~rabbits/lin6

d5b3bb7cc2887cb25050f017a09ebb6c963222e6 — Devine Lu Linvega 3 years ago 4b77d7e 
v1.3
patch browse .tar.gz 
5 files changed, 486 insertions(+), 472 deletions(-)

M README
M build.sh
M lin6.c
A linted.asm
M source.asm

M README => README +7 -7
@@ 18,28 18,28 @@ Options:

        -?         Show help
        -v         Show version
        -i         Inplace edit files
        -d         Show debug

--------------------------------------------------------------
Rules
--------------------------------------------------------------

  Variable names must always be lowercase.
  Variable names are always padded to tab1.
  Variable length are always padded to col25.
  Variable comments are always padded to col32.
  Constant names must always be uppercase.
  Constant names are always padded to tab1.
  Constant length are always padded to col21.
  Constant comments are always padded to col32.
  Label names must always be capitalized.
  Label names aalways end with :.
  Label names always end with :.
  Label names are always preceeded with a linebreak.
  Label comments are never padded.
  Directive names are always padded to col2.
  Directive names are always padded to tab1.
  Directive names are always lowercase.
  Directive comments are never padded.
  Opcode names are always uppercase.
  Opcode names are always padded to col2.
  Opcode names are always padded to tab1.
  Opcode comments are always padded to col32.
  Inline comments are always padded to col2.
  Inline comments are always padded to tab1.
  Spacing comments are always preceeded and followed with a linebreak.
  
\ No newline at end of file


M build.sh => build.sh +4 -7
@@ 1,7 1,9 @@
#!/bin/bash

# Remove old
rm ./lin6

# Format
clang-format -i lin6.c

# Gnu/Linux


@@ 13,10 15,5 @@ cc -std=c89 -DDEBUG -Wall -Wpedantic -Wshadow -Wextra -Werror=implicit-int -Werr
# Plan9
# pcc lin6.c -o lin6

./lin6
./lin6 -?
./lin6 -v
./lin6 source.asm
./lin6 -i source.asm
./lin6 -i -d source.asm

# Run
./lin6 source.asm > linted.asm


M lin6.c => lin6.c +406 -422
@@ 1,39 1,36 @@
/* Lin6
  Version 1.2
/* 
  Lin6
  Version 1.3
  https://wiki.xxiivv.com/lin6
*/

/* Rules:
  Variable names must always be lowercase.
  Variable names are always padded to tab1.
  Variable length are always padded to col25.
  Variable comments are always padded to col32.
  Constant names must always be uppercase.
  Constant names are always padded to tab1.
  Constant length are always padded to col21.
  Constant comments are always padded to col32.
  Label names must always be capitalized.
  Label names aalways end with :.
  Label names always end with :.
  Label names are always preceeded with a linebreak.
  Label comments are never padded.
  Directive names are always padded to col2.
  Directive names are always padded to tab1.
  Directive names are always lowercase.
  Directive comments are never padded.
  Opcode names are always uppercase.
  Opcode names are always padded to col2.
  Opcode names are always padded to tab1.
  Opcode comments are always padded to col32.
  Inline comments are always padded to col2.
  Inline comments are always padded to tab1.
  Spacing comments are always preceeded and followed with a linebreak.
*/

#include <ctype.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>

#define VERSION "1.2"
#define VERSION "1.3"
#define BUFLEN 512

typedef enum { false, true } bool;

char *OPCODES[] = {"ADC", "AND", "ASL", "BCC", "BCS", "BEQ", "BIT", "BMI",
char* OPCODES[] = {"ADC", "AND", "ASL", "BCC", "BCS", "BEQ", "BIT", "BMI",
                   "BNE", "BPL", "BRK", "BVC", "BVS", "CLC", "CLD", "CLI",
                   "CLV", "CMP", "CPX", "CPY", "DEC", "DEX", "DEY", "EOR",
                   "INC", "INX", "INY", "JMP", "JSR", "LDA", "LDX", "LDY",


