diff options
author | Steve Chamberlain <sac@cygnus> | 1992-08-25 22:12:54 +0000 |
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committer | Steve Chamberlain <sac@cygnus> | 1992-08-25 22:12:54 +0000 |
commit | 163107a143737d849de4dd64a270fcf2e07c089d (patch) | |
tree | 3a595bb24d5542329b1827950463b8e9998b2a65 /gas | |
parent | 3ab9faab123735720c08001a196119c40f9de110 (diff) | |
download | gdb-163107a143737d849de4dd64a270fcf2e07c089d.zip gdb-163107a143737d849de4dd64a270fcf2e07c089d.tar.gz gdb-163107a143737d849de4dd64a270fcf2e07c089d.tar.bz2 |
Support for the Z8k
Diffstat (limited to 'gas')
-rw-r--r-- | gas/config/.Sanitize | 11 | ||||
-rw-r--r-- | gas/config/ChangeLog | 4 | ||||
-rw-r--r-- | gas/config/obj-coffbfd.c | 7 | ||||
-rw-r--r-- | gas/config/obj-coffbfd.h | 6 | ||||
-rw-r--r-- | gas/config/tc-z8k.c | 1051 | ||||
-rw-r--r-- | gas/config/tc-z8k.h | 41 | ||||
-rw-r--r-- | gas/config/z8k.mt | 5 |
7 files changed, 1119 insertions, 6 deletions
diff --git a/gas/config/.Sanitize b/gas/config/.Sanitize index 9be2d3c..19e7ea9 100644 --- a/gas/config/.Sanitize +++ b/gas/config/.Sanitize @@ -108,6 +108,8 @@ tc-sparc.c tc-sparc.h tc-vax.c tc-vax.h +tc-z8k.c +tc-z8k.h te-dpx2.h te-generic.h te-i386aix.h @@ -117,6 +119,10 @@ te-sun3.h te-sysv32.h vax-inst.h vms +<<<<<<< .Sanitize +z8k.mt +======= +>>>>>>> 1.23 @@ -138,7 +144,10 @@ echo Done in `pwd`. # # # $Log$ -# Revision 1.23 1992/07/23 18:23:44 gumby +# Revision 1.24 1992/08/25 22:12:38 sac +# Support for the Z8k +# +# Revision 1.23 1992/07/23 18:23:44 gumby # Keep OSE support # # Revision 1.22 1992/05/07 00:24:39 sac diff --git a/gas/config/ChangeLog b/gas/config/ChangeLog index f599222..9bfeafb 100644 --- a/gas/config/ChangeLog +++ b/gas/config/ChangeLog @@ -1,3 +1,7 @@ +Tue Aug 25 15:11:08 1992 Steve Chamberlain (sac@thepub.cygnus.com) + + * z8k.c, z8k.h, z8k.mt: z8000 support stuff + Mon Aug 24 12:45:12 1992 Ian Lance Taylor (ian@cygnus.com) * tc-m68k.c: use TARGET_CPU to choose default cpu type. diff --git a/gas/config/obj-coffbfd.c b/gas/config/obj-coffbfd.c index 1d5b50b..9bd17e3 100644 --- a/gas/config/obj-coffbfd.c +++ b/gas/config/obj-coffbfd.c @@ -1619,7 +1619,8 @@ static void DEFUN_VOID(remove_subsegs) } } - +int machine; +int coff_flags; extern void DEFUN_VOID(write_object_file) { int i; @@ -1638,7 +1639,7 @@ extern void DEFUN_VOID(write_object_file) exit(42); } bfd_set_format(abfd, bfd_object); - bfd_set_arch_mach(abfd, BFD_ARCH, 0); + bfd_set_arch_mach(abfd, BFD_ARCH, machine); @@ -1724,7 +1725,7 @@ extern void DEFUN_VOID(write_object_file) filehdr.f_magic = COFF_MAGIC; filehdr.f_timdat = time(0); - filehdr.f_flags = COFF_FLAGS ; + filehdr.f_flags = COFF_FLAGS | coff_flags; if (!had_lineno) { diff --git a/gas/config/obj-coffbfd.h b/gas/config/obj-coffbfd.h index b7eef37..c7ba3e7 100644 --- a/gas/config/obj-coffbfd.h +++ b/gas/config/obj-coffbfd.h @@ -33,8 +33,10 @@ #define internal_lineno bfd_internal_lineno #include "coff/internal.h" #undef internal_lineno - -#if defined(TC_H8300) +#if defined(TC_Z8K) +#include "coff/z8k.h" +#define TARGET_FORMAT "coff-z8k" +#elif defined(TC_H8300) #include "coff/h8300.h" #define TARGET_FORMAT "coff-h8300" #elif defined(TC_A29K) diff --git a/gas/config/tc-z8k.c b/gas/config/tc-z8k.c new file mode 100644 index 0000000..0f5acef --- /dev/null +++ b/gas/config/tc-z8k.c @@ -0,0 +1,1051 @@ +/* tc-z8k.c -- Assemble code for the Zilog Z800N + Copyright (C) 1992 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> +#define DEFINE_TABLE +#include "disasm/z8kopcode.h" + +#include "as.h" +#include "bfd.h" +#include <ctype.h> +#include "listing.h" + +char comment_chars[] = { ';',0 }; +char line_separator_chars[] = { '$' ,0}; + +extern int machine; +extern int coff_flags; +int segmented_mode; +int md_reloc_size ; + +/* 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(); + + +void s_segm() +{ + segmented_mode = 1; + machine = bfd_mach_z8001; + coff_flags = F_Z8001; +} + +void s_unseg() +{ + segmented_mode = 0; + machine = bfd_mach_z8002; + coff_flags = F_Z8002; +} +const pseudo_typeS md_pseudo_table[] = +{ +{ "int", cons, 2 }, +{ "data.b", cons, 1 }, +{ "data.w", cons, 2 }, +{ "data.l", cons, 4 }, +{ "form", listing_psize, 0 }, +{ "heading", listing_title, 0}, +{ "import", s_ignore, 0}, +{ "page", listing_eject, 0}, +{ "program", s_ignore, 0}, +{ "SEGM", s_segm, 0}, +{ "UNSEG", s_unseg, 0}, +{ 0,0,0 } +}; + + +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 */ + + + +void md_begin () +{ + opcode_entry_type *opcode; + char *prev_name= ""; + int idx = 0; + + opcode_hash_control = hash_new(); + + + for (opcode = z8k_table; opcode->name; opcode++) + { + /* Only enter unique codes into the table */ + char *src= opcode->name; + + if (strcmp(opcode->name, prev_name)) + { + hash_insert(opcode_hash_control, opcode->name, (char *)opcode); + idx++; + } + opcode->idx = idx; + prev_name = opcode->name; + } + +} + + +struct z8k_exp { + char *e_beg; + char *e_end; + expressionS e_exp; +}; +typedef struct z8k_op +{ + char regsize; /* 'b','w','r','q' */ + unsigned int reg; /* 0..15 */ + + int mode; + + unsigned int x_reg;/* any other register associated with the mode */ + expressionS exp; /* any expression */ +} op_type; + + + +static op_type *da_address; +static op_type *imm_operand; + +int the_cc; + +char * +DEFUN(whatreg,(reg, src), + int *reg AND + char *src) +{ + if (isdigit(src[1])) + { + *reg = (src[0] - '0') * 10 +src[1] - '0'; + return src+2; + } + else + { + *reg = (src[0] - '0'); + return src+1; + } +return 0; +} + +/* + parse operands + + rh0-rh7, rl0-rl7 + r0-r15 + rr0-rr14 + rq0--rq12 + WREG r0,r1,r2,r3,r4,r5,r6,r7,fp,sp + r0l,r0h,..r7l,r7h + @WREG + @WREG+ + @-WREG + #const + + */ + + +/* try and parse a reg name, returns number of chars consumed */ +char* +DEFUN(parse_reg,(src, mode, reg), + char *src AND + int * mode AND + unsigned int *reg) +{ + char *res = 0; + if (src[0] == 'R') + { + if (src[1] == 'R') + { + *mode = CLASS_REG_LONG; + res = whatreg(reg, src+2); + } + else if (src[1] == 'H') + { + *mode = CLASS_REG_BYTE; + res = whatreg(reg, src+2); + } + else if (src[1] == 'L') + { + *mode = CLASS_REG_BYTE; + res = whatreg(reg, src+2); + } + else if (src[1] == 'Q') + { + * mode = CLASS_REG_QUAD; + res = whatreg(reg, src+2); + } + else + { + *mode = CLASS_REG_WORD; + res = whatreg(reg, src+1); + } + } + return res; + + +} + +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; + } +} + + +/* The many forms of operand: + + <rb> + <r> + <rr> + <rq> + @r + #exp + exp + exp(r) + r(#exp) + r(r) + + + + */ + +static +char * +DEFUN(checkfor,(ptr, what), + char *ptr AND + char what) +{ +if (*ptr == what) ptr++; +else { +as_bad("expected %c", what); +} +return ptr; +} + +/* Make sure the mode supplied is the size of a word */ +static void +DEFUN(regword,(mode, string), + int mode AND + char *string) +{ + int ok; + ok = CLASS_REG_WORD; + if (ok != mode) + { + as_bad("register is wrong size for a word %s", string); + } +} + +/* Make sure the mode supplied is the size of an address */ +static void +DEFUN(regaddr,(mode, string), + int mode AND + char *string) +{ + int ok; + ok = segmented_mode ? CLASS_REG_LONG : CLASS_REG_WORD; + if (ok != mode) + { + as_bad("register is wrong size for address %s", string); + } +} + +struct cc_names { +int value; +char *name; + + +}; + +struct cc_names table[] = +{ + 0x0,"F", + 0x6,"Z", + 0xe,"NZ", + 0x7,"C", + 0xf,"NC", + 0xd,"PL", + 0x5,"MI", + 0xe,"NE", + 0x6,"EQ", + 0x4,"OV", + 0xc,"NOV", + 0x4,"PE", + 0xC,"PO", + 0x9,"GE", + 0x1,"LT", + 0xa,"GT", + 0x2,"LE", + 0xf,"UGE", + 0x7,"ULT", + 0xb,"UGT", + 0x3,"ULE", + 0,0 + }; + +static void +DEFUN(get_cc_operand,(ptr, mode, dst), + char **ptr AND + struct z8k_op *mode AND + unsigned int dst) +{ + char *src = *ptr; + int r; + int i; + mode->mode = CLASS_CC; + for (i = 0; table[i].name; i++) + { + int j; + for (j = 0; table[i].name[j]; j++) + { + if (table[i].name[j] != src[j]) + goto fail; + } + the_cc = table[i].value; + *ptr = src + j; + return; + fail:; + } +the_cc = 0x8; + return ; +} + +static void +DEFUN(get_operand,(ptr, mode, dst), + char **ptr AND + struct z8k_op *mode AND + unsigned int dst) +{ + char *src = *ptr; + char *end; + unsigned int num; + unsigned int len; + unsigned int size; + mode->mode = 0; + + if (*src == '#') + { + mode->mode = CLASS_IMM; + imm_operand = mode; + src = parse_exp(src+1, &(mode->exp)); + } + else if (*src == '@') { + int d; + mode->mode = CLASS_IR; + src= parse_reg(src+1, &d, &mode->reg); + } + else + { + int reg; + end = parse_reg(src, &mode->mode, ®); + + if (end) + { + int nw, nr; + src = end; + if (*src == '(') + { + src++; + end = parse_reg(src, &nw, &nr); + if (end) + { + /* Got Ra(Rb) */ + src = end; + + if (*src != ')') + { + as_bad("Missing ) in ra(rb)"); + } + else + { + src++; + } + + regaddr(mode->mode,"ra(rb) ra"); + regword(mode->mode,"ra(rb) rb"); + mode->mode = CLASS_BX; + mode->reg = reg; + mode->x_reg = nr; + + } + else + { + /* Got Ra(disp) */ + if (*src == '#') + src++; + src = parse_exp(src, &(mode->exp)); + src = checkfor(src, ')'); + mode->mode = CLASS_BA; + mode->reg = reg; + mode->x_reg = 0; + } + } + else + { + mode->reg = reg; + mode->x_reg = 0; + } + } + else + { + /* No initial reg */ + src = parse_exp(src, &(mode->exp)); + if (*src == '(') + { + src++; + end = parse_reg(src, &(mode->mode), ®); + regword(mode->mode,"addr(Ra) ra"); + mode->mode = CLASS_X; + mode->reg = reg; + mode->x_reg =0; + da_address = mode; + src = checkfor(end, ')'); + } + else + { + /* Just an address */ + mode->mode = CLASS_DA; + mode->reg = 0; + mode->x_reg = 0; + da_address = mode; + } + } + } + *ptr = src; +} + +static +char * +DEFUN(get_operands,(operand, op_end, operand), + opcode_entry_type *opcode AND + char *op_end AND + op_type *operand) +{ + char *ptr = op_end; + switch (opcode->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++; + if (opcode->arg_info[0] == CLASS_CC) + { + get_cc_operand(&ptr, operand+0,0); + } + else + { + 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 + */ + +int reg[16]; +expressionS disp; + +static +opcode_entry_type * +DEFUN(get_specific,(opcode, operands), + opcode_entry_type *opcode AND + op_type *operands) + +{ + opcode_entry_type *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++) + { + int mode = operands[i].mode; + + if ((mode&CLASS_MASK) != (this_try->arg_info[i] & CLASS_MASK)) goto fail; + + reg[this_try->arg_info[i] & ARG_MASK] = operands[i].reg; + } + + found =1; + fail: ; + } + if (found) + return this_try; + else + return 0; +} + +static void +DEFUN(check_operand,(operand, width, string), + struct z8k_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); + } + } + +} + +static void +DEFUN(newfix,(ptr, type, operand), + int byte AND + int type AND + op_type *operand) +{ + + fix_new(frag_now, + byte, + 1, + operand->exp.X_add_symbol, + operand->exp.X_subtract_symbol, + operand->exp.X_add_number, + 0, + type); +} + + +/* Now we know what sort of opcodes it is, lets build the bytes - + */ +static void + DEFUN (build_bytes,(this_try, operand), + opcode_entry_type *this_try AND + struct z8k_op *operand) +{ + unsigned int i; + char buffer[20]; + int length; + char *output; + char *output_ptr = buffer; + char part; + int c; + char high; + int nib; + int nibble; + unsigned short *class_ptr; + length = this_try->length; + if (segmented_mode && da_address) + { + /* two more bytes when in segmented mode and using da address + mode */ + length += 2; + } + output = frag_more(this_try->length); +memset(buffer, 20, 0); + class_ptr = this_try->byte_info; + top: ; + + for (nibble = 0; c = *class_ptr++; nibble++) + { + + switch (c & CLASS_MASK) + { + default: + abort(); + case CLASS_ADDRESS: + /* Direct address, we don't cope with the SS mode right now */ + if (segmented_mode) { + newfix(nibble/2, R_DA | R_SEG, da_address); + output_ptr += 4; + } + else { + newfix(nibble/2, R_DA, da_address); + output_ptr += 2; + } + da_address = 0; + break; + case CLASS_CC: + *output_ptr++ = the_cc; + break; + case CLASS_BIT: + *output_ptr++ = c & 0xf; + break; + case CLASS_REGN0: + if (reg[c&0xf] == 0) + { + as_bad("can't use R0 