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author | K. Richard Pixley <rich@cygnus> | 1992-02-13 08:33:54 +0000 |
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committer | K. Richard Pixley <rich@cygnus> | 1992-02-13 08:33:54 +0000 |
commit | a39116f1c91d3642c068d9df871338cca9006be2 (patch) | |
tree | dbd53d94ef859ca6425ef5370573030d4766161b /gas/config/tc-h8300.c | |
parent | 77806c3e79cc6ebd5ab62ce46f7cdeecad50ca52 (diff) | |
download | gdb-a39116f1c91d3642c068d9df871338cca9006be2.zip gdb-a39116f1c91d3642c068d9df871338cca9006be2.tar.gz gdb-a39116f1c91d3642c068d9df871338cca9006be2.tar.bz2 |
White space and comments only. The devo tree prior to this delta is
tagged as "vanilla" for your convenience.
There are also some comment changes.
Diffstat (limited to 'gas/config/tc-h8300.c')
-rw-r--r-- | gas/config/tc-h8300.c | 3111 |
1 files changed, 989 insertions, 2122 deletions
diff --git a/gas/config/tc-h8300.c b/gas/config/tc-h8300.c index 6f2e2ff..6533893 100644 --- a/gas/config/tc-h8300.c +++ b/gas/config/tc-h8300.c @@ -1,27 +1,27 @@ -/* tc-h8300.c -- Assemble code for the Hitachi h8/300 +/* tc-h8300.c -- Assemble code for the Hitachi H8/300 Copyright (C) 1991 Free Software Foundation. - -This file is part of GAS, the GNU Assembler. - -GAS 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. - -GAS 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 GAS; see the file COPYING. If not, write to -the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */ + + This file is part of GAS, the GNU Assembler. + + GAS 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. + + GAS 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 GAS; see the file COPYING. If not, write to + the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */ /* Written By Steve Chamberlain sac@cygnus.com - */ + */ #include <stdio.h> #include "as.h" @@ -38,23 +38,23 @@ char line_separator_chars[] = { '$' ,0}; pseudo-op name without dot function to call to execute this pseudo-op Integer arg to pass to the function - */ + */ void cons(); const pseudo_typeS md_pseudo_table[] = { - { "int", cons, 2 }, - { 0,0,0 } + { "int", cons, 2 }, + { 0,0,0 } }; int md_reloc_size ; - + const char EXP_CHARS[] = "eE"; /* Chars that mean this number is a floating point constant */ /* As in 0f12.456 */ /* or 0d1.2345e12 */ - char FLT_CHARS[] = "rRsSfFdDxXpP"; +char FLT_CHARS[] = "rRsSfFdDxXpP"; const relax_typeS md_relax_table[1]; @@ -64,138 +64,138 @@ static struct hash_control *opcode_hash_control; /* Opcode mnemonics */ /* - This function is called once, at assembler startup time. This should - set up all the tables, etc that the MD part of the assembler needs -*/ - + This function is called once, at assembler startup time. This should + set up all the tables, etc that the MD part of the assembler needs + */ +#if 0 /* encode the size and number into the number field xxnnnn 00 8 bit 01 16 bit 10 ccr - nnnnreg number -*/ + nnnnreg number + */ #define WORD_REG 0x10 #define BYTE_REG 0x00 #define CCR_REG 0x20 - struct reg_entry +struct reg_entry { - char *name; - char number; + char *name; + char number; }; struct reg_entry reg_list[] = { -"r0",WORD_REG +0, -"r1",WORD_REG +1, -"r2",WORD_REG +2, -"r3",WORD_REG +3, -"r4",WORD_REG +4, -"r5",WORD_REG +5, -"r6",WORD_REG +6, -"r7",WORD_REG +7, -"fp",WORD_REG +6, -"sp",WORD_REG +7, -"r0h",BYTE_REG + 0, -"r0l",BYTE_REG + 1, -"r1h",BYTE_REG + 2, -"r1l",BYTE_REG + 3, -"r2h",BYTE_REG + 4, -"r2l",BYTE_REG + 5, -"r3h",BYTE_REG + 6, -"r3l",BYTE_REG + 7, -"r4h",BYTE_REG + 8, -"r4l",BYTE_REG + 9, -"r5h",BYTE_REG + 10, -"r5l",BYTE_REG + 11, -"r6h",BYTE_REG + 12, -"r6l",BYTE_REG + 13, -"r7h",BYTE_REG + 14, -"r7l",BYTE_REG + 15, -"ccr",CCR_REG, -0,0 -} + "r0",WORD_REG +0, + "r1",WORD_REG +1, + "r2",WORD_REG +2, + "r3",WORD_REG +3, + "r4",WORD_REG +4, + "r5",WORD_REG +5, + "r6",WORD_REG +6, + "r7",WORD_REG +7, + "fp",WORD_REG +6, + "sp",WORD_REG +7, + "r0h",BYTE_REG + 0, + "r0l",BYTE_REG + 1, + "r1h",BYTE_REG + 2, + "r1l",BYTE_REG + 3, + "r2h",BYTE_REG + 4, + "r2l",BYTE_REG + 5, + "r3h",BYTE_REG + 6, + "r3l",BYTE_REG + 7, + "r4h",BYTE_REG + 8, + "r4l",BYTE_REG + 9, + "r5h",BYTE_REG + 10, + "r5l",BYTE_REG + 11, + "r6h",BYTE_REG + 12, + "r6l",BYTE_REG + 13, + "r7h",BYTE_REG + 14, + "r7l",BYTE_REG + 15, + "ccr",CCR_REG, + 0,0 + } ; - +#endif void md_begin () { - struct h8_opcode *opcode; - const struct reg_entry *reg; - char prev_buffer[100]; - int idx = 0; - - opcode_hash_control = hash_new(); - prev_buffer[0] = 0; - - for (opcode = h8_opcodes; opcode->name; opcode++) - { - /* Strip off any . part when inserting the opcode and only enter - unique codes into the hash table - */ - char *src= opcode->name; - unsigned int len = strlen(src); - char *dst = malloc(len+1); - char *buffer = dst; - opcode->size = 0; - while (*src) { - if (*src == '.') { - *dst++ = 0; - src++; - opcode->size = *src; - break; - } - *dst++ = *src++; - } - if (strcmp(buffer, prev_buffer)) - { - hash_insert(opcode_hash_control, buffer, (char *)opcode); - strcpy(prev_buffer, buffer); - idx++; - } - opcode->idx = idx; - - - /* Find the number of operands */ - opcode->noperands = 0; - while (opcode->args.nib[opcode->noperands] != E) - opcode->noperands ++; - /* Find the length of the opcode in bytes */ - opcode->length =0; - while (opcode->data.nib[opcode->length*2] != E) - opcode->length++; - } - + struct h8_opcode *opcode; + const struct reg_entry *reg; + char prev_buffer[100]; + int idx = 0; + + opcode_hash_control = hash_new(); + prev_buffer[0] = 0; + + for (opcode = h8_opcodes; opcode->name; opcode++) + { + /* Strip off any . part when inserting the opcode and only enter + unique codes into the hash table + */ + char *src= opcode->name; + unsigned int len = strlen(src); + char *dst = malloc(len+1); + char *buffer = dst; + opcode->size = 0; + while (*src) { + if (*src == '.') { + *dst++ = 0; + src++; + opcode->size = *src; + break; + } + *dst++ = *src++; + } + if (strcmp(buffer, prev_buffer)) + { + hash_insert(opcode_hash_control, buffer, (char *)opcode); + strcpy(prev_buffer, buffer); + idx++; + } + opcode->idx = idx; + + + /* Find the number of operands */ + opcode->noperands = 0; + while (opcode->args.nib[opcode->noperands] != E) + opcode->noperands ++; + /* Find the length of the opcode in bytes */ + opcode->length =0; + while (opcode->data.nib[opcode->length*2] != E) + opcode->length++; + } + } struct h8_exp { - char *e_beg; - char *e_end; - expressionS e_exp; + char *e_beg; + char *e_end; + expressionS e_exp; }; struct h8_op { - unsigned int dispreg; - op_type mode; - unsigned reg; - expressionS exp; + unsigned int dispreg; + op_type mode; + unsigned reg; + expressionS exp; }; /* - parse operands - WREG r0,r1,r2,r3,r4,r5,r6,r7,fp,sp - r0l,r0h,..r7l,r7h - @WREG - @WREG+ - @-WREG - #const - -*/ + parse operands + WREG r0,r1,r2,r3,r4,r5,r6,r7,fp,sp + r0l,r0h,..r7l,r7h + @WREG + @WREG+ + @-WREG + #const + + */ op_type r8_sord[] = {RS8, RD8}; op_type r16_sord[] = {RS16, RD16}; @@ -205,2006 +205,873 @@ op_type disp_sord[] = {DISPSRC, DISPDST}; /* try and parse a reg name, returns number of chars consumed */ int -DEFUN(parse_reg,(src, mode, reg, dst), - char *src AND - op_type *mode AND - unsigned int *reg AND - int dst) + DEFUN(parse_reg,(src, mode, reg, dst), + char *src AND + op_type *mode AND + unsigned int *reg AND + int dst) { - if (src[0] == 's' && src[1] == 'p') - { - *mode = r16_sord[dst]; - *reg = 7; - return 2; - } - if (src[0] == 'c' && src[1] == 'c' && src[2] == 'r') - { - *mode = CCR; - *reg = 0; - return 