s502 assembler
A very simple assembler for the 6502 line of processors written in C
main.c
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1 #define __USE_MINGW_ANSI_STDIO 1
2 
3 #include "logging.h"
4 #include "pass_twothree.h"
5 #include "state.h"
6 #include "loadfile.h"
7 #include "pass_one.h"
8 #include "tokenFunc.h"
9 
23 int main(int argc, char** argv) {
24  logging_level(1);
25  State* state = state_new();
26  if (!state) goto ERR_INIT;
27  if (state_load_instr(state, "opcodes.csv") < 0) goto ERR_INIT;
28  if (state_parse_commandline(state, argc, argv) < 0) goto ERR_INIT;
29 
30  LOG(2, "Init done!\n");
31 
32  state->tokens = load_file(state->infile);
33  if (!state->tokens) goto ERR_COMP;
34  if (pass_one(state) < 0) goto ERR_COMP;
35  if (pass_two(state) < 0) goto ERR_COMP;
36  if (write_data(state) < 0) goto ERR_COMP;
37 
38 
39  LOG(2, "Now dunping the file: \n");
40  LOGDO(2, tokenslist_debug_print(state->tokens));
41  LOG(2, "Now the defined constants:\n");
42  LOGDO(2, map_debug_print(state->defines));
43  LOG(2, "And the labels:\n");
44  LOGDO(2, map_debug_print(state->labels));
45  LOG(2, "Cleaning up...\n");
46  state_free(state);
47 
48  return 0;
49 
50 ERR_INIT:
51  FAIL("Initialization failed!\n");
52  state_free(state);
53  return -1;
54 
55 ERR_COMP:
56  FAIL("Compilation failed!\n");
57  state_free(state);
58  state = NULL;
59  return -1;
60 }
State::labels
Map * labels
label locations
Definition: state.h:36
load_file
TokensList * load_file(char *name)
load and parse one file
Definition: loadfile.c:166
pass_two
int pass_two(State *s)
compilation pass 2
Definition: pass_twothree.c:19
State::infile
char infile[STATE_MAX_STRING_LEN]
input file name
Definition: state.h:44
loadfile.h
File reading step.
TokensList::tokenslist_debug_print
void tokenslist_debug_print(TokensList *list)
Pretty-print all tokens in a list.
Definition: tokenslist.c:89
LOG
#define LOG(LVL,...)
logging macro - works like printf
Definition: logging.h:28
pass_twothree.h
processing steps 2 and 3
logging_level
int logging_level(int level)
pseudo-global accessor
Definition: logging.c:6
State::tokens
TokensList * tokens
tokens
Definition: state.h:38
State
Compiler pseudo-global state.
Definition: state.h:32
State::state_load_instr
int state_load_instr(State *s, char *fname)
load instructions from a file
Definition: state.c:41
LOGDO
#define LOGDO(LVL, x)
Conditional macro. Wraps contents into a conditional based on log level.
Definition: logging.h:35
Map::map_debug_print
void map_debug_print(Map *map)
Print all key-value pairs of the map.
Definition: map.c:85
main
int main(int argc, char **argv)
standard libc main function
Definition: main.c:23
pass_one.h
processing step one
pass_one
int pass_one(State *s)
Compilation pass 1.
Definition: pass_one.c:19
State::defines
Map * defines
defined constants
Definition: state.h:34
State::state_new
State * state_new()
Create a new State object.
Definition: state.c:16
State::state_free
void state_free(State *s)
free a State object and all associated memory
Definition: state.c:48
write_data
int write_data(State *s)
compilation pass 3
Definition: pass_twothree.c:69
tokenFunc.h
Token type member methods.
State::state_parse_commandline
int state_parse_commandline(State *s, int argc, char **argv)
parse command line arguments and update state
Definition: state.c:81
logging.h
logging and fancy-printing
state.h
implement State class
FAIL
#define FAIL(...)
Fancy-print a fail (failed step). Works like printf.
Definition: logging.h:45
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