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ARM: jrevdct_arm: misc cleanup

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- use 'const' macro to define coeff table
- add missing endfunc
- remove superflous directives

Signed-off-by: Mans Rullgard <mans@mansr.com>
This commit is contained in:
Mans Rullgard 2011-06-13 09:24:27 +01:00
parent 5c46ad1da0
commit 77cdfde73e
1 changed files with 4 additions and 6 deletions
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10
libavcodec/arm/jrevdct_arm.S
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@ -54,18 +54,15 @@
#define FIX_M_1_961570560_ID 40 #define FIX_M_1_961570560_ID 40
#define FIX_M_2_562915447_ID 44 #define FIX_M_2_562915447_ID 44
#define FIX_0xFFFF_ID 48 #define FIX_0xFFFF_ID 48
.text
.align
function ff_j_rev_dct_arm, export=1 function ff_j_rev_dct_arm, export=1
stmdb sp!, { r4 - r12, lr } @ all callee saved regs stmdb sp!, { r4 - r12, lr } @ all callee saved regs
sub sp, sp, #4 @ reserve some space on the stack sub sp, sp, #4 @ reserve some space on the stack
str r0, [ sp ] @ save the DCT pointer to the stack str r0, [ sp ] @ save the DCT pointer to the stack
mov lr, r0 @ lr = pointer to the current row mov lr, r0 @ lr = pointer to the current row
mov r12, #8 @ r12 = row-counter mov r12, #8 @ r12 = row-counter
adr r11, const_array @ r11 = base pointer to the constants array movrel r11, const_array @ r11 = base pointer to the constants array
row_loop: row_loop:
ldrsh r0, [lr, # 0] @ r0 = 'd0' ldrsh r0, [lr, # 0] @ r0 = 'd0'
ldrsh r2, [lr, # 2] @ r2 = 'd2' ldrsh r2, [lr, # 2] @ r2 = 'd2'
@ -370,9 +367,9 @@ the_end:
@ The end.... @ The end....
add sp, sp, #4 add sp, sp, #4
ldmia sp!, { r4 - r12, pc } @ restore callee saved regs and return ldmia sp!, { r4 - r12, pc } @ restore callee saved regs and return
endfunc
const_array: const const_array
.align
.word FIX_0_298631336 .word FIX_0_298631336
.word FIX_0_541196100 .word FIX_0_541196100
.word FIX_0_765366865 .word FIX_0_765366865
@ -386,3 +383,4 @@ const_array:
.word FIX_M_1_961570560 .word FIX_M_1_961570560
.word FIX_M_2_562915447 .word FIX_M_2_562915447
.word FIX_0xFFFF .word FIX_0xFFFF
endconst