3; - } - if (src[0] == 'f' && src[1] == 'p') - { - *mode = r16_sord[dst]; - *reg = 6; - return 2; - } - if (src[0] == 'r') - { - if (src[1] >= '0' && src[1] <= '7') - { - if(src[2] == 'l') + if (src[0] == 's' && src[1] == 'p') { - *mode = r8_sord[dst]; - *reg = (src[1] - '0') + 8; - return 3; + *mode = r16_sord[dst]; + *reg = 7; + return 2; } - if(src[2] == 'h') + if (src[0] == 'c' && src[1] == 'c' && src[2] == 'r') { - *mode = r8_sord[dst]; - *reg = (src[1] - '0') ; - return 3; + *mode = CCR; + *reg = 0; + return 3; } - *mode = r16_sord[dst]; - *reg = (src[1] - '0'); - return 2; - } - } - return 0; + if (src[0] == 'f' && src[1] == 'p') + { + *mode = r16_sord[dst]; + *reg = 6; + return 2; + } + if (src[0] == 'r') + { + if (src[1] >= '0' && src[1] <= '7') + { + if(src[2] == 'l') + { + *mode = r8_sord[dst]; + *reg = (src[1] - '0') + 8; + return 3; + } + if(src[2] == 'h') + { + *mode = r8_sord[dst]; + *reg = (src[1] - '0') ; + return 3; + } + *mode = r16_sord[dst]; + *reg = (src[1] - '0'); + return 2; + } + } + return 0; } char * -DEFUN(parse_exp,(s, op), - char *s AND - expressionS *op) + DEFUN(parse_exp,(s, op), + char *s AND + expressionS *op) { - char *save = input_line_pointer; - char *new; - segT seg; - input_line_pointer = s; - seg = expr(0,op); - new = input_line_pointer; - input_line_pointer = save; - if (SEG_NORMAL(seg)) - return new; - switch (seg) { - case SEG_ABSOLUTE: - case SEG_UNKNOWN: - case SEG_DIFFERENCE: - case SEG_BIG: - case SEG_REGISTER: - return new; - case SEG_ABSENT: - as_bad("Missing operand"); - return new; - default: - as_bad("Don't understand operand of type %s", segment_name (seg)); - return new; - } + char *save = input_line_pointer; + char *new; + segT seg; + input_line_pointer = s; + seg = expr(0,op); + new = input_line_pointer; + input_line_pointer = save; + if (SEG_NORMAL(seg)) + return new; + switch (seg) { + case SEG_ABSOLUTE: + case SEG_UNKNOWN: + case SEG_DIFFERENCE: + case SEG_BIG: + case SEG_REGISTER: + return new; + case SEG_ABSENT: + as_bad("Missing operand"); + return new; + default: + as_bad("Don't understand operand of type %s", segment_name (seg)); + return new; + } } static char * -DEFUN(skip_colonthing,(ptr), - char *ptr) + DEFUN(skip_colonthing,(ptr), + char *ptr) { - if (*ptr == ':') { - ptr++; - while (isdigit(*ptr)) - ptr++; - + if (*ptr == ':') { + ptr++; + while (isdigit(*ptr)) + ptr++; + } - return ptr; + return ptr; } /* The many forms of operand: - Rn Register direct - @Rn Register indirect - @(exp[:16], Rn) Register indirect with displacement - @Rn+ - @-Rn - @aa:8 absolute 8 bit - @aa:16 absolute 16 bit - @aa absolute 16 bit - - #xx[:size] immediate data - @(exp:[8], pc) pc rel - @@aa[:8] memory indirect - -*/ + Rn Register direct + @Rn Register indirect + @(exp[:16], Rn) Register indirect with displacement + @Rn+ + @-Rn + @aa:8 absolute 8 bit + @aa:16 absolute 16 bit + @aa absolute 16 bit + + #xx[:size] immediate data + @(exp:[8], pc) pc rel + @@aa[:8] memory indirect + + */ static void -DEFUN(get_operand,(ptr, op, dst), - char **ptr AND - struct h8_op *op AND - unsigned int dst) + DEFUN(get_operand,(ptr, op, dst), + char **ptr AND + struct h8_op *op AND + unsigned int dst) { - char *src = *ptr; - op_type mode; - unsigned int num; - unsigned int len; - unsigned int size; - op->mode = E; - - len = parse_reg(src, &op->mode, &op->reg, dst); - if (len) { - *ptr = src + len; - return ; - } - - if (*src == '@') - { - src++; - if (*src == '@') - { - src++; - src = parse_exp(src,&op->exp); - src = skip_colonthing(src); - - *ptr = src; - - op->mode = MEMIND; - return; - - } + char *src = *ptr; + op_type mode; + unsigned int num; + unsigned int len; + unsigned int size; + op->mode = E; - - if (*src == '-') - { - src++; - len = parse_reg(src, &mode, &num, dst); - if (len == 0 || mode != r16_sord[dst]) - { - as_bad("@- needs word register"); - } - op->mode = RDDEC; - op->reg = num; - *ptr = src + len; - return; - } - if (*src == '(' && ')') - { - /* Disp */ - src++; - src = parse_exp(src, &op->exp); - - if (*src == ')') - { - src++; - op->mode = abs_sord[dst]; - *ptr = src; - return; - } - src = skip_colonthing(src); - - if (*src != ',') - { - as_bad("expected @(exp, reg16)"); - } - src++; - len = parse_reg(src, &mode, &op->reg, dst); - if (len == 0 || mode != r16_sord[dst]) - { - as_bad("expected @(exp, reg16)"); - } - op->mode = disp_sord[dst]; - src += len; - src = skip_colonthing(src); - - if (*src != ')' && '(') - { - as_bad("expected @(exp, reg16)"); - - } - *ptr = src +1; - - return; - } - len = parse_reg(src, &mode, &num, dst); - - if(len) { - src += len; - if (*src == '+') - { - src++; - if (mode != RS16) - { - as_bad("@Rn+ needs src word register"); - } - op->mode = RSINC; - op->reg = num; - *ptr = src; - return; + len = parse_reg(src, &op->mode, &op->reg, dst); + if (len) { + *ptr = src + len; + return ; + } + + if (*src == '@') + { + src++; + if (*src == '@') + { + src++; + src = parse_exp(src,&op->exp); + src = skip_colonthing(src); + + *ptr = src; + + op->mode = MEMIND; + return; + + } + + + if (*src == '-') + { + src++; + len = parse_reg(src, &mode, &num, dst); + if (len == 0) + { + /* Oops, not a reg after all, must be ordinary exp */ + src--; + /* must be a symbol */ + op->mode = abs_sord[dst]; + *ptr = skip_colonthing(parse_exp(src, &op->exp)); + + return; + + + } + + if (mode != r16_sord[dst]) + { + as_bad("@- needs word register"); + } + op->mode = RDDEC; + op->reg = num; + *ptr = src + len; + return; + } + if (*src == '(' && ')') + { + /* Disp */ + src++; + src = parse_exp(src, &op->exp); + + if (*src == ')') + { + src++; + op->mode = abs_sord[dst]; + *ptr = src; + return; + } + src = skip_colonthing(src); + + if (*src != ',') + { + as_bad("expected @(exp, reg16)"); + } + src++; + len = parse_reg(src, &mode, &op->reg, dst); + if (len == 0 || mode != r16_sord[dst]) + { + as_bad("expected @(exp, reg16)"); + } + op->mode = disp_sord[dst]; + src += len; + src = skip_colonthing(src); + + if (*src != ')' && '(') + { + as_bad("expected @(exp, reg16)"); + + } + *ptr = src +1; + + return; + } + len = parse_reg(src, &mode, &num, dst); + + if(len) { + src += len; + if (*src == '+') + { + src++; + if (mode != RS16) + { + as_bad("@Rn+ needs src word register"); + } + op->mode = RSINC; + op->reg = num; + *ptr = src; + return; + } + if (mode != r16_sord[dst]) + { + as_bad("@Rn needs word register"); + } + op->mode =rind_sord[dst]; + op->reg = num; + *ptr = src; + return; + } + else + { + /* must be a symbol */ + op->mode = abs_sord[dst]; + *ptr = skip_colonthing(parse_exp(src, &op->exp)); + + return; + } + } + + + if (*src == '#') { + src++; + op->mode = IMM16; + src = parse_exp(src, &op->exp); + *ptr= skip_colonthing(src); + + return; } - if (mode != r16_sord[dst]) - { - as_bad("@Rn needs word register"); + else { + *ptr = parse_exp(src, &op->exp); + op->mode = DISP8; } - op->mode =rind_sord[dst]; - op->reg = num; - *ptr = src; - return; - } - else - { - /* must be a symbol */ - op->mode = abs_sord[dst]; - *ptr = skip_colonthing(parse_exp(src, &op->exp)); - - return; - } - } - - - if (*src == '#') { - src++; - op->mode = IMM16; - src = parse_exp(src, &op->exp); - *ptr= skip_colonthing(src); - - return; - } - else { - *ptr = parse_exp(src, &op->exp); - op->mode = DISP8; - } } static -char * -DEFUN(get_operands,(noperands,op_end, operand), - unsigned int noperands AND - char *op_end AND - struct h8_op *operand) + char * + DEFUN(get_operands,(noperands,op_end, operand), + unsigned int noperands AND + char *op_end AND + struct h8_op *operand) { - char *ptr = op_end; - switch (noperands) - { - case 0: - operand[0].mode = 0; - operand[1].mode = 0; - break; - - case 1: - ptr++; - get_operand(& ptr, operand +0,0); - operand[1].mode =0; - break; - - case 2: - ptr++; - get_operand(& ptr, operand +0,0); - if (*ptr == ',') ptr++; - get_operand(& ptr, operand +1, 1); - break; - - default: - abort(); - } - - - return ptr; + char *ptr = op_end; + switch (noperands) + { + case 0: + operand[0].mode = 0; + operand[1].mode = 0; + break; + + case 1: + ptr++; + get_operand(& ptr, operand +0,0); + operand[1].mode =0; + break; + + case 2: + ptr++; + get_operand(& ptr, operand +0,0); + if (*ptr == ',') ptr++; + get_operand(& ptr, operand +1, 1); + break; + + default: + abort(); + } + + + return ptr; } /* Passed a pointer to a list of opcodes which use different addressing modes, return the opcode which matches the opcodes provided - */ + */ static -struct h8_opcode * -DEFUN(get_specific,(opcode, operands), - struct h8_opcode *opcode AND - struct h8_op *operands) + struct h8_opcode * + DEFUN(get_specific,(opcode, operands), + struct h8_opcode *opcode AND + struct h8_op *operands) { - struct h8_opcode *this_try = opcode ; - int found = 0; - unsigned int noperands = opcode->noperands; - - unsigned int dispreg; - unsigned int this_index = opcode->idx; - while (this_index == opcode->idx && !found) - { - unsigned int i; - - this_try = opcode ++; - for (i = 0; i < noperands; i++) - { - op_type op = (this_try->args.nib[i]) & ~(B30|B31); - switch (op) - { - case Hex0: - case Hex1: - case Hex2: - case Hex3: - case Hex4: - case Hex5: - case Hex6: - case Hex7: - case Hex8: - case Hex9: - case HexA: - case HexB: - case HexC: - case HexD: - case HexE: - case HexF: - break; - case DISPSRC: - case DISPDST: - operands[0].dispreg = operands[i].reg; - case RD8: - case RS8: - case RDIND: - case RSIND: - case RD16: - case RS16: - case CCR: - case RSINC: - case RDDEC: - if (operands[i].mode != op) goto fail; - break; - case KBIT: - case IMM16: - case IMM3: - case IMM8: - if (operands[i].mode != IMM16) goto fail; - break; - case MEMIND: - if (operands[i].mode != MEMIND) goto fail; - break; - case ABS16SRC: - case ABS8SRC: - case ABS16OR8SRC: - case ABS16ORREL8SRC: - - if (operands[i].mode != ABS16SRC) goto fail; - break; - case ABS16OR8DST: - case ABS16DST: - case ABS8DST: - if (operands[i].mode != ABS16DST) goto fail; - break; - } - } - found =1; - fail: ; - } - if (found) - return this_try; - else - return 0; + struct h8_opcode *this_try = opcode ; + int found = 0; + unsigned int noperands = opcode->noperands; + + unsigned int dispreg; + unsigned int this_index = opcode->idx; + while (this_index == opcode->idx && !found) + { + unsigned int i; + + this_try = opcode ++; + for (i = 0; i < noperands; i++) + { + op_type op = (this_try->args.nib[i]) & ~(B30|B31); + switch (op) + { + case Hex0: + case Hex1: + case Hex2: + case Hex3: + case Hex4: + case Hex5: + case Hex6: + case Hex7: + case Hex8: + case Hex9: + case HexA: + case HexB: + case HexC: + case HexD: + case HexE: + case HexF: + break; + case DISPSRC: + case DISPDST: + operands[0].dispreg = operands[i].reg; + case RD8: + case RS8: + case RDIND: + case RSIND: + case RD16: + case RS16: + case CCR: + case RSINC: + case RDDEC: + if (operands[i].mode != op) goto fail; + break; + case KBIT: + case IMM16: + case IMM3: + case IMM8: + if (operands[i].mode != IMM16) goto fail; + break; + case MEMIND: + if (operands[i].mode != MEMIND) goto fail; + break; + case ABS16SRC: + case ABS8SRC: + case ABS16OR8SRC: + case ABS16ORREL8SRC: + + if (operands[i].mode != ABS16SRC) goto fail; + break; + case ABS16OR8DST: + case ABS16DST: + case ABS8DST: + if (operands[i].mode != ABS16DST) goto fail; + break; + } + } + found =1; + fail: ; + } + if (found) + return this_try; + else + return 0; } static void -DEFUN(check_operand,(operand, width, string), - struct h8_op *operand AND - unsigned int width AND - char *string) + DEFUN(check_operand,(operand, width, string), + struct h8_op *operand AND + unsigned int width AND + char *string) { - if (operand->exp.X_add_symbol == 0 - && operand->exp.X_subtract_symbol == 0) - { - - /* No symbol involved, let's look at offset, it's dangerous if any of - the high bits are not 0 or ff's, find out by oring or anding with - the width and seeing if the answer is 0 or all fs*/ - if ((operand->exp.X_add_number | width) != ~0 && - (operand->exp.X_add_number & ~width)!= 0) - { - as_warn("operand %s0x%x out of range.", string, operand->exp.X_add_number); - } - } - + if (operand->exp.X_add_symbol == 0 + && operand->exp.X_subtract_symbol == 0) + { + + /* No symbol involved, let's look at offset, it's dangerous if any of + the high bits are not 0 or ff's, find out by oring or anding with + the width and seeing if the answer is 0 or all fs*/ + if ((operand->exp.X_add_number | width) != ~0 && + (operand->exp.X_add_number & ~width)!= 0) + { + as_warn("operand %s0x%x out of range.", string, operand->exp.X_add_number); + } + } + } /* Now we know what sort of opcodes it is, lets build the bytes - - */ + */ static void -DEFUN (build_bytes,(this_try, operand), - struct h8_opcode *this_try AND - struct h8_op *operand) + DEFUN (build_bytes,(this_try, operand), + struct h8_opcode *this_try AND + struct h8_op *operand) { - unsigned int i; - - char *output = frag_more(this_try->length); - char *output_ptr = output; - op_type *nibble_ptr = this_try->data.nib; - char part; - op_type c; - char high; - int nib; + unsigned int i; + + char *output = frag_more(this_try->length); + char *output_ptr = output; + op_type *nibble_ptr = this_try->data.nib; + char part; + op_type c; + char high; + int nib; top: ; - while (*nibble_ptr != E) - { - int nibble; - for (nibble = 0; nibble <2; nibble++) - { - c = *nibble_ptr & ~(B30|B31); - switch (c) - { - default: - abort(); - case KBIT: - switch (operand[0].exp.X_add_number) - { - case 1: - nib = 0; - break; - case 2: - nib = 8; - break; - default: - as_bad("Need #1 or #2 here"); - break; - } - /* stop it making a fix */ - operand[0].mode = 0; - break; - case 0: - case 1: - case 2: case 3: case 4: case 5: case 6: - case 7: case 8: case 9: case 10: case 11: - case 12: case 13: case 14: case 15: - nib = c; - break; - case DISPREG: - nib = operand[0].dispreg; - break; - case IMM8: - operand[0].mode = IMM8; - nib = 0; - break; - - case DISPDST: - nib = 0; - break; - case IMM3: - if (operand[0].exp.X_add_symbol == 0) { - operand[0].mode = 0; /* stop it making a fix */ - nib = (operand[0].exp.X_add_number); - } - else as_bad("can't have symbol for bit number"); - if (nib < 0 || nib > 7) - { - as_bad("Bit number out of range %d", nib); - } - - break; - - case ABS16DST: - nib = 0; - break; - case ABS8DST: - operand[1].mode = ABS8DST; - nib = 0; - break; - case ABS8SRC: - operand[0].mode = ABS8SRC; - nib = 0; - break; - case ABS16OR8DST: - operand[1].mode = c; - - nib = 0; - - break; - - case ABS16ORREL8SRC: - operand[0].mode = c; - nib=0; - break; - - case ABS16OR8SRC: - operand[0].mode = ABS16OR8SRC; - nib = 0; - break; - case DISPSRC: - operand[0].mode = ABS16SRC; - nib = 0; - break; - - case DISP8: - operand[0].mode = DISP8; - nib = 0; - break; + while (*nibble_ptr != E) + { + int nibble; + for (nibble = 0; nibble <2; nibble++) + { + c = *nibble_ptr & ~(B30|B31); + switch (c) + { + default: + abort(); + case KBIT: + switch (operand[0].exp.X_add_number) + { + case 1: + nib = 0; + break; + case 2: + nib = 8; + break; + default: + as_bad("Need #1 or #2 