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rockbox/firmware/target/coldfire/iriver/h100/lcd-as-h100.S

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Forgot to cvs add lcd-as-h100.S. git-svn-id: svn://svn.rockbox.org/rockbox/trunk@11469 a1c6a512-1295-4272-9138-f99709370657
2006-11-08 16:22:30 +00:00
/***************************************************************************
* __________ __ ___.
* Open \______ \ ____ ____ | | _\_ |__ _______ ___
* Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
* Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
* Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
* \/ \/ \/ \/ \/
* $Id$
*
* Copyright (C) 2004 by Jens Arnold
* Based on the work of Alan Korr and J<EFBFBD>rg Hohensohn
*
* 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.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
****************************************************************************/
#include "config.h"
#include "cpu.h"
.section .icode,"ax",@progbits
.align 2
.global lcd_write_command
.type lcd_write_command,@function
lcd_write_command:
All-new greyscale library, replacing the old one. Features: (1) Drawing/updating is faster than the old grayscale lib at full depth. (2) Always 129 shades instead of 2..33 shades. (3) No graininess caused by frequent updates (mpegplayer, doom, ...). (4) Needs less memory than the old grayscale lib at full depth. * The tradeoff is slightly higher CPU load in the ISR (frames are calculated 'live') and an extra function in the core. * Ported all plugins which used the graylib to use the new one. * Some slight optimisations for archos and H1x0 LCD update. git-svn-id: svn://svn.rockbox.org/rockbox/trunk@15998 a1c6a512-1295-4272-9138-f99709370657
2008-01-04 23:42:38 +00:00
move.l #~8, %d1
and.l %d1, (MBAR2+0xb4)
move.l (4, %sp), %d0
move.w %d0, 0xf0000000
Forgot to cvs add lcd-as-h100.S. git-svn-id: svn://svn.rockbox.org/rockbox/trunk@11469 a1c6a512-1295-4272-9138-f99709370657
2006-11-08 16:22:30 +00:00
rts
.wc_end:
.size lcd_write_command,.wc_end-lcd_write_command
.align 2
.global lcd_write_command_ex
.type lcd_write_command_ex,@function
lcd_write_command_ex:
All-new greyscale library, replacing the old one. Features: (1) Drawing/updating is faster than the old grayscale lib at full depth. (2) Always 129 shades instead of 2..33 shades. (3) No graininess caused by frequent updates (mpegplayer, doom, ...). (4) Needs less memory than the old grayscale lib at full depth. * The tradeoff is slightly higher CPU load in the ISR (frames are calculated 'live') and an extra function in the core. * Ported all plugins which used the graylib to use the new one. * Some slight optimisations for archos and H1x0 LCD update. git-svn-id: svn://svn.rockbox.org/rockbox/trunk@15998 a1c6a512-1295-4272-9138-f99709370657
2008-01-04 23:42:38 +00:00
lea.l 0xf0000000, %a0
lea.l MBAR2+0xb4, %a1
Forgot to cvs add lcd-as-h100.S. git-svn-id: svn://svn.rockbox.org/rockbox/trunk@11469 a1c6a512-1295-4272-9138-f99709370657
2006-11-08 16:22:30 +00:00
All-new greyscale library, replacing the old one. Features: (1) Drawing/updating is faster than the old grayscale lib at full depth. (2) Always 129 shades instead of 2..33 shades. (3) No graininess caused by frequent updates (mpegplayer, doom, ...). (4) Needs less memory than the old grayscale lib at full depth. * The tradeoff is slightly higher CPU load in the ISR (frames are calculated 'live') and an extra function in the core. * Ported all plugins which used the graylib to use the new one. * Some slight optimisations for archos and H1x0 LCD update. git-svn-id: svn://svn.rockbox.org/rockbox/trunk@15998 a1c6a512-1295-4272-9138-f99709370657
