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1005 lines
27 KiB
C
1005 lines
27 KiB
C
/* -*- c -*- */
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/* Copyright 2012 Free Software Foundation, Inc.
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Contributed by Red Hat.
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Written by DJ Delorie.
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This file is part of the GNU opcodes library.
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This library 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, or (at your option)
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any later version.
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It is distributed in the hope that it will be useful, but WITHOUT
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ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
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or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public
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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, write to the Free Software
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Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
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MA 02110-1301, USA. */
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#include "sysdep.h"
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include "ansidecl.h"
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#include "opcode/rx.h"
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#define RX_OPCODE_BIG_ENDIAN 0
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typedef struct
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{
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RX_Opcode_Decoded * rx;
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int (* getbyte)(void *);
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void * ptr;
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unsigned char * op;
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} LocalData;
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static int trace = 0;
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#define BSIZE 0
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#define WSIZE 1
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#define LSIZE 2
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/* These are for when the upper bits are "don't care" or "undefined". */
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static int bwl[] =
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{
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RX_Byte,
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RX_Word,
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RX_Long
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};
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static int sbwl[] =
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{
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RX_SByte,
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RX_SWord,
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RX_Long
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};
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static int ubwl[] =
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{
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RX_UByte,
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RX_UWord,
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RX_Long
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};
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static int memex[] =
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{
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RX_SByte,
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RX_SWord,
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RX_Long,
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RX_UWord
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};
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#define ID(x) rx->id = RXO_##x
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#define OP(n,t,r,a) (rx->op[n].type = t, \
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rx->op[n].reg = r, \
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rx->op[n].addend = a )
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#define OPs(n,t,r,a,s) (OP (n,t,r,a), \
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rx->op[n].size = s )
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/* This is for the BWL and BW bitfields. */
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static int SCALE[] = { 1, 2, 4 };
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/* This is for the prefix size enum. */
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static int PSCALE[] = { 4, 1, 1, 1, 2, 2, 2, 3, 4 };
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static int flagmap[] = {0, 1, 2, 3, 0, 0, 0, 0,
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16, 17, 0, 0, 0, 0, 0, 0 };
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static int dsp3map[] = { 8, 9, 10, 3, 4, 5, 6, 7 };
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/*
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*C a constant (immediate) c
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*R A register
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*I Register indirect, no offset
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*Is Register indirect, with offset
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*D standard displacement: type (r,[r],dsp8,dsp16 code), register, BWL code
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*P standard displacement: type (r,[r]), reg, assumes UByte
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*Pm memex displacement: type (r,[r]), reg, memex code
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*cc condition code. */
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#define DC(c) OP (0, RX_Operand_Immediate, 0, c)
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#define DR(r) OP (0, RX_Operand_Register, r, 0)
