diff options
Diffstat (limited to 'firmware/target/coldfire')
| -rw-r--r-- | firmware/target/coldfire/mpio/hd200/lcd-as-hd200.S | 42 |
1 files changed, 21 insertions, 21 deletions
diff --git a/firmware/target/coldfire/mpio/hd200/lcd-as-hd200.S b/firmware/target/coldfire/mpio/hd200/lcd-as-hd200.S index 29e52a0f1e..17b3dabfbe 100644 --- a/firmware/target/coldfire/mpio/hd200/lcd-as-hd200.S +++ b/firmware/target/coldfire/mpio/hd200/lcd-as-hd200.S @@ -34,8 +34,8 @@ lcd_write_command: move.l (4, %sp), %d0 - move.w %d0, LCD_BASE_ADDRESS /* data is 1byte but CF uses word - * transfers only */ + move.b %d0, LCD_BASE_ADDRESS /* transfers 1 byte to LCD */ + rts .wc_end: .size lcd_write_command,.wc_end-lcd_write_command @@ -47,11 +47,10 @@ lcd_write_command: lcd_write_command_e: lea.l LCD_BASE_ADDRESS, %a0 - move.l (4, %sp), %d0 /* Command */ - move.w %d0, (%a0) + move.b %d0, (%a0) move.l (8, %sp), %d0 /* Data */ - move.w %d0, (%a0) /* Write to LCD */ + move.b %d0, (%a0) /* Write to LCD */ rts .wce_end: @@ -79,22 +78,22 @@ lcd_write_data: .w_write: move.w (%a0)+, %d1 /* load data 3 cycles*/ - move.w %d1, (%a1) /* first byte 1 cycle*/ + move.b %d1, (%a1) /* first byte 1 cycle*/ lsr.l #8, %d1 /* load second byte 1 cycle*/ - move.w %d1, (%a1) /* transfer 1 cycle*/ + move.b %d1, (%a1) /* transfer 1 cycle*/ subq.l #1, %d0 /* decrement counter 1 cycle*/ jeq .write_end .l_write: move.l (%a0)+, %d1 /* load data 2 cycles*/ swap %d1 /* 1 cycle */ - move.w %d1, (%a1) /* first byte 1 cycle*/ + move.b %d1, (%a1) /* first byte 1 cycle*/ lsr.l #8, %d1 /* 1 cycle */ - move.w %d1, (%a1) /* second byte 1 cycle*/ + move.b %d1, (%a1) /* second byte 1 cycle*/ lsr.l #8, %d1 /* 1 cycle */ - move.w %d1, (%a1) /* third byte 1 cycle*/ + move.b %d1, (%a1) /* third byte 1 cycle*/ lsr.l #8, %d1 /* 1 cycle */ - move.w %d1, (%a1) /* forth byte 1 cycle*/ + move.b %d1, (%a1) /* forth byte 1 cycle*/ subq.l #2, %d0 /* decrement counter 1 cycle*/ bne.s .l_write @@ -113,10 +112,11 @@ lcd_mono_data: .md_loop: move.b (%a0)+, %d1 - move.w %d1, (%a1) /* byte transfers actually */ - move.w %d1, (%a1) + move.b %d1, (%a1) /* byte transfers */ + move.b %d1, (%a1) subq.l #1, %d0 bne.s .md_loop + rts .md_end: .size lcd_mono_data,.md_end-lcd_mono_data @@ -163,12 +163,12 @@ lcd_grey_data: not.l %d2 /* negate bits */ lsr.l %d4, %d2 /* %d2 = ........................01234567 */ - move.w %d2, (%a3) /* transfer first LCD byte */ + move.b %d2, (%a3) /* transfer first LCD byte */ movem.l %d0-%d1, (%a1) /* store 8 new pixel phases */ addq.l #8, %a1 - move.w %d2, (%a3) /* transfer second LCD byte */ + move.b %d2, (%a3) /* transfer second LCD byte */ .g_hend: cmp.l %a1, %a2 @@ -195,12 +195,12 @@ lcd_grey_data: not.l %d6 /* negate bits */ lsr.l %d4, %d6 /* %d6 = ........................01234567 */ - move.w %d6, (%a3) /* transfer first LCD byte */ + move.b %d6, (%a3) /* transfer first LCD byte */ movem.l (%a0), %d7/%a4-%a6 /* fetch 2 * 8 pixel values */ lea.l (16, %a0), %a0 - move.w %d6, (%a3) /* transfer second LCD byte */ + move.b %d6, (%a3) /* transfer second LCD byte */ add.l %d7, %d0 add.l %a4, %d1 @@ -222,12 +222,12 @@ lcd_grey_data: add.l %a5, %d2 add.l %a6, %d3 - move.w %d6, (%a3) /* transfer first LCD byte */ + move.b %d6, (%a3) /* transfer first LCD byte */ movem.l %d0-%d3, (%a1) /* store 2 * 8 new pixel phases */ lea.l (16, %a1), %a1 /* advance pointer */ - move.w %d6, (%a3) /* transfer second LCD byte */ + move.b %d6, (%a3) /* transfer second LCD byte */ cmp.l %a2, %a1 bls.s .g_line_loop @@ -256,12 +256,12 @@ lcd_grey_data: not.l %d2 /* negate bits */ lsr.l %d4, %d2 /* %d2 = ........................01234567 */ - move.w %d2, (%a3) /* transfer first LCD byte */ + move.b %d2, (%a3) /* transfer first LCD byte */ movem.l %d0-%d1, (%a1) /* store 8 new pixel phases */ /* addq.l #8, %a1 not needed anymore */ - move.w %d2, (%a3) /* transfer second LCD byte */ + move.b %d2, (%a3) /* transfer second LCD byte */ .g_tend: movem.l (%sp), %d2-%d7/%a2-%a6 |