etc/uxn
0
0
Fork 0
mirror of https://git.sr.ht/~rabbits/uxn synced 2024-11-16 19:15:10 +00:00
Code Issues Projects Releases Wiki Activity

(uxnasm) push cap char

Browse source
This commit is contained in:
Devine Lu Linvega 2024-03-27 10:27:17 -07:00
parent 278a4391c9
commit 0db728a46b
1 changed files with 7 additions and 6 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

13
src/uxnasm.c
View file

@ -59,11 +59,11 @@ static int scmp(char *a, char *b, int len) { int i = 0; while(a[i] == b[i]) if
static int slen(char *s) { int i = 0; while(s[i]) i++; return i; } /* str length */
static char *scpy(char *src, char *dst, int len) { int i = 0; while((dst[i] = src[i]) && i < len - 2) i++; dst[i + 1] = '\0'; return dst; } /* str copy */
static char *scat(char *dst, char *src) { char *ptr = dst + slen(dst); while(*src) *ptr++ = *src++; *ptr = '\0'; return dst; } /* str cat */
static char *push(char *s) { char *ptr = storenext; while((*storenext++ = *s++)); *storenext++ = 0; return ptr; } /* save str */
static char *push(char *s, char c) { char *ptr = storenext; while((*storenext++ = *s++)); *storenext++ = c; return ptr; } /* save str */
#define isopcode(x) (findopcode(x) || scmp(x, "BRK", 4))
#define writeshort(x) (writebyte(x >> 8) && writebyte(x & 0xff))
#define makesublabel(x) (push(scat(scat(scpy(scope, sublabel, 0x40), "/"), x)))
#define makesublabel(x) push(scat(scat(scpy(scope, sublabel, 0x40), "/"), x), 0)
#define error_top(name, msg) !!fprintf(stderr, "%s: %s\n", name, msg)
#define error_asm(name) !!fprintf(stderr, "%s: %s in @%s, %s:%d.\n", name, token, scope, source, p.line)
@ -145,7 +145,7 @@ makemacro(char *name, FILE *f)
if(isopcode(name)) return error_asm("Macro is opcode");
if(p.macro_len == 0x100) return error_asm("Macros limit exceeded");
m = &p.macros[p.macro_len++];
m->name = push(name);
m->name = push(name, 0);
while(fscanf(f, "%63s", word) == 1) {
if(word[0] == '{') continue;
if(word[0] == '}') break;
@ -154,6 +154,7 @@ makemacro(char *name, FILE *f)
if(!walkcomment(word, f)) return error_asm("Comment error");
continue;
}
scat(scat(m->content, word), " ");
}
return 1;
@ -174,7 +175,7 @@ makelabel(char *name, int setscope)
l = &p.labels[p.label_len++];
l->addr = p.ptr;
l->refs = 0;
l->name = push(name);
l->name = push(name, 0);
if(setscope) {
int i = 0;
while(name[i] != '/' && i < 0x3e && (scope[i] = name[i])) i++;
@ -216,11 +217,11 @@ addref(char *label, char rune, Uint16 addr)
r = &p.refs[p.refs_len++];
if(label[0] == '{') {
p.lambda_stack[p.lambda_ptr++] = p.lambda_len;
r->name = push(makelambda(p.lambda_len++));
r->name = push(makelambda(p.lambda_len++), 0);
} else if(label[0] == '&' || label[0] == '/') {
r->name = makesublabel(label + 1);
} else
r->name = push(label);
r->name = push(label, 0);
r->rune = rune;
r->addr = addr;
return 1;