diff options
Diffstat (limited to 'apps/plugins/pacbox/pacbox_arm.S')
| -rw-r--r-- | apps/plugins/pacbox/pacbox_arm.S | 18 |
1 files changed, 6 insertions, 12 deletions
diff --git a/apps/plugins/pacbox/pacbox_arm.S b/apps/plugins/pacbox/pacbox_arm.S index ade3ad2de6..2060168350 100644 --- a/apps/plugins/pacbox/pacbox_arm.S +++ b/apps/plugins/pacbox/pacbox_arm.S @@ -7,11 +7,7 @@ * \/ \/ \/ \/ \/ * $Id$ * - * Pacbox - a Pacman Emulator for Rockbox - * - * Based on PIE - Pacman Instructional Emulator - * - * Copyright (c) 1997-2003,2004 Alessandro Scotti + * Copyright (c) 2006 Dave Chapman * * All files in this archive are subject to the GNU General Public License. * See the file COPYING in the source tree root for full license agreement. @@ -42,15 +38,13 @@ #if (LCD_WIDTH >= 288) && (LCD_HEIGHT >= 224) blit_display: - stmdb sp!, {r4-r12, lr} + stmdb sp!, {r4-r11, lr} add r3, r0, #5696 add r3, r3, #24 @ 5720 = (2*(YOFS*LCD_WIDTH+XOFS+ScreenHeight-4)) ldr r0, =palette mov lr, #288 @ y = 288 - mov r12, #224*3 - loop_y: mov r2, r3 @ r2 = next_dst sub r3, r3, #8 @ next_dst-=4 @@ -59,10 +53,10 @@ loop_y: mov r2, r3 @ r2 = next_dst /* store 2 input bytes from the next four lines in r7-r10 */ loop_x: ldrh r8, [r1, #224] @ r8 = vbuf[224] - ldrh r7, [r1] @ r7 = vbuf[0] ; vbuf += 2; + ldrh r7, [r1] @ r7 = vbuf[0] add r1, r1, #448 - ldrh r10, [r1, #224] @ r8 = vbuf[224] - ldrh r9, [r1], #2 @ r7 = vbuf[0] ; vbuf += 2; + ldrh r10, [r1, #224] @ r10 = vbuf[224*3] + ldrh r9, [r1], #2 @ r9 = vbuf[224*2] ; vbuf += 2; sub r1, r1, #448 @@ -124,7 +118,7 @@ loop_x: /* end of y loop */ add r1, r1, #224*3 @ vbuf += 224*3 subs lr, lr, #4 @ y-=4 - ldmeqia sp!, {r4-r12, pc} + ldmeqia sp!, {r4-r11, pc} b loop_y #endif #endif |