig_pc + 2 + v);
|
|
|
|
/** 0110 0dsp JMP.S label */
|
|
|
|
put_reg (pc, orig_pc + 2 + dsp);
|
|
|
|
/** 1111 1110 JMP.B label */
|
|
|
|
imm = sign_ext (IMM(0), 8);
|
|
if (imm == -1)
|
|
{
|
|
if (verbose)
|
|
printf("[jmp-to-self detected as exit]\n");
|
|
return M32C_MAKE_HIT_BREAK ();
|
|
}
|
|
put_reg (pc, orig_pc + 1 + imm);
|
|
|
|
/** 1111 0100 JMP.W label */
|
|
|
|
imm = sign_ext (IMM(1), 16);
|
|
put_reg (pc, orig_pc + 1 + imm);
|
|
|
|
/** 1111 1100 JMP.A label */
|
|
|
|
imm = IMM(2);
|
|
put_reg (pc, imm);
|
|
|
|
/** 0111 1101 0010 srcx JMPI.W src */
|
|
|
|
sc = decode_jumpdest (srcx, 1);
|
|
a = get_src (sc);
|
|
a = sign_ext (a, 16);
|
|
put_reg (pc, orig_pc + a);
|
|
|
|
/** 0111 1101 0000 srcx JMPI.A src */
|
|
|
|
sc = decode_jumpdest (srcx, 0);
|
|
a = get_src (sc);
|
|
put_reg (pc, a);
|
|
|
|
/** 1110 1110 JMPS #IMM8 */
|
|
|
|
M16C_ONLY();
|
|
|
|
imm = IMM(0);
|
|
a = 0xf0000 + mem_get_hi (0xffffe - imm * 2);
|
|
put_reg (pc, a);
|
|
|
|
/** 1111 0101 JSR.W label */
|
|
|
|
imm = sign_ext (IMM(1), 16);
|
|
put_reg (sp, get_reg (sp) - 3);
|
|
mem_put_psi (get_reg (sp), get_reg (pc));
|
|
put_reg (pc, orig_pc + imm + 1);
|
|
|
|
/** 1111 1101 JSR.A label */
|
|
|
|
imm = IMM(2);
|
|
put_reg (sp, get_reg (sp) - 3);
|
|
mem_put_psi (get_reg (sp), get_reg (pc));
|
|
put_reg (pc, imm);
|
|
|
|
/** 0111 1101 0011 srcx JSRI.W src */
|
|
|
|
sc = decode_jumpdest (srcx, 1);
|
|
a = get_src (sc);
|
|
a = sign_ext (a, 16);
|
|
|
|
put_reg (sp, get_reg (sp) - 3);
|
|
mem_put_psi (get_reg (sp), get_reg (pc));
|
|
put_reg (pc, orig_pc + a);
|
|
|
|
/** 0111 1101 0001 srcx JSRI.A src */
|
|
|
|
sc = decode_jumpdest (srcx, 0);
|
|
a = get_src (sc);
|
|
|
|
put_reg (sp, get_reg (sp) - 3);
|
|
mem_put_psi (get_reg (sp), get_reg (pc));
|
|
put_reg (pc, a);
|
|
|
|
/** 1110 1111 JSRS #IMM8 */
|
|
|
|
M16C_ONLY();
|
|
|
|
imm = IMM(0);
|
|
a = 0xf0000 + mem_get_hi (0xffffe - imm * 2);
|
|
|
|
put_reg (sp, get_reg (sp) - 3);
|
|
mem_put_psi (get_reg (sp), get_reg (pc));
|
|
put_reg (pc, a);
|
|
|
|
/** 1110 1011 0reg 0000 LDC #IMM16,dest */
|
|
|
|
dc = decode_cr (reg);
|
|
imm = IMM(1);
|
|
put_dest (dc, imm);
|
|
|
|
/** 0111 1010 1reg srcx LDC src,dest */
|
|
|
|
dc = decode_cr (reg);
|
|
sc = decode_srcdest4 (srcx,1);
