neon filters: minor optimization from M-HT

[libpicofe.git] / arm / neon_normalxx.Sinc

diff --git a/arm/neon_normalxx.Sinc b/arm/neon_normalxx.Sinc
index 0546ac2..6e3768f 100644 (file)
--- a/arm/neon_normalxx.Sinc
+++ b/arm/neon_normalxx.Sinc
@@ -30,17 +30,15 @@
 #define A256 :256\r
 #endif\r
 \r
-.macro bgr1555_to_rgb565 dr0 dr1 t0 t1 t2\r
-        str r0, [sp, #-4]\r
-        mov r0, #0x07c0\r
+.macro bgr1555_to_rgb565 dr0 dr1 t0 t1 t2 ar\r
+        mov \ar, #0x07c0\r
         vshl.u16 \t0, \dr0, #11\r
         vshl.u16 \t1, \dr1, #11\r
         vshl.u16 \dr0, \dr0, #1\r
         vshl.u16 \dr1, \dr1, #1\r
-        vdup.16 \t2, r0\r
+        vdup.16 \t2, \ar\r
         vsri.u16 \t0, \dr0, #11\r
         vsri.u16 \t1, \dr1, #11\r
-        ldr r0, [sp, #-4]\r
         vbif \dr0, \t0, \t2\r
         vbif \dr1, \t1, \t2\r
 .endm\r