[openfirmware] [commit] r3714 - cpu/ppc

[repository service]

Author: wmb
Date: Fri Mar 14 22:24:32 2014
New Revision: 3714
URL: http://tracker.coreboot.org/trac/openfirmware/changeset/3714

Log:
Fixed bugs in PowerPC 16- and 32-bit framebuffer operations.

Modified:
   cpu/ppc/fb8-ops.fth

Modified: cpu/ppc/fb8-ops.fth
==============================================================================
--- cpu/ppc/fb8-ops.fth	Wed Feb 26 04:40:33 2014	(r3713)
+++ cpu/ppc/fb8-ops.fth	Fri Mar 14 22:24:32 2014	(r3714)
@@ -55,6 +55,7 @@
     mfspr	t6,ctr		\ Save counter
     
     subf	t0,t1,t0	\ Account for inner loop incrementing
+    subf	t0,t1,t0	\  (2 bytes per pixel)
     addi	t3,t3,-2	\ Account for inner loop incrementing
 
     begin 			\ Outer loop
@@ -94,6 +95,9 @@
     mfspr	t6,ctr		\ Save counter
     
     subf	t0,t1,t0	\ Account for inner loop incrementing
+    subf	t0,t1,t0	\  (4 bytes per pixel)
+    subf	t0,t1,t0	\  (4 bytes per pixel)
+    subf	t0,t1,t0	\  (4 bytes per pixel)
     addi	t3,t3,-4	\ Account for inner loop incrementing
 
     begin 			\ Outer loop
@@ -200,6 +204,7 @@
  
     addi	t3,t3,-2	\ Account for pre-incrementing
     subf	t2,t5,t2	\ Account for inner loop incrementing
+    subf	t2,t5,t2	\  (2 bytes per pixel)
     mfspr	t8,ctr		\ Save counter
 
     addi	r0,r0,8		\ Constant 8 (pixels/font-byte), needed below
@@ -263,6 +268,9 @@
  
     addi	t3,t3,-4	\ Account for pre-incrementing
     subf	t2,t5,t2	\ Account for inner loop incrementing
+    subf	t2,t5,t2	\  (4 bytes per pixel)
+    subf	t2,t5,t2	\  (4 bytes per pixel)
+    subf	t2,t5,t2	\  (4 bytes per pixel)
     mfspr	t8,ctr		\ Save counter
 
     addi	r0,r0,8		\ Constant 8 (pixels/font-byte), needed below