forked from len0rd/rockbox
* ARM asm DSP and codec/plugin functions: Use r12 scratch register properly
* Fix saving another unused reg in dsp code * Use less regs in the generic ARM mpegplayer adding idct pure DC case * Fix ARMv6 mpegplayer adding idct using an unsaved register in pure DC case git-svn-id: svn://svn.rockbox.org/rockbox/trunk@21803 a1c6a512-1295-4272-9138-f99709370657
This commit is contained in:
Jens Arnold
parent
e12c1c0a62
commit
02c031709c
6 changed files with 125 additions and 127 deletions
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@ -119,7 +119,7 @@ mdct_butterfly_16:
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ldr pc, [sp], #4
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mdct_butterfly_32:
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stmdb sp!, {r4, r5, r6, r7, r8, r9, r10, r11, r12, lr}
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stmdb sp!, {r4-r11, lr}
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add r1, r0, #16*4
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@ -247,13 +247,13 @@ mdct_butterfly_32:
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add r0, r0, #16*4
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bl mdct_butterfly_16
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ldmia sp!, {r4, r5, r6, r7, r8, r9, r10, r11, r12, pc}
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ldmia sp!, {r4-r11, pc}
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@ mdct_butterfly_generic_loop(x1, x2, T0, step, Ttop)
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mdct_butterfly_generic_loop:
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stmdb sp!, {r4, r5, r6, r7, r8, r9, r10, r11, r12, lr}
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stmdb sp!, {r4-r11, lr}
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str r2, [sp, #-4]
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ldr r4, [sp, #40]
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ldr r4, [sp, #36]
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1:
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ldmdb r0, {r6, r7, r8, r9}
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ldmdb r1, {r10, r11, r12, r14}
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@ -339,7 +339,7 @@ mdct_butterfly_generic_loop:
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cmp r2, r4
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bhi 1b
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ldr r4, [sp, #40]
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ldr r4, [sp, #36]
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1:
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ldmdb r0, {r6, r7, r8, r9}
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ldmdb r1, {r10, r11, r12, r14}
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@ -425,5 +425,5 @@ mdct_butterfly_generic_loop:
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cmp r2, r4
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bhi 1b
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ldmia sp!, {r4, r5, r6, r7, r8, r9, r10, r11, r12, pc}
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ldmia sp!, {r4-r11, pc}
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@ -32,8 +32,8 @@
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;; r3 = D0ptr
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;; r4 = D1ptr
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synth_full1:
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stmdb sp!, {r4, r5, r6, r7, r8, r9, r10, r11, r12, lr}
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ldr r4, [sp, #40]
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stmdb sp!, {r4-r11, lr}
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ldr r4, [sp, #36]
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ldr r5, =synth_full_sp
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str sp, [r5]
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mov r5, #15
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@ -135,11 +135,11 @@ synth_full1:
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ldr r5, =synth_full_sp
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ldr sp, [r5]
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ldmia sp!, {r4, r5, r6, r7, r8, r9, r10, r11, r12, pc}
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ldmia sp!, {r4-r11, pc}
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synth_full2:
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stmdb sp!, {r4, r5, r6, r7, r8, r9, r10, r11, r12, lr}
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ldr r4, [sp, #40]
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stmdb sp!, {r4-r11, lr}
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ldr r4, [sp, #36]
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ldr r5, =synth_full_sp
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str sp, [r5]
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mov r5, #15
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@ -241,12 +241,12 @@ synth_full2:
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ldr r5, =synth_full_sp
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ldr sp, [r5]
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ldmia sp!, {r4, r5, r6, r7, r8, r9, r10, r11, r12, pc}
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ldmia sp!, {r4-r11, pc}
