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Diffstat (limited to 'include/opcode/msp430.h')
| -rw-r--r-- | include/opcode/msp430.h | 216 |
1 files changed, 216 insertions, 0 deletions
diff --git a/include/opcode/msp430.h b/include/opcode/msp430.h new file mode 100644 index 000000000..a59ede215 --- /dev/null +++ b/include/opcode/msp430.h @@ -0,0 +1,216 @@ +/* Opcode table for the TI MSP430 microcontrollers + + Copyright 2002, 2004 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 2, 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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ + +#ifndef __MSP430_H_ +#define __MSP430_H_ + +struct msp430_operand_s +{ + int ol; /* Operand length words. */ + int am; /* Addr mode. */ + int reg; /* Register. */ + int mode; /* Pperand mode. */ +#define OP_REG 0 +#define OP_EXP 1 +#ifndef DASM_SECTION + expressionS exp; +#endif +}; + +#define BYTE_OPERATION (1 << 6) /* Byte operation flag for all instructions. */ + +struct msp430_opcode_s +{ + char *name; + int fmt; + int insn_opnumb; + int bin_opcode; + int bin_mask; +}; + +#define MSP_INSN(name, size, numb, bin, mask) { #name, size, 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), + + /* End of instruction set. */ + { NULL, 0, 0, 0, 0 } +}; + +/* GCC uses the some condition codes which we'll + implement as new polymorph instructions. + + COND EXPL SHORT JUMP LONG JUMP + =============================================== + eq == jeq jne +4; br lab + ne != jne jeq +4; br lab + + ltn honours no-overflow flag + ltn < jn jn +2; jmp +4; br lab + + lt < jl jge +4; br lab + ltu < jlo lhs +4; br lab + le <= see below + leu <= see below + + gt > see below + gtu > see below + ge >= jge jl +4; br lab + geu >= jhs jlo +4; br lab + =============================================== + + Therefore, new opcodes are (BranchEQ -> beq; and so on...) + beq,bne,blt,bltn,bltu,bge,bgeu + 'u' means unsigned compares + + Also, we add 'jump' instruction: + jump UNCOND -> jmp br lab + + They will have fmt == 4, and insn_opnumb == number of instruction. */ + +struct rcodes_s +{ + char * name; + int index; /* Corresponding insn_opnumb. */ + int sop; /* Opcode if jump length is short. */ + long lpos; /* Label position. */ + long lop0; /* Opcode 1 _word_ (16 bits). */ + long lop1; /* Opcode second word. */ + long lop2; /* Opcode third word. */ +}; + +#define MSP430_RLC(n,i,sop,o1) \ + {#n, i, sop, 2, (o1 + 2), 0x4010, 0} + +static struct rcodes_s msp430_rcodes[] = +{ + MSP430_RLC (beq, 0, 0x2400, 0x2000), + MSP430_RLC (bne, 1, 0x2000, 0x2400), + MSP430_RLC (blt, 2, 0x3800, 0x3400), + MSP430_RLC (bltu, 3, 0x2800, 0x2c00), + MSP430_RLC (bge, 4, 0x3400, 0x3800), + MSP430_RLC (bgeu, 5, 0x2c00, 0x2800), + {"bltn", 6, 0x3000, 3, 0x3000 + 1, 0x3c00 + 2,0x4010}, + {"jump", 7, 0x3c00, 1, 0x4010, 0, 0}, + {0,0,0,0,0,0,0} +}; +#undef MSP430_RLC + + +/* More difficult than above and they have format 5. + + COND EXPL SHORT LONG + ================================================================= + gt > jeq +2; jge label jeq +6; jl +4; br label + gtu > jeq +2; jhs label jeq +6; jlo +4; br label + leu <= jeq label; jlo label jeq +2; jhs +4; br label + le <= jeq label; jl label jeq +2; jge +4; br label + ================================================================= */ + +struct hcodes_s +{ + char * name; + int index; /* Corresponding insn_opnumb. */ + int tlab; /* Number of labels in short mode. */ + int op0; /* Opcode for first word of short jump. */ + int op1; /* Opcode for second word of short jump. */ + int lop0; /* Opcodes for long jump mode. */ + int lop1; + int lop2; +}; + +static struct hcodes_s msp430_hcodes[] = +{ + {"bgt", 0, 1, 0x2401, 0x3400, 0x2403, 0x3802, 0x4010 }, + {"bgtu", 1, 1, 0x2401, 0x2c00, 0x2403, 0x2802, 0x4010 }, + {"bleu", 2, 2, 0x2400, 0x2800, 0x2401, 0x2c02, 0x4010 }, + {"ble", 3, 2, 0x2400, 0x3800, 0x2401, 0x3402, 0x4010 }, + {0,0,0,0,0,0,0,0} +}; + +#endif |