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#define DI(r,a) OP (0, RX_Operand_Indirect, r, a)
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#define DIs(r,a,s) OP (0, RX_Operand_Indirect, r, (a) * SCALE[s])
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#define DD(t,r,s) rx_disp (0, t, r, bwl[s], ld);
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#define DF(r) OP (0, RX_Operand_Flag, flagmap[r], 0)
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#define SC(i) OP (1, RX_Operand_Immediate, 0, i)
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#define SR(r) OP (1, RX_Operand_Register, r, 0)
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#define SRR(r) OP (1, RX_Operand_TwoReg, r, 0)
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#define SI(r,a) OP (1, RX_Operand_Indirect, r, a)
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#define SIs(r,a,s) OP (1, RX_Operand_Indirect, r, (a) * SCALE[s])
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#define SD(t,r,s) rx_disp (1, t, r, bwl[s], ld);
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#define SP(t,r) rx_disp (1, t, r, (t!=3) ? RX_UByte : RX_Long, ld); P(t, 1);
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#define SPm(t,r,m) rx_disp (1, t, r, memex[m], ld); rx->op[1].size = memex[m];
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#define Scc(cc) OP (1, RX_Operand_Condition, cc, 0)
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#define S2C(i) OP (2, RX_Operand_Immediate, 0, i)
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#define S2R(r) OP (2, RX_Operand_Register, r, 0)
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#define S2I(r,a) OP (2, RX_Operand_Indirect, r, a)
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#define S2Is(r,a,s) OP (2, RX_Operand_Indirect, r, (a) * SCALE[s])
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#define S2D(t,r,s) rx_disp (2, t, r, bwl[s], ld);
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#define S2P(t,r) rx_disp (2, t, r, (t!=3) ? RX_UByte : RX_Long, ld); P(t, 2);
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#define S2Pm(t,r,m) rx_disp (2, t, r, memex[m], ld); rx->op[2].size = memex[m];
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#define S2cc(cc) OP (2, RX_Operand_Condition, cc, 0)
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#define BWL(sz) rx->op[0].size = rx->op[1].size = rx->op[2].size = rx->size = bwl[sz]
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#define sBWL(sz) rx->op[0].size = rx->op[1].size = rx->op[2].size = rx->size = sbwl[sz]
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#define uBWL(sz) rx->op[0].size = rx->op[1].size = rx->op[2].size = rx->size = ubwl[sz]
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#define P(t, n) rx->op[n].size = (t!=3) ? RX_UByte : RX_Long;
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#define F(f) store_flags(rx, f)
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#define AU ATTRIBUTE_UNUSED
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#define GETBYTE() (ld->op [ld->rx->n_bytes++] = ld->getbyte (ld->ptr))
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#define SYNTAX(x) rx->syntax = x
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#define UNSUPPORTED() \
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rx->syntax = "*unknown*"
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#define IMM(sf) immediate (sf, 0, ld)
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#define IMMex(sf) immediate (sf, 1, ld)
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static int
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immediate (int sfield, int ex, LocalData * ld)
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{
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unsigned long i = 0, j;
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switch (sfield)
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{
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#define B ((unsigned long) GETBYTE())
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case 0:
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#if RX_OPCODE_BIG_ENDIAN
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i = B;
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if (ex && (i & 0x80))
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i -= 0x100;
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i <<= 24;
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i |= B << 16;
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i |= B << 8;
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i |= B;
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#else
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i = B;
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i |= B << 8;
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i |= B << 16;
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j = B;
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if (ex && (j & 0x80))
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j -= 0x100;
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i |= j << 24;
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#endif
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break;
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case 3:
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#if RX_OPCODE_BIG_ENDIAN
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i = B << 16;
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i |= B << 8;
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i |= B;
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#else
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i = B;
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i |= B << 8;
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i |= B << 16;
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#endif
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if (ex && (i & 0x800000))
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i -= 0x1000000;
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break;