@@ 41,410 38,397 @@ char *OPCODES[] = {"ADC", "AND", "ASL", "BCC", "BCS", "BEQ", "BIT", "BMI",
                   "ROR", "RTI", "RTS", "SBC", "SEC", "SED", "SEI", "STA",
                   "STX", "STY", "TAX", "TAY", "TSX", "TXA", "TXS", "TYA"};

void substr(char *src, char *dest, int from, int to) {
  memcpy(dest, src + from, to);
  dest[to] = '\0';
}

void trimstr(char *src, char *dest) {
  /* leading whitespace */
  int a, b, len = strlen(src) + 1;
  for (a = 0; a < len; a++) {
    if (src[a] != ' ' && src[a] != '\t') {
      break;
    }
  }
  /* traling whitespace */
  for (b = 2; b < len; b++) {
    if (src[len - b] != ' ' && src[len - b] != '\n') {
      break;
    }
  }
  substr(src, dest, a, len - b - a + 1);
}

void fillstr(char *src, int limit, char c) {
  int i, len = strlen(src);
  for (i = len; i < limit; i++) {
    src[i] = c;
  }
  src[limit] = '\0';
}

void swapcstr(char *src, char a, char b) {
  int i, len = strlen(src);
  for (i = 0; i < len; i++) {
    src[i] = src[i] == a ? b : src[i];
  }
}

void cpystr(char *src, char *dest) {
  int i, len = strlen(src);
  for (i = 0; i < len; i++) {
    dest[i] = src[i];
  }
  dest[len] = '\0';
}

void ucstr(char *src) {
  int i, len = strlen(src);
  for (i = 0; i < len; i++) {
    src[i] = toupper(src[i]);
  }
}

void lcstr(char *src) {
  int i, len = strlen(src);
  for (i = 0; i < len; i++) {
    src[i] = tolower(src[i]);
  }
}

int index_of_comment(char *src) {
  int i, len = strlen(src);
  for (i = 0; i < len; i++) {
    if (src[i] == ';') {
      return i;
    }
  }
  return -1;
}

bool opcode_exists(char *opcode) {
  int i;
  for (i = 0; i < 56; i++) {
    if (strcmp(OPCODES[i], opcode) == 0) {
      return true;
    }
  }
  return false;
}

bool file_exists(char *filename) {
  FILE *file = fopen(filename, "r");
  if (file != NULL) {
    fclose(file);
    return true;
  }
  return false;
}

void set_line_key(char *src, char *dest) {
  int i, len = strlen(src);
  for (i = 0; i < len; i++) {
    if (src[i] == ' ') {
      break;
    }
  }
  substr(src, dest, 0, i);
  trimstr(dest, dest);
}

void set_line_value(char *src, char *dest) {
  bool step = false;
  int i, comment = index_of_comment(src), len = strlen(src);
  if (comment > -1) {
    len = comment;
  }
  for (i = 0; i < len; i++) {
    if (src[i] != ' ' && step == true) {
      break;
    } else if (src[i] == ' ') {
      step = true;
    }
  }
  substr(src, dest, i, len - i);
  trimstr(dest, dest);
}

void set_line_comment(char *src, char *dest) {
  int i, len = strlen(src);
  for (i = 0; i < len; i++) {
    if (src[i] == ';') {
      break;
    }
  }
  substr(src, dest, i, len - i);
  trimstr(dest, dest);
}

bool has_comment(char *line) {
  int i, len = strlen(line);
  for (i = 0; i < len; i++) {
    if (line[i] == ';') {
      return true;
    }
  }
  return false;
}

bool is_capital(char *str) { return str[0] == toupper(str[0]); }

bool is_lower(char *str) {
  int i, len = strlen(str);
  for (i = 0; i < len; i++) {
    if (str[i] != tolower(str[i])) {
      return false;
    }
  }
  return true;
}

bool is_upper(char *str) {
  int i, len = strlen(str);
  for (i = 0; i < len; i++) {
    if (str[i] != toupper(str[i])) {
      return false;
    }
  }
  return true;
}

bool is_label(char *line) {
  int i, len = strlen(line);
  for (i = 0; i < len; i++) {
    if (line[i] == ' ' || line[i] == ';') {
      return false;
    }
    if (line[i] == ':') {
      return true;
    }
  }
  return false;
}

bool is_opcode(char *line) {
  char opcode[4];
  substr(line, opcode, 0, 3);
  ucstr(opcode);
  return opcode_exists(opcode);
}

