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Grayscale lib: Moved the shift count doubling for unbuffered up/down scrolling out of the asm block itself (cosmetic).

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git-svn-id: svn://svn.rockbox.org/rockbox/trunk@7250 a1c6a512-1295-4272-9138-f99709370657
This commit is contained in:
Jens Arnold 2005-07-28 14:08:58 +00:00
parent 7e33f16aee
commit feaf62704e
1 changed files with 2 additions and 4 deletions
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6
apps/plugins/lib/gray_scroll.c
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@ -339,7 +339,6 @@ void gray_ub_scroll_up(int count)
/* scroll column by column to minimize flicker */ /* scroll column by column to minimize flicker */
asm ( asm (
"move.l %[wide],%%d4\n" /* columns = width */ "move.l %[wide],%%d4\n" /* columns = width */
"add.l %[cnt],%[cnt] \n" /* shift 2 bits per pixel */
".su_cloop: \n" /* repeat for every column */ ".su_cloop: \n" /* repeat for every column */
"move.l %[addr],%%a0\n" /* get start address */ "move.l %[addr],%%a0\n" /* get start address */
@ -379,7 +378,7 @@ void gray_ub_scroll_up(int count)
[wide]"r"(_gray_info.width), [wide]"r"(_gray_info.width),
[rows]"r"(_gray_info.bheight - shift), [rows]"r"(_gray_info.bheight - shift),
[addr]"a"(_gray_info.plane_data + _gray_info.plane_size - blockshift), [addr]"a"(_gray_info.plane_data + _gray_info.plane_size - blockshift),
[cnt] "d"(count) [cnt] "d"(2 * count)
: /* clobbers */ : /* clobbers */
"a0", "a1", "d0", "d1", "d2", "d3", "d4" "a0", "a1", "d0", "d1", "d2", "d3", "d4"
); );
@ -522,7 +521,6 @@ void gray_ub_scroll_down(int count)
/* scroll column by column to minimize flicker */ /* scroll column by column to minimize flicker */
asm ( asm (
"move.l %[wide],%%d4\n" /* columns = width */ "move.l %[wide],%%d4\n" /* columns = width */
"add.l %[cnt],%[cnt] \n" /* shift 2 bits per pixel */
".sd_cloop: \n" /* repeat for every column */ ".sd_cloop: \n" /* repeat for every column */
"move.l %[addr],%%a0\n" /* get start address */ "move.l %[addr],%%a0\n" /* get start address */
@ -559,7 +557,7 @@ void gray_ub_scroll_down(int count)
[rows]"r"(_gray_info.bheight - shift), [rows]"r"(_gray_info.bheight - shift),
[psiz]"r"(_gray_info.plane_size), [psiz]"r"(_gray_info.plane_size),
[addr]"a"(_gray_info.plane_data + blockshift), [addr]"a"(_gray_info.plane_data + blockshift),
[cnt] "d"(count) [cnt] "d"(2 * count)
: /* clobbers */ : /* clobbers */
"a0", "a1", "d0", "d1", "d2", "d3", "d4" "a0", "a1", "d0", "d1", "d2", "d3", "d4"
); );