diff options
Diffstat (limited to 'opcodes/avr-dis.c')
-rw-r--r-- | opcodes/avr-dis.c | 540 |
1 files changed, 0 insertions, 540 deletions
diff --git a/opcodes/avr-dis.c b/opcodes/avr-dis.c deleted file mode 100644 index 78766869ffa..00000000000 --- a/opcodes/avr-dis.c +++ /dev/null @@ -1,540 +0,0 @@ -/* Disassemble AVR instructions. - Copyright (C) 1999, 2000 Free Software Foundation, Inc. - - Contributed by Denis Chertykov <denisc@overta.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 of the License, 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. */ - - -#include "dis-asm.h" -#include "opintl.h" - -typedef unsigned char u8; -typedef unsigned short u16; -typedef unsigned long u32; - -#define IFMASK(a,b) ((opcode & (a)) == (b)) - -static char* SREG_flags = "CZNVSHTI"; -static char* sect94[] = {"COM","NEG","SWAP","INC","NULL","ASR","LSR","ROR", - 0,0,"DEC",0,0,0,0,0}; -static char* sect98[] = {"CBI","SBIC","SBI","SBIS"}; -static char* branchs[] = { - "BRCS","BREQ","BRMI","BRVS", - "BRLT","BRHS","BRTS","BRIE", - "BRCC","BRNE","BRPL","BRVC", - "BRGE","BRHC","BRTC","BRID" -}; - -static char* last4[] = {"BLD","BST","SBRC","SBRS"}; - - -static void dispLDD PARAMS ((u16, char *)); - -static void -dispLDD (opcode, dest) - u16 opcode; - char *dest; -{ - opcode = (((opcode & 0x2000) >> 8) | ((opcode & 0x0c00) >> 7) - | (opcode & 7)); - sprintf(dest, "%d", opcode); -} - - -static void regPP PARAMS ((u16, char *)); - -static void -regPP (opcode, dest) - u16 opcode; - char *dest; -{ - opcode = ((opcode & 0x0600) >> 5) | (opcode & 0xf); - sprintf(dest, "0x%02X", opcode); -} - - -static void reg50 PARAMS ((u16, char *)); - -static void -reg50 (opcode, dest) - u16 opcode; - char *dest; -{ - opcode = (opcode & 0x01f0) >> 4; - sprintf(dest, "R%d", opcode); -} - - -static void reg104 PARAMS ((u16, char *)); - -static void -reg104 (opcode, dest) - u16 opcode; - char *dest; -{ - opcode = (opcode & 0xf) | ((opcode & 0x0200) >> 5); - sprintf(dest, "R%d", opcode); -} - - -static void reg40 PARAMS ((u16, char *)); - -static void -reg40 (opcode, dest) - u16 opcode; - char *dest; -{ - opcode = (opcode & 0xf0) >> 4; - sprintf(dest, "R%d", opcode + 16); -} - - -static void reg20w PARAMS ((u16, char *)); - -static void -reg20w (opcode, dest) - u16 opcode; - char *dest; -{ - opcode = (opcode & 0x30) >> 4; - sprintf(dest, "R%d", 24 + opcode * 2); -} - - -static void lit404 PARAMS ((u16, char *)); - -static void -lit404 (opcode, dest) - u16 opcode; - char *dest; -{ - opcode = ((opcode & 0xf00) >> 4) | (opcode & 0xf); - sprintf(dest, "0x%02X", opcode); -} - - -static void lit204 PARAMS ((u16, char *)); - -static void -lit204 (opcode, dest) - u16 opcode; - char *dest; -{ - opcode = ((opcode & 0xc0) >> 2) | (opcode & 0xf); - sprintf(dest, "0x%02X", opcode); -} - - -static void add0fff PARAMS ((u16, char *, int)); - -static void -add0fff (op, dest, pc) - u16 op; - char *dest; - int pc; -{ - int rel_addr = (((op & 0xfff) ^ 0x800) - 0x800) * 2; - sprintf(dest, ".%+-8d ; 0x%06X", rel_addr, pc + 2 + rel_addr); -} - - -static void add03f8 PARAMS ((u16, char *, int)); - -static void -add03f8 (op, dest, pc) - u16 op; - char *dest; - int pc; -{ - int rel_addr = ((((op >> 3) & 0x7f) ^ 0x40) - 0x40) * 2; - sprintf(dest, ".