here"); + break; + } + /* stop it making a fix */ + operand[0].mode = 0; + break; + case 0: + case 1: + case 2: case 3: case 4: case 5: case 6: + case 7: case 8: case 9: case 10: case 11: + case 12: case 13: case 14: case 15: + nib = c; + break; + case DISPREG: + nib = operand[0].dispreg; + break; + case IMM8: + operand[0].mode = IMM8; + nib = 0; + break; + + case DISPDST: + nib = 0; + break; + case IMM3: + if (operand[0].exp.X_add_symbol == 0) { + operand[0].mode = 0; /* stop it making a fix */ + nib = (operand[0].exp.X_add_number); + } + else as_bad("can't have symbol for bit number"); + if (nib < 0 || nib > 7) + { + as_bad("Bit number out of range %d", nib); + } + + break; + + case ABS16DST: + nib = 0; + break; + case ABS8DST: + operand[1].mode = ABS8DST; + nib = 0; + break; + case ABS8SRC: + operand[0].mode = ABS8SRC; + nib = 0; + break; + case ABS16OR8DST: + operand[1].mode = c; + + nib = 0; + + break; + + case ABS16ORREL8SRC: + operand[0].mode = c; + nib=0; + break; + + case ABS16OR8SRC: + operand[0].mode = ABS16OR8SRC; + nib = 0; + break; + case DISPSRC: + operand[0].mode = ABS16SRC; + nib = 0; + break; + + case DISP8: + operand[0].mode = DISP8; + nib = 0; + break; + + case ABS16SRC: + case IMM16: + case IGNORE: + case MEMIND: + + nib=0; + break; + case RS8: + case RS16: + case RSIND: + case RSINC: + nib = operand[0].reg; + break; + + case RD8: + case RD16: + case RDDEC: + case RDIND: + nib = operand[1].reg; + break; + + case E: + abort(); + break; + } + if (*nibble_ptr & B31) { + nib |=0x8; + } + + if (nibble == 0) { + *output_ptr = nib << 4; + } + else { + *output_ptr |= nib; + output_ptr++; + } + nibble_ptr++; + } + + } - case ABS16SRC: - case IMM16: - case IGNORE: - case MEMIND: - - nib=0; - break; - case RS8: - case RS16: - case RSIND: - case RSINC: - nib = operand[0].reg; - break; - - case RD8: - case RD16: - case RDDEC: - case RDIND: - nib = operand[1].reg; - break; - - case E: - abort(); - break; - } - if (*nibble_ptr & B31) { - nib |=0x8; - } - - if (nibble == 0) { - *output_ptr = nib << 4; - } - else { - *output_ptr |= nib; - output_ptr++; - } - nibble_ptr++; - } - - } - - /* output any fixes */ - for (i = 0; i < 2; i++) - { - switch (operand[i].mode) { - case 0: - break; - - case DISP8: - check_operand(operand+i, 0x7f,"@"); - - fix_new(frag_now, - output - frag_now->fr_literal + 1, - 1, - operand[i].exp.X_add_symbol, - operand[i].exp.X_subtract_symbol, - operand[i].exp.X_add_number -1, - 1, - R_PCRBYTE); - break; - case IMM8: - check_operand(operand+i, 0xff,"#"); - /* If there is nothing else going on we can safely - reloc in place */ - if (operand[i].exp.X_add_symbol == 0) - { - output[1] = operand[i].exp.X_add_number; - } - else - { - fix_new(frag_now, - output - frag_now->fr_literal + 1, - 1, - operand[i].exp.X_add_symbol, - operand[i].exp.X_subtract_symbol, - operand[i].exp.X_add_number, - 0, - R_RELBYTE); - } - - break; - case MEMIND: - check_operand(operand+i, 0xff,"@@"); - fix_new(frag_now, - output - frag_now->fr_literal + 1, - 1, - operand[i].exp.X_add_symbol, - operand[i].exp.X_subtract_symbol, - operand[i].exp.X_add_number, - 0, - R_RELBYTE); - break; - case ABS8DST: - case ABS8SRC: - check_operand(operand+i, 0xff,"@"); - fix_new(frag_now, - output - frag_now->fr_literal + 1, - 1, - operand[i].exp.X_add_symbol, - operand[i].exp.X_subtract_symbol, - operand[i].exp.X_add_number, - 0, - R_RELBYTE); - break; - - case ABS16OR8SRC: - case ABS16OR8DST: - check_operand(operand+i, 0xffff,"@"); - - fix_new(frag_now, - output - frag_now->fr_literal + 2, - 2, - operand[i].exp.X_add_symbol, - operand[i].exp.X_subtract_symbol, - operand[i].exp.X_add_number, - 0, - R_MOVB1); - break; - - case ABS16ORREL8SRC: - check_operand(operand+i, 0xffff,"@"); - - fix_new(frag_now, - output - frag_now->fr_literal + 2, - 2, - operand[i].exp.X_add_symbol, - operand[i].exp.X_subtract_symbol, - operand[i].exp.X_add_number, - 0, - R_JMP1); - break; - - - case ABS16SRC: - case ABS16DST: - case IMM16: - case DISPSRC: - case DISPDST: - check_operand(operand+i, 0xffff,"@"); - if (operand[i].exp.X_add_symbol == 0) - { - /* This should be done with bfd */ - output[3] = operand[i].exp.X_add_number & 0xff; - output[2] = operand[i].exp.X_add_number >> 8; - - } - else - { - - fix_new(frag_now, - output - frag_now->fr_literal + 2, - 2, - operand[i].exp.X_add_symbol, - operand[i].exp.X_subtract_symbol, - operand[i].exp.X_add_number, - 0, - R_RELWORD); - } + /* output any fixes */ + for (i = 0; i < 2; i++) + { + switch (operand[i].mode) { + case 0: + break; + + case DISP8: + check_operand(operand+i, 0x7f,"@"); + + fix_new(frag_now, + output - frag_now->fr_literal + 1, + 1, + operand[i].exp.X_add_symbol, + operand[i].exp.X_subtract_symbol, + operand[i].exp.X_add_number -1, + 1, + R_PCRBYTE); + break; + case IMM8: + check_operand(operand+i, 0xff,"#"); + /* If there is nothing else going on we can safely + reloc in place */ + if (operand[i].exp.X_add_symbol == 0) + { + output[1] = operand[i].exp.X_add_number; + } + else + { + fix_new(frag_now, + output - frag_now->fr_literal + 1, + 1, + operand[i].exp.X_add_symbol, + operand[i].exp.X_subtract_symbol, + operand[i].exp.X_add_number, + 0, + R_RELBYTE); + } + + break; + case MEMIND: + check_operand(operand+i, 0xff,"@@"); + fix_new(frag_now, + output - frag_now->fr_literal + 1, + 1, + operand[i].exp.X_add_symbol, + operand[i].exp.X_subtract_symbol, + operand[i].exp.X_add_number, + 0, + R_RELBYTE); + break; + case ABS8DST: + case ABS8SRC: + check_operand(operand+i, 0xff,"@"); + fix_new(frag_now, + output - frag_now->fr_literal + 1, + 1, + operand[i].exp.X_add_symbol, + operand[i].exp.X_subtract_symbol, + operand[i].exp.X_add_number, + 0, + R_RELBYTE); + break; + + case ABS16OR8SRC: + case ABS16OR8DST: + check_operand(operand+i, 0xffff,"@"); + + fix_new(frag_now, + output - frag_now->fr_literal + 2, + 2, + operand[i].exp.X_add_symbol, + operand[i].exp.X_subtract_symbol, + operand[i].exp.X_add_number, + 0, + R_MOVB1); + break; + + case ABS16ORREL8SRC: + check_operand(operand+i, 0xffff,"@"); + + fix_new(frag_now, + output - frag_now->fr_literal + 2, + 2, + operand[i].exp.X_add_symbol, + operand[i].exp.X_subtract_symbol, + operand[i].exp.X_add_number, + 0, + R_JMP1); + break; + + + case ABS16SRC: + case ABS16DST: + case IMM16: + case DISPSRC: + case DISPDST: + check_operand(operand+i, 0xffff,"@"); + if (operand[i].exp.X_add_symbol == 0) + { + /* This should be done with bfd */ + output[3] = operand[i].exp.X_add_number & 0xff; + output[2] = operand[i].exp.X_add_number >> 8; + + } + else + { + + fix_new(frag_now, + output - frag_now->fr_literal + 2, + 2, + operand[i].exp.X_add_symbol, + operand[i].exp.X_subtract_symbol, + operand[i].exp.X_add_number, + 0, + R_RELWORD); + } + + break; + case RS8: + case RD8: + case RS16: + case RD16: + case RDDEC: + case KBIT: + case RSINC: + case RDIND: + case RSIND: + case CCR: + + break; + default: + abort(); + } + } - break; - case RS8: - case RD8: - case RS16: - case RD16: - case RDDEC: - case KBIT: - case RSINC: - case RDIND: - case RSIND: - case CCR: - - break; - default: - abort(); - } - } +} +/* + try and give an intelligent error message for common and simple to + detect errors + */ +static void + DEFUN(clever_message, (opcode, operand), + struct h8_opcode *opcode AND + struct h8_op *operand) +{ + struct h8_opcode *scan = opcode; + + /* Find out if there was more than one possible opccode */ + + if ((opcode+1)->idx != opcode->idx) + { + unsigned int argn; + + /* Only one opcode of this flavour, try and guess which operand + didn't match */ + for (argn = 0; argn < opcode->noperands; argn++) + { + switch (opcode->args.nib[argn]) + { + case RD16: + if (operand[argn].mode != RD16) + { + as_bad("destination operand must be 16 bit register"); + } + return; + case RS8: + + if (operand[argn].mode != RS8) + { + as_bad("source operand must be 8 bit register"); + } + return; + case ABS16DST: + if (operand[argn].mode != ABS16DST) + { + as_bad("destination operand must be 16bit absolute address"); + return; + } + + case RD8: + if (operand[argn].mode != RD8) + { + as_bad("destination operand must be 8 bit register"); + } + return; + + case ABS16SRC: + if (operand[argn].mode != ABS16SRC) + { + as_bad("source operand must be 16bit absolute address"); + return; + } + } + } + } + as_bad("invalid operands"); } + /* This is the guts of the machine-dependent assembler. STR points to a machine dependent instruction. This funciton is supposed to emit the frags/bytes it assembles to. - */ - - -void -DEFUN(md_assemble,(str), - char *str) -{ - char *op_start; - char *op_end; - unsigned int i; - struct h8_op operand[2]; - struct h8_opcode * opcode; - char *dot = 0; - char c; - /* Drop leading whitespace */ - while (*str == ' ') - str++; - - /* find the op code end */ - for (op_start = op_end = str; - *op_end != 0 && *op_end != ' '; - op_end ++) - { - if (*op_end == '.') { - dot = op_end+1; - *op_end = 0; - op_end+=2; - break; - } - } - - ; - - if (op_end == op_start) - { - as_bad("can't find opcode "); - } - c = *op_end; - - *op_end = 0; - - opcode = (struct h8_opcode *) hash_find(opcode_hash_control, - op_start); - - if (opcode == NULL) - { - as_bad("unknown opcode"); - return; - } - - - input_line_pointer = get_operands(opcode->noperands, op_end, - operand); - *op_end = c; - opcode = get_specific(opcode, operand); - - if (opcode == 0) - { - /* Allocate 2 bytes for the insn anyway */ - char *where =frag_more(2); - where[0] = 0xde; - where[1] = 0xad; - - - as_bad("illegal operands for opcode"); - return; - } - if (opcode->size && dot) - { - if (opcode->size != *dot) - { - as_warn("mismatch between opcode size and operand size"); - } - } - - build_bytes(opcode, operand); - -} + */ -void -DEFUN(tc_crawl_symbol_chain, (headers), -object_headers *headers) -{ - printf("call to tc_crawl_symbol_chain \n"); -} -symbolS *DEFUN(md_undefined_symbol,(name), - char *name) -{ -return 0; -} void -DEFUN(tc_headers_hook,(headers), - object_headers *headers) -{ - printf("call to tc_headers_hook \n"); -} -void -DEFUN_VOID(md_end) -{ -} - -/* Various routines to kill one day */ -/* Equal to MAX_PRECISION in atof-ieee.c */ -#define MAX_LITTLENUMS 6 - -/* Turn a string in input_line_pointer into a floating point constant of type - type, and store the appropriate bytes in *litP. The number of LITTLENUMS - emitted is stored in *sizeP . An error message is returned, or NULL on OK. - */ -char * -md_atof(type,litP,sizeP) -char type; -char *litP; -int *sizeP; -{ - int prec; - LITTLENUM_TYPE words[MAX_LITTLENUMS]; - LITTLENUM_TYPE *wordP; - char *t; - char *atof_ieee(); - - switch(type) { - case 'f': - case 'F': - case 's': - case 'S': - prec = 2; - break; - - case 'd': - case 'D': - case 'r': - case 'R': - prec = 4; - break; - - case 'x': - case 'X': - prec = 6; - break; - - case 'p': - case 'P': - prec = 6; - break; - - default: - *sizeP=0; - return "Bad call to MD_ATOF()"; - } - t=atof_ieee(input_line_pointer,type,words); - if(t) - input_line_pointer=t; - - *sizeP=prec * sizeof(LITTLENUM_TYPE); - for(wordP=words;prec--;) { - md_number_to_chars(litP,(long)(*wordP++),sizeof(LITTLENUM_TYPE)); - litP+=sizeof(LITTLENUM_TYPE); - } - return ""; /* Someone should teach Dean about null pointers */ -} - -int -md_parse_option(argP, cntP, vecP) - char **argP; - int *cntP; - char ***vecP; - - { - return 0; - - } - -int md_short_jump_size; - -void tc_aout_fix_to_chars () { printf("call to tc_aout_fix_to_chars \n"); - abort(); } -void md_create_short_jump(ptr, from_addr, to_addr, frag, to_symbol) -char *ptr; -long from_addr; -long to_addr; -fragS *frag; -symbolS *to_symbol; -{ - as_fatal("failed sanity check."); - } - -void -md_create_long_jump(ptr,from_addr,to_addr,frag,to_symbol) - char *ptr; - long from_addr, to_addr; - fragS *frag; - symbolS *to_symbol; -{ - as_fatal("failed sanity check."); -} - -void -md_convert_frag(headers, fragP) -object_headers *headers; - fragS * fragP; - - { printf("call to md_convert_frag \n"); abort(); } - -long -DEFUN(md_section_align,(seg, size), - segT seg AND - long size) -{ - return((size + (1 << section_alignment[(int) seg]) - 1) & (-1 << section_alignment[(int) seg])); - -} - -void -md_apply_fix(fixP, val) - fixS *fixP; - long val; -{ - char *buf = fixP->fx_where + fixP->fx_frag->fr_literal; - - switch(fixP->fx_size) { - case 1: - *buf++=val; - break; - case 2: - *buf++=(val>>8); - *buf++=val; - break; - case 4: - *buf++=(val>>24); - *buf++=(val>>16); - *buf++=(val>>8); - *buf++=val; - break; - default: - abort(); - - } -} - -void DEFUN(md_operand, (expressionP),expressionS *expressionP) -{ } - -int md_long_jump_size; -int -md_estimate_size_before_relax(fragP, segment_type) - register fragS *fragP; - register segT segment_type; -{ -printf("call tomd_estimate_size_before_relax \n"); abort(); } -/* Put number into target byte order */ - -void DEFUN(md_number_to_chars,(ptr, use, nbytes), - char *ptr AND - long use AND - int nbytes) -{ - switch (nbytes) { - case 4: *ptr++ = (use >> 24) & 0xff; - case 3: *ptr++ = (use >> 16) & 0xff; - case 2: *ptr++ = (use >> 8) & 0xff; - case 1: *ptr++ = (use >> 0) & 0xff; - break; - default: - abort(); - } -} -long md_pcrel_from(fixP) -fixS *fixP; { abort(); } - -void tc_coff_symbol_emit_hook() { } - - -void tc_reloc_mangle(fix_ptr, intr, base) -fixS *fix_ptr; -struct internal_reloc *intr; -bfd_vma base; - + DEFUN(md_assemble,(str), + char *str) { - symbolS *symbol_ptr; + char *op_start; + char *op_end; + unsigned int i; + struct h8_op operand[2]; + struct h8_opcode * opcode; + struct h8_opcode * prev_opcode; - symbol_ptr = fix_ptr->fx_addsy; - - /* If this relocation is attached to a symbol then it's ok - to output it */ - if (fix_ptr->fx_r_type == RELOC_32) { - /* cons likes to create reloc32's whatever the size of the reloc.. - */ - switch (fix_ptr->fx_size) - { - - case 2: - intr->r_type = R_RELWORD; - break; - case 1: - intr->r_type = R_RELBYTE; - break; - default: - abort(); - - } - - } - else { - intr->r_type = fix_ptr->fx_r_type; - } - - intr->r_vaddr = fix_ptr->fx_frag->fr_address + fix_ptr->fx_where +base; - intr->r_offset = fix_ptr->fx_offset; - - if (symbol_ptr) - intr->r_symndx = symbol_ptr->sy_number; - else - intr->r_symndx = -1; + char *dot = 0; + char c; + /* Drop leading whitespace */ + while (*str == ' ') + str++; - -} -/* tc-h8300.c -- Assemble code for the Hitachi h8/300 - Copyright (C) 1991 Free Software Foundation. - -This file is part of GAS, the GNU Assembler. - -GAS 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. - -GAS 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 GAS; see the file COPYING. If not, write to -the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */ - - -/* - Written By Steve Chamberlain - sac@cygnus.com - */ - -#include <stdio.h> -#include "as.h" -#include "bfd.h" -#include "opcode/h8300.h" -#include <ctype.h> -#include "listing.h" - -char comment_chars[] = { ';',0 }; -char line_separator_chars[] = { '$' ,0}; - -/* This table describes all the machine specific pseudo-ops the assembler - has to support. The fields are: - pseudo-op