2008-01-04 23:42:38 +00:00
move.l #~8, %d1 /* Set A0 = 0 */
and.l %d1, (%a1)
Forgot to cvs add lcd-as-h100.S. git-svn-id: svn://svn.rockbox.org/rockbox/trunk@11469 a1c6a512-1295-4272-9138-f99709370657
2006-11-08 16:22:30 +00:00
All-new greyscale library, replacing the old one. Features: (1) Drawing/updating is faster than the old grayscale lib at full depth. (2) Always 129 shades instead of 2..33 shades. (3) No graininess caused by frequent updates (mpegplayer, doom, ...). (4) Needs less memory than the old grayscale lib at full depth. * The tradeoff is slightly higher CPU load in the ISR (frames are calculated 'live') and an extra function in the core. * Ported all plugins which used the graylib to use the new one. * Some slight optimisations for archos and H1x0 LCD update. git-svn-id: svn://svn.rockbox.org/rockbox/trunk@15998 a1c6a512-1295-4272-9138-f99709370657
2008-01-04 23:42:38 +00:00
move.l (4, %sp), %d0 /* Command */
move.w %d0, (%a0) /* Write to LCD */
Forgot to cvs add lcd-as-h100.S. git-svn-id: svn://svn.rockbox.org/rockbox/trunk@11469 a1c6a512-1295-4272-9138-f99709370657
2006-11-08 16:22:30 +00:00
All-new greyscale library, replacing the old one. Features: (1) Drawing/updating is faster than the old grayscale lib at full depth. (2) Always 129 shades instead of 2..33 shades. (3) No graininess caused by frequent updates (mpegplayer, doom, ...). (4) Needs less memory than the old grayscale lib at full depth. * The tradeoff is slightly higher CPU load in the ISR (frames are calculated 'live') and an extra function in the core. * Ported all plugins which used the graylib to use the new one. * Some slight optimisations for archos and H1x0 LCD update. git-svn-id: svn://svn.rockbox.org/rockbox/trunk@15998 a1c6a512-1295-4272-9138-f99709370657
2008-01-04 23:42:38 +00:00
not.l %d1 /* Set A0 = 1 */
or.l %d1, (%a1)
Forgot to cvs add lcd-as-h100.S. git-svn-id: svn://svn.rockbox.org/rockbox/trunk@11469 a1c6a512-1295-4272-9138-f99709370657
2006-11-08 16:22:30 +00:00
All-new greyscale library, replacing the old one. Features: (1) Drawing/updating is faster than the old grayscale lib at full depth. (2) Always 129 shades instead of 2..33 shades. (3) No graininess caused by frequent updates (mpegplayer, doom, ...). (4) Needs less memory than the old grayscale lib at full depth. * The tradeoff is slightly higher CPU load in the ISR (frames are calculated 'live') and an extra function in the core. * Ported all plugins which used the graylib to use the new one. * Some slight optimisations for archos and H1x0 LCD update. git-svn-id: svn://svn.rockbox.org/rockbox/trunk@15998 a1c6a512-1295-4272-9138-f99709370657
2008-01-04 23:42:38 +00:00
move.l (8, %sp), %d0 /* Data */
cmp.l #-1, %d0 /* -1? */
Forgot to cvs add lcd-as-h100.S. git-svn-id: svn://svn.rockbox.org/rockbox/trunk@11469 a1c6a512-1295-4272-9138-f99709370657
2006-11-08 16:22:30 +00:00
beq.b .last
All-new greyscale library, replacing the old one. Features: (1) Drawing/updating is faster than the old grayscale lib at full depth. (2) Always 129 shades instead of 2..33 shades. (3) No graininess caused by frequent updates (mpegplayer, doom, ...). (4) Needs less memory than the old grayscale lib at full depth. * The tradeoff is slightly higher CPU load in the ISR (frames are calculated 'live') and an extra function in the core. * Ported all plugins which used the graylib to use the new one. * Some slight optimisations for archos and H1x0 LCD update. git-svn-id: svn://svn.rockbox.org/rockbox/trunk@15998 a1c6a512-1295-4272-9138-f99709370657
