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https://github.com/uffejakobsen/acme.git
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294fe25c36
Stack indexing can now be given either as ",s" or as ",sp" (only relevant for 65816 and 65CE02). git-svn-id: https://svn.code.sf.net/p/acme-crossass/code-0/trunk@78 4df02467-bbd4-4a76-a152-e7ce94205b78
89 lines
3.3 KiB
C
89 lines
3.3 KiB
C
// ACME - a crossassembler for producing 6502/65c02/65816/65ce02 code.
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// Copyright (C) 1998-2016 Marco Baye
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// Have a look at "acme.c" for further info
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//
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// Output stuff (FIXME - split into outbuf, outfile/format and vcpu parts)
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#ifndef output_H
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#define output_H
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#include <stdio.h>
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#include "config.h"
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// constants
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#define MEMINIT_USE_DEFAULT 256
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// segment flags
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#define SEGMENT_FLAG_OVERLAY (1u << 0) // do not warn about this segment overwriting another one
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#define SEGMENT_FLAG_INVISIBLE (1u << 1) // do not warn about other segments overwriting this one
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// current CPU state
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// FIXME - move vcpu struct definition to .c file and change other .c files' accesses to fn calls
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struct vcpu {
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const struct cpu_type *type; // current CPU type (default 6502) (FIXME - move out of struct again?)
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struct result pc; // current program counter (pseudo value)
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int add_to_pc; // add to PC after statement
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int a_is_long;
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int xy_are_long;
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};
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// variables
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extern struct vcpu CPU_state; // current CPU state FIXME - restrict visibility to .c file
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// Prototypes
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// alloc and init mem buffer (done later)
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extern void Output_init(signed long fill_value);
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// clear segment list and disable output
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extern void Output_passinit(void);
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// call this if really calling Output_byte would be a waste of time
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extern void Output_fake(int size);
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// Send low byte of arg to output buffer and advance pointer
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extern void (*Output_byte)(intval_t);
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// Output 8-bit value with range check
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extern void output_8(intval_t);
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// Output 16-bit value with range check big-endian
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extern void output_be16(intval_t);
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// Output 16-bit value with range check little-endian
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extern void output_le16(intval_t);
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// Output 24-bit value with range check big-endian
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extern void output_be24(intval_t);
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// Output 24-bit value with range check little-endian
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extern void output_le24(intval_t);
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// Output 32-bit value (without range check) big-endian
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extern void output_be32(intval_t);
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// Output 32-bit value (without range check) little-endian
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extern void output_le32(intval_t);
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// define default value for empty memory ("!initmem" pseudo opcode)
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// returns zero if ok, nonzero if already set
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extern int output_initmem(char content);
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// try to set output format held in DynaBuf. Returns zero on success.
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extern int outputfile_set_format(void);
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extern const char outputfile_formats[]; // string to show if outputfile_set_format() returns nonzero
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// if file format was already chosen, returns zero.
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// if file format isn't set, chooses CBM and returns 1.
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extern int outputfile_prefer_cbm_format(void);
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// try to set output file name held in DynaBuf. Returns zero on success.
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extern int outputfile_set_filename(void);
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// write smallest-possible part of memory buffer to file
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extern void Output_save_file(FILE *fd);
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// change output pointer and enable output
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extern void Output_start_segment(intval_t address_change, int segment_flags);
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// Show start and end of current segment
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extern void Output_end_segment(void);
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// set program counter to defined value (TODO - allow undefined!)
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extern void vcpu_set_pc(intval_t new_pc, int flags);
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// get program counter
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extern void vcpu_read_pc(struct result *target);
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// get size of current statement (until now) - needed for "!bin" verbose output
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extern int vcpu_get_statement_size(void);
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// adjust program counter (called at end of each statement)
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extern void vcpu_end_statement(void);
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#endif
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