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case 2:
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#if RX_OPCODE_BIG_ENDIAN
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i |= B << 8;
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i |= B;
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#else
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i |= B;
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i |= B << 8;
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#endif
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if (ex && (i & 0x8000))
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i -= 0x10000;
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break;
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case 1:
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i |= B;
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if (ex && (i & 0x80))
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i -= 0x100;
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break;
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default:
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abort();
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}
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return i;
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}
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static void
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rx_disp (int n, int type, int reg, int size, LocalData * ld)
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{
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int disp;
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ld->rx->op[n].reg = reg;
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switch (type)
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{
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case 3:
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ld->rx->op[n].type = RX_Operand_Register;
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break;
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case 0:
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ld->rx->op[n].type = RX_Operand_Indirect;
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ld->rx->op[n].addend = 0;
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break;
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case 1:
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ld->rx->op[n].type = RX_Operand_Indirect;
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disp = GETBYTE ();
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ld->rx->op[n].addend = disp * PSCALE[size];
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break;
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case 2:
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ld->rx->op[n].type = RX_Operand_Indirect;
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disp = GETBYTE ();
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#if RX_OPCODE_BIG_ENDIAN
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disp = disp * 256 + GETBYTE ();
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#else
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disp = disp + GETBYTE () * 256;
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#endif
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ld->rx->op[n].addend = disp * PSCALE[size];
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break;
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default:
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abort ();
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}
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}
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#define xO 8
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#define xS 4
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#define xZ 2
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#define xC 1
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#define F_____
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#define F___ZC rx->flags_0 = rx->flags_s = xZ|xC;
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#define F__SZ_ rx->flags_0 = rx->flags_s = xS|xZ;
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#define F__SZC rx->flags_0 = rx->flags_s = xS|xZ|xC;
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#define F_0SZC rx->flags_0 = xO|xS|xZ|xC; rx->flags_s = xS|xZ|xC;
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#define F_O___ rx->flags_0 = rx->flags_s = xO;
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#define F_OS__ rx->flags_0 = rx->flags_s = xO|xS;
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#define F_OSZ_ rx->flags_0 = rx->flags_s = xO|xS|xZ;
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#define F_OSZC rx->flags_0 = rx->flags_s = xO|xS|xZ|xC;
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int
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rx_decode_opcode (unsigned long pc AU,
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RX_Opcode_Decoded * rx,
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int (* getbyte)(void *),
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void * ptr)
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{
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LocalData lds, * ld = &lds;
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unsigned char op[20] = {0};
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lds.rx = rx;
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lds.getbyte = getbyte;
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lds.ptr = ptr;
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lds.op = op;
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memset (rx, 0, sizeof (*rx));
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BWL(LSIZE);
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/** VARY sz 00 01 10 */
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/*----------------------------------------------------------------------*/
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/* MOV */