bool is_directive(char *line) { return line[0] == '.'; }

bool is_spacer_comment(char *line) { return line[0] == ';' && line[1] == ';'; }

bool is_inline_comment(char *line) { return line[0] == ';' && line[1] == ' '; }

bool is_variable(char *line) {
  int i, len = strlen(line);
  for (i = 0; i < len; i++) {
    if (line[i] == '.' && line[i + 1] == 'd' && line[i + 2] == 's' &&
        line[i + 3] == 'b') {
      return true;
    }
  }
  return false;
}

bool is_constant(char *line) {
  int i, len = strlen(line);
  for (i = 0; i < len; i++) {
    if (line[i] == '.' && line[i + 1] == 'e' && line[i + 2] == 'q' &&
        line[i + 3] == 'u') {
      return true;
    }
  }
  return false;
}

void save(char *filepath, char *output, bool do_inplace) {
  if (do_inplace) {
    FILE *fw = fopen(filepath, "w");
    fprintf(fw, "%s", output);
    fclose(fw);
  } else {
    printf("%s\n", output);
  }
}

void lint(char *filepath, char *output, bool do_debug) {
  FILE *fr = fopen(filepath, "r");
  int id = 0, len, count = 0, opcodes = 0, directives = 0, spacers = 0,
      labels = 0, variables = 0, constants = 0, comments = 0;
  bool skipped_last = false;
  char line[BUFLEN];
  char trimed[BUFLEN];
  while (fgets(line, BUFLEN, fr)) {
    id++;
    trimstr(line, trimed);
    swapcstr(trimed, '\t', ' ');
    len = strlen(trimed);
    if (len < 3) {
      continue;
    }
    if (is_label(trimed)) {
      char key[BUFLEN];
      char comment[BUFLEN];
      set_line_key(trimed, key);
      set_line_comment(trimed, comment);
      if (!is_capital(key)) {
        printf("Lin6: Label %s not capitalized, at %s:%d.\n", key, filepath,
               id);
      }
      if (key[0] != '@' && !skipped_last) {
        strcat(output, "\n");
      }
      if (has_comment(line)) {
        strcat(output, key);
        strcat(output, " ");
        strcat(output, comment);
      } else {
        strcat(output, key);
      }
      skipped_last = false;
      labels++;
    } else if (is_opcode(trimed)) {
      char key[BUFLEN];
      char value[BUFLEN];
      char comment[BUFLEN];
      set_line_key(trimed, key);
      set_line_value(trimed, value);
      set_line_comment(trimed, comment);
      ucstr(key);
      strcat(output, "\t");
      strcat(output, key);
      strcat(output, " ");
      if (has_comment(line)) {
        fillstr(value, 24, ' ');
        strcat(output, value);
        strcat(output, " ");
        strcat(output, comment);
      } else {
        strcat(output, value);
      }
      skipped_last = false;
      opcodes++;
    } else if (is_directive(trimed)) {
      char key[BUFLEN];
      char value[BUFLEN];
      char comment[BUFLEN];
      set_line_key(trimed, key);
      set_line_value(trimed, value);
      set_line_comment(trimed, comment);
      strcat(output, "\t");
      strcat(output, key);
      strcat(output, " ");
      if (has_comment(line)) {
        strcat(output, value);
        strcat(output, " ");
        strcat(output, comment);
      } else {
        strcat(output, value);
      }
      skipped_last = false;
      directives++;
    } else if (is_inline_comment(trimed)) {
      strcat(output, "\t");
      strcat(output, trimed);
      skipped_last = false;
      comments++;
    } else if (is_spacer_comment(trimed)) {
      strcat(output, "\n");
      strcat(output, trimed);
      strcat(output, "\n");
      skipped_last = true;
      spacers++;
    } else if (is_variable(trimed)) {
      char key[BUFLEN];
      char value[BUFLEN];
      char comment[BUFLEN];
      set_line_key(trimed, key);
      set_line_value(trimed, value);
      set_line_comment(trimed, comment);
      fillstr(key, 24, ' ');
      if (!is_lower(key)) {
        printf("Lin6: Variable %s not lowercase, at %s:%d.\n", key, filepath,
               id);
      }
      strcat(output, key);
      strcat(output, value);
      strcat(output, " ");
      strcat(output, comment);
      skipped_last = false;
      variables++;
    } else if (is_constant(trimed)) {
      char key[BUFLEN];
      char value[BUFLEN];
      char comment[BUFLEN];
      set_line_key(trimed, key);
      set_line_value(trimed, value);
      set_line_comment(trimed, comment);
      fillstr(key, 20, ' ');
      if (!is_upper(key)) {
        printf("Lin6: Constant %s not uppercase, at %s:%d.\n", key, filepath,
               id);
      }
      strcat(output, key);
      strcat(output, value);
      strcat(output, " ");
      strcat(output, comment);
      skipped_last = false;
      constants++;
    } else {
      printf("Lin6: Unknown line-type, at %s:%d.\n", filepath, id);
      strcat(output, line);
    }
    strcat(output, "\n");
    count++;
  }
  if (do_debug) {
    printf("Lin6 debug: %d lines: \n", count);
    printf("\t%d labels\n", labels);
    printf("\t%d opcodes\n", opcodes);
    printf("\t%d directives\n", directives);
    printf("\t%d spacers\n", spacers);
    printf("\t%d variables\n", variables);
    printf("\t%d constants\n", constants);
  }
  fclose(fr);
}