here"); + } + case CLASS_REG: + case CLASS_REG_BYTE: + case CLASS_REG_WORD: + case CLASS_REG_LONG: + case CLASS_REG_QUAD: + /* Insert bit mattern of + right reg */ + *output_ptr++ = reg[c & 0xf]; + break; + case CLASS_IMM: + { + nib = 0; + switch (c & ARG_MASK) + { + case ARG_IMM4: + newfix(nibble/2, R_IMM4L, imm_operand); + *output_ptr++ = 0; + break; + + case ARG_IMM8: + newfix(nibble/2, R_IMM8, imm_operand); + *output_ptr++ = 0; + *output_ptr++ = 0; + + case ARG_IMM16: + newfix(nibble/2, R_IMM16, imm_operand); + *output_ptr++ = 0; + *output_ptr++ = 0; + *output_ptr++ = 0; + *output_ptr++ = 0; + break; + + case ARG_IMM32: + newfix(nibble/2, R_IMM32, imm_operand); + *output_ptr++ = 0; + *output_ptr++ = 0; + *output_ptr++ = 0; + *output_ptr++ = 0; + + *output_ptr++ = 0; + *output_ptr++ = 0; + *output_ptr++ = 0; + *output_ptr++ = 0; + + output_ptr +=8; + break; + + default: + abort(); + + + } + } + } + } + + /* Copy from the nibble buffer into the frag */ + + { + char *src = buffer; + char *fragp = output; + while (src < output_ptr) + { + *fragp = (src[0] << 4) | src[1]; + src+=2; + fragp++; + } + + + } + +} + +/* 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 z8k_op operand[2]; + opcode_entry_type *opcode; + opcode_entry_type * prev_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 == op_start) + { + as_bad("can't find opcode "); + } + c = *op_end; + + *op_end = 0; + + opcode = (opcode_entry_type *) hash_find(opcode_hash_control, + op_start); + + if (opcode == NULL) + { + as_bad("unknown opcode"); + return; + } + + + input_line_pointer = get_operands(opcode, 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; + + as_bad("error"); + return; + } + + 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; + +{ + 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_IMM16; + break; + case 1: + intr->r_type = R_IMM8; + 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; + + +} + + diff --git a/gas/config/tc-z8k.h b/gas/config/tc-z8k.h new file mode 100644 index 0000000..4bb634b --- /dev/null +++ b/gas/config/tc-z8k.h @@ -0,0 +1,41 @@ +/* This file is tc-z8k.h + + Copyright (C) 1987-1992 Free Software Foundation, Inc. + + 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. */ + + +#define TC_Z8K + +/* This macro translates between an internal fix and an coff reloc type */ +#define TC_COFF_FIX2RTYPE(fixP) abort(); + +#define BFD_ARCH bfd_arch_z8k +#define COFF_MAGIC 0x8000 +#define TC_COUNT_RELOC(x) (1) +#define IGNORE_NONSTANDARD_ESCAPES + +#define TC_RELOC_MANGLE(a,b,c) tc_reloc_mangle(a,b,c) + +#define DO_NOT_STRIP 0 +#define DO_STRIP 0 +#define LISTING_HEADER "Zilog Z8000 GAS " +#define NEED_FX_R_TYPE 1 +#define RELOC_32 1234 +#define COFF_FLAGS 1 + +/* end of tc-h8300.h */ diff --git a/gas/config/z8k.mt b/gas/config/z8k.mt new file mode 100644 index 0000000..40b60cb --- /dev/null +++ b/gas/config/z8k.mt @@ -0,0 +1,5 @@ +TARG_CPU_DEPENDENTS=$(srcdir)/../include/opcode/h8300.h +LOCAL_LOADLIBES=../bfd/libbfd.a +TDEFINES=-DBFD_HEADERS -DMANY_SEGMENTS -DBFD + +CC=gcc |