acme/src/cpu.h
2020-05-31 13:07:40 +00:00

39 lines
1.5 KiB
C

// ACME - a crossassembler for producing 6502/65c02/65816/65ce02 code.
// Copyright (C) 1998-2020 Marco Baye
// Have a look at "acme.c" for further info
//
// CPU type stuff
#ifndef cpu_type_H
#define cpu_type_H
#include "config.h"
// CPU type structure definition
struct cpu_type {
// This function is not allowed to change GlobalDynaBuf
// because that's where the mnemonic is stored!
boolean (*keyword_is_mnemonic)(int);
int flags; // see below for bit meanings
char default_align_value;
};
#define CPUFLAG_INDIRECTJMPBUGGY (1u << 0) // warn if "jmp ($xxff)" is assembled
#define CPUFLAG_SUPPORTSLONGREGS (1u << 1) // allow "!al" and "!rl" pseudo opcodes
#define CPUFLAG_8B_AND_AB_NEED_0_ARG (1u << 2) // warn if "ane/lxa #$xx" uses non-zero arg
#define CPUFLAG_ISBIGENDIAN (1u << 3) // for 16/24/32-bit values, output msb first
#define CPUFLAG_DECIMALSUBTRACTBUGGY (1u << 4) // warn if "sed" is assembled
#define CPUFLAG_WARN_ABOUT_FF_PTR (1u << 5) // warn if MNEMO($ff) is assembled
// if cpu type and value match, set register length variable to value.
// if cpu type and value don't match, complain instead.
extern void vcpu_check_and_set_reg_length(boolean *var, boolean make_long);
// set default value for pass
extern void cputype_passinit(const struct cpu_type *cpu_type);
// lookup cpu type held in DynaBuf and return its struct pointer (or NULL on failure)
extern const struct cpu_type *cputype_find(void);
extern const char cputype_names[]; // string to show if cputype_find() returns NULL
#endif