From ec191db8498e90ba2f882abab9634ad304206977 Mon Sep 17 00:00:00 2001
From: kub <derkub@gmail.com>
Date: Fri, 18 Sep 2020 00:09:55 +0200
Subject: [PATCH] arm asm, tiny optimisation for 68k mem access

---
 pico/m68kif_cyclone.s | 11 +++++------
 1 file changed, 5 insertions(+), 6 deletions(-)

diff --git a/pico/m68kif_cyclone.s b/pico/m68kif_cyclone.s
index 3a9621dc..ec3087e5 100644
--- a/pico/m68kif_cyclone.s
+++ b/pico/m68kif_cyclone.s
@@ -32,13 +32,12 @@ cyclone_checkpc:
     ldr     r1, [r7, #0x6c]  @ read16 map
     mov     r2, r2, lsr #M68K_MEM_SHIFT
     ldr     r1, [r1, r2, lsl #2]
-    movs    r1, r1, lsl #1
-    bcs     crashed
 
-    sub     r1, r1, r3
-    str     r1, [r7, #0x60]  @ membase
-    add     r0, r0, r1
-    bx      lr
+    movs    r1, r1, lsl #1
+    subcc   r1, r1, r3
+    strcc   r1, [r7, #0x60]  @ membase
+    addcc   r0, r0, r1
+    bxcc    lr
 
 crashed:
     stmfd   sp!,{lr}
-- 
2.39.2