ラベルが空のとき、変数にNULLではなく'\0'を設定するよう変更

[YACASL2.git] / src / assemble.c

diff --git a/src/assemble.c b/src/assemble.c
index 343aa52..23ce8ac 100644 (file)
--- a/src/assemble.c
+++ b/src/assemble.c
@@ -82,7 +82,7 @@ static CMD ascmd[] = {
     { "END", assemble_end },
     { "DS", assemble_ds },
     { "DC", assemble_dc },
-    { NULL, NULL }
+    { "", NULL }
 };
 
 /**
@@ -93,7 +93,7 @@ static CMD macrocmd[] = {
     { "IN", assemble_in },
     { "RPUSH", assemble_rpush },
     { "RPOP", assemble_rpop },
-    { NULL, NULL }
+    { "", NULL }
 };
 
 /**
@@ -257,7 +257,7 @@ void assemble_start(const CMDLINE *cmdl, PASS pass)
         setcerr(106, "");    /* operand count mismatch */
         return;
     }
-    if(cmdl->label == NULL) {
+    if(cmdl->label == '\0') {
         setcerr(107, "");    /* no label in START */
         return;
     }
@@ -468,7 +468,7 @@ bool casl2cmd(CMD *cmdtbl, const CMDLINE *cmdl, PASS pass)
 {
     int i;
     void (*cmdptr)();
-    for(i = 0; cmdtbl[i].name != NULL; i++) {
+    for(i = 0; *(cmdtbl[i].name) != '\0'; i++) {
         if(strcmp(cmdl->cmd, cmdtbl[i].name) == 0) {
             cmdptr = cmdtbl[i].ptr;
             (*cmdptr)(cmdl, pass);
@@ -575,7 +575,7 @@ bool assemble_comet2cmd(const CMDLINE *cmdl, PASS pass)
 bool assembletok(const CMDLINE *cmdl, PASS pass)
 {
     /* 命令がない場合 */
-    if(cmdl->cmd == NULL) {
+    if(*(cmdl->cmd) == '\0') {
         return true;
     }
     /* アセンブラ命令またはマクロ命令の書込 */
@@ -604,14 +604,14 @@ bool assembleline(const char *line, PASS pass)
     stat = (cerr->num == 0) ? true : false;
     if(cmdl != NULL) {
         if(stat == true) {
-            if(pass == FIRST && cmdl->label != NULL) {
+            if(pass == FIRST && cmdl->label != '\0') {
                 stat = addlabel(asptr->prog, cmdl->label, asptr->ptr);
             }
-            if(stat == true) {
-                stat = assembletok(cmdl, pass);
-            }
-            FREE(cmdl->label);
         }
+        if(stat == true) {
+            stat = assembletok(cmdl, pass);
+        }
+        FREE(cmdl->label);
         if(cmdl->opd != NULL) {
             for(i = 0; i < cmdl->opd->opdc; i++) {
                 FREE(cmdl->opd->opdv[i]);