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compare: etc:182c7276807f8095902bc5602a036796a9d3141b
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etc:main
etc:audio
etc:android
etc:opcode-swap
etc:next
etc:aarch64
etc:1.0
etc:android-1.5
etc:android-1.4
etc:android-1.3
etc:android-1.2
etc:android-1.1

5 Commits
9564868464 ... 182c727680

Author SHA1 Message Date
Devine Lu Linvega 182c727680 (uxnasm) Report the correct line number in references 2024-04-03 20:35:24 -07:00
Devine Lu Linvega aae4446dfb (uxnasm) References print file and line number 2024-04-03 20:21:13 -07:00
Devine Lu Linvega ab2dd4082a (uxnasm) No context for findopcode 2024-04-03 19:46:50 -07:00
Devine Lu Linvega 4331025178 (uxnasm) Report unknown mode 2024-04-03 19:37:16 -07:00
Devine Lu Linvega a74df86d06 (uxnasm) Fixed issue with skipped last token in include 2024-04-03 19:20:10 -07:00
1 changed files with 35 additions and 31 deletions
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66
src/uxnasm.c
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@ -18,8 +18,8 @@ WITH REGARD TO THIS SOFTWARE.
typedef unsigned char Uint8;
typedef signed char Sint8;
typedef unsigned short Uint16;
typedef struct { char *name, rune, *content; Uint16 addr, refs; } Item;
typedef struct { int line; char *path; } Context;
typedef struct { char *name, rune, *data; Uint16 addr, refs, line; } Item;
static int ptr, length;
static char token[0x40], scope[0x40], lambda[0x05];
@ -37,12 +37,12 @@ static char ops[][4] = {
"ADD", "SUB", "MUL", "DIV", "AND", "ORA", "EOR", "SFT"
};
static int find(char *s, char t) { int i = 0; char c; while((c = *s++)) { if(c == t) return i; i++; } return -1; } /* chr in str */
static int shex(char *s) { int n = 0; char c; while((c = *s++)) { if(find(hexad, c) < 0) return -1; n = n << 4, n |= find(hexad, c); } return n; } /* str to hex */
static int scmp(char *a, char *b, int len) { int i = 0; while(a[i] == b[i]) if(!a[i] || ++i >= len) return 1; return 0; } /* str compare */
static char *copy(char *src, char *dst, char c) { while(*src && *src != c) *dst++ = *src++; *dst++ = 0; return dst; } /* str copy */
static char *save(char *s, char c) { char *o = dictnext; while((*dictnext++ = *s++) && *s); *dictnext++ = c; return o; } /* save to dict */
static char *join(char *a, char j, char *b) { char *res = dictnext; save(a, j), save(b, 0); return res; } /* join two str */
static int find(char *s, char t) { int i = 0; char c; while((c = *s++)) { if(c == t) return i; i++; } return -1; }
static int shex(char *s) { int n = 0; char c; while((c = *s++)) { if(find(hexad, c) < 0) return -1; n = n << 4, n |= find(hexad, c); } return n; }
static int scmp(char *a, char *b, int len) { int i = 0; while(a[i] == b[i]) if(!a[i] || ++i >= len) return 1; return 0; }
static char *copy(char *src, char *dst, char c) { while(*src && *src != c) *dst++ = *src++; *dst++ = 0; return dst; }
static char *save(char *s, char c) { char *o = dictnext; while((*dictnext++ = *s++) && *s); *dictnext++ = c; return o; }
static char *join(char *a, char j, char *b) { char *res = dictnext; save(a, j), save(b, 0); return res; }
#define ishex(x) (shex(x) >= 0)
#define isopc(x) (findopcode(x) || scmp(x, "BRK", 4))
@ -50,8 +50,9 @@ static char *join(char *a, char j, char *b) { char *res = dictnext; save(a, j),
#define writeshort(x) (writebyte(x >> 8, ctx) && writebyte(x & 0xff, ctx))
#define findlabel(x) finditem(x, labels, labels_len)
#define findmacro(x) finditem(x, macros, macro_len)
#define error_top(name, msg) !printf("%s: %s\n", name, msg)
#define error_asm(name) !printf("%s: %s in @%s, %s:%d.\n", name, token, scope, ctx->path, ctx->line)
#define error_top(id, msg) !printf("%s: %s\n", id, msg)
#define error_asm(id) !printf("%s: %s in @%s, %s:%d.\n", id, token, scope, ctx->path, ctx->line)
#define error_ref(id) !printf("%s: %s, %s:%d\n", id, r->name, r->data, r->line)
/* clang-format on */
@ -111,7 +112,7 @@ walkcomment(FILE *f, Context *ctx)
char c;
int depth = 1;
while(f && fread(&c, 1, 1, f)) {
if(c == 0xa) ctx->line += 1;
if(c == 0xa) ctx->line++;
if(c == '(') depth++;
if(c == ')' && --depth < 1) return 1;
}
@ -121,8 +122,8 @@ walkcomment(FILE *f, Context *ctx)
static int
walkmacro(Item *m, Context *ctx)
{
char c, *contentptr = m->content, *cptr = token;
while((c = *contentptr++)) {
char c, *dataptr = m->data, *cptr = token;
while((c = *dataptr++)) {
if(c < 0x21) {
