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/* tic54x.h -- Header file for TI TMS320C54X opcode table
Copyright 1999, 2000 Free Software Foundation, Inc.
Written by Timothy Wall (twall@cygnus.com)
This file is part of GDB, GAS, and the GNU binutils.
GDB, GAS, and the GNU binutils are free software; you can redistribute
them and/or modify them under the terms of the GNU General Public
License as published by the Free Software Foundation; either version
1, or (at your option) any later version.
GDB, GAS, and the GNU binutils are distributed in the hope that they
will be useful, but WITHOUT ANY WARRANTY; without even the implied
warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
the GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this file; see the file COPYING. If not, write to the Free
Software Foundation, 59 Temple Place - Suite 330, Boston, MA
02111-1307, USA. */
#ifndef _TIC54X_H_
#define _TIC54X_H_
typedef struct _symbol
{
const char *name;
unsigned short value;
} symbol;
enum optype {
OPT = 0x8000,
OP_None = 0x0,
OP_Xmem, /* AR3 or AR4, indirect */
OP_Ymem, /* AR3 or AR4, indirect */
OP_pmad, /* PROG mem, direct */
OP_dmad, /* DATA mem, direct */
OP_Smem,
OP_Lmem, /* 32-bit single-addressed (direct/indirect) */
OP_MMR,
OP_PA,
OP_Sind,
OP_xpmad,
OP_xpmad_ms7,
OP_MMRX,
OP_MMRY,
OP_SRC1, /* src accumulator in bit 8 */
OP_SRC, /* src accumulator in bit 9 */
OP_RND, /* rounded result dst accumulator, opposite of bit 8 */
OP_DST, /* dst accumulator in bit 8 */
OP_ARX, /* arX in bits 0-3 */
OP_SHIFT, /* -16 to 15 (SHIFT), bits 0-4 */
OP_SHFT, /* 0 to 15 (SHIFT1 in summary), bits 0-3 */
OP_B, /* ACC B only */
OP_A, /* ACC A only */
OP_lk, /* 16-bit immediate, '#' optional */
OP_TS,
OP_k8, /* -128 <= k <= 128 */
OP_16, /* literal "16" */
OP_BITC, /* 0 to 16 */
OP_CC, /* condition code */
OP_CC2, /* 4-bit condition code */
OP_CC3, /* 2-bit condition code */
OP_123, /* 1, 2, or 3 */
OP_031, /* 0-31, numeric */
OP_k5, /* 0 to 31 */
OP_k8u, /* 0 to 255 */
OP_ASM, /* "ASM" */
OP_T, /* "T" */
OP_DP, /* "DP" */
OP_ARP, /* "ARP" */
OP_k3, /* 0-7 */
OP_lku, /* 0 to 65535 */
OP_N, /* 0/1 or ST0/ST1 */
OP_SBIT, /* status bit or 0-15 */
OP_12, /* one or two */
OP_k9, /* 9 bits of data page (DP) address */
OP_TRN, /* "TRN" */
};
typedef struct _template
{
/* The opcode mnemonic */
const char *name;
unsigned int words; /* insn size in words */
int minops, maxops; /* min/max operand count */
/* The significant bits in the opcode. Other bits are zero.
Instructions with more than 16 bits of opcode store the rest in the upper
16 bits.
*/
unsigned short opcode;
#define INDIRECT(OP) ((OP)&0x80)
#define MOD(OP) (((OP)>>3)&0xF)
#define ARF(OP) ((OP)&0x7)
#define IS_LKADDR(OP) (INDIRECT(OP) && MOD(OP)>=12)
#define SRC(OP) ((OP)&0x200)
#define DST(OP) ((OP)&0x100)
#define SRC1(OP) ((OP)&0x100)
#define SHIFT(OP) (((OP)&0x10)?(((OP)&0x1F)-32):((OP)&0x1F))
#define SHFT(OP) ((OP)&0xF)
#define ARX(OP) ((OP)&0x7)
#define XMEM(OP) (((OP)&0x00F0)>>4)
#define YMEM(OP) ((OP)&0x000F)
#define XMOD(C) (((C)&0xC)>>2)
#define XARX(C) (((C)&0x3)+2)
#define CC3(OP) (((OP)>>8)&0x3)
#define SBIT(OP) ((OP)&0xF)
#define MMR(OP) ((OP)&0x7F)
#define MMRX(OP) ((((OP)>>4)&0xF)+16)
#define MMRY(OP) (((OP)&0xF)+16)
#define OPTYPE(X) ((X)&~OPT)
/* Ones in this mask indicate which bits must match the opcode field.
Zeroes indicate don't care bits (operands and/or opcode options) */
unsigned short mask;
/* An array of operand codes (at most 4 operands) */
#define MAX_OPERANDS 4
enum optype operand_types[MAX_OPERANDS];
/* Special purpose flags (e.g. branch type, parallel, delay, etc)
*/
unsigned short flags;
#define B_NEXT 0 /* normal execution, next insn is next address */
#define B_BRANCH 1 /* next insn is in opcode */
#define B_RET 2 /* next insn is on stack */
#define B_BACC 3 /* next insn is in acc */
#define B_REPEAT 4 /* next insn repeats */
#define FL_BMASK 0x07
#define FL_DELAY 0x10 /* instruction uses delay slots */
#define FL_EXT 0x20 /* instruction takes two words */
#define FL_FAR 0x40 /* far mode addressing */
#define FL_LP 0x80 /* LP-only instruction */
#define FL_NR 0x100 /* no repeat allowed */
#define FL_SMR 0x200 /* Smem read (for flagging write-only *+ARx */
unsigned short opcode2, mask2; /* some insns have an extended opcode */
} template;
typedef struct _partemplate {
char *name;
char *parname;
unsigned int words; /* length in words */
int minops, maxops; /* min/max operand count for 2nd part of insn */
unsigned short opcode;
unsigned short mask;
enum optype operand_types[MAX_OPERANDS];
enum optype paroperand_types[MAX_OPERANDS];
} partemplate;
extern const template tic54x_unknown_opcode;
extern const template tic54x_optab[];
extern const partemplate tic54x_paroptab[];
extern const symbol mmregs[], regs[];
extern const symbol condition_codes[], cc2_codes[], status_bits[];
extern const symbol cc3_codes[];
extern const char *misc_symbols[];
#endif /* TIC54X_H */
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