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.global III_aliasreduce
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III_aliasreduce:
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stmdb sp!, {r4, r5, r6, r7, r8, r9, r10, r11, r12, lr}
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stmdb sp!, {r4-r11, lr}
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add r1, r0, r1, lsl #2
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add r0, r0, #72
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.arl1:
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@ -289,7 +289,7 @@ III_aliasreduce:
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add r0, r0, #72
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cmp r0, r1
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blo .arl1
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ldmia sp!, {r4, r5, r6, r7, r8, r9, r10, r11, r12, pc}
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ldmia sp!, {r4-r11, pc}
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csa:
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.word +0x0db84a81
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@ -311,14 +311,14 @@ csa:
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.global III_overlap
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III_overlap:
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stmdb sp!, {r4, r5, r6, r7, r8, lr}
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stmdb sp!, {r4-r7, lr}
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add r2, r2, r3, lsl #2
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mov r3, #6
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.ol:
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ldmia r0!, {r4, r5, r6}
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ldmia r1!, {r7, r8, lr}
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ldmia r1!, {r7, r12, lr}
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add r4, r4, r7
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add r5, r5, r8
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add r5, r5, r12
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add r6, r6, lr
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str r4, [r2], #128
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str r5, [r2], #128
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@ -326,13 +326,13 @@ III_overlap:
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subs r3, r3, #1
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bne .ol
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sub r1, r1, #72
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ldmia r0!, {r4, r5, r6, r7, r8, lr}
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stmia r1!, {r4, r5, r6, r7, r8, lr}
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ldmia r0!, {r4, r5, r6, r7, r8, lr}
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stmia r1!, {r4, r5, r6, r7, r8, lr}
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ldmia r0!, {r4, r5, r6, r7, r8, lr}
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stmia r1!, {r4, r5, r6, r7, r8, lr}
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ldmia sp!, {r4, r5, r6, r7, r8, pc}
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ldmia r0!, {r4, r5, r6, r7, r12, lr}
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stmia r1!, {r4, r5, r6, r7, r12, lr}
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ldmia r0!, {r4, r5, r6, r7, r12, lr}
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stmia r1!, {r4, r5, r6, r7, r12, lr}
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ldmia r0!, {r4, r5, r6, r7, r12, lr}
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stmia r1!, {r4, r5, r6, r7, r12, lr}
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ldmia sp!, {r4-r7, pc}
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.section IBSS_SECTION_MPA_ARM,"aw",%nobits
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synth_full_sp:
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@ -41,7 +41,7 @@ mpc_decoder_windowing_D:
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/* r2 = D[] */
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/* lr = counter */
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stmfd sp!, {r4-r12, lr}
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stmfd sp!, {r4-r11, lr}
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mov lr, #32
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.loop32:
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@ -86,7 +86,7 @@ mpc_decoder_windowing_D:
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subs lr, lr, #1
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bgt .loop32
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ldmfd sp!, {r4-r12, pc}
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ldmfd sp!, {r4-r11, pc}
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.mpc_dewindowing_end:
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.size mpc_decoder_windowing_D,.mpc_dewindowing_end-mpc_decoder_windowing_D
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#else
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@ -110,55 +110,55 @@ mpc_decoder_windowing_D:
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/************************************************************************
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* Reference implementation.
