2012-03-26 19:18:29 +00:00
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/* coff information for Zilog Z80
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2022-10-27 18:45:45 +00:00
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Copyright (C) 2005-2022 Free Software Foundation, Inc.
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2012-03-26 19:18:29 +00:00
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Contributed by Arnold Metselaar <arnold_m@operamail.com>
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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2014-09-12 22:14:23 +00:00
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the Free Software Foundation; either version 3 of the License, or
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2012-03-26 19:18:29 +00:00
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, 51 Franklin Street - Fifth Floor, Boston, MA 02110-1301, USA. */
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#define L_LNNO_SIZE 4
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#include "coff/external.h"
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/* z80 backend does not use dots in section names. */
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#undef _TEXT
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#define _TEXT "text"
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#undef _DATA
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#define _DATA "data"
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#undef _BSS
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#define _BSS "bss"
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/* Type of cpu is stored in flags. */
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#define F_MACHMASK 0xF000
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2014-09-12 22:14:23 +00:00
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/* Z80 COFF encodes the section alignment in the section header flags */
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#define COFF_ALIGN_IN_SECTION_HEADER 1
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#define COFF_ALIGN_IN_S_FLAGS 1
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#define F_ALGNMASK 0x0F00
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/* requires a power-of-two argument */
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2022-10-27 18:45:45 +00:00
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#define COFF_ENCODE_ALIGNMENT(B,S,X) \
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((S).s_flags |= (((unsigned) (X) & 0xF) << 8), true)
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2014-09-12 22:14:23 +00:00
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/* result is a power of two */
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2022-10-27 18:45:45 +00:00
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#define COFF_DECODE_ALIGNMENT(X) (((X) >> 8) & 0xF)
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2014-09-12 22:14:23 +00:00
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2012-03-26 19:18:29 +00:00
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#define Z80MAGIC 0x805A
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#define Z80BADMAG(x) (((x).f_magic != Z80MAGIC))
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/* Relocation directives. */
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/* This format actually has more bits than we need. */
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struct external_reloc
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{
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char r_vaddr[4];
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char r_symndx[4];
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char r_offset[4];
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char r_type[2];
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char r_stuff[2];
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};
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#define RELOC struct external_reloc
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#define RELSZ 16
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2022-10-27 18:45:45 +00:00
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/* Z80 relocations. */
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#define R_IMM16 0x01 /* 16 bit abs */
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#define R_JR 0x02 /* jr 8 bit disp */
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#define R_IMM32 0x11 /* 32 bit abs */
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#define R_IMM8 0x22 /* 8 bit abs */
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#define R_OFF8 0x32 /* 8 bit signed abs, for (i[xy]+d) */
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#define R_IMM24 0x33 /* 24 bit abs */
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#define R_IMM16BE 0x3A /* 16 bit abs, big endian */
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#define R_BYTE0 0x34 /* first (lowest) 8 bits of multibyte value */
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#define R_BYTE1 0x35 /* second 8 bits of multibyte value */
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#define R_BYTE2 0x36 /* third 8 bits of multibyte value */
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#define R_BYTE3 0x37 /* fourth (highest) 8 bits of multibyte value */
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#define R_WORD0 0x38 /* lowest 16 bits of 32 or 24 bit value */
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#define R_WORD1 0x39 /* highest 16 bits of 32 or 24 bit value */
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