%+-8d ; 0x%06X", rel_addr, pc + 2 + rel_addr); -} - - -static u16 avrdis_opcode PARAMS ((bfd_vma, disassemble_info *)); - -static u16 -avrdis_opcode (addr, info) - bfd_vma addr; - disassemble_info *info; -{ - bfd_byte buffer[2]; - int status; - status = info->read_memory_func(addr, buffer, 2, info); - if (status != 0) - { - info->memory_error_func(status, addr, info); - return -1; - } - return bfd_getl16 (buffer); -} - - -int -print_insn_avr(addr, info) - bfd_vma addr; - disassemble_info *info; -{ - char rr[200]; - char rd[200]; - u16 opcode; - void *stream = info->stream; - fprintf_ftype prin = info->fprintf_func; - int cmd_len = 2; - - opcode = avrdis_opcode (addr, info); - - if (IFMASK(0xd000, 0x8000)) - { - char letter; - reg50(opcode, rd); - dispLDD(opcode, rr); - if (opcode & 8) - letter = 'Y'; - else - letter = 'Z'; - if (opcode & 0x0200) - (*prin) (stream, " STD %c+%s,%s", letter, rr, rd); - else - (*prin) (stream, " LDD %s,%c+%s", rd, letter, rr); - } - else - { - switch (opcode & 0xf000) - { - case 0x0000: - { - reg50(opcode, rd); - reg104(opcode, rr); - switch (opcode & 0x0c00) - { - case 0x0000: - (*prin) (stream, " NOP"); - break; - case 0x0400: - (*prin) (stream, " CPC %s,%s", rd, rr); - break; - case 0x0800: - (*prin) (stream, " SBC %s,%s", rd, rr); - break; - case 0x0c00: - (*prin) (stream, " ADD %s,%s", rd, rr); - break; - } - } - break; - case 0x1000: - { - reg50(opcode, rd); - reg104(opcode, rr); - switch (opcode & 0x0c00) - { - case 0x0000: - (*prin) (stream, " CPSE %s,%s", rd, rr); - break; - case 0x0400: - (*prin) (stream, " CP %s,%s", rd, rr); - break; - case 0x0800: - (*prin) (stream, " SUB %s,%s", rd, rr); - break; - case 0x0c00: - (*prin) (stream, " ADC %s,%s", rd, rr); - break; - } - } - break; - case 0x2000: - { - reg50(opcode, rd); - reg104(opcode, rr); - switch (opcode & 0x0c00) - { - case 0x0000: - (*prin) (stream, " AND %s,%s", rd, rr); - break; - case 0x0400: - (*prin) (stream, " EOR %s,%s", rd, rr); - break; - case 0x0800: - (*prin) (stream, " OR %s,%s", rd, rr); - break; - case 0x0c00: - (*prin) (stream, " MOV %s,%s", rd, rr); - break; - } - } - break; - case 0x3000: - { - reg40(opcode, rd); - lit404(opcode, rr); - (*prin) (stream, " CPI %s,%s", rd, rr); - } - break; - case 0x4000: - { - reg40(opcode, rd); - lit404(opcode, rr); - (*prin) (stream, " SBCI %s,%s", rd, rr); - } - break; - case 0x5000: - { - reg40(opcode, rd); - lit404(opcode, rr); - (*prin) (stream, " SUBI %s,%s", rd, rr); - } - break; - case 0x6000: - { - reg40(opcode, rd); - lit404(opcode, rr); - (*prin) (stream, " ORI %s,%s", rd, rr); - } - break; - case 0x7000: - { - reg40(opcode, rd); - lit404(opcode, rr); - (*prin) (stream, " ANDI %s,%s", rd, rr); - } - break; - case 0x9000: - { - switch (opcode & 0x0e00) - { - case 0x0000: - { - reg50(opcode, rd); - switch (opcode & 0xf) - { - case 0x0: - { - (*prin) (stream, " LDS %s,0x%04X", rd, - avrdis_opcode(addr + 2, info)); - cmd_len = 4; - } - break; - case 0x1: - (*prin) (stream, " LD %s,Z+", rd); - break; - case 0x2: - (*prin) (stream, " LD %s,-Z", rd); - break; - case 0x9: - (*prin) (stream, " LD %s,Y+", rd); - break; - case 0xa: - (*prin) (stream, " LD %s,-Y", rd); - break; - case 0xc: - (*prin) (stream, " LD %s,X", rd); - break; - case 0xd: - (*prin) (stream, " LD %s,X+", rd); - break; - case 0xe: - (*prin) (stream, " LD %s,-X", rd); - break; - case 0xf: - (*prin) (stream, " POP %s", rd); - break; - default: - (*prin) (stream, " ????"); - break; - } - } - break; - case 0x0200: - { - reg50(opcode, rd); - switch (opcode & 0xf) - { - case 0x0: - { - (*prin) (stream, " STS 0x%04X,%s", - avrdis_opcode(addr + 2, info), rd); - cmd_len = 4; - } - break; - case 0x1: - (*prin) (stream, " ST Z+,%s", rd); - break; - case 0x2: - (*prin) (stream, " ST -Z,%s", rd); - break; - case 0x9: - (*prin) (stream, " ST Y+,%s", rd); - break; - case 0xa: - (*prin) (stream, " ST -Y,%s", rd); - break; - case 0xc: - (*prin) (stream, " ST X,%s", rd); - break; - case 0xd: - (*prin) (stream, " ST X+,%s", rd); - break; - case 0xe: - (*prin) (stream, " ST -X,%s", rd); - break; - case 0xf: - (*prin) (stream, " PUSH %s", rd); - break; - default: - (*prin) (stream, " ????"); - break; - } - } - break; - case 0x0400: - { - if (IFMASK(0x020c, 0x000c)) - { - u32 k = ((opcode & 0x01f0) >> 3) | (opcode & 1); - k = (k << 16) | avrdis_opcode(addr + 2, info); - if (opcode & 0x0002) - (*prin) (stream, " CALL 0x%06X", k*2); - else - (*prin) (stream, " JMP 0x%06X", k*2); - cmd_len = 4; - } - else if (IFMASK(0x010f, 0x0008)) - { - int sf = (opcode & 0x70) >> 4; - if (opcode & 0x0080) - (*prin) (stream, " CL%c", SREG_flags[sf]); - else - (*prin) (stream, " SE%c", SREG_flags[sf]); - } - else if (IFMASK(0x000f, 0x0009)) - { - if (opcode & 0x0100) - (*prin) (stream, " ICALL"); - else - (*prin) (stream, " IJMP"); - } - else if (IFMASK(0x010f, 0x0108)) - { - if (IFMASK(0x0090, 0x0000)) - (*prin) (stream, " RET"); - else if (IFMASK(0x0090, 0x0010)) - (*prin) (stream, " RETI"); - else if (IFMASK(0x00e0, 0x0080)) - (*prin) (stream, " SLEEP"); - else if (IFMASK(0x00e0, 0x00a0)) - (*prin) (stream, " WDR"); - else if (IFMASK(0x00f0, 0x00c0)) - (*prin) (stream, " LPM"); - else if (IFMASK(0x00f0, 0x00d0)) - (*prin) (stream, " ELPM"); - else - (*prin) (stream, " ????"); - } - else - { - const char* p; - reg50(opcode, rd); - p = sect94[opcode & 0xf]; - if (!p) - p = "????"; - (*prin) (stream, " %-8s%s", p, rd); - } - } - break; - case 0x0600: - { - if (opcode & 0x0200) - { - lit204(opcode, rd); - reg20w(opcode, rr); - if (opcode & 0x0100) - (*prin) (stream, " SBIW %s,%s", rr, rd); - else - (*prin) (stream, " ADIW %s,%s", rr, rd); - } - } - break; - case 0x0800: - case 0x0a00: - { - (*prin) (stream, " %-8s0x%02X,%d", - sect98[(opcode & 0x0300) >> 8], - (opcode & 0xf8) >> 3, - opcode & 7); - } - break; - default: - { - reg50(opcode, rd); - reg104(opcode, rr); - (*prin) (stream, " MUL %s,%s", rd, rr); - } - } - } - break; - case 0xb000: - { - reg50(opcode, rd); - regPP(opcode, rr); - if (opcode & 0x0800) - (*prin) (stream, " OUT %s,%s", rr, rd); - else - (*prin) (stream, " IN %s,%s", rd, rr); - } - break; - case 0xc000: - { - add0fff(opcode, rd, addr); - (*prin) (stream, " RJMP %s", rd); - } - break; - case 0xd000: - { - add0fff(opcode, rd, addr); - (*prin) (stream, " RCALL %s", rd); - } - break; - case 0xe000: - { - reg40(opcode, rd); - lit404(opcode, rr); - (*prin) (stream, " LDI %s,%s", rd, rr); - } - break; - case 0xf000: - { - if (opcode & 0x0800) - { - reg50(opcode, rd); - (*prin) (stream, " %-8s%s,%d", - last4[(opcode & 0x0600) >> 9], - rd, opcode & 7); - } - else - { - char* p; - add03f8(opcode, rd, addr); - p = branchs[((opcode & 0x0400) >> 7) | (opcode & 7)]; - (*prin) (stream, " %-8s%s", p, rd); - } - } - break; - } - } - return cmd_len; -} |