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***********************************************************************/
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stmfd sp!, {r4-r9, lr}
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stmfd sp!, {r4-r8, lr}
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mov lr, #32
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.loop32:
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ldmia r2!, { r3-r6 } /* load D[00..03] */
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ldr r7, [r1] /* 0 */
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smull r8, r9, r7, r3
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smull r8, r12, r7, r3
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ldr r7, [r1, #96*4] /* 1 */
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smlal r8, r9, r7, r4
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smlal r8, r12, r7, r4
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ldr r7, [r1, #128*4] /* 2 */
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smlal r8, r9, r7, r5
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smlal r8, r12, r7, r5
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ldr r7, [r1, #224*4] /* 3 */
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smlal r8, r9, r7, r6
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smlal r8, r12, r7, r6
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ldmia r2!, { r3-r6 } /* load D[04..07] */
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ldr r7, [r1, #256*4] /* 4 */
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smlal r8, r9, r7, r3
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smlal r8, r12, r7, r3
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ldr r7, [r1, #352*4] /* 5 */
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smlal r8, r9, r7, r4
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smlal r8, r12, r7, r4
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ldr r7, [r1, #384*4] /* 6 */
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smlal r8, r9, r7, r5
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smlal r8, r12, r7, r5
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ldr r7, [r1, #480*4] /* 7 */
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smlal r8, r9, r7, r6
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smlal r8, r12, r7, r6
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ldmia r2!, { r3-r6 } /* load D[08..11] */
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ldr r7, [r1, #512*4] /* 8 */
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smlal r8, r9, r7, r3
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smlal r8, r12, r7, r3
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ldr r7, [r1, #608*4] /* 9 */
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smlal r8, r9, r7, r4
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smlal r8, r12, r7, r4
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ldr r7, [r1, #640*4] /* 10 */
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smlal r8, r9, r7, r5
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smlal r8, r12, r7, r5
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ldr r7, [r1, #736*4] /* 11 */
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smlal r8, r9, r7, r6
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smlal r8, r12, r7, r6
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ldmia r2!, { r3-r6 } /* load D[12..15] */
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ldr r7, [r1, #768*4] /* 12 */
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smlal r8, r9, r7, r3
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smlal r8, r12, r7, r3
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ldr r7, [r1, #864*4] /* 13 */
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smlal r8, r9, r7, r4
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smlal r8, r12, r7, r4
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ldr r7, [r1, #896*4] /* 14 */
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smlal r8, r9, r7, r5
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smlal r8, r12, r7, r5
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ldr r7, [r1, #992*4] /* 15 */
