symtab: add symdef()

Author: tcort

symtab.c

@@ -23,9 +23,16 @@ SOFTWARE.
 #include <stddef.h>
 #include <string.h>
 
+#include "const.h"
 #include "symtab.h"
 #include "types.h"
 
+void symdef(symtab_t *symtab, char *label, size_t lineno) {
+	strncpy(symtab->symbols[symtab->sp].label, label, LBLLN);
+	symtab->symbols[symtab->sp].lineno = lineno;
+	symtab->sp++;
+}
+
 size_t symfind(symtab_t *symtab, char *label) {
 	size_t i;
 

symtab.h

@@ -26,6 +26,7 @@ SOFTWARE.
 #include <stddef.h>
 #include "types.h"
 
+void symdef(symtab_t *symtab, char *label, size_t lineno);
 size_t symfind(symtab_t *symtab, char *label);
 
 #endif

vm.c

@@ -102,9 +102,7 @@ void load(vm_t *vm) {
 
 		/* it's a label */
 		if (line[0] != '#' && line[0] != ' ') {
-			strncpy(vm->symtab.symbols[vm->symtab.sp].label, line, LBLLN);
-			vm->symtab.symbols[vm->symtab.sp].lineno = vm->program.sp;
-			vm->symtab.sp++;
+			symdef(&vm->symtab, line, vm->program.sp);
 		}
 		/* record line for future reference */
 		strncpy(vm->program.lines[vm->program.sp], line, LNLEN);