dsputil_arm_s.s

来自「这是著名的TCPMP播放器在WINDWOWS,和WINCE下编译通过的源程序.笔」· S 代码 · 共 695 行 · 第 1/2 页

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        ldrne pc, [r5]
1:
        ldmia r1, {r4-r5}
        add r1, r1, r2
6:      ldmia r1, {r6-r7}
        add r1, r1, r2
        pld [r1]
        RND_AVG32 r8, r9, r4, r5, r6, r7, r12
        ldmia r1, {r4-r5}
        add r1, r1, r2
        stmia r0, {r8-r9}
        add r0, r0, r2
        pld [r1]
        RND_AVG32 r8, r9, r6, r7, r4, r5, r12
        subs r3, r3, #1
        stmia r0, {r8-r9}
        add r0, r0, r2
        bne 6b
        ldmfd sp!, {r4-r11,pc}
        .align 2
2:
        ldmia r1, {r4-r6}
        add r1, r1, r2
        pld [r1]
        ADJ_ALIGN_DOUBLEWORD 1, r4, r5, r6
6:      ldmia r1, {r7-r9}
        add r1, r1, r2
        pld [r1]
        ADJ_ALIGN_DOUBLEWORD 1, r7, r8, r9
        RND_AVG32 r10, r11, r4, r5, r7, r8, r12
        stmia r0, {r10-r11}
        add r0, r0, r2
        ldmia r1, {r4-r6}
        add r1, r1, r2
        pld [r1]
        ADJ_ALIGN_DOUBLEWORD 1, r4, r5, r6
        subs r3, r3, #1
        RND_AVG32 r10, r11, r7, r8, r4, r5, r12
        stmia r0, {r10-r11}
        add r0, r0, r2
        bne 6b
        ldmfd sp!, {r4-r11,pc}
        .align 2
3:
        ldmia r1, {r4-r6}
        add r1, r1, r2
        pld [r1]
        ADJ_ALIGN_DOUBLEWORD 2, r4, r5, r6
6:      ldmia r1, {r7-r9}
        add r1, r1, r2
        pld [r1]
        ADJ_ALIGN_DOUBLEWORD 2, r7, r8, r9
        RND_AVG32 r10, r11, r4, r5, r7, r8, r12
        stmia r0, {r10-r11}
        add r0, r0, r2
        ldmia r1, {r4-r6}
        add r1, r1, r2
        pld [r1]
        ADJ_ALIGN_DOUBLEWORD 2, r4, r5, r6
        subs r3, r3, #1
        RND_AVG32 r10, r11, r7, r8, r4, r5, r12
        stmia r0, {r10-r11}
        add r0, r0, r2
        bne 6b
        ldmfd sp!, {r4-r11,pc}
        .align 2
4:
        ldmia r1, {r4-r6}
        add r1, r1, r2
        pld [r1]
        ADJ_ALIGN_DOUBLEWORD 3, r4, r5, r6
6:      ldmia r1, {r7-r9}
        add r1, r1, r2
        pld [r1]
        ADJ_ALIGN_DOUBLEWORD 3, r7, r8, r9
        RND_AVG32 r10, r11, r4, r5, r7, r8, r12
        stmia r0, {r10-r11}
        add r0, r0, r2
        ldmia r1, {r4-r6}
        add r1, r1, r2
        pld [r1]
        ADJ_ALIGN_DOUBLEWORD 3, r4, r5, r6
        subs r3, r3, #1
        RND_AVG32 r10, r11, r7, r8, r4, r5, r12
        stmia r0, {r10-r11}
        add r0, r0, r2
        bne 6b
        ldmfd sp!, {r4-r11,pc}

        .align 2
5:
        .word 0xFEFEFEFE
        .word 2b
        .word 3b
        .word 4b