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smlal r8, r9, r7, r6
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smlal r8, r12, r7, r6
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mov r8, r8, lsr #16
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orr r8, r8, r9, lsl #16 /* (lo>>16) || (hi<<16) */
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orr r8, r8, r12, lsl #16 /* (lo>>16) || (hi<<16) */
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str r8, [r0], #4 /* store Data */
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add r1, r1, #4 /* V++ */
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subs lr, lr, #1
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bgt .loop32
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ldmfd sp!, {r4-r9, pc}
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ldmfd sp!, {r4-r8, pc}
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#else
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mpc_decoder_windowing_D:
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/* r0 = Data[] */
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@ -174,7 +174,7 @@ mpc_decoder_windowing_D:
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* The row V[16] can be extracted as it has symmetries within this single
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* row. 8 smull/mlal and 8 ldr's can be saved.
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***********************************************************************/
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stmfd sp!, {r4-r12, lr}
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stmfd sp!, {r4-r11, lr}
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/******************************************
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* row 0 with internal symmetry
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@ -356,7 +356,7 @@ mpc_decoder_windowing_D:
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str r8, [r0], #4 /* store Data */
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add r1, r1, #4 /* V++ */
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ldmfd sp!, {r4-r12, pc}
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ldmfd sp!, {r4-r11, pc}
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#endif
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.mpc_dewindowing_end:
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.size mpc_decoder_windowing_D,.mpc_dewindowing_end-mpc_decoder_windowing_D
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@ -32,14 +32,14 @@
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.type channels_process_sound_chan_mono, %function
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channels_process_sound_chan_mono:
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@ input: r0 = count, r1 = buf
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stmfd sp!, {r4-r6, lr}
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stmfd sp!, {r4-r5, lr}
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ldmia r1, {r2-r3} @ r4 = buf[0], r5 = buf[1]
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.monoloop:
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ldmia r2, {r4-r5}
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ldmia r3, {r6,lr}
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ldmia r3, {r12,lr}
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mov r4, r4, asr #1 @ r4 = r4/2
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add r4, r4, r6, asr #1 @ r4 = r4 + r6/2 = (buf[0]+buf[1])/2
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add r4, r4, r12, asr #1 @ r4 = r4 + r12/2 = (buf[0]+buf[1])/2
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mov r5, r5, asr #1 @ r5 = r5/2
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add r5, r5, lr, asr #1 @ r5 = r5 + lr/2 = (buf[0]+buf[1])/2
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stmia r2!, {r4-r5}
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@ -47,7 +47,7 @@ channels_process_sound_chan_mono:
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subs r0, r0, #2
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bgt .monoloop
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ldmfd sp!, {r4-r6, pc}