|
|
put_dest (dc, get_src (sc));
|
|
|
|
/** 0111 1100 1111 0000 LDCTX abs16,abs20 */
|
|
|
|
NOTYET();
|
|
|
|
/** 0111 010w 1000 dest LDE.size abs20,dest */
|
|
|
|
dc = decode_srcdest4 (dest, w);
|
|
imm = IMM(2);
|
|
if (w)
|
|
v = mem_get_hi (imm);
|
|
else
|
|
v = mem_get_qi (imm);
|
|
put_dest (dc, v);
|
|
|
|
/** 0111 010w 1001 dest LDE.size dsp:20[a0], dest */
|
|
|
|
dc = decode_srcdest4 (dest, w);
|
|
imm = IMM(2) + get_reg (a0);
|
|
if (w)
|
|
v = mem_get_hi (imm);
|
|
else
|
|
v = mem_get_qi (imm);
|
|
put_dest (dc, v);
|
|
|
|
/** 0111 010w 1010 dest LDE.size [a1a0],dest */
|
|
|
|
dc = decode_srcdest4 (dest, w);
|
|
imm = get_reg (a1a0);
|
|
if (w)
|
|
v = mem_get_hi (imm);
|
|
else
|
|
v = mem_get_qi (imm);
|
|
put_dest (dc, v);
|
|
|
|
/** 0111 1101 1010 0imm LDIPL #IMM */
|
|
|
|
set_flags (0x700, imm*0x100);
|
|
|
|
/** 0111 010w 1100 dest MOV.size:G #IMM,dest */
|
|
|
|
dc = decode_srcdest4 (dest, w);
|
|
imm = IMM(w);
|
|
v = imm;
|
|
tprintf("%x = %x\n", v, v);
|
|
set_sz(v, w+1);
|
|
put_dest (dc, v);
|
|
|
|
/** 1101 100w immm dest MOV.size:Q #IMM,dest */
|
|
|
|
dc = decode_srcdest4 (dest, w);
|
|
v = sign_ext (immm, 4);
|
|
tprintf ("%x = %x\n", v, v);
|
|
set_sz (v, w+1);
|
|
put_dest (dc, v);
|
|
|
|
/** 1100 0dst MOV.B:S #IMM8,dest */
|
|
|
|
imm = IMM(0);
|
|
dc = decode_dest3 (dst, 0);
|
|
v = imm;
|
|
tprintf("%x = %x\n", v, v);
|
|
set_sz (v, 1);
|
|
put_dest (dc, v);
|
|
|
|
/** 1w10 d010 MOV.size:S #IMM,dest */
|
|
|
|
/* Note that for w, 0=W and 1=B unlike the usual meaning. */
|
|
v = IMM(1-w);
|
|
tprintf("%x = %x\n", v, v);
|
|
set_sz (v, 2-w);
|
|
put_reg (d ? a1 : a0, v);
|
|
|
|
/** 1011 0dst MOV.B:Z #0,dest */
|
|
|
|
dc = decode_dest3 (dst, 0);
|
|
v = 0;
|
|
set_sz (v, 1);
|
|
put_dest (dc, v);
|
|
|
|
/** 0111 001w srcx dest MOV.size:G src,dest */
|
|
|
|
sc = decode_srcdest4 (srcx, w);
|
|
dc = decode_srcdest4 (dest, w);
|
|
v = get_src (sc);
|
|
set_sz (v, w+1);
|
|
put_dest (dc, v);
|
|
|
|
/** 0011 0d sr MOV.B:S src,dest */
|
|
|
|
sc = decode_src2 (sr, 0, d);
|
|
v = get_src (sc);
|
|
set_sz (v, 1);
|
|
put_reg (d ? a1 : a0, v);
|
|
|
|
/** 0000 0s ds MOV.B:S R0L/R0H,dest */
|
|
|
|
if (ds == 0)
|
|
UNSUPPORTED();
|
|
dc = decode_src2 (ds, 0, s);
|
|