2008-01-04 23:42:38 +00:00
move.w %d0, (%a0) /* Write to LCD */
Forgot to cvs add lcd-as-h100.S. git-svn-id: svn://svn.rockbox.org/rockbox/trunk@11469 a1c6a512-1295-4272-9138-f99709370657
2006-11-08 16:22:30 +00:00
All-new greyscale library, replacing the old one. Features: (1) Drawing/updating is faster than the old grayscale lib at full depth. (2) Always 129 shades instead of 2..33 shades. (3) No graininess caused by frequent updates (mpegplayer, doom, ...). (4) Needs less memory than the old grayscale lib at full depth. * The tradeoff is slightly higher CPU load in the ISR (frames are calculated 'live') and an extra function in the core. * Ported all plugins which used the graylib to use the new one. * Some slight optimisations for archos and H1x0 LCD update. git-svn-id: svn://svn.rockbox.org/rockbox/trunk@15998 a1c6a512-1295-4272-9138-f99709370657
2008-01-04 23:42:38 +00:00
move.l (12, %sp), %d0 /* Data */
cmp.l #-1, %d0 /* -1? */
Forgot to cvs add lcd-as-h100.S. git-svn-id: svn://svn.rockbox.org/rockbox/trunk@11469 a1c6a512-1295-4272-9138-f99709370657
2006-11-08 16:22:30 +00:00
beq.b .last
All-new greyscale library, replacing the old one. Features: (1) Drawing/updating is faster than the old grayscale lib at full depth. (2) Always 129 shades instead of 2..33 shades. (3) No graininess caused by frequent updates (mpegplayer, doom, ...). (4) Needs less memory than the old grayscale lib at full depth. * The tradeoff is slightly higher CPU load in the ISR (frames are calculated 'live') and an extra function in the core. * Ported all plugins which used the graylib to use the new one. * Some slight optimisations for archos and H1x0 LCD update. git-svn-id: svn://svn.rockbox.org/rockbox/trunk@15998 a1c6a512-1295-4272-9138-f99709370657
2008-01-04 23:42:38 +00:00
move.w %d0, (%a0) /* Write to LCD */
Forgot to cvs add lcd-as-h100.S. git-svn-id: svn://svn.rockbox.org/rockbox/trunk@11469 a1c6a512-1295-4272-9138-f99709370657
2006-11-08 16:22:30 +00:00
.last:
rts
.wcex_end:
.size lcd_write_command_ex,.wcex_end-lcd_write_command_ex
.align 2
.global lcd_write_data
.type lcd_write_data,@function
lcd_write_data:
All-new greyscale library, replacing the old one. Features: (1) Drawing/updating is faster than the old grayscale lib at full depth. (2) Always 129 shades instead of 2..33 shades. (3) No graininess caused by frequent updates (mpegplayer, doom, ...). (4) Needs less memory than the old grayscale lib at full depth. * The tradeoff is slightly higher CPU load in the ISR (frames are calculated 'live') and an extra function in the core. * Ported all plugins which used the graylib to use the new one. * Some slight optimisations for archos and H1x0 LCD update. git-svn-id: svn://svn.rockbox.org/rockbox/trunk@15998 a1c6a512-1295-4272-9138-f99709370657
2008-01-04 23:42:38 +00:00
movem.l (4, %sp), %a0-%a1 /* Data pointer */
move.l %a1, %d0 /* Length */
moveq #8, %d1
or.l %d1, (MBAR2+0xb4)
lea.l 0xf0000000, %a1
Forgot to cvs add lcd-as-h100.S. git-svn-id: svn://svn.rockbox.org/rockbox/trunk@11469 a1c6a512-1295-4272-9138-f99709370657
2006-11-08 16:22:30 +00:00
.loop:
Coldfire targets: enable buffered writes by default. Speeds up all sorts of I/O that writes to ports: LCD update (except the functions using DMA on H300), ATA writes, .... Some timings had to be adjusted for the new configuration. git-svn-id: svn://svn.rockbox.org/rockbox/trunk@15129 a1c6a512-1295-4272-9138-f99709370657
2007-10-15 21:16:50 +00:00
/* When running in IRAM, this loop takes 10 cycles plus the LCD write.
