/* coff information for Zilog Z80
Copyright (C) 2005-2024 Free Software Foundation, Inc.
Contributed by Arnold Metselaar <
[email protected]>
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 3 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, 51 Franklin Street - Fifth Floor, Boston, MA 02110-1301, USA. */
#define L_LNNO_SIZE 4
#include "coff/external.h"
/* z80 backend does not use dots in section names. */
#undef _TEXT
#define _TEXT "text"
#undef _DATA
#define _DATA "data"
#undef _BSS
#define _BSS "bss"
/* Type of cpu is stored in flags. */
#define F_MACHMASK 0xF000
/* Z80 COFF encodes the section alignment in the section header flags */
#define COFF_ALIGN_IN_SECTION_HEADER 1
#define COFF_ALIGN_IN_S_FLAGS 1
#define F_ALGNMASK 0x0F00
/* requires a power-of-two argument */
#define COFF_ENCODE_ALIGNMENT(B,S,X) \
((S).s_flags |= (((unsigned) (X) & 0xF) << 8), true)
/* result is a power of two */
#define COFF_DECODE_ALIGNMENT(X) (((X) >> 8) & 0xF)
#define Z80MAGIC 0x805A
#define Z80BADMAG(x) (((x).f_magic != Z80MAGIC))
/* Relocation directives. */
/* This format actually has more bits than we need. */
struct external_reloc
{
char r_vaddr[4];
char r_symndx[4];
char r_offset[4];
char r_type[2];
char r_stuff[2];
};
#define RELOC struct external_reloc
#define RELSZ 16
/* Z80 relocations. */
#define R_IMM16 0x01 /* 16 bit abs */
#define R_JR 0x02 /* jr 8 bit disp */
#define R_IMM32 0x11 /* 32 bit abs */
#define R_IMM8 0x22 /* 8 bit abs */
#define R_OFF8 0x32 /* 8 bit signed abs, for (i[xy]+d) */
#define R_IMM24 0x33 /* 24 bit abs */
#define R_IMM16BE 0x3A /* 16 bit abs, big endian */
#define R_BYTE0 0x34 /* first (lowest) 8 bits of multibyte value */
#define R_BYTE1 0x35 /* second 8 bits of multibyte value */
#define R_BYTE2 0x36 /* third 8 bits of multibyte value */
#define R_BYTE3 0x37 /* fourth (highest) 8 bits of multibyte value */
#define R_WORD0 0x38 /* lowest 16 bits of 32 or 24 bit value */
#define R_WORD1 0x39 /* highest 16 bits of 32 or 24 bit value */