v = get_reg (s ? r0h : r0l);
|
|
set_sz (v, 1);
|
|
put_dest (dc, v);
|
|
|
|
/** 0000 1d sr MOV.B:S src,R0L/R0H */
|
|
|
|
sc = decode_src2 (sr, 0, d);
|
|
v = get_src (sc);
|
|
set_sz (v, 1);
|
|
put_reg (d ? r0h : r0l, v);
|
|
|
|
/** 0111 010w 1011 dest MOV.size:G dsp:8[SP], dest */
|
|
|
|
dc = decode_srcdest4 (dest, w);
|
|
imm = IMM(0);
|
|
a = get_reg (sp) + sign_ext (imm, 8);
|
|
a &= addr_mask;
|
|
if (w)
|
|
v = mem_get_hi (a);
|
|
else
|
|
v = mem_get_qi (a);
|
|
set_sz (v, w+1);
|
|
put_dest (dc, v);
|
|
|
|
/** 0111 010w 0011 srcx MOV.size:G src, disp8[SP] */
|
|
|
|
sc = decode_srcdest4 (srcx, w);
|
|
imm = IMM(0);
|
|
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);
|
|
|
|
/** 1110 1011 0reg 1src MOVA src,dest */
|
|
|
|
static reg_id map[] = { r0, r1, r2, r3, a0, a1, 0, 0 };
|
|
sc = decode_srcdest4 (8 + src, 0);
|
|
put_reg (map[reg], sc.u.addr);
|
|
|
|
/** 0111 1100 10hl dest MOVdir R0L,dest */
|
|
|
|
if (dest == 0 || dest == 4 || dest == 5)
|
|
UNSUPPORTED();
|
|
dc = decode_srcdest4 (dest, 0);
|
|
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);
|
|
|
|
/** 0111 1100 00hl srcx MOVdir src,R0L */
|
|
|
|
if (srcx == 0 || srcx == 4 || srcx == 5)
|
|
UNSUPPORTED();
|
|
sc = decode_srcdest4 (srcx, 0);
|
|
a = get_reg (r0l);
|
|
b = get_src (sc);
|
|
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);
|
|
|
|
/** 0111 110w 0101 dest MUL.size #IMM,dest */
|
|
|
|
UNARY_SOP;
|
|
imm = sign_ext (IMM(w), w?16:8);
|
|
tprintf("%d * %d = %d\n", v, imm, v*imm);
|
|
v *= imm;
|
|
dc = widen_sd (dc);
|
|
put_dest (dc, v);
|
|
|
|
/** 0111 100w srcx dest MUL.size src,dest */
|
|
|
|
BINARY_SOP;
|
|
v = a * b;
|
|
tprintf("%d * %d = %d\n", a, b, v);
|
|
dc = widen_sd (dc);
|
|
put_dest (dc, v);
|
|
|
|
/** 0111 110w 0100 dest MULU.size #IMM,dest */
|
|
|
|
UNARY_UOP;
|
|
imm = IMM(w);
|
|
tprintf("%u * %u = %u\n", v, imm, v*imm);
|
|
v *= imm;
|
|
dc = widen_sd (dc);
|
|
put_dest (dc, v);
|
|
|
|
/** 0111 000w srcx dest MULU.size src,dest */
|
|
|
|
BINARY_UOP;
|
|
v = a * b;
|
|
tprintf("%u * %u = %u\n", a, b, v);
|
|
dc = widen_sd (dc);
|
|
put_dest (dc, v);
|
|
|
|
/** 0111 010w 0101 dest NEG.size dest */
|
|
|
|
UNARY_SOP;
|
|
tprintf("%d * -1 = %d\n", v, -v);
|
|
v = -v;
|
|
set_oszc (v, w+1, v == 0);