The 10 cycles are necessary to follow the LCD timing specs
Forgot to cvs add lcd-as-h100.S. git-svn-id: svn://svn.rockbox.org/rockbox/trunk@11469 a1c6a512-1295-4272-9138-f99709370657
2006-11-08 16:22:30 +00:00
at 140MHz */
All-new greyscale library, replacing the old one. Features: (1) Drawing/updating is faster than the old grayscale lib at full depth. (2) Always 129 shades instead of 2..33 shades. (3) No graininess caused by frequent updates (mpegplayer, doom, ...). (4) Needs less memory than the old grayscale lib at full depth. * The tradeoff is slightly higher CPU load in the ISR (frames are calculated 'live') and an extra function in the core. * Ported all plugins which used the graylib to use the new one. * Some slight optimisations for archos and H1x0 LCD update. git-svn-id: svn://svn.rockbox.org/rockbox/trunk@15998 a1c6a512-1295-4272-9138-f99709370657
2008-01-04 23:42:38 +00:00
nop /* 3(0/0) */
move.b (%a0)+, %d1 /* 3(1/0) */
move.w %d1, (%a1) /* 1(0/1) */
subq.l #1, %d0 /* 1(0/0) */
bne .loop /* 2(0/0) */
Forgot to cvs add lcd-as-h100.S. git-svn-id: svn://svn.rockbox.org/rockbox/trunk@11469 a1c6a512-1295-4272-9138-f99709370657
2006-11-08 16:22:30 +00:00
rts
.wd_end:
.size lcd_write_data,.wd_end-lcd_write_data
All-new greyscale library, replacing the old one. Features: (1) Drawing/updating is faster than the old grayscale lib at full depth. (2) Always 129 shades instead of 2..33 shades. (3) No graininess caused by frequent updates (mpegplayer, doom, ...). (4) Needs less memory than the old grayscale lib at full depth. * The tradeoff is slightly higher CPU load in the ISR (frames are calculated 'live') and an extra function in the core. * Ported all plugins which used the graylib to use the new one. * Some slight optimisations for archos and H1x0 LCD update. git-svn-id: svn://svn.rockbox.org/rockbox/trunk@15998 a1c6a512-1295-4272-9138-f99709370657
2008-01-04 23:42:38 +00:00
.align 2
.global lcd_grey_data
.type lcd_grey_data,@function
lcd_grey_data:
Greyscale library: Changed the internal data format once more (separated pixel values and phases), allowing for further optimisation of drawing, scrolling etc. * Optimised grey phase blitting in the core reduces CPU load on all architectures, most significantly on coldfire. Previous version was too slow to keep up at 45MHz, leading to unwanted graininess (update frequency was halved). Also fixed screendump on 2bpp targets with vertical pixel packing. git-svn-id: svn://svn.rockbox.org/rockbox/trunk@16043 a1c6a512-1295-4272-9138-f99709370657
2008-01-09 23:48:26 +00:00
lea.l (-9*4, %sp), %sp
movem.l %d2-%d5/%a2-%a6, (%sp) /* free some registers */
movem.l (9*4+4, %sp), %a0-%a2 /* values, phases, length */
lea.l (%a1, %a2.l*4), %a2 /* end address */
All-new greyscale library, replacing the old one. Features: (1) Drawing/updating is faster than the old grayscale lib at full depth. (2) Always 129 shades instead of 2..33 shades. (3) No graininess caused by frequent updates (mpegplayer, doom, ...). (4) Needs less memory than the old grayscale lib at full depth. * The tradeoff is slightly higher CPU load in the ISR (frames are calculated 'live') and an extra function in the core. * Ported all plugins which used the graylib to use the new one. * Some slight optimisations for archos and H1x0 LCD update. git-svn-id: svn://svn.rockbox.org/rockbox/trunk@15998 a1c6a512-1295-4272-9138-f99709370657