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ldmfd sp!, {r4-r5, pc}
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.monoend:
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.size channels_process_sound_chan_mono,.monoend-channels_process_sound_chan_mono
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@ -63,24 +63,24 @@ channels_process_sound_chan_mono:
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.type channels_process_sound_chan_karaoke, %function
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channels_process_sound_chan_karaoke:
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@ input: r0 = count, r1 = buf
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stmfd sp!, {r4-r6, lr}
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stmfd sp!, {r4-r5, lr}
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ldmia r1, {r2-r3} @ r4 = buf[0], r5 = buf[1]
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.karaokeloop:
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ldmia r2, {r4-r5}
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ldmia r3, {r6,lr}
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mov r6, r6, asr #1 @ r6 = r6/2
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rsb r4, r6, r4, asr #1 @ r4 = -r6 + r4/2 = (buf[0]-buf[1])/2
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rsb r6, r4, #0 @ r6 = -r4
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ldmia r3, {r12,lr}
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mov r12, r12, asr #1 @ r12 = r12/2
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rsb r4, r12, r4, asr #1 @ r4 = -r12 + r4/2 = (buf[0]-buf[1])/2
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rsb r12, r4, #0 @ r12 = -r4
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mov lr, lr, asr #1 @ lr = lr/2
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rsb r5, lr, r5, asr #1 @ r5 = -lr + r5/2 = (buf[0]-buf[1])/2
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rsb lr, r5, #0 @ lr = -r5
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stmia r2!, {r4-r5}
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stmia r3!, {r6,lr}
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stmia r3!, {r12,lr}
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subs r0, r0, #2
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bgt .karaokeloop
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ldmfd sp!, {r4-r6, pc}
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ldmfd sp!, {r4-r5, pc}
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.karaokeend:
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.size channels_process_sound_chan_karaoke,.karaokeend-channels_process_sound_chan_karaoke
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@ -97,7 +97,7 @@ channels_process_sound_chan_karaoke:
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.type sample_output_mono, %function
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sample_output_mono:
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@ input: r0 = count, r1 = data, r2 = src, r3 = dst
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stmfd sp!, {r4-r9, lr}
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stmfd sp!, {r4-r7, lr}
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ldr r4, [r2] @ r4 = src[0]
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ldr r5, [r1] @ lr = data->output_scale
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@ -105,8 +105,8 @@ sample_output_mono:
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mov r2, #1
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mov r2, r2, asl r1 @ r2 = 1<<r1 = 1 << (scale-1)
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mvn r1, #0x8000 @ r1 needed for clipping
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mov r8, #0xff00
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orr r8, r8, #0xff @ r8 needed for masking
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mov r12, #0xff00
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orr r12, r12, #0xff @ r12 needed for masking
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.somloop:
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ldmia r4!, {r6-r7}