|
|
put_dest (dc, v);
|
|
|
|
/** 0000 0100 NOP */
|
|
|
|
tprintf("nop\n");
|
|
|
|
/** 0111 010w 0111 dest NOT.size:G */
|
|
|
|
UNARY_UOP;
|
|
tprintf("~ %x = %x\n", v, ~v);
|
|
v = ~v;
|
|
set_sz (v, w+1);
|
|
put_dest (dc, v);
|
|
|
|
/** 1011 1dst NOT.B:S dest */
|
|
|
|
dc = decode_dest3 (dst, 0);
|
|
v = get_src (dc);
|
|
tprintf("~ %x = %x\n", v, ~v);
|
|
v = ~v;
|
|
set_sz (v, 1);
|
|
put_dest (dc, v);
|
|
|
|
/** 0111 011w 0011 dest OR.size:G #IMM,dest */
|
|
|
|
UNARY_UOP;
|
|
imm = IMM(w);
|
|
tprintf ("%x | %x = %x\n", v, imm, v | imm);
|
|
v |= imm;
|
|
set_sz (v, w+1);
|
|
put_dest (dc, v);
|
|
|
|
/** 1001 1dst OR.B:S #IMM8,dest */
|
|
|
|
imm = IMM(0);
|
|
dc = decode_dest3 (dst, 0);
|
|
v = get_src (dc);
|
|
tprintf("%x | %x = %x\n", v, imm, v|imm);
|
|
v |= imm;
|
|
set_sz (v, 1);
|
|
put_dest (dc, v);
|
|
|
|
/** 1001 100w srcx dest OR.size:G src,dest */
|
|
|
|
BINARY_UOP;
|
|
tprintf ("%x | %x = %x\n", a, b, a | b);
|
|
v = a | b;
|
|
set_sz (v, w+1);
|
|
put_dest (dc, v);
|
|
|
|
/** 0001 1d sr OR.B:S src,R0L/R0H */
|
|
|
|
sc = decode_src2 (sr, 0, d);
|
|
dc = decode_dest1 (d, 0);
|
|
a = get_src (sc);
|
|
b = get_src (dc);
|
|
v = a | b;
|
|
tprintf("%x | %x = %x\n", a, b, v);
|
|
set_sz (v, 1);
|
|
put_dest (dc, v);
|
|
|
|
/** 0111 010w 1101 dest POP.size:G dest */
|
|
|
|
dc = decode_srcdest4 (dest, w);
|
|
if (w)
|
|
{
|
|
v = mem_get_hi (get_reg (sp));
|
|
put_reg (sp, get_reg (sp) + 2);
|
|
tprintf("pophi: %x\n", v);
|
|
}
|
|
else
|
|
{
|
|
v = mem_get_qi (get_reg (sp));
|
|
put_reg (sp, get_reg (sp) + 1);
|
|
tprintf("popqi: %x\n", v);
|
|
}
|
|
put_dest (dc, v);
|
|
|
|
/** 1001 d010 POP.B:S dest */
|
|
|
|
v = mem_get_qi (get_reg (sp));
|
|
put_reg (d ? r0h : r0l, v);
|
|
put_reg (sp, get_reg (sp) + 1);
|
|
tprintf("popqi: %x\n", v);
|
|
|
|
/** 1101 d010 POP.W:S dest */
|
|
|
|
v = mem_get_hi (get_reg (sp));
|
|
put_reg (d ? a1 : a0, v);
|
|
put_reg (sp, get_reg (sp) + 2);
|
|
tprintf("pophi: %x\n", v);
|
|
|
|
/** 1110 1011 0reg 0011 POPC dest */
|
|
|
|
dc = decode_cr (reg);
|
|
v = mem_get_hi (get_reg (sp));
|
|
put_dest (dc, v);
|
|
put_reg (sp, get_reg (sp) + 2);
|
|
tprintf("popc: %x\n", v);
|
|
|
|
/** 1110 1101 POPM dest */
|
|
|
|
static int map[] = { r0, r1, r2, r3, a0, a1, sb, fb };
