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89 lines
3.2 KiB
C
89 lines
3.2 KiB
C
//
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// ACME - a crossassembler for producing 6502/65c02/65816 code.
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// Copyright (C) 1998-2006 Marco Baye
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// Have a look at "acme.c" for further info
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//
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// Global stuff - things that are needed by several modules
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#ifndef global_H
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#define global_H
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#include <stdio.h>
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#include <stdlib.h>
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#include "config.h"
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// Constants
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#define SF_FOUND_BLANK (1u) // statement had space or tab
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#define SF_IMPLIED_LABEL (2u) // statement had implied label def
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extern const char s_cbm[];
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// Error messages during assembly
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extern const char exception_cannot_open_input_file[];
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extern const char exception_missing_string[];
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extern const char exception_no_left_brace[];
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extern const char exception_no_memory_left[];
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extern const char exception_no_right_brace[];
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//extern const char exception_not_yet[];
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extern const char exception_syntax[];
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extern const char exception_number_out_of_range[];
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// Byte flags table
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extern const char Byte_flags[];
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#define BYTEFLAGS(c) (Byte_flags[(unsigned char) c])
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#define STARTS_KEYWORD (1u << 7) // Byte is allowed to start a keyword
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#define CONTS_KEYWORD (1u << 6) // Byte is allowed in a keyword
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#define BYTEIS_UPCASE (1u << 5) // Byte is upper case and can be
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// converted to lower case by OR-ing this bit(!)
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#define BYTEIS_SYNTAX (1u << 4) // special character for input syntax
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#define FOLLOWS_ANON (1u << 3) // preceding '-' are backward label
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// bits 2, 1 and 0 are unused
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// Variables
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extern node_t* pseudo_opcode_tree;// tree to hold pseudo opcodes
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// structures
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enum eos_t {
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SKIP_REMAINDER, // skip remainder of line - (after errors)
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ENSURE_EOS, // make sure there's nothing left in statement
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PARSE_REMAINDER, // parse what's left
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AT_EOS_ANYWAY, // actually, same as PARSE_REMAINDER
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};
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extern int pass_flags; // Pass flags and its bitfields
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// Do stuff that only has to be done once (only in first pass)
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#define PASS_ISFIRST (1u << 0)
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// Show errors when values are undefined (only in additional pass)
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#define PASS_ISERROR (1u << 1)
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extern int pass_count;
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extern int Process_verbosity;// Level of additional output
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extern char GotByte;// Last byte read (processed)
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// Global counters
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extern int pass_undefined_count;// "NeedValue" type errors in current pass
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extern int pass_real_errors; // Errors yet
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extern value_t pc_inc; // Increase PC by this amount after statement
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extern value_t segment_start; // Start of current segment
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extern value_t segment_max; // Highest address segment may use
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extern signed long max_errors; // errors before giving up
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extern void* autofree_list_pass; // linked list, holds malloc blocks
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// Macros for skipping a single space character
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#define SKIPSPACE() do {if(GotByte == ' ') GetByte();} while(0)
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#define NEXTANDSKIPSPACE() do {if(GetByte() == ' ') GetByte();} while(0)
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// Prototypes
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extern inline void* safe_malloc(size_t);
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extern void* autofree_malloc(size_t, void**);
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// Macro for claiming auto-freed memory blocks
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#define ALLOC_PASS(Size) autofree_malloc(Size, &autofree_list_pass)
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extern void autofree_free(void**);
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extern void Parse_until_eob_or_eof(void);
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extern int Parse_optional_block(void);
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extern void Throw_warning(const char*);
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extern void Throw_error(const char*);
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extern void Throw_serious_error(const char*);
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extern void Bug_found(const char*, int);
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#endif
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