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@ -121,16 +121,16 @@ sample_output_mono:
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teq lr, lr, asr #31
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eorne r7, r1, lr, asr #31 @ Clip (-32768...+32767)
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and r6, r6, r8
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and r6, r6, r12
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orr r6, r6, r6, asl #16 @ pack first 2 halfwords into 1 word
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and r7, r7, r8
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and r7, r7, r12
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orr r7, r7, r7, asl #16 @ pack last 2 halfwords into 1 word
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stmia r3!, {r6-r7}
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subs r0, r0, #2
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bgt .somloop
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ldmfd sp!, {r4-r9, pc}
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ldmfd sp!, {r4-r7, pc}
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.somend:
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.size sample_output_mono,.somend-sample_output_mono
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@ -147,7 +147,7 @@ sample_output_mono:
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.type sample_output_stereo, %function
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sample_output_stereo:
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@ input: r0 = count, r1 = data, r2 = src, r3 = dst
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stmfd sp!, {r4-r11, lr}
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stmfd sp!, {r4-r10, lr}
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ldmia r2, {r4-r5} @ r4 = src[0], r5 = src[1]
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ldr r6, [r1] @ r6 = data->output_scale
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@ -155,8 +155,8 @@ sample_output_stereo:
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mov r2, #1
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mov r2, r2, asl r1 @ r2 = 1<<r1 = 1 << (scale-1)
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mvn r1, #0x8000 @ r1 needed for clipping
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mov r11, #0xff00
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orr r11, r11, #0xff @ r11 needed for masking
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mov r12, #0xff00
|
||||
orr r12, r12, #0xff @ r12 needed for masking
|
||||
|
||||
.sosloop:
|
||||
ldmia r4!, {r7-r8}
|
||||
|
|
@ -183,16 +183,16 @@ sample_output_stereo:
|
|||
teq lr, lr, asr #31
|
||||
eorne r10, r1, lr, asr #31 @ Clip (-32768...+32767)
|
||||
|
||||
and r7, r7, r11
|
||||
and r7, r7, r12
|
||||
orr r9, r7, r9, asl #16 @ pack first 2 halfwords into 1 word
|
||||
and r8, r8, r11
|
||||
and r8, r8, r12
|
||||
orr r10, r8, r10, asl #16 @ pack last 2 halfwords into 1 word
|
||||
stmia r3!, {r9-r10}
|
||||
|
||||
subs r0, r0, #2
|
||||
bgt .sosloop
|
||||
|
||||
ldmfd sp!, {r4-r11, pc}
|
||||
ldmfd sp!, {r4-r10, pc}
|
||||
.sosend:
|
||||
.size sample_output_stereo,.sosend-sample_output_stereo
|
||||
|
||||
|
|
|
|||
|
|
@ -268,7 +268,7 @@
|
|||
bx lr
|
||||
|
||||
mpeg2_idct_copy:
|
||||
stmfd sp!, { r1-r2, r4-r12, lr }
|
||||
stmfd sp!, { r1-r2, r4-r11, lr }
|
||||
bl .idct
|
||||
ldmfd sp!, { r1-r2 }
|
||||
mov r11, #0
|
||||
|
|
@ -313,7 +313,7 @@ mpeg2_idct_copy:
|
|||
add r1, r1, r2
|
||||
cmp r0, r12
|
||||
blo 1b
|
||||
ldmfd sp!, { r4-r12, pc }
|
||||
ldmfd sp!, { r4-r11, pc }
|
||||
|
||||
mpeg2_idct_add:
|
||||
cmp r0, #129
|
||||
|
|
@ -324,7 +324,7 @@ mpeg2_idct_add:
|
|||
cmp r1, #0x40
|
||||
bne 3f
|
||||
1:
|
||||
stmfd sp!, { r2-r12, lr }
|
||||
stmfd sp!, { r2-r11, lr }
|
||||
bl .idct
|
||||
ldmfd sp!, { r1-r2 }
|
||||
mov r11, #0
|
||||
|
|
@ -385,24 +385,20 @@ mpeg2_idct_add:
|
|||
add r1, r1, r2
|
||||
cmp r0, r12
|
||||
blo 2b
|
||||
ldmfd sp!, { r4-r12, pc }
|
||||
ldmfd sp!, { r4-r11, pc }
|
||||
3:
|
||||
stmfd sp!, { r4-r11 }
|
||||
stmfd sp!, { r4-r6, lr }
|
||||
ldrsh r1, [r0, #0] /* r1 = block[0] */
|
||||
mov r11, #0
|
||||
strh r11, [r0, #0] /* block[0] = 0 */
|
||||