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/** 0111 0101 0100 rdst mov%s #%1, %0 */
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ID(mov); DR(rdst); SC(IMM (1)); F_____;
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/** 1111 10sd rdst im sz mov%s #%1, %0 */
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ID(mov); DD(sd, rdst, sz);
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if ((im == 1 && sz == 0)
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|| (im == 2 && sz == 1)
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|| (im == 0 && sz == 2))
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{
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BWL (sz);
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SC(IMM(im));
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}
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else
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{
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sBWL (sz);
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SC(IMMex(im));
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}
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F_____;
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/** 0110 0110 immm rdst mov%s #%1, %0 */
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ID(mov); DR(rdst); SC(immm); F_____;
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/** 0011 11sz d dst sppp mov%s #%1, %0 */
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ID(mov); sBWL (sz); DIs(dst, d*16+sppp, sz); SC(IMM(1)); F_____;
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/** 11sz sd ss rsrc rdst mov%s %1, %0 */
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if (sd == 3 && ss == 3 && sz == 2 && rsrc == 0 && rdst == 0)
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{
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ID(nop2);
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rx->syntax = "nop";
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}
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else
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{
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ID(mov); sBWL(sz); F_____;
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if ((ss == 3) && (sd != 3))
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{
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SD(ss, rdst, sz); DD(sd, rsrc, sz);
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}
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else
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{
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SD(ss, rsrc, sz); DD(sd, rdst, sz);
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}
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}
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/** 10sz 1dsp a src b dst mov%s %1, %0 */
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ID(mov); sBWL(sz); DR(dst); SIs(src, dsp*4+a*2+b, sz); F_____;
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/** 10sz 0dsp a dst b src mov%s %1, %0 */
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ID(mov); sBWL(sz); DIs(dst, dsp*4+a*2+b, sz); SR(src); F_____;
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/** 1111 1110 01sz isrc bsrc rdst mov%s [%1, %2], %0 */
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ID(movbi); sBWL(sz); DR(rdst); SRR(isrc); S2R(bsrc); F_____;
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/** 1111 1110 00sz isrc bsrc rdst mov%s %0, [%1, %2] */
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ID(movbir); sBWL(sz); DR(rdst); SRR(isrc); S2R(bsrc); F_____;
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/** 1111 1110 11sz isrc bsrc rdst movu%s [%1, %2], %0 */
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ID(movbi); uBWL(sz); DR(rdst); SRR(isrc); S2R(bsrc); F_____;
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/** 1111 1101 0010 0p sz rdst rsrc mov%s %1, %0 */
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ID(mov); sBWL (sz); SR(rsrc); F_____;
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OP(0, p ? RX_Operand_Predec : RX_Operand_Postinc, rdst, 0);
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/** 1111 1101 0010 1p sz rsrc rdst mov%s %1, %0 */
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ID(mov); sBWL (sz); DR(rdst); F_____;
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OP(1, p ? RX_Operand_Predec : RX_Operand_Postinc, rsrc, 0);
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/** 1011 w dsp a src b dst movu%s %1, %0 */
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ID(mov); uBWL(w); DR(dst); SIs(src, dsp*4+a*2+b, w); F_____;
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/** 0101 1 s ss rsrc rdst movu%s %1, %0 */
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ID(mov); uBWL(s); SD(ss, rsrc, s); DR(rdst); F_____;
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/** 1111 1101 0011 1p sz rsrc rdst movu%s %1, %0 */
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ID(mov); uBWL (sz); DR(rdst); F_____;
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OP(1, p ? RX_Operand_Predec : RX_Operand_Postinc, rsrc, 0);
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/*----------------------------------------------------------------------*/
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/* PUSH/POP */
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/** 0110 1111 dsta dstb popm %1-%2 */
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ID(popm); SR(dsta); S2R(dstb); F_____;
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/** 0110 1110 dsta dstb pushm %1-%2 */
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ID(pushm); SR(dsta); S2R(dstb); F_____;
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/** 0111 1110 1011 rdst pop %0 */
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ID(mov); OP(1, RX_Operand_Postinc, 0, 0); DR(rdst); F_____;
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/** 0111 1110 10sz rsrc push%s %1 */
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ID(mov); BWL(sz); OP(0, RX_Operand_Predec, 0, 0); SR(rsrc); F_____;
