core_armv5e_gcc.s

著名的 helix realplayer 基于手机 symbian 系统的 播放器全套源代码

        SMLABB   r5,r10,r9,r5
        SMLABB   r4,r7,r6,r4
        SMLABT   r7,r7,r9,r5
        LDRH     r10,[lr,#2]
        SMLABT   r8,r8,r6,r4
        LDRH     r4,[lr],#-2
        LDRH     r9,[lr],#-2
        LDR      r5,[r1],#4
        LDR      r6,[r0],#4
        SMLABB   r7,r4,r5,r7
        SMLABB   r8,r10,r6,r8
        SMLABT   r5,r9,r5,r7
        SMLABT   r4,r4,r6,r8
        LDR      r6,[sp,#4]
        SUBS     r6,r6,#1
        STR      r6,[sp,#4]
        BNE      L1_964
L1_1052:
        LDR      r6,[sp,#0xc]
        TST      r6,#1
        BEQ      L1_1112
        LDRH     r6,[r11],#2
        LDRH     r8,[r2],#2
        LDRH     r7,[r11,#0]
        LDRH     r9,[r12],#2
        SMLABB   r5,r6,r8,r5
        LDRH     r8,[r1],#2
        SMLABB   r4,r7,r9,r4
        LDRH     r7,[lr,#0]
        LDRH     r6,[lr,#2]
        LDRH     lr,[r0],#2
        SMLABB   r5,r7,r8,r5
        SMLABB   r4,r6,lr,r4
L1_1112:
        SUB      lr,r4,r5
        LDR      r4,[sp,#0]
        MOV      r4,r4,LSR #1
        SMULL    r6,lr,r4,lr
        LDR      r4,[sp,#0x2c]
        QDADD    lr,r5,lr
        QADD     lr,lr,lr
        MOV      lr,lr,ASR #16
        STRH     lr,[r4],#2
        STR      r4,[sp,#0x2c]
        LDR      lr,[r3,#0x20]
        LDR      r4,[sp,#0]
        ADD      r4,lr,r4
        STR      r4,[sp,#0]
        CMP      lr,r4
        BLS      L1_1192
        LDR      r6,[sp,#8]
        MOV      r1,r0
        MOV      r2,r12
        ADD      r11,r11,r6,LSL #1
L1_1192:
        LDR      r0,[r3,#0x34]
        CMP      r0,r1
        LDRCS    r0,[sp,#0x14]
        LDRCC    r0,[sp,#0x18]
        LDR      r12,[r0,#0]
        ADD      r1,r1,r12,LSL #1
        LDR      r12,[r0,#4]
        LDR      r0,[r0,#8]
        ADD      r2,r2,r12,LSL #1
        ADD      r11,r11,r0,LSL #1
        LDR      r0,[r3,#0x50]
        CMP      r0,r1
        LDRHI    lr,[sp,#0x1c]
        LDRLS    lr,[sp,#0x20]
        LDR      r0,[lr,#0]
        LDR      r12,[lr,#4]
        LDR      r6,[lr,#8]
        ADD      r0,r1,r0,LSL #1
        ADD      r12,r2,r12,LSL #1
        STR      r6,[sp,#8]
        LDR      r4,[sp,#0x28]
        ADD      lr,r11,r6,LSL #1
        CMP      lr,r4
        BCC      L1_780
L1_1288:
        LDR      r4,[sp,#0x28]
        SUB      r0,r11,r4
        MOV      r0,r0,ASR #1
        STR      r0,[r3,#0x18]
        STR      r1,[r3,#0x2c]
        STR      r2,[r3,#0x30]
        LDR      r4,[sp,#0]
        STR      r4,[r3,#0x1c]
        LDR      r0,[sp,#0x2c]
        ADD      sp,sp,#0x34
        LDMFD    sp!,{r4-r11,pc}
        

