Inline shifts in g_asl as is already the case in g_scale.

[cc65] / src / cc65 / codegen.c

diff --git a/src/cc65/codegen.c b/src/cc65/codegen.c
index 4f58ce0157912c726385a6095297e94a1adb2047..dc0fd520d0b282167b8fd674cc4fe8c8c17ac482 100644 (file)
--- a/src/cc65/codegen.c
+++ b/src/cc65/codegen.c
@@ -387,8 +387,8 @@ void g_defimport (const char* Name, int ZP)
 
 void g_importstartup (void)
 /* Forced import of the startup segment */
-{   
-#if 0 
+{
+#if 0
     AddTextLine ("\t.forceimport\t__STARTUP_RUN__");
 #endif
 }
@@ -3119,11 +3119,20 @@ void g_asl (unsigned flags, unsigned long val)
                     /* Done */
                     return;
                 } else if (val >= 1 && val <= 4) {
-                    if (flags & CF_UNSIGNED) {
-                               AddCodeLine ("jsr shlax%ld", val);
-                    } else {
-                       AddCodeLine ("jsr aslax%ld", val);
-                    }
+                    if (IS_Get (&CodeSizeFactor) >= (long) (val+1)*130) {
+                       AddCodeLine ("stx tmp1");
+                       while (val--) {
+                           AddCodeLine ("asl a");
+                           AddCodeLine ("rol tmp1");
+                       }
+                       AddCodeLine ("ldx tmp1");
+                   } else {
+                       if (flags & CF_UNSIGNED) {
+                           AddCodeLine ("jsr shlax%ld", val);
+                       } else {
+                           AddCodeLine ("jsr aslax%ld", val);
+                       }
+                   }
                     return;
                 }
                 break;