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/** 1111 01ss rsrc 10sz push%s %1 */
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ID(mov); BWL(sz); OP(0, RX_Operand_Predec, 0, 0); SD(ss, rsrc, sz); F_____;
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/*----------------------------------------------------------------------*/
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/* XCHG */
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/** 1111 1100 0100 00ss rsrc rdst xchg %1%S1, %0 */
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ID(xchg); DR(rdst); SP(ss, rsrc);
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/** 0000 0110 mx10 00ss 0001 0000 rsrc rdst xchg %1%S1, %0 */
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ID(xchg); DR(rdst); SPm(ss, rsrc, mx);
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/*----------------------------------------------------------------------*/
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/* STZ/STNZ */
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/** 1111 1101 0111 im00 1110rdst stz #%1, %0 */
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ID(stcc); SC(IMMex(im)); DR(rdst); S2cc(RXC_z);
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/** 1111 1101 0111 im00 1111rdst stnz #%1, %0 */
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ID(stcc); SC(IMMex(im)); DR(rdst); S2cc(RXC_nz);
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/*----------------------------------------------------------------------*/
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/* RTSD */
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/** 0110 0111 rtsd #%1 */
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ID(rtsd); SC(IMM(1) * 4);
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/** 0011 1111 rega regb rtsd #%1, %2-%0 */
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ID(rtsd); SC(IMM(1) * 4); S2R(rega); DR(regb);
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/*----------------------------------------------------------------------*/
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/* AND */
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/** 0110 0100 immm rdst and #%1, %0 */
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ID(and); SC(immm); DR(rdst); F__SZ_;
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/** 0111 01im 0010 rdst and #%1, %0 */
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ID(and); SC(IMMex(im)); DR(rdst); F__SZ_;
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/** 0101 00ss rsrc rdst and %1%S1, %0 */
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ID(and); SP(ss, rsrc); DR(rdst); F__SZ_;
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/** 0000 0110 mx01 00ss rsrc rdst and %1%S1, %0 */
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ID(and); SPm(ss, rsrc, mx); DR(rdst); F__SZ_;
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/** 1111 1111 0100 rdst srca srcb and %2, %1, %0 */
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ID(and); DR(rdst); SR(srcb); S2R(srca); F__SZ_;
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/*----------------------------------------------------------------------*/
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/* OR */
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/** 0110 0101 immm rdst or #%1, %0 */
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ID(or); SC(immm); DR(rdst); F__SZ_;
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/** 0111 01im 0011 rdst or #%1, %0 */
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ID(or); SC(IMMex(im)); DR(rdst); F__SZ_;
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/** 0101 01ss rsrc rdst or %1%S1, %0 */
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ID(or); SP(ss, rsrc); DR(rdst); F__SZ_;
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/** 0000 0110 mx01 01ss rsrc rdst or %1%S1, %0 */
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ID(or); SPm(ss, rsrc, mx); DR(rdst); F__SZ_;
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/** 1111 1111 0101 rdst srca srcb or %2, %1, %0 */
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ID(or); DR(rdst); SR(srcb); S2R(srca); F__SZ_;
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/*----------------------------------------------------------------------*/
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/* XOR */
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/** 1111 1101 0111 im00 1101rdst xor #%1, %0 */
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ID(xor); SC(IMMex(im)); DR(rdst); F__SZ_;
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/** 1111 1100 0011 01ss rsrc rdst xor %1%S1, %0 */
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ID(xor); SP(ss, rsrc); DR(rdst); F__SZ_;
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/** 0000 0110 mx10 00ss 0000 1101 rsrc rdst xor %1%S1, %0 */
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ID(xor); SPm(ss, rsrc, mx); DR(rdst); F__SZ_;
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/*----------------------------------------------------------------------*/
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/* NOT */
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/** 0111 1110 0000 rdst not %0 */
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ID(xor); DR(rdst); SR(rdst); S2C(~0); F__SZ_;
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/** 1111 1100 0011 1011 rsrc rdst not %1, %0 */
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ID(xor); DR(rdst); SR(rsrc); S2C(~0); F__SZ_;
|
|
|
|
/*----------------------------------------------------------------------*/
|
|
/* TST */
|
|
|
|
/** 1111 1101 0111 im00 1100rdst tst #%1, %2 */
|
|
ID(and); SC(IMMex(im)); S2R(rdst); F__SZ_;
|
|
|
|
/** 1111 1100 0011 00ss rsrc rdst tst %1%S1, %2 */
|
|
ID(and); SP(ss, rsrc); S2R(rdst); F__SZ_;
|
|
|
|
/** 0000 0110 mx10 00ss 0000 1100 rsrc rdst tst %1%S1, %2 */
|
|
ID(and); SPm(ss, rsrc, mx); S2R(rdst); F__SZ_;
|
|
|
|
/*----------------------------------------------------------------------*/
|
|
/* NEG */
|
|
|
|
/** 0111 1110 0001 rdst neg %0 */
|
|
ID(sub); DR(rdst); SC(0); S2R(rdst); F_OSZC;
