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/* Opcode table for the TI MSP430 microcontrollers
Copyright (C) 2002-2021 Free Software Foundation, Inc.
Contributed by Dmitry Diky <diwil@mail.ru>
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 3, or (at your option)
any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
MA 02110-1301, USA. */
#ifndef __MSP430_H_
#define __MSP430_H_
enum msp430_expp_e
{
MSP_EXPP_ALL = 0, /* Use full the value of the expression - default. */
MSP_EXPP_LO, /* Extract least significant word from expression. */
MSP_EXPP_HI, /* Extract 2nd word from expression. */
MSP_EXPP_LLO, /* Extract least significant word from an
immediate value. */
MSP_EXPP_LHI, /* Extract 2nd word from an immediate value. */
MSP_EXPP_HLO, /* Extract 3rd word from an immediate value. */
MSP_EXPP_HHI, /* Extract 4th word from an immediate value. */
};
struct msp430_operand_s
{
int ol; /* Operand length words. */
int am; /* Addr mode. */
int reg; /* Register. */
int mode; /* Operand mode. */
int vshift; /* Number of bytes to shift operand down. */
enum msp430_expp_e expp; /* For when the operand is a constant
expression, the part of the expression to
extract. */
#define OP_REG 0
#define OP_EXP 1
#ifndef DASM_SECTION
expressionS exp;
#endif
};
/* Byte operation flag for all instructions. Also used as the
A/L bit in the extension word to indicate a 20-bit operation. */
#define BYTE_OPERATION (1 << 6)
/* Z/C bit in the extension word. If set the carry bit is ignored
for the duration of the operation, although it may be changed as
a result of the operation. */
#define IGNORE_CARRY_BIT (1 << 8)
struct msp430_opcode_s
{
const char *name;
int fmt;
int insn_opnumb;
int bin_opcode;
int bin_mask;
};
#define MSP_INSN(name, fmt, numb, bin, mask) { #name, fmt, numb, bin, mask }
static struct msp430_opcode_s msp430_opcodes[] =
{
MSP_INSN (and, 1, 2, 0xf000, 0xf000),
MSP_INSN (inv, 0, 1, 0xe330, 0xfff0),
MSP_INSN (xor, 1, 2, 0xe000, 0xf000),
MSP_INSN (setz, 0, 0, 0xd322, 0xffff),
MSP_INSN (setc, 0, 0, 0xd312, 0xffff),
MSP_INSN (eint, 0, 0, 0xd232, 0xffff),
MSP_INSN (setn, 0, 0, 0xd222, 0xffff),
MSP_INSN (bis, 1, 2, 0xd000, 0xf000),
MSP_INSN (clrz, 0, 0, 0xc322, 0xffff),
MSP_INSN (clrc, 0, 0, 0xc312, 0xffff),