|
|
imm = IMM(0);
|
|
tprintf("popm: %x\n", imm);
|
|
for (a=0; a<8; a++)
|
|
if (imm & (1<<a))
|
|
{
|
|
v = mem_get_hi (get_reg (sp));
|
|
put_reg (map[a], v);
|
|
put_reg (sp, get_reg (sp) + 2);
|
|
}
|
|
|
|
/** 0111 110w 1110 0010 PUSH.size:G #IMM */
|
|
|
|
imm = IMM(w);
|
|
if (w)
|
|
{
|
|
put_reg (sp, get_reg (sp) - 2);
|
|
mem_put_hi (get_reg (sp), imm);
|
|
tprintf("pushhi %04x\n", imm);
|
|
}
|
|
else
|
|
{
|
|
put_reg (sp, get_reg (sp) - 1);
|
|
mem_put_qi (get_reg (sp), imm);
|
|
tprintf("pushqi %02x\n", imm);
|
|
}
|
|
|
|
/** 0111 010w 0100 srcx PUSH.size:G src */
|
|
|
|
sc = decode_srcdest4 (srcx, w);
|
|
v = get_src (sc);
|
|
if (w)
|
|
{
|
|
put_reg (sp, get_reg (sp) - 2);
|
|
mem_put_hi (get_reg (sp), v);
|
|
tprintf("pushhi: %x\n", v);
|
|
}
|
|
else
|
|
{
|
|
put_reg (sp, get_reg (sp) - 1);
|
|
mem_put_qi (get_reg (sp), v);
|
|
tprintf("pushqi: %x\n", v);
|
|
}
|
|
|
|
/** 1000 s010 PUSH.B:S src */
|
|
|
|
v = get_reg (s ? r0h : r0l);
|
|
put_reg (sp, get_reg (sp) - 1);
|
|
mem_put_qi (get_reg (sp), v);
|
|
tprintf("pushqi: %x\n", v);
|
|
|
|
/** 1100 s010 PUSH.W:S src */
|
|
|
|
v = get_reg (s ? a1 : a0);
|
|
put_reg (sp, get_reg (sp) - 2);
|
|
mem_put_hi (get_reg (sp), v);
|
|
tprintf("pushhi: %x\n", v);
|
|
|
|
/** 0111 1101 1001 srcx PUSHA src */
|
|
|
|
sc = decode_srcdest4 (srcx, 0);
|
|
put_reg (sp, get_reg (sp) - 2);
|
|
mem_put_hi (get_reg (sp), sc.u.addr);
|
|
tprintf("pushhi: %x\n", sc.u.addr);
|
|
|
|
/** 1110 1011 0src 0010 PUSHC src */
|
|
|
|
sc = decode_cr (src);
|
|
put_reg (sp, get_reg (sp) - 2);
|
|
v = get_src (sc);
|
|
mem_put_hi (get_reg (sp), v);
|
|
tprintf("pushc: %x\n", v);
|
|
|
|
/** 1110 1100 PUSHM src */
|
|
|
|
static int map[] = { fb, sb, a1, a0, r3, r2, r1, r0 };
|
|
imm = IMM(0);
|
|
tprintf("pushm: %x\n", imm);
|
|
for (a=0; 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);
|
|
}
|
|
|
|
/** 1111 1011 REIT */
|
|
|
|
a = get_reg (sp);
|
|
v = (mem_get_hi (a)
|
|
+ 4096 * (mem_get_qi (a+3) & 0xf0));
|
|
b = (mem_get_qi (a+2)
|
|
+ 256 * (mem_get_qi (a+3) & 0xff));
|
|
put_reg (pc, v);
|
|
put_reg (flags, b);
|
|
put_reg (sp, get_reg (sp) + 4);
|
|
|
|
/** 0111 110w 1111 0001 RMPA.size */
|
|
|
|
int count = get_reg (r3);
|
|