|
|
|
|
/** 1111 1100 0000 0111 rsrc rdst neg %2, %0 */
|
|
ID(sub); DR(rdst); SC(0); S2R(rsrc); F_OSZC;
|
|
|
|
/*----------------------------------------------------------------------*/
|
|
/* ADC */
|
|
|
|
/** 1111 1101 0111 im00 0010rdst adc #%1, %0 */
|
|
ID(adc); SC(IMMex(im)); DR(rdst); F_OSZC;
|
|
|
|
/** 1111 1100 0000 1011 rsrc rdst adc %1, %0 */
|
|
ID(adc); SR(rsrc); DR(rdst); F_OSZC;
|
|
|
|
/** 0000 0110 1010 00ss 0000 0010 rsrc rdst adc %1%S1, %0 */
|
|
ID(adc); SPm(ss, rsrc, 2); DR(rdst); F_OSZC;
|
|
|
|
/*----------------------------------------------------------------------*/
|
|
/* ADD */
|
|
|
|
/** 0110 0010 immm rdst add #%1, %0 */
|
|
ID(add); SC(immm); DR(rdst); F_OSZC;
|
|
|
|
/** 0100 10ss rsrc rdst add %1%S1, %0 */
|
|
ID(add); SP(ss, rsrc); DR(rdst); F_OSZC;
|
|
|
|
/** 0000 0110 mx00 10ss rsrc rdst add %1%S1, %0 */
|
|
ID(add); SPm(ss, rsrc, mx); DR(rdst); F_OSZC;
|
|
|
|
/** 0111 00im rsrc rdst add #%1, %2, %0 */
|
|
ID(add); SC(IMMex(im)); S2R(rsrc); DR(rdst); F_OSZC;
|
|
|
|
/** 1111 1111 0010 rdst srca srcb add %2, %1, %0 */
|
|
ID(add); DR(rdst); SR(srcb); S2R(srca); F_OSZC;
|
|
|
|
/*----------------------------------------------------------------------*/
|
|
/* CMP */
|
|
|
|
/** 0110 0001 immm rdst cmp #%2, %1 */
|
|
ID(sub); S2C(immm); SR(rdst); F_OSZC;
|
|
|
|
/** 0111 01im 0000 rsrc cmp #%2, %1%S1 */
|
|
ID(sub); SR(rsrc); S2C(IMMex(im)); F_OSZC;
|
|
|
|
/** 0111 0101 0101 rsrc cmp #%2, %1 */
|
|
ID(sub); SR(rsrc); S2C(IMM(1)); F_OSZC;
|
|
|
|
/** 0100 01ss rsrc rdst cmp %2%S2, %1 */
|
|
ID(sub); S2P(ss, rsrc); SR(rdst); F_OSZC;
|
|
|
|
/** 0000 0110 mx00 01ss rsrc rdst cmp %2%S2, %1 */
|
|
ID(sub); S2Pm(ss, rsrc, mx); SR(rdst); F_OSZC;
|
|
|
|
/*----------------------------------------------------------------------*/
|
|
/* SUB */
|
|
|
|
/** 0110 0000 immm rdst sub #%2, %0 */
|
|
ID(sub); S2C(immm); SR(rdst); DR(rdst); F_OSZC;
|
|
|
|
/** 0100 00ss rsrc rdst sub %2%S2, %1 */
|
|
ID(sub); S2P(ss, rsrc); SR(rdst); DR(rdst); F_OSZC;
|
|
|
|
/** 0000 0110 mx00 00ss rsrc rdst sub %2%S2, %1 */
|
|
ID(sub); S2Pm(ss, rsrc, mx); SR(rdst); DR(rdst); F_OSZC;
|
|
|
|
/** 1111 1111 0000 rdst srca srcb sub %2, %1, %0 */
|
|
ID(sub); DR(rdst); SR(srcb); S2R(srca); F_OSZC;
|
|
|
|
/*----------------------------------------------------------------------*/
|
|
/* SBB */
|
|
|
|
/** 1111 1100 0000 0011 rsrc rdst sbb %1, %0 */
|
|
ID(sbb); SR (rsrc); DR(rdst); F_OSZC;
|
|
|
|
/* FIXME: only supports .L */
|
|
/** 0000 0110 mx10 00sp 0000 0000 rsrc rdst sbb %1%S1, %0 */
|
|
ID(sbb); SPm(sp, rsrc, mx); DR(rdst); F_OSZC;
|
|
|
|
/*----------------------------------------------------------------------*/
|
|
/* ABS */
|
|
|
|
/** 0111 1110 0010 rdst abs %0 */
|
|
ID(abs); DR(rdst); SR(rdst); F_OSZ_;
|
|
|
|
/** 1111 1100 0000 1111 rsrc rdst abs %1, %0 */
|
|
ID(abs); DR(rdst); SR(rsrc); F_OSZ_;
|
|
|
|
/*----------------------------------------------------------------------*/
|
|
/* MAX */
|
|
|
|
/** 1111 1101 0111 im00 0100rdst max #%1, %0 */
|
|
ID(max); DR(rdst); SC(IMMex(im));
|
|
|
|
/** 1111 1100 0001 00ss rsrc rdst max %1%S1, %0 */
|
|
if (ss == 3 && rsrc == 0 && rdst == 0)
|
|
{
|
|
ID(nop3);
|
|
rx->syntax = "nop";
|
|
}
|
|
else
|
|
{
|
|
ID(max); SP(ss, rsrc); DR(rdst);
|
|
}
|
|
|
|
/** 0000 0110 mx10 00ss 0000 0100 rsrc rdst max %1%S1, %0 */
|
|
ID(max); SPm(ss, rsrc, mx); DR(rdst);
|
|
|
|
/*----------------------------------------------------------------------*/
|
|
/* MIN */
|
|
|
|
/** 1111 1101 0111 im00 0101rdst min #%1, %0 */
|
|
ID(min); DR(rdst); SC(IMMex(im));
|
|
|
|
/** 1111 1100 0001 01ss rsrc rdst min %1%S1, %0 */
|
|
ID(min); SP(ss, rsrc); DR(rdst);
|
|
|
|
/** 0000 0110 mx10 00ss 0000 0101 rsrc rdst min %1%S1, %0 */
|
|
ID(min); SPm(ss, rsrc, mx); DR(rdst);
|
|
|
|
/*----------------------------------------------------------------------*/
|
|
/* MUL */
|
|
|
|
/** 0110 0011 immm rdst mul #%1, %0 */
|
|
ID(mul); DR(rdst); SC(immm); F_____;
|
|
|
|
/** 0111 01im 0001rdst mul #%1, %0 */
|
|
ID(mul); DR(rdst); SC(IMMex(im)); F_____;
|
|
|
|
/** 0100 11ss rsrc rdst mul %1%S1, %0 */
|
|
ID(mul); SP(ss, rsrc); DR(rdst); F_____;
|
|
|
|
/** 0000 0110 mx00 11ss rsrc rdst mul %1%S1, %0 */
|
|
ID(mul); SPm(ss, rsrc, mx); DR(rdst); F_____;
|
|
|
|
/** 1111 1111 0011 rdst srca srcb mul %2, %1, %0 */
|
|
ID(mul); DR(rdst); SR(srcb); S2R(srca); F_____;
|
|
|
|
/*----------------------------------------------------------------------*/
|
|
/* EMUL */
|
|
|
|
/** 1111 1101 0111 im00 0110rdst emul #%1, %0 */
|
|
ID(emul); DR(rdst); SC(IMMex(im));
|
|
|
|
/** 1111 1100 0001 10ss rsrc rdst emul %1%S1, %0 */
|
|
ID(emul); SP(ss, rsrc); DR(rdst);
|
|
|
|
/** 0000 0110 mx10 00ss 0000 0110 rsrc rdst emul %1%S1, %0 */
|
|
ID(emul); SPm(ss, rsrc, mx); DR(rdst);
|
|
|
|
/*----------------------------------------------------------------------*/
|
|
/* EMULU */
|
|
|
|
/** 1111 1101 0111 im00 0111rdst emulu #%1, %0 */
|
|
ID(emulu); DR(rdst); SC(IMMex(im));
|
|
|
|
/** 1111 1100 0001 11ss rsrc rdst emulu %1%S1, %0 */
|
|
ID(emulu); SP(ss, rsrc); DR(rdst);
|
|
|
|
/** 0000 0110 mx10 00ss 0000 0111 rsrc rdst emulu %1%S1, %0 */
|
|
ID(emulu); SPm(ss, rsrc, mx); DR(rdst);
|
|
|
|
/*----------------------------------------------------------------------*/
|
|
/* DIV */
|
|
|
|
/** 1111 1101 0111 im00 1000rdst div #%1, %0 */
|
|
ID(div); DR(rdst); SC(IMMex(im)); F_O___;
|
|
|
|
/** 1111 1100 0010 00ss rsrc rdst div %1%S1, %0 */
|
|
ID(div); SP(ss, rsrc); DR(rdst); F_O___;
|
|
|
|
/** 0000 0110 mx10 00ss 0000 1000 rsrc rdst div %1%S1, %0 */
|
|
ID(div); SPm(ss, rsrc, mx); DR(rdst); F_O___;
|
|
|
|
/*----------------------------------------------------------------------*/
|
|
/* DIVU */
|
|
|
|
/** 1111 1101 0111 im00 1001rdst divu #%1, %0 */
|
|
ID(divu); DR(rdst); SC(IMMex(im)); F_O___;
|
|
|
|
/** 1111 1100 0010 01ss rsrc rdst divu %1%S1, %0 */
|
|
ID(divu); SP(ss, rsrc); DR(rdst); F_O___;
|
|
|
|
/** 0000 0110 mx10 00ss 0000 1001 rsrc rdst divu %1%S1, %0 */
|
|
ID(divu); SPm(ss, rsrc, mx); DR(rdst); F_O___;
|
|
|
|
/*----------------------------------------------------------------------*/
|
|
/* SHIFT */
|
|
|
|
/** 0110 110i mmmm rdst shll #%2, %0 */
|
|