void show_version(void) { puts("Lin6 " VERSION); }

void show_help(void) {
  show_version();
  puts("");
  puts("A tool to format 6502 assembly code.\n");
  puts("Usage:  Lin6 [-options] [<file> ...]\n");
  puts("\t-?\tShow this help");
  puts("\t-v\tShow version");
  puts("\t-i\tInplace edit files");
  puts("\t-d\tShow debug\n");
  puts("See README for more info.\n");
}

int main(int argc, char *argv[]) {
  bool do_debug = false, do_inplace = false;
  int i;
  if (argc < 2) {
    show_help();
    exit(0);
  }
  for (i = 1; i < argc; i++) {
    if (argv[i][1] == '?') {
      show_help();
      exit(0);
    } else if (argv[i][1] == 'v') {
      show_version();
      exit(0);
    }
    /* read flags */
    if (argv[i][1] == 'd') {
      do_debug = true;
    } else if (argv[i][1] == 'i') {
      do_inplace = true;
    }
    /* do files */
    else {
      char linted[51200];
      if (!file_exists(argv[i])) {
        printf("Lin6: File %s not found\n", argv[i]);
        exit(0);
      }
      lint(argv[i], linted, do_debug);
      save(argv[i], linted, do_inplace);
    }
  }
  return 0;
}
\ No newline at end of file
int skipped = 0;

int
cisp(char c)
{
	return c == ' ' || c == '\t' || c == '\n' || c == '\r';
}

int
clca(int c)
{
	return c >= 'A' && c <= 'Z' ? c + ('a' - 'A') : c;
}

int
cuca(char c)
{
	return c >= 'a' && c <= 'z' ? c - ('a' - 'A') : c;
}

int
ciuc(char c)
{
	return c == cuca(c);
}

int
cilc(char c)
{
	return c == clca(c);
}

char*
sstr(char* src, char* dest, int from, int to)
{
	int i;
	char *a = (char*)src + from, *b = (char*)dest;
	for(i = 0; i < to; i++)
		b[i] = a[i];
	dest[to] = '\0';
	return dest;
}

int
slen(char* s)
{
	int n = 0;
	while(s[n] != '\0' && s[++n])
		;
	return n;
}

int
silc(char* s)
{
	int i;
	for(i = 0; i < slen(s); i++)
		if(!cilc(s[i]))
			return 0;
	return 1;
}

int
siuc(char* s)
{
	int i;
	for(i = 0; i < slen(s); i++)
		if(!ciuc(s[i]))
			return 0;
	return 1;
}

int
cpos(char* s, char c)
{
	int i;
	for(i = 0; i < slen(s); i++)
		if(s[i] == c)
			return i;
	return -1;
}

char*
scat(char* dest, const char* src)
{
	char* ptr = dest + slen(dest);
	while(*src != '\0')
		*ptr++ = *src++;
	*ptr = '\0';
	return dest;
}

int
scmp(char* a, char* b)
{
	int i, l = slen(a);
	if(l != slen(b))
		return 0;
	for(i = 0; i < l; ++i)
		if(a[i] != b[i])
			return 0;
	return 1;
}

char*
suca(char* s)
{
	int i;
	for(i = 0; i < slen(s); i++)
		s[i] = cuca(s[i]);
	return s;
}

