Pi Firmware: fixed bug affecting test_for_elk()

Change-Id: I89b8e7927f5d429167ca0fe7f28d0ac04fdc6c91
2018-12-16 11:31:40 +00:00 · 2018-12-16 11:31:40 +00:00 · c854ecb03b
commit c854ecb03b
--- a/src/rgb_to_fb.S
+++ b/src/rgb_to_fb.S
@ -519,7 +519,7 @@ skip_osd_update:
        ldr    r5, param_ncapture
        cmp    r5, #0
        blt    frame
-        sub    r5, #1
+        subs   r5, #1
        str    r5, param_ncapture
        bne    frame