ID(shll); S2C(i*16+mmmm); SR(rdst); DR(rdst); F_OSZC;
|
|
|
|
/** 1111 1101 0110 0010 rsrc rdst shll %2, %0 */
|
|
ID(shll); S2R(rsrc); SR(rdst); DR(rdst); F_OSZC;
|
|
|
|
/** 1111 1101 110immmm rsrc rdst shll #%2, %1, %0 */
|
|
ID(shll); S2C(immmm); SR(rsrc); DR(rdst); F_OSZC;
|
|
|
|
|
|
/** 0110 101i mmmm rdst shar #%2, %0 */
|
|
ID(shar); S2C(i*16+mmmm); SR(rdst); DR(rdst); F_0SZC;
|
|
|
|
/** 1111 1101 0110 0001 rsrc rdst shar %2, %0 */
|
|
ID(shar); S2R(rsrc); SR(rdst); DR(rdst); F_0SZC;
|
|
|
|
/** 1111 1101 101immmm rsrc rdst shar #%2, %1, %0 */
|
|
ID(shar); S2C(immmm); SR(rsrc); DR(rdst); F_0SZC;
|
|
|
|
|
|
/** 0110 100i mmmm rdst shlr #%2, %0 */
|
|
ID(shlr); S2C(i*16+mmmm); SR(rdst); DR(rdst); F__SZC;
|
|
|
|
/** 1111 1101 0110 0000 rsrc rdst shlr %2, %0 */
|
|
ID(shlr); S2R(rsrc); SR(rdst); DR(rdst); F__SZC;
|
|
|
|
/** 1111 1101 100immmm rsrc rdst shlr #%2, %1, %0 */
|
|
ID(shlr); S2C(immmm); SR(rsrc); DR(rdst); F__SZC;
|
|
|
|
/*----------------------------------------------------------------------*/
|
|
/* ROTATE */
|
|
|
|
/** 0111 1110 0101 rdst rolc %0 */
|
|
ID(rolc); DR(rdst); F__SZC;
|
|
|
|
/** 0111 1110 0100 rdst rorc %0 */
|
|
ID(rorc); DR(rdst); F__SZC;
|
|
|
|
/** 1111 1101 0110 111i mmmm rdst rotl #%1, %0 */
|
|
ID(rotl); SC(i*16+mmmm); DR(rdst); F__SZC;
|
|
|
|
/** 1111 1101 0110 0110 rsrc rdst rotl %1, %0 */
|
|
ID(rotl); SR(rsrc); DR(rdst); F__SZC;
|
|
|
|
/** 1111 1101 0110 110i mmmm rdst rotr #%1, %0 */
|
|
ID(rotr); SC(i*16+mmmm); DR(rdst); F__SZC;
|
|
|
|
/** 1111 1101 0110 0100 rsrc rdst rotr %1, %0 */
|
|
ID(rotr); SR(rsrc); DR(rdst); F__SZC;
|
|
|
|
/** 1111 1101 0110 0101 rsrc rdst revw %1, %0 */
|
|
ID(revw); SR(rsrc); DR(rdst);
|
|
|
|
/** 1111 1101 0110 0111 rsrc rdst revl %1, %0 */
|
|
ID(revl); SR(rsrc); DR(rdst);
|
|
|
|
/*----------------------------------------------------------------------*/
|
|
/* BRANCH */
|
|
|
|
/** 0001 n dsp b%1.s %a0 */
|
|
ID(branch); Scc(n); DC(pc + dsp3map[dsp]);
|
|
|
|
/** 0010 cond b%1.b %a0 */
|
|
ID(branch); Scc(cond); DC(pc + IMMex (1));
|
|
|
|
/** 0011 101c b%1.w %a0 */
|
|
ID(branch); Scc(c); DC(pc + IMMex (2));
|
|
|
|
|
|
/** 0000 1dsp bra.s %a0 */
|
|
ID(branch); DC(pc + dsp3map[dsp]);
|
|
|
|
/** 0010 1110 bra.b %a0 */
|
|
ID(branch); DC(pc + IMMex(1));
|
|
|
|
/** 0011 1000 bra.w %a0 */
|
|
ID(branch); DC(pc + IMMex(2));
|
|
|
|
/** 0000 0100 bra.a %a0 */
|
|
ID(branch); DC(pc + IMMex(3));
|
|
|
|
/** 0111 1111 0100 rsrc bra.l %0 */
|
|
ID(branchrel); DR(rsrc);
|
|
|
|
|
|
/** 0111 1111 0000 rsrc jmp %0 */
|
|
ID(branch); DR(rsrc);
|
|
|
|
/** 0111 1111 0001 rsrc jsr %0 */
|
|
ID(jsr); DR(rsrc);
|
|
|
|
/** 0011 1001 bsr.w %a0 */
|
|
ID(jsr); DC(pc + IMMex(2));
|
|
|
|
/** 0000 0101 bsr.a %a0 */
|
|
ID(jsr); DC(pc + IMMex(3));
|
|
|
|
/** 0111 1111 0101 rsrc bsr.l %0 */
|
|
ID(jsrrel); DR(rsrc);
|
|
|
|
/** 0000 0010 rts */
|
|
ID(rts);
|
|
|
|
/*----------------------------------------------------------------------*/
|
|
/* NOP */
|
|
|
|
/** 0000 0011 nop */
|
|
ID(nop);
|
|
|
|
/*----------------------------------------------------------------------*/
|
|
/* STRING FUNCTIONS */
|
|
|
|
/** 0111 1111 1000 0011 scmpu */
|
|
ID(scmpu); F___ZC;
|
|
|
|
/** 0111 1111 1000 0111 smovu */
|
|
ID(smovu);
|
|
|
|
/** 0111 1111 1000 1011 smovb */
|
|
ID(smovb);
|
|
|
|
/** 0111 1111 1000 00sz suntil%s */
|
|
ID(suntil); BWL(sz); F___ZC;
|
|
|
|
/** 0111 1111 1000 01sz swhile%s */
|
|
ID(swhile); BWL(sz); F___ZC;
|
|
|
|
/** 0111 1111 1000 1111 smovf */
|
|
ID(smovf);
|
|
|
|
/** 0111 1111 1000 10sz sstr%s */
|
|
ID(sstr); BWL(sz);
|
|
|
|
/*----------------------------------------------------------------------*/
|
|
/* RMPA */
|
|
|
|
/** 0111 1111 1000 11sz rmpa%s */
|
|
ID(rmpa); BWL(sz); F_OS__;
|
|
|
|
/*----------------------------------------------------------------------*/
|
|
/* HI/LO stuff */
|
|
|
|
/** 1111 1101 0000 0000 srca srcb mulhi %1, %2 */
|
|
ID(mulhi); SR(srca); S2R(srcb); F_____;
|
|
|
|
/** 1111 1101 0000 0001 srca srcb mullo %1, %2 */
|
|
ID(mullo); SR(srca); S2R(srcb); F_____;
|
|
|
|
/** 1111 1101 0000 0100 srca srcb machi %1, %2 */
|
|
ID(machi); SR(srca); S2R(srcb); F_____;
|
|
|
|
/** 1111 1101 0000 0101 srca srcb maclo %1, %2 */
|
|
ID(maclo); SR(srca); S2R(srcb); F_____;
|
|
|
|
/** 1111 1101 0001 0111 0000 rsrc mvtachi %1 */
|
|
ID(mvtachi); SR(rsrc); F_____;
|
|
|
|
/** 1111 1101 0001 0111 0001 rsrc mvtaclo %1 */
|
|
ID(mvtaclo); SR(rsrc); F_____;
|
|
|
|
/** 1111 1101 0001 1111 0000 rdst mvfachi %0 */
|
|
ID(mvfachi); DR(rdst); F_____;
|
|
|
|
/** 1111 1101 0001 1111 0010 rdst mvfacmi %0 */
|
|
ID(mvfacmi); DR(rdst); F_____;
|
|
|
|
/** 1111 1101 0001 1111 0001 rdst mvfaclo %0 */
|
|
ID(mvfaclo); DR(rdst); F_____;
|
|
|
|
/** 1111 1101 0001 1000 000i 0000 racw #%1 */
|
|
ID(racw); SC(i+1); F_____;
|
|
|
|
/*----------------------------------------------------------------------*/
|
|
/* SAT */
|
|
|
|
/** 0111 1110 0011 rdst sat %0 */
|
|
ID(sat); DR (rdst);
|
|
|
|
/** 0111 1111 1001 0011 satr */
|
|
ID(satr);
|
|
|
|
/*----------------------------------------------------------------------*/
|
|
/* FLOAT */
|
|
|
|
/** 1111 1101 0111 0010 0010 rdst fadd #%1, %0 */
|
|
ID(fadd); DR(rdst); SC(IMM(0)); F__SZ_;
|
|
|
|
/** 1111 1100 1000 10sd rsrc rdst fadd %1%S1, %0 */
|
|
ID(fadd); DR(rdst); SD(sd, rsrc, LSIZE); F__SZ_;
|
|
|
|
/** 1111 1101 0111 0010 0001 rdst fcmp #%1, %0 */
|
|
ID(fcmp); DR(rdst); SC(IMM(0)); F_OSZ_;
|
|
|
|
/** 1111 1100 1000 01sd rsrc rdst fcmp %1%S1, %0 */
|
|
ID(fcmp); DR(rdst); SD(sd, rsrc, LSIZE); F_OSZ_;
|
|
|
|
/** 1111 1101 0111 0010 0000 rdst fsub #%1, %0 */
|
|
ID(fsub); DR(rdst); SC(IMM(0)); F__SZ_;
|
|
|
|
/** 1111 1100 1000 00sd rsrc rdst fsub %1%S1, %0 */
|
|
ID(fsub); DR(rdst); SD(sd, rsrc, LSIZE); F__SZ_;
|
|
|
|
/** 1111 1100 1001 01sd rsrc rdst ftoi %1%S1, %0 */
|
|
ID(ftoi); DR(rdst); SD(sd, rsrc, LSIZE); F__SZ_;
|
|
|
|
/** 1111 1101 0111 0010 0011 rdst fmul #%1, %0 */
|
|
ID(fmul); DR(rdst); SC(IMM(0)); F__SZ_;
|
|
|
|
/** 1111 1100 1000 11sd rsrc rdst fmul %1%S1, %0 */
|
|
ID(fmul); DR(rdst); SD(sd, rsrc, LSIZE); F__SZ_;
|
|
|
|
/** 1111 1101 0111 0010 0100 rdst fdiv #%1, %0 */
|
|
ID(fdiv); DR(rdst); SC(IMM(0)); F__SZ_;
|
|
|
|
/** 1111 1100 1001 00sd rsrc rdst fdiv %1%S1, %0 */