MSP_INSN (dint, 0, 0, 0xc232, 0xffff),
MSP_INSN (clrn, 0, 0, 0xc222, 0xffff),
MSP_INSN (bic, 1, 2, 0xc000, 0xf000),
MSP_INSN (bit, 1, 2, 0xb000, 0xf000),
MSP_INSN (dadc, 0, 1, 0xa300, 0xff30),
MSP_INSN (dadd, 1, 2, 0xa000, 0xf000),
MSP_INSN (tst, 0, 1, 0x9300, 0xff30),
MSP_INSN (cmp, 1, 2, 0x9000, 0xf000),
MSP_INSN (decd, 0, 1, 0x8320, 0xff30),
MSP_INSN (dec, 0, 1, 0x8310, 0xff30),
MSP_INSN (sub, 1, 2, 0x8000, 0xf000),
MSP_INSN (sbc, 0, 1, 0x7300, 0xff30),
MSP_INSN (subc, 1, 2, 0x7000, 0xf000),
MSP_INSN (adc, 0, 1, 0x6300, 0xff30),
MSP_INSN (rlc, 0, 2, 0x6000, 0xf000),
MSP_INSN (addc, 1, 2, 0x6000, 0xf000),
MSP_INSN (incd, 0, 1, 0x5320, 0xff30),
MSP_INSN (inc, 0, 1, 0x5310, 0xff30),
MSP_INSN (rla, 0, 2, 0x5000, 0xf000),
MSP_INSN (add, 1, 2, 0x5000, 0xf000),
MSP_INSN (nop, 0, 0, 0x4303, 0xffff),
MSP_INSN (clr, 0, 1, 0x4300, 0xff30),
MSP_INSN (ret, 0, 0, 0x4130, 0xff30),
MSP_INSN (pop, 0, 1, 0x4130, 0xff30),
MSP_INSN (br, 0, 3, 0x4000, 0xf000),
MSP_INSN (mov, 1, 2, 0x4000, 0xf000),
MSP_INSN (jmp, 3, 1, 0x3c00, 0xfc00),
MSP_INSN (jl, 3, 1, 0x3800, 0xfc00),
MSP_INSN (jge, 3, 1, 0x3400, 0xfc00),
MSP_INSN (jn, 3, 1, 0x3000, 0xfc00),
MSP_INSN (jc, 3, 1, 0x2c00, 0xfc00),
MSP_INSN (jhs, 3, 1, 0x2c00, 0xfc00),
MSP_INSN (jnc, 3, 1, 0x2800, 0xfc00),
MSP_INSN (jlo, 3, 1, 0x2800, 0xfc00),
MSP_INSN (jz, 3, 1, 0x2400, 0xfc00),
MSP_INSN (jeq, 3, 1, 0x2400, 0xfc00),
MSP_INSN (jnz, 3, 1, 0x2000, 0xfc00),
MSP_INSN (jne, 3, 1, 0x2000, 0xfc00),
MSP_INSN (reti, 2, 0, 0x1300, 0xffc0),
MSP_INSN (call, 2, 1, 0x1280, 0xffc0),
MSP_INSN (push, 2, 1, 0x1200, 0xff80),
MSP_INSN (sxt, 2, 1, 0x1180, 0xffc0),
MSP_INSN (rra, 2, 1, 0x1100, 0xff80),
MSP_INSN (swpb, 2, 1, 0x1080, 0xffc0),
MSP_INSN (rrc, 2, 1, 0x1000, 0xff80),
/* Simple polymorphs. */
MSP_INSN (beq, 4, 0, 0, 0xffff),
MSP_INSN (bne, 4, 1, 0, 0xffff),
MSP_INSN (blt, 4, 2, 0, 0xffff),
MSP_INSN (bltu, 4, 3, 0, 0xffff),
MSP_INSN (bge, 4, 4, 0, 0xffff),
MSP_INSN (bgeu, 4, 5, 0, 0xffff),
MSP_INSN (bltn, 4, 6, 0, 0xffff),
MSP_INSN (jump, 4, 7, 0, 0xffff),
/* Long polymorphs. */
MSP_INSN (bgt, 5, 0, 0, 0xffff),
MSP_INSN (bgtu, 5, 1, 0, 0xffff),
MSP_INSN (bleu, 5, 2, 0, 0xffff),
MSP_INSN (ble, 5, 3, 0, 0xffff),
/* MSP430X instructions - these ones use an extension word.
