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uxnasm errors-out if too many macros

This commit is contained in:
Claude Heiland-Allen 2021-10-26 16:59:58 +01:00 committed by neauoire
parent a373939544
commit 33e77e261c
1 changed files with 6 additions and 3 deletions
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9
src/uxnasm.c
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@ -15,6 +15,7 @@ WITH REGARD TO THIS SOFTWARE.
#define LENGTH 0x10000 #define LENGTH 0x10000
#define LABELS 512 #define LABELS 512
#define MACROS 256
typedef unsigned char Uint8; typedef unsigned char Uint8;
typedef signed char Sint8; typedef signed char Sint8;
@ -31,10 +32,10 @@ typedef struct {
} Label; } Label;
typedef struct { typedef struct {
Uint8 data[LENGTH], mlen; Uint8 data[LENGTH];
Uint16 ptr, length, llen; Uint16 ptr, length, llen, mlen;
Label labels[LABELS]; Label labels[LABELS];
Macro macros[256]; Macro macros[MACROS];
} Program; } Program;
Program p; Program p;
@ -158,6 +159,8 @@ makemacro(char *name, FILE *f)
return error("Macro name is hex number", name); return error("Macro name is hex number", name);
if(findopcode(name) || scmp(name, "BRK", 4) || !slen(name) || scmp(name, "include", 8)) if(findopcode(name) || scmp(name, "BRK", 4) || !slen(name) || scmp(name, "include", 8))
return error("Macro name is invalid", name); return error("Macro name is invalid", name);
if(p.mlen == MACROS)
return error("Too many macros", name);
m = &p.macros[p.mlen++]; m = &p.macros[p.mlen++];
scpy(name, m->name, 64); scpy(name, m->name, 64);
while(fscanf(f, "%63s", word) == 1) { while(fscanf(f, "%63s", word) == 1) {