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ARM: jrevdct_arm: misc cleanup

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

Signed-off-by: Mans Rullgard <mans@mansr.com>
tags/n0.8
Mans Rullgard 14 years ago
parent
commit
77cdfde73e
1 changed files with 4 additions and 6 deletions
  1. +4
    -6
      libavcodec/arm/jrevdct_arm.S

+ 4
- 6
libavcodec/arm/jrevdct_arm.S View File

@@ -54,18 +54,15 @@
#define FIX_M_1_961570560_ID 40
#define FIX_M_2_562915447_ID 44
#define FIX_0xFFFF_ID 48
.text
.align

function ff_j_rev_dct_arm, export=1
stmdb sp!, { r4 - r12, lr } @ all callee saved regs

sub sp, sp, #4 @ reserve some space on the stack
str r0, [ sp ] @ save the DCT pointer to the stack

mov lr, r0 @ lr = pointer to the current row
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:
ldrsh r0, [lr, # 0] @ r0 = 'd0'
ldrsh r2, [lr, # 2] @ r2 = 'd2'
@@ -370,9 +367,9 @@ the_end:
@ The end....
add sp, sp, #4
ldmia sp!, { r4 - r12, pc } @ restore callee saved regs and return
endfunc

const_array:
.align
const const_array
.word FIX_0_298631336
.word FIX_0_541196100
.word FIX_0_765366865
@@ -386,3 +383,4 @@ const_array:
.word FIX_M_1_961570560
.word FIX_M_2_562915447
.word FIX_0xFFFF
endconst

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