strh r11, [r0, #126] /* block[63] = 0 */
|
||||
mov r4, #0
|
||||
strh r4, [r0, #0] /* block[0] = 0 */
|
||||
strh r4, [r0, #126] /* block[63] = 0 */
|
||||
add r1, r1, #64 /* r1 = DC << 7 */
|
||||
add r0, r2, r3, asl #3
|
||||
4:
|
||||
ldrb r4, [r2, #0]
|
||||
ldrb r5, [r2, #1]
|
||||
ldrb r6, [r2, #2]
|
||||
ldrb r7, [r2, #3]
|
||||
ldrb r8, [r2, #4]
|
||||
ldrb r9, [r2, #5]
|
||||
ldrb r10, [r2, #6]
|
||||
ldrb r11, [r2, #7]
|
||||
ldrb lr, [r2, #3]
|
||||
add r4, r4, r1, asr #7
|
||||
cmp r4, #255
|
||||
mvnhi r4, r4, asr #31
|
||||
|
|
@ -415,28 +411,31 @@ mpeg2_idct_add:
|
|||
cmp r6, #255
|
||||
mvnhi r6, r6, asr #31
|
||||
strb r6, [r2, #2]
|
||||
add r7, r7, r1, asr #7
|
||||
cmp r7, #255
|
||||
mvnhi r7, r7, asr #31
|
||||
strb r7, [r2, #3]
|
||||
add r8, r8, r1, asr #7
|
||||
cmp r8, #255
|
||||
mvnhi r8, r8, asr #31
|
||||
strb r8, [r2, #4]
|
||||
add r9, r9, r1, asr #7
|
||||
cmp r9, #255
|
||||
mvnhi r9, r9, asr #31
|
||||
strb r9, [r2, #5]
|
||||
add r10, r10, r1, asr #7
|
||||
cmp r10, #255
|
||||
mvnhi r10, r10, asr #31
|
||||
strb r10, [r2, #6]
|
||||
add r11, r11, r1, asr #7
|
||||
cmp r11, #255
|
||||
mvnhi r11, r11, asr #31
|
||||
strb r11, [r2, #7]
|
||||
add lr, lr, r1, asr #7
|
||||
cmp lr, #255
|
||||
mvnhi lr, lr, asr #31
|
||||
strb lr, [r2, #3]
|
||||
ldrb r4, [r2, #4]
|
||||
ldrb r5, [r2, #5]
|
||||
ldrb r6, [r2, #6]
|
||||
ldrb lr, [r2, #7]
|
||||
add r4, r4, r1, asr #7
|
||||
cmp r4, #255
|
||||
mvnhi r4, r4, asr #31
|
||||
strb r4, [r2, #4]
|
||||
add r5, r5, r1, asr #7
|
||||
cmp r5, #255
|
||||
mvnhi r5, r5, asr #31
|
||||
strb r5, [r2, #5]
|
||||
add r6, r6, r1, asr #7
|
||||
cmp r6, #255
|
||||
mvnhi r6, r6, asr #31
|
||||
strb r6, [r2, #6]
|
||||
add lr, lr, r1, asr #7
|
||||
cmp lr, #255
|
||||
mvnhi lr, lr, asr #31
|
||||
strb lr, [r2, #7]
|
||||
add r2, r2, r3
|
||||
cmp r2, r0
|
||||
blo 4b
|
||||
ldmfd sp!, { r4-r11 }
|
||||
bx lr
|
||||
ldmfd sp!, { r4-r6, pc }
|
||||
|
|
|
|||
|
|
@ -196,7 +196,7 @@ L_W0246:
|
|||
|
||||
|
||||
mpeg2_idct_copy:
|
||||
stmfd sp!, {r1-r2, r4-r12, lr}
|
||||
stmfd sp!, {r1-r2, r4-r11, lr}
|
||||
bl .idct
|
||||
ldmfd sp!, {r1-r2}
|
||||
|
||||
|
|
@ -230,7 +230,7 @@ mpeg2_idct_copy:
|
|||
cmp r0, r12
|
||||
blo 1b
|
||||
|
||||
ldmfd sp!, {r4-r12, pc}
|
||||
ldmfd sp!, {r4-r11, pc}
|
||||
|
||||
mpeg2_idct_add:
|
||||
cmp r0, #129
|
||||
|
|
@ -241,7 +241,7 @@ mpeg2_idct_add:
|
|||
cmp r1, #0x40
|
||||
bne 3f
|
||||
1:
|
||||
stmfd sp!, {r2-r12, lr}
|
||||
stmfd sp!, {r2-r11, lr}
|
||||
bl .idct
|
||||
ldmfd sp!, {r1-r2}
|
||||
mov r11, #0
|
||||
|
|
@ -287,21 +287,21 @@ mpeg2_idct_add:
|
|||
add r1, r1, r2
|
||||
cmp r0, r12
|
||||
blo 2b
|
||||
ldmfd sp!, {r4-r12, pc}
|
||||
ldmfd sp!, {r4-r11, pc}
|
||||
|
||||
3:
|
||||
stmfd sp!, {r4-r7}
|
||||
stmfd sp!, {r4-r6, lr}
|
||||
ldrsh r1, [r0, #0] /* r1 = block[0] */
|
||||
mov r11, #0
|
||||
strh r11, [r0, #0] /* block[0] = 0 */
|
||||
strh r11, [r0, #126] /* block[63] = 0 */
|
||||
mov r4, #0
|
||||
strh r4, [r0, #0] /* block[0] = 0 */
|
||||
strh r4, [r0, #126] /* block[63] = 0 */
|
||||
add r1, r1, #64 /* r1 = DC << 7 */
|
||||
add r0, r2, r3, asl #3
|
||||
4:
|
||||
ldrb r4, [r2, #0]
|
||||
ldrb r5, [r2, #1]
|
||||
ldrb r6, [r2, #2]
|
||||
ldrb r7, [r2, #3]
|
||||
ldrb lr, [r2, #3]
|
||||
add r4, r4, r1, asr #7
|
||||
usat r4, #8, r4
|
||||
strb r4, [r2, #0]
|
||||
|
|
@ -311,13 +311,13 @@ mpeg2_idct_add:
|
|||
add r6, r6, r1, asr #7
|
||||
usat r6, #8, r6
|
||||
strb r6, [r2, #2]
|
||||
add r7, r7, r1, asr #7
|
||||
usat r7, #8, r7
|
||||
strb r7, [r2, #3]
|
||||
add lr, lr, r1, asr #7
|
||||
usat lr, #8, lr
|
||||
strb lr, [r2, #3]
|
||||
ldrb r4, [r2, #4]
|
||||
ldrb r5, [r2, #5]
|
||||
ldrb r6, [r2, #6]
|
||||
ldrb r7, [r2, #7]
|
||||
ldrb lr, [r2, #7]
|
||||
add r4, r4, r1, asr #7
|
||||
usat r4, #8, r4
|
||||
strb r4, [r2, #4]
|
||||
|
|
@ -327,11 +327,10 @@ mpeg2_idct_add:
|
|||
add r6, r6, r1, asr #7
|
||||
usat r6, #8, r6
|
||||
strb r6, [r2, #6]
|
||||
add r7, r7, r1, asr #7
|
||||
usat r7, #8, r7
|
||||
strb r7, [r2, #7]
|
||||
add lr, lr, r1, asr #7
|
||||
usat lr, #8, lr
|
||||
strb lr, [r2, #7]
|
||||
add r2, r2, r3
|
||||
cmp r2, r0
|
||||
blo 4b
|
||||
ldmfd sp!, {r4-r7}
|
||||
bx lr
|
||||
ldmfd sp!, {r4-r6, pc}
|
||||
|
|
|
|||
Loading…
Add table
Add a link
Reference in a new issue