#include "casl2.h"
#include "assemble.h"
-LABELTAB *labels[LABELTABSIZE];
+int labelcnt = 0; /* ラベル数 */
+LABELTAB *labels[LABELTABSIZE]; /* ラベル表 */
+
+/* プログラム名とラベルに対応するハッシュ値を返す */
+unsigned labelhash(const char *prog, const char *label)
+{
+ HKEY *keys[2];
+ int i = 0;
+ if(prog != NULL) {
+ keys[i] = malloc(sizeof(HKEY));
+ keys[i]->type = CHARS;
+ keys[i++]->val.s = strdup(prog);
+ }
+ keys[i] = malloc(sizeof(HKEY));
+ keys[i]->type = CHARS;
+ keys[i]->val.s = strdup(label);
+ /* ハッシュ値を返す */
+ return hash(i+1, keys, LABELTABSIZE);
+}
/* ラベル表からアドレスを検索する */
-WORD getlabel(const char *label, const char *prog)
+WORD getlabel(const char *prog, const char *label)
{
LABELTAB *np;
-
- for(np = labels[hash(label, LABELTABSIZE)]; np != NULL; np = np->next) {
- if(strcmp(label, np->label) == 0) {
+ for(np = labels[labelhash(prog, label)]; np != NULL; np = np->next) {
+ if((prog == NULL || (np->prog != NULL && strcmp(prog, np->prog) == 0)) &&
+ strcmp(label, np->label) == 0)
+ {
return np->adr;
}
}
{
LABELTAB *np;
unsigned hashval;
+ char *keys[2];
+ int i = 0;
- if(getlabel(label, prog) != 0xFFFF) {
+ if(getlabel(prog, label) != 0xFFFF) {
setcerr(101, label); /* label already defined */
return false;
}
- np = (LABELTAB *) malloc(sizeof(*np));
+ np = malloc(sizeof(*np));
if(np == NULL || (np->label = strdup(label)) == NULL ||
(prog != NULL && (np->prog = strdup(prog)) == NULL))
{
setcerr(102, NULL); /* label table is full */
return false;
}
- hashval = hash(label, LABELTABSIZE);
+ if(prog != NULL) {
+ keys[i++] = strdup(prog);
+ }
+ labelcnt++;
+ keys[i] = strdup(label);
+ hashval = labelhash(prog, label);
np->next = labels[hashval];
labels[hashval] = np;
np->adr = adr;
return true;
}
+int compare_adr(const void *a, const void *b)
+{
+ return (**(const LABELARRAY **)a).adr - (**(const LABELARRAY **)b).adr;
+}
+
/* ラベル表を表示する */
void printlabel()
{
- int i;
+ int i, asize = 0;
LABELTAB *np;
+ LABELARRAY *ar[labelcnt];
+
for(i = 0; i < LABELTABSIZE; i++) {
for(np = labels[i]; np != NULL; np = np->next) {
- if(np->prog == NULL) {
- fprintf(stdout, "%s ---> #%04X\n", np->label, np->adr);
- } else {
- fprintf(stdout, "%s.%s ---> #%04X\n", np->prog, np->label, np->adr);
- }
+ ar[asize] = malloc(sizeof(LABELARRAY *));
+ ar[asize]->prog = (np->prog == NULL ? NULL : strdup(np->prog));
+ ar[asize]->label = strdup(np->label);
+ ar[asize]->adr = np->adr;
+ asize++;
+ }
+ }
+ qsort(ar, asize, sizeof(*ar), compare_adr);
+ for(i = 0; i < asize; i++) {
+ if(ar[i]->prog != NULL) {
+ fprintf(stdout, "%s.", ar[i]->prog);
}
+ fprintf(stdout, "%s ---> #%04X\n", ar[i]->label, ar[i]->adr);
}
}
int i;
LABELTAB *np, *nq;
for(i = 0; i < LABELTABSIZE; i++) {
- for(np = labels[i]; np != NULL; np = nq){
+ for(np = labels[i]; np != NULL; np = nq) {
nq = np->next;
free(np->prog);
free(np->label);