        .align 2
        .global put_no_rnd_pixels8_y2_arm
put_no_rnd_pixels8_y2_arm:
        @ void func(uint8_t *block, const uint8_t *pixels, int line_size, int h)
        @ block = word aligned, pixles = unaligned
        pld [r1]
        stmfd sp!, {r4-r11,lr} @ R14 is also called LR
        adr r5, 5f
        ands r4, r1, #3
        mov r3, r3, lsr #1
        ldr r12, [r5]
        add r5, r5, r4, lsl #2
        bic r1, r1, #3
        ldrne pc, [r5]
1:
        ldmia r1, {r4-r5}
        add r1, r1, r2
6:      ldmia r1, {r6-r7}
        add r1, r1, r2
        pld [r1]
        NO_RND_AVG32 r8, r9, r4, r5, r6, r7, r12
        ldmia r1, {r4-r5}
        add r1, r1, r2
        stmia r0, {r8-r9}
        add r0, r0, r2
        pld [r1]
        NO_RND_AVG32 r8, r9, r6, r7, r4, r5, r12
        subs r3, r3, #1
        stmia r0, {r8-r9}
        add r0, r0, r2
        bne 6b
        ldmfd sp!, {r4-r11,pc}
        .align 2
2:
        ldmia r1, {r4-r6}
        add r1, r1, r2
        pld [r1]
        ADJ_ALIGN_DOUBLEWORD 1, r4, r5, r6
6:      ldmia r1, {r7-r9}
        add r1, r1, r2
        pld [r1]
        ADJ_ALIGN_DOUBLEWORD 1, r7, r8, r9
        NO_RND_AVG32 r10, r11, r4, r5, r7, r8, r12
        stmia r0, {r10-r11}
        add r0, r0, r2
        ldmia r1, {r4-r6}
        add r1, r1, r2
        pld [r1]
        ADJ_ALIGN_DOUBLEWORD 1, r4, r5, r6
        subs r3, r3, #1
        NO_RND_AVG32 r10, r11, r7, r8, r4, r5, r12
        stmia r0, {r10-r11}
        add r0, r0, r2
        bne 6b
        ldmfd sp!, {r4-r11,pc}
        .align 2
3:
        ldmia r1, {r4-r6}
        add r1, r1, r2
        pld [r1]
        ADJ_ALIGN_DOUBLEWORD 2, r4, r5, r6
6:      ldmia r1, {r7-r9}
        add r1, r1, r2
        pld [r1]
        ADJ_ALIGN_DOUBLEWORD 2, r7, r8, r9
        NO_RND_AVG32 r10, r11, r4, r5, r7, r8, r12
        stmia r0, {r10-r11}
        add r0, r0, r2
        ldmia r1, {r4-r6}
        add r1, r1, r2
        pld [r1]
        ADJ_ALIGN_DOUBLEWORD 2, r4, r5, r6
        subs r3, r3, #1
        NO_RND_AVG32 r10, r11, r7, r8, r4, r5, r12
        stmia r0, {r10-r11}
        add r0, r0, r2
        bne 6b
        ldmfd sp!, {r4-r11,pc}
        .align 2
4:
        ldmia r1, {r4-r6}
        add r1, r1, r2
        pld [r1]
        ADJ_ALIGN_DOUBLEWORD 3, r4, r5, r6
6:      ldmia r1, {r7-r9}
        add r1, r1, r2
        pld [r1]
        ADJ_ALIGN_DOUBLEWORD 3, r7, r8, r9
        NO_RND_AVG32 r10, r11, r4, r5, r7, r8, r12
        stmia r0, {r10-r11}
        add r0, r0, r2
        ldmia r1, {r4-r6}
        add r1, r1, r2
        pld [r1]
        ADJ_ALIGN_DOUBLEWORD 3, r4, r5, r6
        subs r3, r3, #1
        NO_RND_AVG32 r10, r11, r7, r8, r4, r5, r12
        stmia r0, {r10-r11}
        add r0, r0, r2
        bne 6b
        ldmfd sp!, {r4-r11,pc}
        .align 2
5:
        .word 0xFEFEFEFE
        .word 2b
        .word 3b
        .word 4b