2008-01-04 23:42:38 +00:00
moveq #8, %d1
or.l %d1, (MBAR2+0xb4) /* A0 = 1 (data) */
Greyscale library: Changed the internal data format once more (separated pixel values and phases), allowing for further optimisation of drawing, scrolling etc. * Optimised grey phase blitting in the core reduces CPU load on all architectures, most significantly on coldfire. Previous version was too slow to keep up at 45MHz, leading to unwanted graininess (update frequency was halved). Also fixed screendump on 2bpp targets with vertical pixel packing. git-svn-id: svn://svn.rockbox.org/rockbox/trunk@16043 a1c6a512-1295-4272-9138-f99709370657
2008-01-09 23:48:26 +00:00
lea 0xf0000000, %a3 /* LCD data port */
moveq.l #15, %d3
add.l %a1, %d3
and.l #0xfffffff0, %d3 /* first line bound */
move.l %a2, %d1
and.l #0xfffffff0, %d1 /* last line bound */
cmp.l %d3, %d1
bls.w .g_tloop /* no lines to copy - jump to tail loop */
cmp.l %a1, %d0
bls.s .g_lloop /* no head blocks - jump to line loop */
.g_hloop:
move.l (%a1), %d2 /* fetch 4 pixel phases */
bclr.l #31, %d2 /* Z = !(p0 & 0x80); p0 &= ~0x80; */
seq.b %d0 /* %d0 = ........................00000000 */
lsl.l #2, %d0 /* %d0 = ......................00000000.. */
bclr.l #23, %d2 /* Z = !(p1 & 0x80); p1 &= ~0x80; */
seq.b %d0 /* %d0 = ......................0011111111 */
lsl.l #2, %d0 /* %d0 = ....................0011111111.. */
bclr.l #15, %d2 /* Z = !(p2 & 0x80); p2 &= ~0x80; */
seq.b %d0 /* %d0 = ....................001122222222 */
lsl.l #2, %d0 /* %d0 = ..................001122222222.. */
bclr.l #7, %d2 /* Z = !(p3 & 0x80); p3 &= ~0x80; */
seq.b %d0 /* %d0 = ..................00112233333333 */
lsr.l #6, %d0 /* %d0 = ........................00112233 */
move.w %d0, (%a3) /* write pixel block */
add.l (%a0)+, %d2 /* add 4 pixel values to the phases */
move.l %d2, (%a1)+ /* store new phases, advance pointer */
cmp.l %a1, %d3 /* go up to first line bound */
bhi.s .g_hloop
.g_lloop:
movem.l (%a1), %d2-%d5
All-new greyscale library, replacing the old one. Features: (1) Drawing/updating is faster than the old grayscale lib at full depth. (2) Always 129 shades instead of 2..33 shades. (3) No graininess caused by frequent updates (mpegplayer, doom, ...). (4) Needs less memory than the old grayscale lib at full depth. * The tradeoff is slightly higher CPU load in the ISR (frames are calculated 'live') and an extra function in the core. * Ported all plugins which used the graylib to use the new one. * Some slight optimisations for archos and H1x0 LCD update. git-svn-id: svn://svn.rockbox.org/rockbox/trunk@15998 a1c6a512-1295-4272-9138-f99709370657
2008-01-04 23:42:38 +00:00
Greyscale library: Changed the internal data format once more (separated pixel values and phases), allowing for further optimisation of drawing, scrolling etc. * Optimised grey phase blitting in the core reduces CPU load on all architectures, most significantly on coldfire. Previous version was too slow to keep up at 45MHz, leading to unwanted graininess (update frequency was halved). Also fixed screendump on 2bpp targets with vertical pixel packing. git-svn-id: svn://svn.rockbox.org/rockbox/trunk@16043 a1c6a512-1295-4272-9138-f99709370657
2008-01-09 23:48:26 +00:00
bclr.l #31, %d2
seq.b %d0
lsl.l #2, %d0
bclr.l #23, %d2