char*
slca(char* s)
{
	int i;
	for(i = 0; i < slen(s); i++)
		s[i] = clca(s[i]);
	return s;
}

char*
strm(char* s)
{
	char* end;
	while(cisp(*s))
		s++;
	if(*s == 0)
		return s;
	end = s + slen(s) - 1;
	while(end > s && cisp(*end))
		end--;
	end[1] = '\0';
	return s;
}

int
spos(char* a, char* b)
{
	int i, j, alen = slen(a), blen = slen(b);
	for(i = 0; i < alen; i++) {
		for(j = 0; j < blen; j++) {
			if(a[i + j] == '\0')
				return -1;
			if(a[i + j] != b[j])
				break;
			if(j == blen - 1)
				return i;
		}
	}
	return -1;
}

char*
scpy(char* src, char* dest)
{
	int i = 0;
	while((dest[i] = src[i]) != '\0')
		i++;
	return dest;
}

/* old */

void
setkey(char* src, char* dst)
{
	sstr(src, dst, 0, cpos(src, ' ') > 0 ? cpos(src, ' ') : slen(src));
}

void
setval(char* src, char* dst)
{
	int step = 0, i, comment = cpos(src, ';'), len = slen(src);
	if(comment > -1)
		len = comment;
	for(i = 0; i < len; i++) {
		if(src[i] != ' ' && step == 1)
			break;
		else if(src[i] == ' ')
			step = 1;
	}
	sstr(src, dst, i, len - i);
	scpy(strm(dst), dst);
}

void
setcmt(char* src, char* dst)
{
	if(cpos(src, ';') > 0)
		sstr(src, dst, cpos(src, ';'), slen(src) - cpos(src, ';'));
	else
		scpy("", dst);
	scpy(strm(dst), dst);
}

int
islabel(char* line)
{
	int i;
	for(i = 0; i < slen(line); i++) {
		if(line[i] == ' ' || line[i] == ';')
			return 0;
		if(line[i] == ':')
			return 1;
	}
	return 0;
}

int
isopcode(char* line)
{
	int i;
	char opcode[4];
	suca(sstr(line, opcode, 0, 3));
	for(i = 0; i < 56; i++)
		if(scmp(OPCODES[i], opcode))
			return 1;
	return 0;
}

int
iscomment(char* line)
{
	return line[0] == ';';
}

int
isdirective(char* line)
{
	return line[0] == '.';
}

int
isvariable(char* line)
{
	return spos(line, ".dsb") > 0;
}

int
isconstant(char* line)
{
	return spos(line, ".equ") > 0;
}

void
dolabel(char* src)
{
	char key[BUFLEN], cmt[BUFLEN];
	setkey(src, key);
	setcmt(src, cmt);
	key[0] = cuca(key[0]);
	if(key[0] == '@' || skipped)
		printf("%s %s\n", key, cmt);
	else
		printf("\n%s %s\n", key, cmt);
	skipped = 0;
}

void
doopcode(char* src)
{
	char key[BUFLEN], val[BUFLEN], cmt[BUFLEN];
	setkey(src, key);
	suca(key);
	setval(src, val);
	setcmt(src, cmt);
	if(slen(cmt) > 1)
		printf("\t%s %-30s %s\n", key, val, cmt);
	else
		printf("\t%s %s\n", key, val);
	skipped = 0;
}

void
docomment(char* src)
{
	if(src[0] == src[1]) {
		printf("\n%s\n\n", src);
		skipped = 1;
	} else {
		printf("\t%s\n", src);
		skipped = 0;
	}
}

void
dodirective(char* src)
{
	char key[BUFLEN], val[BUFLEN], cmt[BUFLEN];
	setkey(src, key);
	slca(key);
	setval(src, val);
	setcmt(src, cmt);
	if(slen(cmt) > 1)
		printf("\t%s %-28s %s\n", key, val, cmt);
	else
		printf("\t%s %s %s\n", key, val, cmt);
	skipped = 0;
}

void
dovariable(char* src)
{
	char key[BUFLEN], val[BUFLEN], cmt[BUFLEN];
	setkey(src, key);
	slca(key);
	setval(src, val);
	setcmt(src, cmt);
	printf("\t%-23s %-10s %s\n", key, val, cmt);
	skipped = 0;
}

void
doconstant(char* src)
{
	char key[BUFLEN], val[BUFLEN], cmt[BUFLEN];
	setkey(src, key);
	suca(key);
	setval(src, val);
	setcmt(src, cmt);
	printf("\t%-23s %-10s %s\n", key, val, cmt);
	skipped = 0;
}

