Replaced all the slow 'loop' instructions.

zsnes/src/gui/menu.asm

@@ -411,7 +411,9 @@ NEWSYM showmenu
     mov byte[eax],2
 .notpr
     inc eax
-    loop .looppr
+;    loop .looppr
+    dec ecx
+    jnz .looppr
 ;    mov byte[pressed+1],2
 ;    cmp byte[pressed+59],1
 ;    jne .not59
@@ -447,7 +449,9 @@ NEWSYM menudrawbox8b
 .loop
     mov byte[esi],144
     inc esi
-    loop .loop
+;    loop .loop
+    dec ecx
+    jnz .loop
     add esi,288-150
     dec al
     mov ecx,150
@@ -562,7 +566,9 @@ NEWSYM menudrawcursor8b
 .loop
     mov byte[esi],160
     inc esi
-    loop .loop
+;    loop .loop
+    dec ecx
+    jnz .loop
     add esi,288-148
     dec al
     mov ecx,148
@@ -589,7 +595,9 @@ NEWSYM menudrawbox16b
     shr dx,1
     mov [esi],dx
     add esi,2
-    loop .loop16b2
+;    loop .loop16b2
+    dec ecx
+    jnz .loop16b2
     add esi,288*2-150*2
     dec al
     mov ecx,150
@@ -623,7 +631,9 @@ NEWSYM menudrawbox16b
 .loop16b
     mov [esi],dx
     add esi,2
-    loop .loop16b
+;    loop .loop16b
+    dec ecx
+    jnz .loop16b
     add esi,288*2-150*2
     dec ah
     jnz .nocolinc16b
@@ -739,7 +749,9 @@ NEWSYM menudrawcursor16b
 .loop
     mov [esi],bx
     add esi,2
-    loop .loop
+;    loop .loop
+    dec ecx
+    jnz .loop
     add esi,288*2-148*2
     dec al
     mov ecx,148
@@ -838,7 +850,9 @@ NEWSYM savespcdata
     mov [edi],al
     inc esi
     inc edi
-    loop .romloop
+;    loop .romloop
+    dec ecx
+    jnz .romloop
     ; Copy Date of spc dumped
     call Get_Date
     mov [ssdatst+09Eh],dl