int list1 = get_reg (a0);
|
|
int list2 = get_reg (a1);
|
|
int sum = get_reg (w ? r2r0 : r0);
|
|
|
|
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("%d + %d * %d = ", sum, a, b);
|
|
sum += a * b;
|
|
tprintf("%d\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 (w ? r2r0 : r0, sum);
|
|
|
|
/** 0111 011w 1010 dest ROLC.size dest */
|
|
|
|
dc = decode_srcdest4 (dest, w);
|
|
rot_op (dc, 1, 1);
|
|
|
|
/** 0111 011w 1011 dest RORC.size dest */
|
|
|
|
dc = decode_srcdest4 (dest, w);
|
|
rot_op (dc, 1, -1);
|
|
|
|
/** 1110 000w immm dest ROT.size #IMM,dest */
|
|
|
|
dc = decode_srcdest4 (dest, w);
|
|
rot_op (dc, 0, IMM4());
|
|
|
|
/** 0111 010w 0110 dest ROT.size R1H,dest */
|
|
|
|
dc = decode_srcdest4 (dest, w);
|
|
rot_op (dc, 0, sign_ext (get_reg (r1h), 8));
|
|
|
|
/** 1111 0011 RTS */
|
|
|
|
put_reg (pc, mem_get_psi (get_reg (sp)));
|
|
put_reg (sp, get_reg (sp) + 3);
|
|
|
|
/** 0111 011w 0111 dest SBB.size #IMM,dest */
|
|
|
|
dc = decode_srcdest4 (dest, w);
|
|
imm = IMM(w);
|
|
MATH_OP (dc, imm, !carry, -, >= 0);
|
|
|
|
/** 1011 100w srcx dest SBB.size src,dest */
|
|
|
|
sc = decode_srcdest4(srcx, w);
|
|
dc = decode_srcdest4(dest, w);
|
|
b = get_src (sc);
|
|
MATH_OP (dc, b, !carry, -, >= 0);
|
|
|
|
/** 1111 000w immm dest SHA.size #IMM, dest */
|
|
|
|
dc = decode_srcdest4(dest, w);
|
|
shift_op (dc, 1, IMM4());
|
|
|
|
/** 0111 010w 1111 dest SHA.size R1H,dest */
|
|
|
|
dc = decode_srcdest4(dest, w);
|
|
a = sign_ext (get_reg (r1h), 8);
|
|
shift_op (dc, 1, a);
|
|
|
|
/** 1110 1011 101d immm SHA.L #IMM, dest */
|
|
|
|
dc = reg_sd (d ? r3r1 : r2r0);
|
|
shift_op (dc, 1, IMM4());
|
|
|
|
/** 1110 1011 001d 0001 SHA.L R1H,dest */
|
|
|
|
dc = reg_sd (d ? r3r1 : r2r0);
|
|
a = sign_ext (get_reg (r1h), 8);
|
|
shift_op (dc, 1, a);
|
|
|
|
/** 1110 100w immm dest SHL.size #IMM, dest */
|
|
|
|
dc = decode_srcdest4(dest, w);
|
|
shift_op (dc, 0, IMM4());
|
|
|
|
/** 0111 010w 1110 dest SHL.size R1H,dest */
|
|
|
|
dc = decode_srcdest4(dest, w);
|
|
a = sign_ext (get_reg (r1h), 8);
|
|
shift_op (dc, 0, a);
|
|
|
|
/** 1110 1011 100d immm SHL.L #IMM,dest */
|
|
|
|
dc = reg_sd (d ? r3r1 : r2r0);
|
|
shift_op (dc, 0, IMM4());
|
|
|
|
/** 1110 1011 000d 0001 SHL.L R1H,dest */
|
|
|
|