|
|
ID(fdiv); DR(rdst); SD(sd, rsrc, LSIZE); F__SZ_;
|
|
|
|
/** 1111 1100 1001 10sd rsrc rdst round %1%S1, %0 */
|
|
ID(round); DR(rdst); SD(sd, rsrc, LSIZE); F__SZ_;
|
|
|
|
/** 1111 1100 0100 01sd rsrc rdst itof %1%S1, %0 */
|
|
ID(itof); DR (rdst); SP(sd, rsrc); F__SZ_;
|
|
|
|
/** 0000 0110 mx10 00sd 0001 0001 rsrc rdst itof %1%S1, %0 */
|
|
ID(itof); DR (rdst); SPm(sd, rsrc, mx); F__SZ_;
|
|
|
|
/*----------------------------------------------------------------------*/
|
|
/* BIT OPS */
|
|
|
|
/** 1111 00sd rdst 0bit bset #%1, %0%S0 */
|
|
ID(bset); BWL(BSIZE); SC(bit); DD(sd, rdst, BSIZE); F_____;
|
|
|
|
/** 1111 1100 0110 00sd rdst rsrc bset %1, %0%S0 */
|
|
ID(bset); BWL(BSIZE); SR(rsrc); DD(sd, rdst, BSIZE); F_____;
|
|
if (sd == 3) /* bset reg,reg */
|
|
BWL(LSIZE);
|
|
|
|
/** 0111 100b ittt rdst bset #%1, %0 */
|
|
ID(bset); BWL(LSIZE); SC(b*16+ittt); DR(rdst); F_____;
|
|
|
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/** 1111 00sd rdst 1bit bclr #%1, %0%S0 */
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ID(bclr); BWL(BSIZE); SC(bit); DD(sd, rdst, BSIZE); F_____;
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/** 1111 1100 0110 01sd rdst rsrc bclr %1, %0%S0 */
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ID(bclr); BWL(BSIZE); SR(rsrc); DD(sd, rdst, BSIZE); F_____;
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if (sd == 3) /* bset reg,reg */
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BWL(LSIZE);
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/** 0111 101b ittt rdst bclr #%1, %0 */
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ID(bclr); BWL(LSIZE); SC(b*16+ittt); DR(rdst); F_____;
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/** 1111 01sd rdst 0bit btst #%2, %1%S1 */
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ID(btst); BWL(BSIZE); S2C(bit); SD(sd, rdst, BSIZE); F___ZC;
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/** 1111 1100 0110 10sd rdst rsrc btst %2, %1%S1 */
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ID(btst); BWL(BSIZE); S2R(rsrc); SD(sd, rdst, BSIZE); F___ZC;
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if (sd == 3) /* bset reg,reg */
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BWL(LSIZE);
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/** 0111 110b ittt rdst btst #%2, %1 */
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ID(btst); BWL(LSIZE); S2C(b*16+ittt); SR(rdst); F___ZC;
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/** 1111 1100 111bit sd rdst 1111 bnot #%1, %0%S0 */
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ID(bnot); BWL(BSIZE); SC(bit); DD(sd, rdst, BSIZE);
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/** 1111 1100 0110 11sd rdst rsrc bnot %1, %0%S0 */
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ID(bnot); BWL(BSIZE); SR(rsrc); DD(sd, rdst, BSIZE);
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if (sd == 3) /* bset reg,reg */
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BWL(LSIZE);
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/** 1111 1101 111bittt 1111 rdst bnot #%1, %0 */
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ID(bnot); BWL(LSIZE); SC(bittt); DR(rdst);
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/** 1111 1100 111bit sd rdst cond bm%2 #%1, %0%S0 */
|
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ID(bmcc); BWL(BSIZE); S2cc(cond); SC(bit); DD(sd, rdst, BSIZE);
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/** 1111 1101 111 bittt cond rdst bm%2 #%1, %0%S0 */
|
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ID(bmcc); BWL(LSIZE); S2cc(cond); SC(bittt); DR(rdst);
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|
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/*----------------------------------------------------------------------*/
|
|
/* CONTROL REGISTERS */
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/** 0111 1111 1011 rdst clrpsw %0 */
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ID(clrpsw); DF(rdst);
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|
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/** 0111 1111 1010 rdst setpsw %0 */
|
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ID(setpsw); DF(rdst);
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|
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/** 0111 0101 0111 0000 0000 immm mvtipl #%1 */
|
|
ID(mvtipl); SC(immm);
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|
|
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/** 0111 1110 111 crdst popc %0 */
|
|
ID(mov); OP(1, RX_Operand_Postinc, 0, 0); DR(crdst + 16);
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|
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/** 0111 1110 110 crsrc pushc %1 */
|
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ID(mov); OP(0, RX_Operand_Predec, 0, 0); SR(crsrc + 16);
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/** 1111 1101 0111 im11 000crdst mvtc #%1, %0 */
|
|
ID(mov); SC(IMMex(im)); DR(crdst + 16);
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/** 1111 1101 0110 100c rsrc rdst mvtc %1, %0 */
|
|
ID(mov); SR(rsrc); DR(c*16+rdst + 16);
|
|
|
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/** 1111 1101 0110 101s rsrc rdst mvfc %1, %0 */
|
|
ID(mov); SR((s*16+rsrc) + 16); DR(rdst);
|
|
|
|
/*----------------------------------------------------------------------*/
|
|
/* INTERRUPTS */
|
|
|
|
/** 0111 1111 1001 0100 rtfi */
|
|
ID(rtfi);
|
|
|
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/** 0111 1111 1001 0101 rte */
|
|
ID(rte);
|
|
|
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/** 0000 0000 brk */
|
|
ID(brk);
|
|
|
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/** 0000 0001 dbt */
|
|
ID(dbt);
|
|
|
|
/** 0111 0101 0110 0000 int #%1 */
|
|
ID(int); SC(IMM(1));
|
|
|
|
/** 0111 1111 1001 0110 wait */
|
|
ID(wait);
|
|
|
|
/*----------------------------------------------------------------------*/
|
|
/* SCcnd */
|
|
|
|
/** 1111 1100 1101 sz sd rdst cond sc%1%s %0 */
|
|
ID(sccnd); BWL(sz); DD (sd, rdst, sz); Scc(cond);
|
|
|
|
/** */
|
|
|
|
return rx->n_bytes;
|
|
}
|