H300: * Assembler optimised lcd_yuv_blit(), based on the X5 version. 23..31% speedup in tests depending on video size. * Don't set HORIZ_RAM_ADDR_POS for LCD updates, it's unnecessary. * Started the target tree move for H300 with this.

git-svn-id: svn://svn.rockbox.org/rockbox/trunk@10724 a1c6a512-1295-4272-9138-f99709370657

1 files changed, 0 insertions, 95 deletions

diff --git a/firmware/drivers/lcd.S b/firmware/drivers/lcd.S
index 8764d793c3..d9e7092c94 100755
--- a/firmware/drivers/lcd.S
+++ b/firmware/drivers/lcd.S
@@ -371,99 +371,4 @@ lcd_write_data:
     nop                     /* 1(0/0) */
     bne     .loop           /* 2(0/0) */
     rts
-#elif defined(IRIVER_H300_SERIES)
-    .section    .icode,"ax",@progbits
-
-    .align      2
-    .global     lcd_write_data
-    .type       lcd_write_data,@function
-
-lcd_write_data:
-    move.l  (4,%sp),%a0     /* data pointer */
-    move.l  (8,%sp),%d0     /* length in words */
-    add.l   %d0,%d0         /* words -> bytes */
-    add.l   %a0,%d0         /* -> end address */
-    lea.l   0xf0000002,%a1  /* LCD data port */
-    
-    move.l  %a0,%d1
-    btst.l  #1,%d1          /* already longword aligned? */
-    beq.b   .word1_end      /* yes: skip initial word copy */
-    
-    move.w  (%a0)+,(%a1)    /* transfer initial word */
-
-.word1_end:                 /* now longword aligned */
-    moveq.l #28,%d1
-    add.l   %a0,%d1
-    and.l   #0xFFFFFFF0,%d1 /* %d1 = first line bound + 16 */
-    cmp.l   %d1,%d0         /* at least one full line to send? */
-    blo.b   .long2_start    /* no: skip to trailing longword handling */
-
-    lea.l   (-16,%sp),%sp   /* free up some registers */
-    movem.l %d2-%d4/%a2,(%sp)
-
-    subq.l  #8,%d1
-    subq.l  #8,%d1          /* %d1 = first line bound */
-
-    cmp.l   %a0,%d1         /* any leading longwords? */
-    bls.b   .long1_end      /* no: skip leading long loop */
-    
-.long1_loop:
-    move.l  (%a0)+,%d2      /* read longword */
-    swap    %d2             /* send data to LCD in correct order...*/
-    move.w  %d2,(%a1)
-    swap    %d2
-    move.w  %d2,(%a1)
-    cmp.l   %a0,%d1         /* run %a0 up to first line bound */
-    bhi.b   .long1_loop
-    
-.long1_end:
-    move.l  %d0,%a2
-    lea.l   (-14,%a2),%a2   /* %a2 = end address - 14 (one line/pass) */
-
-    /* burst-optimised line transfers */
-.line_loop:
-    movem.l (%a0),%d1-%d4   /* burst-read line */
-    lea.l   (16,%a0),%a0    /* increment address */
-    swap    %d1             /* send data to LCD in correct order... */
-    move.w  %d1,(%a1)
-    swap    %d1
-    move.w  %d1,(%a1)
-    swap    %d2
-    move.w  %d2,(%a1)
-    swap    %d2
-    move.w  %d2,(%a1)
-    swap    %d3
-    move.w  %d3,(%a1)
-    swap    %d3
-    move.w  %d3,(%a1)
-    swap    %d4
-    move.w  %d4,(%a1)
-    swap    %d4
-    move.w  %d4,(%a1)
-    cmp.l   %a0,%a2         /* run %a0 up to last line bound */
-    bhi.b   .line_loop
-    
-    movem.l (%sp),%d2-%d4/%a2
-    lea.l   (16,%sp),%sp    /* restore registers */
-
-.long2_start:
-    subq.l  #2,%d0          /* account for handling 2 words per loop */
-    cmp.l   %a0,%d0         /* any (trailing longwords? */
-    bls.b   .long2_end      /* no: skip trailing longword loop */
-
-.long2_loop:
-    move.l  (%a0)+,%d1      /* read longword */
-    swap    %d1             /* send data to LCD in correct order */
-    move.w  %d1,(%a1)
-    swap    %d1
-    move.w  %d1,(%a1)
-    cmp.l   %a0,%d0         /* run %a0 up to last long bound */
-    bhi.b   .long2_loop
-    
-.long2_end:
-    blo.b   .word2_end      /* no final word: skip */
-    move.w  (%a0)+,(%a1)    /* transfer final word */
-
-.word2_end:
-    rts
 #endif