dc = reg_sd (d ? r3r1 : r2r0);
|
|
a = sign_ext (get_reg (r1h), 8);
|
|
shift_op (dc, 0, a);
|
|
|
|
/** 0111 110w 1110 100b SMOVB.size */
|
|
|
|
int count = get_reg (r3);
|
|
int s1 = get_reg (a0) + (get_reg (r1h) << 16);
|
|
int s2 = get_reg (a1);
|
|
int inc = (w ? 2 : 1) * (b ? -1 : 1);
|
|
|
|
while (count)
|
|
{
|
|
if (w)
|
|
{
|
|
v = mem_get_hi (s1);
|
|
mem_put_hi (s2, v);
|
|
}
|
|
else
|
|
{
|
|
v = mem_get_qi (s1);
|
|
mem_put_qi (s2, v);
|
|
}
|
|
s1 += inc;
|
|
s2 += inc;
|
|
count --;
|
|
}
|
|
put_reg (r3, count);
|
|
put_reg (a0, s1 & 0xffff);
|
|
put_reg (a1, s2);
|
|
put_reg (r1h, s1 >> 16);
|
|
|
|
/** 0111 110w 1110 1010 SSTR.size */
|
|
|
|
int count = get_reg (r3);
|
|
int s1 = get_reg (a1);
|
|
v = get_reg (w ? r0 : r0l);
|
|
|
|
while (count)
|
|
{
|
|
if (w)
|
|
{
|
|
mem_put_hi (s1, v);
|
|
s1 += 2;
|
|
}
|
|
else
|
|
{
|
|
mem_put_qi (s1, v);
|
|
s1 += 1;
|
|
}
|
|
count --;
|
|
}
|
|
put_reg (r3, count);
|
|
put_reg (a1, s1);
|
|
|
|
/** 0111 1011 1src dest STC src,dest */
|
|
|
|
dc = decode_srcdest4 (dest, 1);
|
|
sc = decode_cr (src);
|
|
put_dest (dc, get_src(sc));
|
|
|
|
/** 0111 1100 1100 dest STC PC,dest */
|
|
|
|
dc = decode_srcdest4 (dest, 1);
|
|
dc.bytes = 3;
|
|
put_dest (dc, orig_pc);
|
|
|
|
/** 0111 1101 1111 0000 STCTX abs16,abs20 */
|
|
|
|
NOTYET();
|
|
|
|
/** 0111 010w 0000 srcx STE.size src,abs20 */
|
|
|
|
sc = decode_srcdest4 (srcx, w);
|
|
a = IMM(2);
|
|
v = get_src (sc);
|
|
if (w)
|
|
mem_put_hi (a, v);
|
|
else
|
|
mem_put_qi (a, v);
|
|
if (srcx == 4 || srcx == 5)
|
|
{
|
|
v = get_reg (sc.u.reg);
|
|
set_sz (v, 2);
|
|
}
|
|
else
|
|
set_sz (v, w+1);
|
|
|
|
/** 0111 010w 0001 srcx STE.size src,disp20[a0] */
|
|
|
|
sc = decode_srcdest4 (srcx, w);
|
|
a = get_reg(a0) + IMM(2);
|
|
v = get_src (sc);
|
|
if (w)
|
|
mem_put_hi (a, v);
|
|
else
|
|
mem_put_qi (a, v);
|
|
if (srcx == 4 || srcx == 5)
|
|
{
|
|
v = get_reg (sc.u.reg);
|
|
set_sz (v, 2);
|
|
}
|
|
else
|
|
set_sz (v, w+1);
|
|
|
|
/** 0111 010w 0010 srcx STE.size src,[a1a0] */
|
|
|
|
sc = decode_srcdest4 (srcx, w);
|
|
a = get_reg(a1a0);
|
|
v = get_src (sc);
|
|
if (w)
|
|
mem_put_hi (a, v);
|
|
else
|
|
mem_put_qi (a, v);
|
|
if (srcx == 4 || srcx == 5)
|
|
{
|
|
v = get_reg (sc.u.reg);
|
|
set_sz (v, 2);
