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ffmpeg.wasm-core
Commit 9a0cf9f8 authored by Måns Rullgård's avatar Måns Rullgård
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ARM: use push/pop pseudo-instructions in simple_idct_armv6.S 

Originally committed as revision 16570 to svn://svn.ffmpeg.org/ffmpeg/trunk
parent e9497946
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Showing with 20 additions and 20 deletions
libavcodec/arm/simple_idct_armv6.S
View file @ 9a0cf9f8
......@@ -193,7 +193,7 @@ w57: .long W57
r1 = dest
*/
function idct_row_armv6
str lr, [sp, #-4]!
push {lr}
ldr lr, [r0, #12] /* lr = row[7,5] */
ldr ip, [r0, #4] /* ip = row[6,4] */
......@@ -203,7 +203,7 @@ function idct_row_armv6
cmpeq lr, r3
cmpeq lr, r2, lsr #16
beq 1f
str r1, [sp, #-4]!
push {r1}
ldr ip, w42 /* ip = W4 | (W2 << 16) */
cmp lr, #0
beq 2f
......@@ -213,7 +213,7 @@ function idct_row_armv6
2: idct_row4 ROW_SHIFT
3: ldr r1, [sp], #4
3: pop {r1}
idct_finish_shift ROW_SHIFT
strh r4, [r1]
......@@ -225,7 +225,7 @@ function idct_row_armv6
strh r9, [r1, #(16*5)]
strh r8, [r1, #(16*7)]
ldr pc, [sp], #4
pop {pc}
1: mov r2, r2, lsl #3
strh r2, [r1]
......@@ -236,7 +236,7 @@ function idct_row_armv6
strh r2, [r1, #(16*3)]
strh r2, [r1, #(16*5)]
strh r2, [r1, #(16*7)]
ldr pc, [sp], #4
pop {pc}
.endfunc
/*
......@@ -245,13 +245,13 @@ function idct_row_armv6
r1 = dest
*/
function idct_col_armv6
stmfd sp!, {r1, lr}
push {r1, lr}
ldr r2, [r0] /* r2 = row[2,0] */
ldr ip, w42 /* ip = W4 | (W2 << 16) */
ldr r3, [r0, #8] /* r3 = row[3,1] */
idct_row COL_SHIFT
ldr r1, [sp], #4
pop {r1}
idct_finish_shift COL_SHIFT
strh r4, [r1]
......@@ -263,7 +263,7 @@ function idct_col_armv6
strh r9, [r1, #(16*6)]
strh r8, [r1, #(16*7)]
ldr pc, [sp], #4
pop {pc}
.endfunc
/*
......@@ -273,13 +273,13 @@ function idct_col_armv6
r2 = line size
*/
function idct_col_put_armv6
stmfd sp!, {r1, r2, lr}
push {r1, r2, lr}
ldr r2, [r0] /* r2 = row[2,0] */
ldr ip, w42 /* ip = W4 | (W2 << 16) */
ldr r3, [r0, #8] /* r3 = row[3,1] */
idct_row COL_SHIFT
ldmfd sp!, {r1, r2}
pop {r1, r2}
idct_finish_shift_sat COL_SHIFT
strb r4, [r1], r2
......@@ -293,7 +293,7 @@ function idct_col_put_armv6
sub r1, r1, r2, lsl #3
ldr pc, [sp], #4
pop {pc}
.endfunc
/*
......@@ -303,13 +303,13 @@ function idct_col_put_armv6
r2 = line size
*/
function idct_col_add_armv6
stmfd sp!, {r1, r2, lr}
push {r1, r2, lr}
ldr r2, [r0] /* r2 = row[2,0] */
ldr ip, w42 /* ip = W4 | (W2 << 16) */
ldr r3, [r0, #8] /* r3 = row[3,1] */
idct_row COL_SHIFT
ldmfd sp!, {r1, r2}
pop {r1, r2}
idct_finish
ldrb r3, [r1]
......@@ -348,7 +348,7 @@ function idct_col_add_armv6
sub r1, r1, r2, lsl #3
ldr pc, [sp], #4
pop {pc}
.endfunc
/*
......@@ -385,7 +385,7 @@ function idct_col_add_armv6
/* void ff_simple_idct_armv6(DCTELEM *data); */
function ff_simple_idct_armv6, export=1
stmfd sp!, {r4-r11, lr}
push {r4-r11, lr}
sub sp, sp, #128
mov r1, sp
......@@ -395,12 +395,12 @@ function ff_simple_idct_armv6, export=1
idct_rows idct_col_armv6, 2
add sp, sp, #128
ldmfd sp!, {r4-r11, pc}
pop {r4-r11, pc}
.endfunc
/* ff_simple_idct_add_armv6(uint8_t *dest, int line_size, DCTELEM *data); */
function ff_simple_idct_add_armv6, export=1
stmfd sp!, {r0, r1, r4-r11, lr}
push {r0, r1, r4-r11, lr}
sub sp, sp, #128
mov r0, r2
......@@ -412,12 +412,12 @@ function ff_simple_idct_add_armv6, export=1
idct_rows idct_col_add_armv6, 1
add sp, sp, #(128+8)
ldmfd sp!, {r4-r11, pc}
pop {r4-r11, pc}
.endfunc
/* ff_simple_idct_put_armv6(uint8_t *dest, int line_size, DCTELEM *data); */
function ff_simple_idct_put_armv6, export=1
stmfd sp!, {r0, r1, r4-r11, lr}
push {r0, r1, r4-r11, lr}
sub sp, sp, #128
mov r0, r2
......@@ -429,5 +429,5 @@ function ff_simple_idct_put_armv6, export=1
idct_rows idct_col_put_armv6, 1
add sp, sp, #(128+8)
ldmfd sp!, {r4-r11, pc}
pop {r4-r11, pc}
.endfunc
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