/* IO */

void
lint(FILE* f)
{
	char line[BUFLEN], trimed[BUFLEN];
	while(fgets(line, BUFLEN, f)) {
		scpy(strm(line), trimed);
		if(slen(trimed) < 3)
			continue;
		if(islabel(trimed))
			dolabel(trimed);
		else if(isopcode(trimed))
			doopcode(trimed);
		else if(iscomment(trimed))
			docomment(trimed);
		else if(isdirective(trimed))
			dodirective(trimed);
		else if(isvariable(trimed))
			dovariable(trimed);
		else if(isconstant(trimed))
			doconstant(trimed);
		else
			printf("%s\n", line);
	}
	fclose(f);
}

int
version(void)
{
	puts("Lin6 " VERSION);
	return 0;
}

int
help(void)
{
	version();
	puts("");
	puts("A tool to format 6502 assembly code.\n");
	puts("Usage:  Lin6 [-options] [<file> ...]\n");
	puts("\t-?\tShow this help");
	puts("\t-v\tShow version");
	puts("See README for more info.\n");
	return 0;
}

int
main(int argc, char* argv[])
{
	FILE* f;
	int i;
	if(argc < 2)
		return help();
	for(i = 1; i < argc; i++) {
		if(argv[i][1] == '?')
			return help();
		else if(argv[i][1] == 'v')
			return version();
		else {
			f = fopen(argv[i], "r");
			if(f != NULL)
				lint(f);
		}
	}
	return 0;
}


A linted.asm => linted.asm +46 -0
@@ 0,0 1,46 @@

;; Variables

	.enum $0000                        ; Directive comment
	pos_x                   .dsb 1     ; Variable comment
	pos_y                   .dsb 1     
	.ende  

;; Constants

	SPRITE_Y                .equ $0200 ; Constant comment
	SPRITE_XY               .equ $0203 

RESET: 
	NOP 

Forever: 
	JMP Forever

NMI: 
	RTI 

;; Routines

CheckCollision: ; Routine comment
	LDA pos_y
	CMP #$88                           ; Opcode comment
	BCC @done
	; Inline comment
	LDA #$88
	STA pos_y
@done: 
	RTS 

;; Tables

Table: 
	.db $40,$46,$4c,$52,$58,$5e,$63,$68 

;; Vectors

	.pad $FFFA 
	.dw NMI 
	.dw RESET 
	.dw 0 
	.incbin "src/sprite.chr" 


M source.asm => source.asm +23 -36
@@ 1,46 1,33 @@

;; Variables

	.enum $0000 ; Directive comment
pos_x                   .dsb 1 ; Variable comment
pos_y                   .dsb 1 
	.ende 

 .enum $0000            ; Directive comment
pos_x               .dsb 1   ; Variable comment
pos_y       .dsb 1
       .ende
;; Constants

SPRITE_Y            .equ $0200 ; Constant comment
SPRITE_XY           .equ $0203 

SPRITE_Y       .equ $0200    ; Constant comment
SPRITE_XY   .equ $0203
RESET:
	NOP 

      NOP
Forever:
	JMP Forever

  JMP    Forever
NMI:
	RTI 

  RTI
;; Routines

CheckCollision: ; Routine comment
	LDA pos_y
	CMP #$88                     ; Opcode comment
	BCC @done
	; Inline comment
	LDA #$88
	STA pos_y
CheckCollision:  ; Routine comment
  LDA   pos_y
  CMP  #$88            ; Opcode comment
      BCC @done
  ; Inline comment
  lda #$88
  sta   pos_y
@done:
	RTS 

  RTS
;; Tables

Table:
	.db $40,$46,$4c,$52,$58,$5e,$63,$68

   .db $40,$46,$4c,$52,$58,$5e,$63,$68
;; Vectors

	.pad $FFFA
	.dw NMI
	.dw RESET
	.dw 0
	.incbin "src/sprite.chr"
  .pad $FFFA
       .dw NMI
  .dw RESET
    .dw 0
  .incbin "src/sprite.chr"