|
|
}
|
|
else
|
|
set_sz (v, w+1);
|
|
|
|
/** 1101 0dst STNZ #IMM8,dest */
|
|
|
|
imm = IMM(0);
|
|
dc = decode_dest3(dst, 0);
|
|
if (!FLAG_Z)
|
|
put_dest (dc, imm);
|
|
|
|
/** 1100 1dst STZ #IMM8,dest */
|
|
|
|
imm = IMM(0);
|
|
dc = decode_dest3(dst, 0);
|
|
if (FLAG_Z)
|
|
put_dest (dc, imm);
|
|
|
|
/** 1101 1dst STZX #IMM81,#IMM82,dest */
|
|
|
|
a = IMM(0);
|
|
dc = decode_dest3(dst, 0);
|
|
b = IMM(0);
|
|
if (FLAG_Z)
|
|
put_dest (dc, a);
|
|
else
|
|
put_dest (dc, b);
|
|
|
|
/** 0111 011w 0101 dest SUB.size:G #IMM,dest */
|
|
|
|
dc = decode_srcdest4 (dest, w);
|
|
imm = IMM(w);
|
|
MATH_OP (dc, imm, 0, -, >= 0);
|
|
|
|
/** 1000 1dst SUB.B:S #IMM8,dest */
|
|
|
|
imm = IMM(0);
|
|
dc = decode_dest3 (dst, 0);
|
|
MATH_OP (dc, imm, 0, -, >= 0);
|
|
|
|
/** 1010 100w srcx dest SUB.size:G src,dest */
|
|
|
|
sc = decode_srcdest4(srcx, w);
|
|
dc = decode_srcdest4(dest, w);
|
|
b = get_src (sc);
|
|
MATH_OP (dc, b, 0, -, >= 0);
|
|
|
|
/** 0010 1d sr SUB.B:S src,R0L/R0H */
|
|
|
|
sc = decode_src2 (sr, 0, d);
|
|
dc = decode_dest1 (d, 0);
|
|
b = get_src (sc);
|
|
MATH_OP (dc, b, 0, -, >= 0);
|
|
|
|
/** 0111 011w 0000 dest TST.size #IMM, dest */
|
|
|
|
UNARY_UOP;
|
|
imm = IMM(w);
|
|
tprintf ("%x & %x = %x\n", v, imm, v & imm);
|
|
v &= imm;
|
|
set_sz (v, w+1);
|
|
|
|
/** 1000 000w srcx dest TST.size src,dest */
|
|
|
|
BINARY_UOP;
|
|
tprintf ("%x & %x = %x\n", a, b, a & b);
|
|
v = a & b;
|
|
set_sz (v, w+1);
|
|
|
|
/** 1111 1111 UND */
|
|
|
|
trigger_fixed_interrupt (0xffdc);
|
|
|
|
/** 0111 1101 1111 0011 WAIT */
|
|
|
|
tprintf("waiting...\n");
|
|
|
|
/** 0111 101w 00sr dest XCHG.size src,dest */
|
|
|
|
sc = decode_srcdest4 (sr, w);
|
|
dc = decode_srcdest4 (dest, w);
|
|
a = get_src (sc);
|
|
b = get_src (dc);
|
|
put_dest (dc, a);
|
|
put_dest (sc, b);
|
|
|
|
/** 0111 011w 0001 dest XOR.size #IMM,dest */
|
|
|
|
UNARY_UOP;
|
|
imm = IMM(w);
|
|
tprintf ("%x ^ %x = %x\n", v, imm, v ^ imm);
|
|
v ^= imm;
|
|
set_sz (v, w+1);
|
|
put_dest (dc, v);
|
|
|
|
/** 1000 100w srcx dest XOR.size src,dest */
|
|
|
|
BINARY_UOP;
|
|
tprintf ("%x ^ %x = %x\n", a, b, a ^ b);
|
|
v = a ^ b;
|
|
set_sz (v, w+1);
|
|
put_dest (dc, v);
|
|
|
|
/** OP */
|
|
/** */
|
|
|
|
return step_result;
|
|
}
|