        .global ARBCoreStereo
ARBCoreStereo:
        STMFD    sp!,{r0-r11,lr}
        SUB      sp,sp,#0x1c
        LDR      r3,[sp,#0x28]
        LDR      r1,[r3,#0x2c]
        LDR      r2,[r3,#0x30]
        LDR      r3,[r3,#0x1c]
        STR      r3,[sp,#0]
        LDR      r3,[sp,#0x28]
        LDR      r3,[r3,#0x18]
        ADD      r10,r0,r3,LSL #1
        LDR      r3,[sp,#0x28]
        LDR      r0,[r3,#0x50]!
        ADD      r3,r3,#0x10
        STR      r3,[sp,#0x18]
        LDR      r3,[sp,#0x28]
        CMP      r0,r1
        ADD      r3,r3,#0x54
        STR      r3,[sp,#0x14]
        LDRHI    r3,[sp,#0x14]
        LDRLS    r3,[sp,#0x18]
        LDR      r0,[r3,#0]
        LDR      r12,[r3,#4]
        LDR      r3,[r3,#8]
        ADD      r0,r1,r0,LSL #1
        ADD      r12,r2,r12,LSL #1
        STR      r3,[sp,#8]
L1_1436:
        TST      r1,#3
        BNE      L1_1436
L1_1444:
        TST      r2,#3
        BNE      L1_1444
L1_1452:
        TST      r0,#3
        BNE      L1_1452
L1_1460:
        TST      r12,#3
        BNE      L1_1460
L1_1468:
        TST      r10,#3
        BNE      L1_1468
        LDR      r3,[sp,#8]
        LDR      lr,[sp,#0x20]
        ADD      r3,r10,r3,LSL #1
        ADD      r3,r3,#2
        CMP      r3,lr
        BCS      L1_1968
        LDR      r3,[sp,#0x28]
        ADD      r3,r3,#0x44
        STR      r3,[sp,#0x10]
        LDR      r3,[sp,#0x28]
        ADD      r3,r3,#0x38
        STR      r3,[sp,#0xc]
L1_1524:
        LDR      r3,[sp,#8]
        MOV      lr,#0x4000
        MOV      r7,lr
        CMP      r3,#0
        LDR      r3,[sp,#0x28]
        MOV      r6,lr
        MOV      r4,lr
        SUB      r5,r10,#4
        LDR      r3,[r3,#0xc]
        BNE      L1_1648
        CMP      r3,#0
        BEQ      L1_1748
L1_1572:
        LDRH     r11,[r12],#2
        LDRH     r9,[r2],#2
        LDR      r8,[r10],#4
        SUBS     r3,r3,#1
        ORR      r9,r9,r11,LSL #16
        SMLABB   lr,r8,r9,lr
        SMLATB   r4,r8,r9,r4
        SMLABT   r6,r8,r9,r6
        SMLATT   r9,r8,r9,r7
        LDRH     r11,[r0],#2
        LDRH     r8,[r1],#2
        LDR      r7,[r5],#-4
        ORR      r8,r8,r11,LSL #16
        SMLABB   lr,r7,r8,lr
        SMLATB   r4,r7,r8,r4
        SMLABT   r6,r7,r8,r6
        SMLATT   r7,r7,r8,r9
        BNE      L1_1572
        B        L1_1748
L1_1648:
        STR      r3,[sp,#4]
        CMP      r3,#0
        BEQ      L1_1748
L1_1660:
        LDRH     r11,[r12],#2
        LDRH     r3,[r2],#2
        LDR      r9,[r10],#4
        LDR      r8,[r10,#0]
        ORR      r3,r3,r11,LSL #16
        SMLABB   lr,r9,r3,lr
        SMLABT   r6,r8,r3,r6
        SMLATT   r8,r8,r3,r7
        SMLATB   r4,r9,r3,r4
        LDRH     r11,[r0],#2
        LDRH     r3,[r1],#2
        LDR      r7,[r5,#4]
        LDR      r9,[r5],#-4
        ORR      r3,r3,r11,LSL #16
        SMLABT   r6,r7,r3,r6
        SMLATT   r7,r7,r3,r8
        SMLABB   lr,r9,r3,lr
        SMLATB   r4,r9,r3,r4
        LDR      r3,[sp,#4]
        SUBS     r3,r3,#1
        STR      r3,[sp,#4]
        BNE      L1_1660
L1_1748:
        LDR      r3,[sp,#0]
        SUB      r5,r6,lr
        MOV      r3,r3,LSR #1
        SMULL    r6,r5,r3,r5
        QDADD    lr,lr,r5
        SUB      r5,r7,r4
        SMULL    r6,r5,r3,r5
        QADD     lr,lr,lr
        QDADD    r3,r4,r5
        LDR      r4,[sp,#0x24]
        QADD     r3,r3,r3
        MOV      lr,lr,ASR #16
        STRH     lr,[r4,#0]
        MOV      r3,r3,ASR #16
        STRH     r3,[r4,#2]
        LDR      r3,[sp,#0x28]
        ADD      r4,r4,#4
        STR      r4,[sp,#0x24]
        LDR      r3,[r3,#0x20]
        LDR      lr,[sp,#0]
        ADD      lr,r3,lr
        STR      lr,[sp,#0]
        CMP      r3,lr
        BLS      L1_1860
        LDR      r3,[sp,#8]
        MOV      r1,r0
        MOV      r2,r12
        ADD      r10,r10,r3,LSL #1
L1_1860:
        LDR      r3,[sp,#0x28]
        LDR      r0,[r3,#0x34]
        CMP      r0,r1
        LDRCS    r0,[sp,#0xc]
        LDRCC    r0,[sp,#0x10]
        LDR      r3,[r0,#0]
        ADD      r1,r1,r3,LSL #1
        LDR      r3,[r0,#4]
        LDR      r0,[r0,#8]
        ADD      r2,r2,r3,LSL #1
        ADD      r10,r10,r0,LSL #1
        LDR      r3,[sp,#0x28]
        LDR      r0,[r3,#0x50]
        CMP      r0,r1
        LDRHI    r3,[sp,#0x14]
        LDRLS    r3,[sp,#0x18]
        LDR      r0,[r3,#0]
        LDR      r12,[r3,#4]
        LDR      r3,[r3,#8]
        LDR      lr,[sp,#0x20]
        ADD      r0,r1,r0,LSL #1
        STR      r3,[sp,#8]
        ADD      r12,r2,r12,LSL #1
        ADD      r3,r10,r3,LSL #1
        ADD      r3,r3,#2
        CMP      r3,lr
        BCC      L1_1524
L1_1968:
        LDR      lr,[sp,#0x20]
        LDR      r3,[sp,#0x28]
        SUB      r0,r10,lr
        MOV      r0,r0,ASR #1
        STR      r0,[r3,#0x18]
        LDR      r3,[sp,#0x28]
        STR      r1,[r3,#0x2c]
        LDR      r3,[sp,#0x28]
        STR      r2,[r3,#0x30]
        LDR      r0,[sp,#0x28]
        LDR      r3,[sp,#0]
        STR      r3,[r0,#0x1c]
        LDR      r0,[sp,#0x24]
        ADD      sp,sp,#0x2c
        LDMFD    sp!,{r4-r11,pc}