*cptr++ = 0x00;
if(token[0] && !parse(token, NULL, ctx)) return 0;
@ -138,18 +139,18 @@ walkfile(FILE *f, Context *ctx)
{
char c, *cptr = token;
while(f && fread(&c, 1, 1, f)) {
if(c == 0xa) ctx->line += 1;
if(c < 0x21) {
*cptr++ = 0x00;
if(token[0] && !parse(token, f, ctx))
return 0;
if(token[0] && !parse(token, f, ctx)) return 0;
if(c == 0xa) ctx->line++;
cptr = token;
} else if(cptr - token < 0x3f)
*cptr++ = c;
else
return error_asm("Token too long");
}
return 1;
*cptr++ = 0;
return parse(token, f, ctx);
}
static char *
@ -173,11 +174,11 @@ makemacro(char *name, FILE *f, Context *ctx)
if(findmacro(name)) return error_asm("Macro is duplicate");
m = &macros[macro_len++];
m->name = push(name, 0);
m->content = dictnext;
m->data = dictnext;
while(f && fread(&c, 1, 1, f) && c != '{')
if(c == 0xa) ctx->line += 1;
if(c == 0xa) ctx->line++;
while(f && fread(&c, 1, 1, f)) {
if(c == 0xa) ctx->line += 1;
if(c == 0xa) ctx->line++;
if(c == '%') return error_top("Macro nested", name);
if(c == '{') depth++;
if(c == '}' && --depth) break;
@ -208,7 +209,7 @@ makelabel(char *name, int setscope, Context *ctx)
}
static int
makeref(char *label, char rune, Uint16 addr)
makeref(char *label, char rune, Uint16 addr, Context *ctx)
{
Item *r;
if(refs_len >= 0x1000) return error_top("References limit exceeded", label);
@ -222,6 +223,8 @@ makeref(char *label, char rune, Uint16 addr)
r->name = push(label, 0);
r->rune = rune;
r->addr = addr;
r->line = ctx->line;
r->data = ctx->path;
return 1;
}
@ -298,21 +301,22 @@ parse(char *w, FILE *f, Context *ctx)
{
Item *m;
switch(w[0]) {
case 0x0: return 1;
case '(': return walkcomment(f, ctx);
case '%': return makemacro(w + 1, f, ctx);
case '@': return makelabel(w + 1, 1, ctx);
case '&': return makelabel(w, 0, ctx);
case '}': return makelabel(makelambda(lambda_stack[--lambda_ptr]), 0, ctx);
case '#': return writehex(w, ctx);
case '_': return makeref(w + 1, w[0], ptr) && writebyte(0xff, ctx);
case ',': return makeref(w + 1, w[0], ptr + 1) && writebyte(findopcode("LIT"), ctx) && writebyte(0xff, ctx);
case '-': return makeref(w + 1, w[0], ptr) && writebyte(0xff, ctx);
case '.': return makeref(w + 1, w[0], ptr + 1) && writebyte(findopcode("LIT"), ctx) && writebyte(0xff, ctx);
case '_': return makeref(w + 1, w[0], ptr, ctx) && writebyte(0xff, ctx);
case ',': return makeref(w + 1, w[0], ptr + 1, ctx) && writebyte(findopcode("LIT"), ctx) && writebyte(0xff, ctx);
case '-': return makeref(w + 1, w[0], ptr, ctx) && writebyte(0xff, ctx);
case '.': return makeref(w + 1, w[0], ptr + 1, ctx) && writebyte(findopcode("LIT"), ctx) && writebyte(0xff, ctx);
case ':': printf("Deprecated rune %s, use =%s\n", w, w + 1); /* fall-through */
case '=': return makeref(w + 1, w[0], ptr) && writeshort(0xffff);
case ';': return makeref(w + 1, w[0], ptr + 1) && writebyte(findopcode("LIT2"), ctx) && writeshort(0xffff);
case '?': return makeref(w + 1, w[0], ptr + 1) && writebyte(0x20, ctx) && writeshort(0xffff);
case '!': return makeref(w + 1, w[0], ptr + 1) && writebyte(0x40, ctx) && writeshort(0xffff);
case '=': return makeref(w + 1, w[0], ptr, ctx) && writeshort(0xffff);
case ';': return makeref(w + 1, w[0], ptr + 1, ctx) && writebyte(findopcode("LIT2"), ctx) && writeshort(0xffff);
case '?': return makeref(w + 1, w[0], ptr + 1, ctx) && writebyte(0x20, ctx) && writeshort(0xffff);
case '!': return makeref(w + 1, w[0], ptr + 1, ctx) && writebyte(0x40, ctx) && writeshort(0xffff);
case '"': return writestring(w + 1, ctx);
case '~': return !assemble(w + 1) ? error_asm("Include missing") : 1;
case '$':
@ -323,7 +327,7 @@ parse(char *w, FILE *f, Context *ctx)
if(ishex(w)) return writehex(w, ctx);
if(isopc(w)) return writebyte(findopcode(w), ctx);
if((m = findmacro(w))) return walkmacro(m, ctx);
return makeref(w, ' ', ptr + 1) && writebyte(0x60, ctx) && writeshort(0xffff);
return makeref(w, ' ', ptr + 1, ctx) && writebyte(0x60, ctx) && writeshort(0xffff);
}
static int
@ -334,13 +338,13 @@ resolve(char *filename)
for(i = 0; i < refs_len; i++) {
Item *r = &refs[i], *l = findlabel(r->name);
Uint8 *rom = data + r->addr;
if(!l) return error_top("Label unknown", r->name);
if(!l) return error_ref("Label unknown");
switch(r->rune) {
case '_':
case ',':
*rom = rel = l->addr - r->addr - 2;
if((Sint8)data[r->addr] != rel)
return error_top("Relative reference too far", r->name);
return error_ref("Relative reference too far");
break;
case '-':
case '.':