seq.b %d0
lsl.l #2, %d0
bclr.l #15, %d2
seq.b %d0
lsl.l #2, %d0
bclr.l #7, %d2
seq.b %d0
lsr.l #6, %d0
move.w %d0, (%a3)
bclr.l #31, %d3
seq.b %d0
lsl.l #2, %d0
bclr.l #23, %d3
seq.b %d0
lsl.l #2, %d0
bclr.l #15, %d3
seq.b %d0
lsl.l #2, %d0
bclr.l #7, %d3
seq.b %d0
lsr.l #6, %d0
move.w %d0, (%a3)
bclr.l #31, %d4
seq.b %d0
lsl.l #2, %d0
bclr.l #23, %d4
seq.b %d0
lsl.l #2, %d0
bclr.l #15, %d4
seq.b %d0
lsl.l #2, %d0
bclr.l #7, %d4
seq.b %d0
lsr.l #6, %d0
move.w %d0, (%a3)
bclr.l #31, %d5
seq.b %d0
lsl.l #2, %d0
bclr.l #23, %d5
seq.b %d0
lsl.l #2, %d0
bclr.l #15, %d5
seq.b %d0
lsl.l #2, %d0
bclr.l #7, %d5
seq.b %d0
lsr.l #6, %d0
move.w %d0, (%a3)
movem.l (%a0), %d0/%a4-%a6
lea.l (16, %a0), %a0
add.l %d0, %d2
add.l %a4, %d3
add.l %a5, %d4
add.l %a6, %d5
movem.l %d2-%d5, (%a1)
lea.l (16, %a1), %a1
cmp.l %a1, %d1 /* go up to last line bound */
bhi.w .g_lloop
cmp.l %a1, %a2
bls.s .g_no_tail
.g_tloop:
move.l (%a1), %d2
bclr.l #31, %d2
seq.b %d0
lsl.l #2, %d0
bclr.l #23, %d2
seq.b %d0
lsl.l #2, %d0
bclr.l #15, %d2
seq.b %d0
lsl.l #2, %d0
bclr.l #7, %d2
seq.b %d0
lsr.l #6, %d0
move.w %d0, (%a3)
add.l (%a0)+, %d2
move.l %d2, (%a1)+
cmp.l %a1, %a2 /* go up to end address */
bhi.s .g_tloop
.g_no_tail:
movem.l (%sp), %d2-%d5/%a2-%a6 /* restore registers */
lea.l (9*4, %sp), %sp
All-new greyscale library, replacing the old one. Features: (1) Drawing/updating is faster than the old grayscale lib at full depth. (2) Always 129 shades instead of 2..33 shades. (3) No graininess caused by frequent updates (mpegplayer, doom, ...). (4) Needs less memory than the old grayscale lib at full depth. * The tradeoff is slightly higher CPU load in the ISR (frames are calculated 'live') and an extra function in the core. * Ported all plugins which used the graylib to use the new one. * Some slight optimisations for archos and H1x0 LCD update. git-svn-id: svn://svn.rockbox.org/rockbox/trunk@15998 a1c6a512-1295-4272-9138-f99709370657
2008-01-04 23:42:38 +00:00
rts
Greyscale library: Changed the internal data format once more (separated pixel values and phases), allowing for further optimisation of drawing, scrolling etc. * Optimised grey phase blitting in the core reduces CPU load on all architectures, most significantly on coldfire. Previous version was too slow to keep up at 45MHz, leading to unwanted graininess (update frequency was halved). Also fixed screendump on 2bpp targets with vertical pixel packing. git-svn-id: svn://svn.rockbox.org/rockbox/trunk@16043 a1c6a512-1295-4272-9138-f99709370657
2008-01-09 23:48:26 +00:00
All-new greyscale library, replacing the old one. Features: (1) Drawing/updating is faster than the old grayscale lib at full depth. (2) Always 129 shades instead of 2..33 shades. (3) No graininess caused by frequent updates (mpegplayer, doom, ...). (4) Needs less memory than the old grayscale lib at full depth. * The tradeoff is slightly higher CPU load in the ISR (frames are calculated 'live') and an extra function in the core. * Ported all plugins which used the graylib to use the new one. * Some slight optimisations for archos and H1x0 LCD update. git-svn-id: svn://svn.rockbox.org/rockbox/trunk@15998 a1c6a512-1295-4272-9138-f99709370657
2008-01-04 23:42:38 +00:00
.gd_end:
.size lcd_grey_data,.gd_end-lcd_grey_data
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