@ ----------------------------------------------------------------
.macro  RND_XY2_IT align, rnd
        @ l1=  (a & 0x03030303) + (b & 0x03030303) ?(+ 0x02020202)
        @ h1= ((a & 0xFCFCFCFCUL) >> 2) + ((b & 0xFCFCFCFCUL) >> 2)
.if \align == 0
        ldmia r1, {r6-r8}
.elseif \align == 3
        ldmia r1, {r5-r7}
.else
        ldmia r1, {r8-r10}
.endif
        add r1, r1, r2
        pld [r1]
.if \align == 0
        ADJ_ALIGN_DOUBLEWORD_D 1, r4, r5, r6, r7, r8
.elseif \align == 1
        ADJ_ALIGN_DOUBLEWORD_D 1, r4, r5, r8, r9, r10
        ADJ_ALIGN_DOUBLEWORD_D 2, r6, r7, r8, r9, r10
.elseif \align == 2
        ADJ_ALIGN_DOUBLEWORD_D 2, r4, r5, r8, r9, r10
        ADJ_ALIGN_DOUBLEWORD_D 3, r6, r7, r8, r9, r10
.elseif \align == 3
        ADJ_ALIGN_DOUBLEWORD_D 3, r4, r5, r5, r6, r7
.endif
        ldr r14, [r12, #0]      @ 0x03030303
        tst r3, #1
        and r8, r4, r14
        and r9, r5, r14
        and r10, r6, r14
        and r11, r7, r14
.if \rnd == 1
        ldreq r14, [r12, #16]   @ 0x02020202
.else
        ldreq r14, [r12, #28]   @ 0x01010101
.endif
        add r8, r8, r10
        add r9, r9, r11
        addeq r8, r8, r14
        addeq r9, r9, r14
        ldr r14, [r12, #20]     @ 0xFCFCFCFC >> 2
        and r4, r14, r4, lsr #2
        and r5, r14, r5, lsr #2
        and r6, r14, r6, lsr #2
        and r7, r14, r7, lsr #2
        add r10, r4, r6
        add r11, r5, r7
.endm

.macro RND_XY2_EXPAND align, rnd
        RND_XY2_IT \align, \rnd
6:      stmfd sp!, {r8-r11}
        RND_XY2_IT \align, \rnd
        ldmfd sp!, {r4-r7}
        add r4, r4, r8
        add r5, r5, r9
        add r6, r6, r10
        add r7, r7, r11
        ldr r14, [r12, #24]     @ 0x0F0F0F0F
        and r4, r14, r4, lsr #2
        and r5, r14, r5, lsr #2
        add r4, r4, r6
        add r5, r5, r7
        subs r3, r3, #1
        stmia r0, {r4-r5}
        add r0, r0, r2
        bne 6b
        ldmfd sp!, {r4-r11,pc}
.endm

        .align 2
        .global put_pixels8_xy2_arm
put_pixels8_xy2_arm:
        @ void func(uint8_t *block, const uint8_t *pixels, int line_size, int h)
        @ block = word aligned, pixles = unaligned
        pld [r1]
        stmfd sp!, {r4-r11,lr} @ R14 is also called LR
        adrl r12, 5f
        ands r4, r1, #3
        add r5, r12, r4, lsl #2
        bic r1, r1, #3
        ldrne pc, [r5]
1:
        RND_XY2_EXPAND 0, 1

        .align 2
2:
        RND_XY2_EXPAND 1, 1
        
        .align 2
3:
        RND_XY2_EXPAND 2, 1
        
        .align 2
4:
        RND_XY2_EXPAND 3, 1
        
5:
        .word 0x03030303
        .word 2b
        .word 3b
        .word 4b
        .word 0x02020202
        .word 0xFCFCFCFC >> 2
        .word 0x0F0F0F0F
        .word 0x01010101

        .align 2
        .global put_no_rnd_pixels8_xy2_arm
put_no_rnd_pixels8_xy2_arm:
        @ void func(uint8_t *block, const uint8_t *pixels, int line_size, int h)
        @ block = word aligned, pixles = unaligned
        pld [r1]
        stmfd sp!, {r4-r11,lr} @ R14 is also called LR
        adrl r12, 5f
        ands r4, r1, #3
        add r5, r12, r4, lsl #2
        bic r1, r1, #3
        ldrne pc, [r5]
1:
        RND_XY2_EXPAND 0, 0

        .align 2
2:
        RND_XY2_EXPAND 1, 0
        
        .align 2
3:
        RND_XY2_EXPAND 2, 0
        
        .align 2
4:
        RND_XY2_EXPAND 3, 0
        
5:
        .word 0x03030303
        .word 2b
        .word 3b
        .word 4b
        .word 0x02020202
        .word 0xFCFCFCFC >> 2
        .word 0x0F0F0F0F
        .word 0x01010101
12

dsputil_arm_s.s - 源码说明

本页面展示了「这是著名的TCPMP播放器在WINDWOWS,和WINCE下编译通过的源程序.笔者对其中的LIBMAD库做了针对ARM MPU的优化. 并增加了词幕功能.」中的 dsputil_arm_s.s 源码文件，采用 S 编程语言编写，共 695 行代码。您可以在线阅读完整代码内容，也可以返回资源详情页下载完整源码包进行本地学习和开发。

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