diff options
| author | Jens Arnold <amiconn@rockbox.org> | 2006-04-12 21:04:27 +0000 |
|---|---|---|
| committer | Jens Arnold <amiconn@rockbox.org> | 2006-04-12 21:04:27 +0000 |
| commit | 7dea1f92340419ef0281ea24c548b558c3bd7888 (patch) | |
| tree | 1d3a708f234a1ef7310512f3a5830556ca17f0ef /firmware/drivers | |
| parent | 9cde77060a05ed9b0dae8dffdb7f9ed77734bbf9 (diff) | |
Another slight tweak.
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@9639 a1c6a512-1295-4272-9138-f99709370657
Diffstat (limited to 'firmware/drivers')
| -rw-r--r-- | firmware/drivers/lcd-h100-remote.c | 48 |
1 files changed, 20 insertions, 28 deletions
diff --git a/firmware/drivers/lcd-h100-remote.c b/firmware/drivers/lcd-h100-remote.c index 991e495421..253f452183 100644 --- a/firmware/drivers/lcd-h100-remote.c +++ b/firmware/drivers/lcd-h100-remote.c @@ -142,23 +142,22 @@ static inline void _write_byte(unsigned data) "moveq.l #8,%%d1 \n" /* bit counter */ "2: \n" - "tst.b %[data] \n" /* MSB of data set? */ - "bpl.s 1f \n" + "lsl.l #1,%[data] \n" /* data <<= 1, MSB of data set? */ + "bcc.s 1f \n" "or.l %[dhi],(%[gpi1]) \n" /* set data bit */ ".word 0x51fa \n" /* trapf.w - shadow next insn */ "1: \n" "and.l %[dlo],(%[gpi1]) \n" /* reset data bit */ "eor.l %[cbit],(%[gpio]) \n" /* set clock bit */ "eor.l %[cbit],(%[gpio]) \n" /* reset clock bit */ - "lsl.l #1,%[data] \n" /* data <<= 1 */ "subq.l #1,%%d1 \n" "bne.s 2b \n" "or.l %[dhi],(%[gpi1]) \n" /* set data bit */ : /* outputs */ - [data]"+d"(data) : /* inputs */ + [data]"d"(data << 24), [gpio]"a"(&GPIO_OUT), [cbit]"d"(0x10000000), [gpi1]"a"(&GPIO1_OUT), @@ -186,78 +185,71 @@ static inline void _write_unrolled(unsigned data) "or.l (%[gpio]),%%d3 \n" /* the clock bit */ "eor.l %%d3,%%d2 \n" - "tst.b %[data] \n" /* MSB of data set? */ - "bpl.s 1f \n" + "lsl.l #1,%[data] \n" /* data <<= 1, MSB of data set? */ + "bcc.s 1f \n" "move.l %%d1,(%[gpi1]) \n" /* set data bit */ ".word 0x51fa \n" /* trapf.w - shadow next insn */ "1: \n" "move.l %%d0,(%[gpi1]) \n" /* reset data bit */ "move.l %%d3,(%[gpio]) \n" /* set clock bit */ "move.l %%d2,(%[gpio]) \n" /* reset clock bit */ - "lsl.l #1,%[data] \n" /* data <<= 1 */ - "tst.b %[data] \n" - "bpl.s 1f \n" + "lsl.l #1,%[data] \n" + "bcc.s 1f \n" "move.l %%d1,(%[gpi1]) \n" ".word 0x51fa \n" "1: \n" "move.l %%d0,(%[gpi1]) \n" "move.l %%d3,(%[gpio]) \n" "move.l %%d2,(%[gpio]) \n" - "lsl.l #1,%[data] \n" - "tst.b %[data] \n" - "bpl.s 1f \n" + "lsl.l #1,%[data] \n" + "bcc.s 1f \n" "move.l %%d1,(%[gpi1]) \n" ".word 0x51fa \n" "1: \n" "move.l %%d0,(%[gpi1]) \n" "move.l %%d3,(%[gpio]) \n" "move.l %%d2,(%[gpio]) \n" - "lsl.l #1,%[data] \n" - "tst.b %[data] \n" - "bpl.s 1f \n" + "lsl.l #1,%[data] \n" + "bcc.s 1f \n" "move.l %%d1,(%[gpi1]) \n" ".word 0x51fa \n" "1: \n" "move.l %%d0,(%[gpi1]) \n" "move.l %%d3,(%[gpio]) \n" "move.l %%d2,(%[gpio]) \n" - "lsl.l #1,%[data] \n" - "tst.b %[data] \n" - "bpl.s 1f \n" + "lsl.l #1,%[data] \n" + "bcc.s 1f \n" "move.l %%d1,(%[gpi1]) \n" ".word 0x51fa \n" "1: \n" "move.l %%d0,(%[gpi1]) \n" "move.l %%d3,(%[gpio]) \n" "move.l %%d2,(%[gpio]) \n" - "lsl.l #1,%[data] \n" - "tst.b %[data] \n" - "bpl.s 1f \n" + "lsl.l #1,%[data] \n" + "bcc.s 1f \n" "move.l %%d1,(%[gpi1]) \n" ".word 0x51fa \n" "1: \n" "move.l %%d0,(%[gpi1]) \n" "move.l %%d3,(%[gpio]) \n" "move.l %%d2,(%[gpio]) \n" - "lsl.l #1,%[data] \n" - "tst.b %[data] \n" - "bpl.s 1f \n" + "lsl.l #1,%[data] \n" + "bcc.s 1f \n" "move.l %%d1,(%[gpi1]) \n" ".word 0x51fa \n" "1: \n" "move.l %%d0,(%[gpi1]) \n" "move.l %%d3,(%[gpio]) \n" "move.l %%d2,(%[gpio]) \n" - "lsl.l #1,%[data] \n" - "tst.b %[data] \n" - "bpl.s 1f \n" + "lsl.l #1,%[data] \n" + "bcc.s 1f \n" "move.l %%d1,(%[gpi1]) \n" ".word 0x51fa \n" "1: \n" @@ -268,8 +260,8 @@ static inline void _write_unrolled(unsigned data) "move.l %%d1,(%[gpi1]) \n" /* set data bit */ "move.w %%d4,%%sr \n" /* reenable interrupts */ : /* outputs */ - [data]"+d"(data) : /* inputs */ + [data]"d"(data << 24), [gpio]"a"(&GPIO_OUT), [gpi1]"a"(&GPIO1_OUT) : /* clobbers */ |