A negative format indicates an MSP430X instruction. */
MSP_INSN (addcx, -2, 2, 0x6000, 0xf000),
MSP_INSN (addx, -2, 2, 0x5000, 0xf000),
MSP_INSN (andx, -2, 2, 0xf000, 0xf000),
MSP_INSN (bicx, -2, 2, 0xc000, 0xf000),
MSP_INSN (bisx, -2, 2, 0xd000, 0xf000),
MSP_INSN (bitx, -2, 2, 0xb000, 0xf000),
MSP_INSN (cmpx, -2, 2, 0x9000, 0xf000),
MSP_INSN (daddx, -2, 2, 0xa000, 0xf000),
MSP_INSN (movx, -2, 2, 0x4000, 0xf000),
MSP_INSN (subcx, -2, 2, 0x7000, 0xf000),
MSP_INSN (subx, -2, 2, 0x8000, 0xf000),
MSP_INSN (xorx, -2, 2, 0xe000, 0xf000),
/* MSP430X Synthetic instructions. */
MSP_INSN (adcx, -1, 1, 0x6300, 0xff30),
MSP_INSN (clra, -1, 1, 0x4300, 0xff30),
MSP_INSN (clrx, -1, 1, 0x4300, 0xff30),
MSP_INSN (dadcx, -1, 1, 0xa300, 0xff30),
MSP_INSN (decx, -1, 1, 0x8310, 0xff30),
MSP_INSN (decda, -1, 1, 0x8320, 0xff30),
MSP_INSN (decdx, -1, 1, 0x8320, 0xff30),
MSP_INSN (incx, -1, 1, 0x5310, 0xff30),
MSP_INSN (incda, -1, 1, 0x5320, 0xff30),
MSP_INSN (incdx, -1, 1, 0x5320, 0xff30),
MSP_INSN (invx, -1, 1, 0xe330, 0xfff0),
MSP_INSN (popx, -1, 1, 0x4130, 0xff30),
MSP_INSN (rlax, -1, 2, 0x5000, 0xf000),
MSP_INSN (rlcx, -1, 2, 0x6000, 0xf000),
MSP_INSN (sbcx, -1, 1, 0x7300, 0xff30),
MSP_INSN (tsta, -1, 1, 0x9300, 0xff30),
MSP_INSN (tstx, -1, 1, 0x9300, 0xff30),
MSP_INSN (pushx, -3, 1, 0x1200, 0xff80),
MSP_INSN (rrax, -3, 1, 0x1100, 0xff80),
MSP_INSN (rrcx, -3, 1, 0x1000, 0xff80), /* Synthesised as RRC but with the Z/C bit clear. */
MSP_INSN (rrux, -3, 1, 0x1000, 0xff80), /* Synthesised as RRC but with the Z/C bit set. */
MSP_INSN (swpbx, -3, 1, 0x1080, 0xffc0),
MSP_INSN (sxtx, -3, 1, 0x1180, 0xffc0),
/* MSP430X Address instructions - no extension word needed.
The insn_opnumb field is used to encode the nature of the
instruction for assembly and disassembly purposes. */
MSP_INSN (calla, -1, 4, 0x1300, 0xff00),
MSP_INSN (popm, -1, 5, 0x1600, 0xfe00),
MSP_INSN (pushm, -1, 5, 0x1400, 0xfe00),
MSP_INSN (rrcm, -1, 6, 0x0040, 0xf3e0),
MSP_INSN (rram, -1, 6, 0x0140, 0xf3e0),
MSP_INSN (rlam, -1, 6, 0x0240, 0xf3e0),
MSP_INSN (rrum, -1, 6, 0x0340, 0xf3e0),
MSP_INSN (adda, -1, 8, 0x00a0, 0xf0b0),
MSP_INSN (cmpa, -1, 8, 0x0090, 0xf0b0),
MSP_INSN (suba, -1, 8, 0x00b0, 0xf0b0),
MSP_INSN (reta, -1, 9, 0x0110, 0xffff),
MSP_INSN (bra, -1, 9, 0x0000, 0xf0cf),
MSP_INSN (mova, -1, 9, 0x0000, 0xf080),
MSP_INSN (mova, -1, 9, 0x0080, 0xf0b0),
MSP_INSN (mova, -1, 9, 0x00c0, 0xf0f0),
/* Pseudo instruction to set the repeat field in the extension word. */
MSP_INSN (rpt, -1, 10, 0x0000, 0x0000),
/* End of instruction set. */
{ NULL, 0, 0, 0, 0 }
};
#endif
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