name without dot - function to call to execute this pseudo-op - Integer arg to pass to the function - */ - -void cons(); - -const pseudo_typeS md_pseudo_table[] = { - { "int", cons, 2 }, - { 0,0,0 } -}; - -int md_reloc_size ; - -const char EXP_CHARS[] = "eE"; - -/* Chars that mean this number is a floating point constant */ -/* As in 0f12.456 */ -/* or 0d1.2345e12 */ - char FLT_CHARS[] = "rRsSfFdDxXpP"; - - -const relax_typeS md_relax_table[1]; - - -static struct hash_control *opcode_hash_control; /* Opcode mnemonics */ - - -/* - This function is called once, at assembler startup time. This should - set up all the tables, etc that the MD part of the assembler needs -*/ - -/* encode the size and number into the number field - xxnnnn - 00 8 bit - 01 16 bit - 10 ccr - nnnnreg number -*/ -#define WORD_REG 0x10 -#define BYTE_REG 0x00 -#define CCR_REG 0x20 - struct reg_entry -{ - char *name; - char number; -}; - -struct reg_entry reg_list[] = { -"r0",WORD_REG +0, -"r1",WORD_REG +1, -"r2",WORD_REG +2, -"r3",WORD_REG +3, -"r4",WORD_REG +4, -"r5",WORD_REG +5, -"r6",WORD_REG +6, -"r7",WORD_REG +7, -"fp",WORD_REG +6, -"sp",WORD_REG +7, -"r0h",BYTE_REG + 0, -"r0l",BYTE_REG + 1, -"r1h",BYTE_REG + 2, -"r1l",BYTE_REG + 3, -"r2h",BYTE_REG + 4, -"r2l",BYTE_REG + 5, -"r3h",BYTE_REG + 6, -"r3l",BYTE_REG + 7, -"r4h",BYTE_REG + 8, -"r4l",BYTE_REG + 9, -"r5h",BYTE_REG + 10, -"r5l",BYTE_REG + 11, -"r6h",BYTE_REG + 12, -"r6l",BYTE_REG + 13, -"r7h",BYTE_REG + 14, -"r7l",BYTE_REG + 15, -"ccr",CCR_REG, -0,0 -} -; - - - - - -void md_begin () -{ - struct h8_opcode *opcode; - const struct reg_entry *reg; - char prev_buffer[100]; - int idx = 0; - - opcode_hash_control = hash_new(); - prev_buffer[0] = 0; - - for (opcode = h8_opcodes; opcode->name; opcode++) - { - /* Strip off any . part when inserting the opcode and only enter - unique codes into the hash table - */ - char *src= opcode->name; - unsigned int len = strlen(src); - char *dst = malloc(len+1); - char *buffer = dst; - opcode->size = 0; - while (*src) { - if (*src == '.') { - *dst++ = 0; - src++; - opcode->size = *src; - break; - } - *dst++ = *src++; - } - if (strcmp(buffer, prev_buffer)) - { - hash_insert(opcode_hash_control, buffer, (char *)opcode); - strcpy(prev_buffer, buffer); - idx++; - } - opcode->idx = idx; - - - /* Find the number of operands */ - opcode->noperands = 0; - while (opcode->args.nib[opcode->noperands] != E) - opcode->noperands ++; - /* Find the length of the opcode in bytes */ - opcode->length =0; - while (opcode->data.nib[opcode->length*2] != E) - opcode->length++; - } - -} - - -struct h8_exp { - char *e_beg; - char *e_end; - expressionS e_exp; -}; -struct h8_op -{ - unsigned int dispreg; - op_type mode; - unsigned reg; - expressionS exp; -}; - - - -/* - parse operands - WREG r0,r1,r2,r3,r4,r5,r6,r7,fp,sp - r0l,r0h,..r7l,r7h - @WREG - @WREG+ - @-WREG - #const - -*/ - -op_type r8_sord[] = {RS8, RD8}; -op_type r16_sord[] = {RS16, RD16}; -op_type rind_sord[] = {RSIND, RDIND}; -op_type abs_sord[2] = {ABS16SRC, ABS16DST}; -op_type disp_sord[] = {DISPSRC, DISPDST}; - -/* try and parse a reg name, returns number of chars consumed */ -int -DEFUN(parse_reg,(src, mode, reg, dst), - char *src AND - op_type *mode AND - unsigned int *reg AND - int dst) -{ - if (src[0] == 's' && src[1] == 'p') - { - *mode = r16_sord[dst]; - *reg = 7; - return 2; - } - if (src[0] == 'c' && src[1] == 'c' && src[2] == 'r') - { - *mode = CCR; - *reg = 0; - return 3; - } - if (src[0] == 'f' && src[1] == 'p') - { - *mode = r16_sord[dst]; - *reg = 6; - return 2; - } - if (src[0] == 'r') - { - if (src[1] >= '0' && src[1] <= '7') - { - if(src[2] == 'l') + /* find the op code end */ + for (op_start = op_end = str; + *op_end != 0 && *op_end != ' '; + op_end ++) { - *mode = r8_sord[dst]; - *reg = (src[1] - '0') + 8; - return 3; + if (*op_end == '.') { + dot = op_end+1; + *op_end = 0; + op_end+=2; + break; + } } - if(src[2] == 'h') + + ; + + if (op_end == op_start) { - *mode = r8_sord[dst]; - *reg = (src[1] - '0') ; - return 3; + as_bad("can't find opcode "); } - *mode = r16_sord[dst]; - *reg = (src[1] - '0'); - return 2; - } - } - return 0; -} - -char * -DEFUN(parse_exp,(s, op), - char *s AND - expressionS *op) -{ - char *save = input_line_pointer; - char *new; - segT seg; - input_line_pointer = s; - seg = expr(0,op); - new = input_line_pointer; - input_line_pointer = save; - if (SEG_NORMAL(seg)) - return new; - switch (seg) { - case SEG_ABSOLUTE: - case SEG_UNKNOWN: - case SEG_DIFFERENCE: - case SEG_BIG: - case SEG_REGISTER: - return new; - case SEG_ABSENT: - as_bad("Missing operand"); - return new; - default: - as_bad("Don't understand operand of type %s", segment_name (seg)); - return new; - } -} - -static char * -DEFUN(skip_colonthing,(ptr), - char *ptr) -{ - if (*ptr == ':') { - ptr++; - while (isdigit(*ptr)) - ptr++; + c = *op_end; - } - return ptr; -} - -/* The many forms of operand: - - Rn Register direct - @Rn Register indirect - @(exp[:16], Rn) Register indirect with displacement - @Rn+ - @-Rn - @aa:8 absolute 8 bit - @aa:16 absolute 16 bit - @aa absolute 16 bit - - #xx[:size] immediate data - @(exp:[8], pc) pc rel - @@aa[:8] memory indirect - -*/ - -static void -DEFUN(get_operand,(ptr, op, dst), - char **ptr AND - struct h8_op *op AND - unsigned int dst) -{ - char *src = *ptr; - op_type mode; - unsigned int num; - unsigned int len; - unsigned int size; - op->mode = E; - - len = parse_reg(src, &op->mode, &op->reg, dst); - if (len) { - *ptr = src + len; - return ; - } - - if (*src == '@') - { - src++; - if (*src == '@') - { - src++; - src = parse_exp(src,&op->exp); - src = skip_colonthing(src); - - *ptr = src; - - op->mode = MEMIND; - return; - - } + *op_end = 0; - - if (*src == '-') - { - src++; - len = parse_reg(src, &mode, &num, dst); - if (len == 0 || mode != r16_sord[dst]) - { - as_bad("@- needs word register"); - } - op->mode = RDDEC; - op->reg = num; - *ptr = src + len; - return; - } - if (*src == '(' && ')') - { - /* Disp */ - src++; - src = parse_exp(src, &op->exp); - - if (*src == ')') - { - src++; - op->mode = abs_sord[dst]; - *ptr = src; - return; - } - src = skip_colonthing(src); - - if (*src != ',') - { - as_bad("expected @(exp, reg16)"); - } - src++; - len = parse_reg(src, &mode, &op->reg, dst); - if (len == 0 || mode != r16_sord[dst]) - { - as_bad("expected @(exp, reg16)"); - } - op->mode = disp_sord[dst]; - src += len; - src = skip_colonthing(src); - - if (*src != ')' && '(') - { - as_bad("expected @(exp, reg16)"); - - } - *ptr = src +1; - - return; - } - len = parse_reg(src, &mode, &num, dst); - - if(len) { - src += len; - if (*src == '+') - { - src++; - if (mode != RS16) - { - as_bad("@Rn+ needs src word register"); - } - op->mode = RSINC; - op->reg = num; - *ptr = src; - return; - } - if (mode != r16_sord[dst]) - { - as_bad("@Rn needs word register"); - } - op->mode =rind_sord[dst]; - op->reg = num; - *ptr = src; - return; - } - else - { - /* must be a symbol */ - op->mode = abs_sord[dst]; - *ptr = skip_colonthing(parse_exp(src, &op->exp)); - - return; - } - } - - - if (*src == '#') { - src++; - op->mode = IMM16; - src = parse_exp(src, &op->exp); - *ptr= skip_colonthing(src); - - return; - } - else { - *ptr = parse_exp(src, &op->exp); - op->mode = DISP8; - } -} - - -static -char * -DEFUN(get_operands,(noperands,op_end, operand), - unsigned int noperands AND - char *op_end AND - struct h8_op *operand) -{ - char *ptr = op_end; - switch (noperands) - { - case 0: - operand[0].mode = 0; - operand[1].mode = 0; - break; - - case 1: - ptr++; - get_operand(& ptr, operand +0,0); - operand[1].mode =0; - break; - - case 2: - ptr++; - get_operand(& ptr, operand +0,0); - if (*ptr == ',') ptr++; - get_operand(& ptr, operand +1, 1); - break; - - default: - abort(); - } - - - return ptr; -} - -/* Passed a pointer to a list of opcodes which use different - addressing modes, return the opcode which matches the opcodes - provided - */ -static -struct h8_opcode * -DEFUN(get_specific,(opcode, operands), - struct h8_opcode *opcode AND - struct h8_op *operands) - -{ - struct h8_opcode *this_try = opcode ; - int found = 0; - unsigned int noperands = opcode->noperands; - - unsigned int dispreg; - unsigned int this_index = opcode->idx; - while (this_index == opcode->idx && !found) - { - unsigned int i; - - this_try = opcode ++; - for (i = 0; i < noperands; i++) - { - op_type op = (this_try->args.nib[i]) & ~(B30|B31); - switch (op) - { - case Hex0: - case Hex1: - case Hex2: - case Hex3: - case Hex4: - case Hex5: - case Hex6: - case Hex7: - case Hex8: - case Hex9: - case HexA: - case HexB: - case HexC: - case HexD: - case HexE: - case HexF: - break; - case DISPSRC: - case DISPDST: - operands[0].dispreg = operands[i].reg; - case RD8: - case RS8: - case RDIND: - case RSIND: - case RD16: - case RS16: - case CCR: - case RSINC: - case RDDEC: - if (operands[i].mode != op) goto fail; - break; - case KBIT: - case IMM16: - case IMM3: - case IMM8: - if (operands[i].mode != IMM16) goto fail; - break; - case MEMIND: - if (operands[i].mode != MEMIND) goto fail; - break; - case ABS16SRC: - case ABS8SRC: - case ABS16OR8SRC: - case ABS16ORREL8SRC: - - if (operands[i].mode != ABS16SRC) goto fail; - break; - case ABS16OR8DST: - case ABS16DST: - case ABS8DST: - if (operands[i].mode != ABS16DST) goto fail; - break; - } - } - found =1; - fail: ; - } - if (found) - return this_try; - else - return 0; -} - -static void -DEFUN(check_operand,(operand, width, string), - struct h8_op *operand AND - unsigned int width AND - char *string) -{ - if (operand->exp.X_add_symbol == 0 - && operand->exp.X_subtract_symbol == 0) - { - - /* No symbol involved, let's look at offset, it's dangerous if any of - the high bits are not 0 or ff's, find out by oring or anding with - the width and seeing if the answer is 0 or all fs*/ - if ((operand->exp.X_add_number | width) != ~0 && - (operand->exp.X_add_number & ~width)!= 0) - { - as_warn("operand %s0x%x out of range.", string, operand->exp.X_add_number); - } - } - -} - -/* Now we know what sort of opcodes it is, lets build the bytes - - */ -static void -DEFUN (build_bytes,(this_try, operand), - struct h8_opcode *this_try AND - struct h8_op *operand) - -{ - unsigned int i; - - char *output = frag_more(this_try->length); - char *output_ptr = output; - op_type *nibble_ptr = this_try->data.nib; - char part; - op_type c; - char high; - int nib; - top: ; - while (*nibble_ptr != E) - { - int nibble; - for (nibble = 0; nibble <2; nibble++) - { - c = *nibble_ptr & ~(B30|B31); - switch (c) - { - default: - abort(); - case KBIT: - switch (operand[0].exp.X_add_number) - { - case 1: - nib = 0; - break; - case 2: - nib = 8; - break; - default: - as_bad("Need #1 or #2 here"); - break; - } - /* stop it making a fix */ - operand[0].mode = 0; - break; - case 0: - case 1: - case 2: case 3: case 4: case 5: case 6: - case 7: case 8: case 9: case 10: case 11: - case 12: case 13: case 14: case 15: - nib = c; - break; - case DISPREG: - nib = operand[0].dispreg; - break; - case IMM8: - operand[0].mode = IMM8; - nib = 0; - break; - - case DISPDST: - nib = 0; - break; - case IMM3: - if (operand[0].exp.X_add_symbol == 0) { - operand[0].mode = 0; /* stop it making a fix */ - nib = (operand[0].exp.X_add_number); - } - else as_bad("can't have symbol for bit number"); - if (nib < 0 || nib > 7) - { - as_bad("Bit number out of range %d", nib); - } - - break; - - case ABS16DST: - nib = 0; - break; - case ABS8DST: - operand[1].mode = ABS8DST; - nib = 0; - break; - case ABS8SRC: - operand[0].mode = ABS8SRC; - nib = 0; - break; - case ABS16OR8DST: - operand[1].mode = c; - - nib = 0; - - break; - - case ABS16ORREL8SRC: - operand[0].mode = c; - nib=0; - break; - - case ABS16OR8SRC: - operand[0].mode = ABS16OR8SRC; - nib = 0; - break; - case DISPSRC: - operand[0].mode = ABS16SRC; - nib = 0; - break; - - case DISP8: - operand[0].mode = DISP8; - nib = 0; - break; + opcode = (struct h8_opcode *) hash_find(opcode_hash_control, + op_start); - case ABS16SRC: - case IMM16: - case IGNORE: - case MEMIND: - - nib=0; - break; - case RS8: - case RS16: - case RSIND: - case RSINC: - nib = operand[0].reg; - break; - - case RD8: - case RD16: - case RDDEC: - case RDIND: - nib = operand[1].reg; - break; - - case E: - abort(); - break; - } - if (*nibble_ptr & B31) { - nib |=0x8; - } - - if (nibble == 0) { - *output_ptr = nib << 4; - } - else { - *output_ptr |= nib; - output_ptr++; - } - nibble_ptr++; - } - - } - - /* output any fixes */ - for (i = 0; i < 2; i++) - { - switch (operand[i].mode) { - case 0: - break; - - case DISP8: - check_operand(operand+i, 0x7f,"@"); - - fix_new(frag_now, - output - frag_now->fr_literal + 1, - 1, - operand[i].exp.X_add_symbol, - operand[i].exp.X_subtract_symbol, - operand[i].exp.X_add_number -1, - 1, - R_PCRBYTE); - break; - case IMM8: - check_operand(operand+i, 0xff,"#"); - /* If there is nothing else going on we can safely - reloc in place */ - if (operand[i].exp.X_add_symbol == 0) - { - output[1] = operand[i].exp.X_add_number; - } - else - { - fix_new(frag_now, - output - frag_now->fr_literal + 1, - 1, - operand[i].exp.X_add_symbol, - operand[i].exp.X_subtract_symbol, - operand[i].exp.X_add_number, - 0, - R_RELBYTE); - } - - break; - case MEMIND: - check_operand(operand+i, 0xff,"@@"); - fix_new(frag_now, - output - frag_now->fr_literal + 1, - 1, - operand[i].exp.X_add_symbol, - operand[i].exp.X_subtract_symbol, - operand[i].exp.X_add_number, - 0, - R_RELBYTE); - break; - case ABS8DST: - case ABS8SRC: - check_operand(operand+i, 0xff,"@"); - fix_new(frag_now, - output - frag_now->fr_literal + 1, - 1, - operand[i].exp.X_add_symbol, - operand[i].exp.X_subtract_symbol, - operand[i].exp.X_add_number, - 0, - R_RELBYTE); - break; - - case ABS16OR8SRC: - case ABS16OR8DST: - check_operand(operand+i, 0xffff,"@"); - - fix_new(frag_now, - output - frag_now->fr_literal + 2, - 2, - operand[i].exp.X_add_symbol, - operand[i].exp.X_subtract_symbol, - operand[i].exp.X_add_number, - 0, - R_MOVB1); - break; - - case ABS16ORREL8SRC: - check_operand(operand+i, 0xffff,"@"); - - fix_new(frag_now, - output - frag_now->fr_literal + 2, - 2, - operand[i].exp.X_add_symbol, - operand[i].exp.X_subtract_symbol, - operand[i].exp.X_add_number, - 0, - R_JMP1); - break; - - - case ABS16SRC: - case ABS16DST: - case IMM16: - case DISPSRC: - case DISPDST: - check_operand(operand+i, 0xffff,"@"); - if (operand[i].exp.X_add_symbol == 0) - { - /* This should be done with bfd */ - output[3] = operand[i].exp.X_add_number & 0xff; - output[2] = operand[i].exp.X_add_number >> 8; - - } - else - { - - fix_new(frag_now, - output - frag_now->fr_literal + 2, - 2, - operand[i].exp.X_add_symbol, - operand[i].exp.X_subtract_symbol, - operand[i].exp.X_add_number, - 0, - R_RELWORD); - } + if (opcode == NULL) + { + as_bad("unknown opcode"); + return; + } + + + input_line_pointer = get_operands(opcode->noperands, op_end, + operand); + *op_end = c; + prev_opcode = opcode; + + opcode = get_specific(opcode, operand); + + if (opcode == 0) + { + /* Couldn't find an opcode which matched the operands */ + char *where =frag_more(2); + where[0] = 0x0; + where[1] = 0x0; + clever_message(prev_opcode, operand); + + return; + } + if (opcode->size && dot) + { + if (opcode->size != *dot) + { + as_warn("mismatch between opcode size and operand size"); + } + } + + build_bytes(opcode, operand); - break; - case RS8: - case RD8: - case RS16: - case RD16: - case RDDEC: - case KBIT: - case RSINC: - case RDIND: - case RSIND: - case CCR: - - break; - default: - abort(); - } - } - -} -/* This is the guts of the machine-dependent assembler. STR points to a - machine dependent instruction. This funciton is supposed to emit - the frags/bytes it assembles to. - */ - - -void -DEFUN(md_assemble,(str), - char *str) -{ - char *op_start; - char *op_end; - unsigned int i; - struct h8_op operand[2]; - struct h8_opcode * opcode; - char *dot = 0; - char c; - /* Drop leading whitespace */ - while (*str == ' ') - str++; - - /* find the op code end */ - for (op_start = op_end = str; - *op_end != 0 && *op_end != ' '; - op_end ++) - { - if (*op_end == '.') { - dot = op_end+1; - *op_end = 0; - op_end+=2; - break; - } - } - - ; - - if (op_end == op_start) - { - as_bad("can't find opcode "); - } - c = *op_end; - - *op_end = 0; - - opcode = (struct h8_opcode *) hash_find(opcode_hash_control, - op_start); - - if (opcode == NULL) - { - as_bad("unknown opcode"); - return; - } - - - input_line_pointer = get_operands(opcode->noperands, op_end, - operand); - *op_end = c; - opcode = get_specific(opcode, operand); - - if (opcode == 0) - { - /* Allocate 2 bytes for the insn anyway */ - char *where =frag_more(2); - where[0] = 0xde; - where[1] = 0xad; - - - as_bad("illegal operands for opcode"); - return; - } - if (opcode->size && dot) - { - if (opcode->size != *dot) - { - as_warn("mismatch between opcode size and operand size"); - } - } - - build_bytes(opcode, operand); - } void -DEFUN(tc_crawl_symbol_chain, (headers), -object_headers *headers) + DEFUN(tc_crawl_symbol_chain, (headers), + object_headers *headers) { - printf("call to tc_crawl_symbol_chain \n"); + printf("call to tc_crawl_symbol_chain \n"); } symbolS *DEFUN(md_undefined_symbol,(name), char *name) { -return 0; + return 0; } void -DEFUN(tc_headers_hook,(headers), - object_headers *headers) + DEFUN(tc_headers_hook,(headers), + object_headers *headers) { - printf("call to tc_headers_hook \n"); + printf("call to tc_headers_hook \n"); } void -DEFUN_VOID(md_end) + DEFUN_VOID(md_end) { } @@ -2215,9 +1082,9 @@ DEFUN_VOID(md_end) /* Turn a string in input_line_pointer into a floating point constant of type type, and store the appropriate bytes in *litP. The number of LITTLENUMS emitted is stored in *sizeP . An error message is returned, or NULL on OK. - */ + */ char * -md_atof(type,litP,sizeP) + md_atof(type,litP,sizeP) char type; char *litP; int *sizeP; @@ -2227,7 +1094,7 @@ int *sizeP; LITTLENUM_TYPE *wordP; char *t; char *atof_ieee(); - + switch(type) { case 'f': case 'F': @@ -2235,32 +1102,32 @@ int *sizeP; case 'S': prec = 2; break; - + case 'd': case 'D': case 'r': case 'R': prec = 4; break; - + case 'x': case 'X': prec = 6; break; - + case 'p': case 'P': prec = 6; break; - + default: *sizeP=0; return "Bad call to MD_ATOF()"; } t=atof_ieee(input_line_pointer,type,words); if(t) - input_line_pointer=t; - + input_line_pointer=t; + *sizeP=prec * sizeof(LITTLENUM_TYPE); for(wordP=words;prec--;) { md_number_to_chars(litP,(long)(*wordP++),sizeof(LITTLENUM_TYPE)); @@ -2270,20 +1137,20 @@ int *sizeP; } int -md_parse_option(argP, cntP, vecP) - char **argP; - int *cntP; - char ***vecP; + md_parse_option(argP, cntP, vecP) +char **argP; +int *cntP; +char ***vecP; - { - return 0; - - } +{ + return 0; + +} int md_short_jump_size; void tc_aout_fix_to_chars () { printf("call to tc_aout_fix_to_chars \n"); - abort(); } + abort(); } void md_create_short_jump(ptr, from_addr, to_addr, frag, to_symbol) char *ptr; long from_addr; @@ -2292,41 +1159,41 @@ fragS *frag; symbolS *to_symbol; { as_fatal("failed sanity check."); - } +} void -md_create_long_jump(ptr,from_addr,to_addr,frag,to_symbol) - char *ptr; - long from_addr, to_addr; - fragS *frag; - symbolS *to_symbol; + md_create_long_jump(ptr,from_addr,to_addr,frag,to_symbol) +char *ptr; +long from_addr, to_addr; +fragS *frag; +symbolS *to_symbol; { as_fatal("failed sanity check."); } void -md_convert_frag(headers, fragP) + md_convert_frag(headers, fragP) object_headers *headers; - fragS * fragP; +fragS * fragP; - { printf("call to md_convert_frag \n"); abort(); } +{ printf("call to md_convert_frag \n"); abort(); } long -DEFUN(md_section_align,(seg, size), - segT seg AND - long size) + DEFUN(md_section_align,(seg, size), + segT seg AND + long size) { return((size + (1 << section_alignment[(int) seg]) - 1) & (-1 << section_alignment[(int) seg])); - + } void -md_apply_fix(fixP, val) - fixS *fixP; - long val; + md_apply_fix(fixP, val) +fixS *fixP; +long val; { char *buf = fixP->fx_where + fixP->fx_frag->fr_literal; - + switch(fixP->fx_size) { case 1: *buf++=val; @@ -2352,11 +1219,11 @@ void DEFUN(md_operand, (expressionP),expressionS *expressionP) int md_long_jump_size; int -md_estimate_size_before_relax(fragP, segment_type) - register fragS *fragP; - register segT segment_type; + md_estimate_size_before_relax(fragP, segment_type) +register fragS *fragP; +register segT segment_type; { -printf("call tomd_estimate_size_before_relax \n"); abort(); } + printf("call tomd_estimate_size_before_relax \n"); abort(); } /* Put number into target byte order */ void DEFUN(md_number_to_chars,(ptr, use, nbytes), @@ -2364,15 +1231,15 @@ void DEFUN(md_number_to_chars,(ptr, use, nbytes), long use AND int nbytes) { - switch (nbytes) { - case 4: *ptr++ = (use >> 24) & 0xff; - case 3: *ptr++ = (use >> 16) & 0xff; - case 2: *ptr++ = (use >> 8) & 0xff; - case 1: *ptr++ = (use >> 0) & 0xff; - break; - default: - abort(); - } + switch (nbytes) { + case 4: *ptr++ = (use >> 24) & 0xff; + case 3: *ptr++ = (use >> 16) & 0xff; + case 2: *ptr++ = (use >> 8) & 0xff; + case 1: *ptr++ = (use >> 0) & 0xff; + break; + default: + abort(); + } } long md_pcrel_from(fixP) fixS *fixP; { abort(); } @@ -2386,41 +1253,41 @@ struct internal_reloc *intr; bfd_vma base; { - symbolS *symbol_ptr; + symbolS *symbol_ptr; + + symbol_ptr = fix_ptr->fx_addsy; + + /* If this relocation is attached to a symbol then it's ok + to output it */ + if (fix_ptr->fx_r_type == RELOC_32) { + /* cons likes to create reloc32's whatever the size of the reloc.. + */ + switch (fix_ptr->fx_size) + { + + case 2: + intr->r_type = R_RELWORD; + break; + case 1: + intr->r_type = R_RELBYTE; + break; + default: + abort(); + + } + + } + else { + intr->r_type = fix_ptr->fx_r_type; + } + + intr->r_vaddr = fix_ptr->fx_frag->fr_address + fix_ptr->fx_where +base; + intr->r_offset = fix_ptr->fx_offset; + + if (symbol_ptr) + intr->r_symndx = symbol_ptr->sy_number; + else + intr->r_symndx = -1; - symbol_ptr = fix_ptr->fx_addsy; - - /* If this relocation is attached to a symbol then it's ok - to output it */ - if (fix_ptr->fx_r_type == RELOC_32) { - /* cons likes to create reloc32's whatever the size of the reloc.. - */ - switch (fix_ptr->fx_size) - { - - case 2: - intr->r_type = R_RELWORD; - break; - case 1: - intr->r_type = R_RELBYTE; - break; - default: - abort(); - - } - - } - else { - intr->r_type = fix_ptr->fx_r_type; - } - - intr->r_vaddr = fix_ptr->fx_frag->fr_address + fix_ptr->fx_where +base; - intr->r_offset = fix_ptr->fx_offset; - - if (symbol_ptr) - intr->r_symndx = symbol_ptr->sy_number; - else - intr->r_symndx = -1; - } |