77 lines
1.7 KiB
ArmAsm
77 lines
1.7 KiB
ArmAsm
.code 32
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.eabi_attribute 24, 1 @Tag_ABI_align_needed
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.eabi_attribute 25, 1 @Tag_ABI_align_preserved
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.text
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.p2align 2
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.global ixheaacd_shiftrountine_with_rnd_hq
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.type ixheaacd_shiftrountine_with_rnd_hq, %function
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ixheaacd_shiftrountine_with_rnd_hq:
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STMFD sp!, {r4-r12, r14}
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ADD r12, r2, r3, LSL #2
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MOV r9, #0x8000
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SUBS r3, r3, #1
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BMI S_WITH_R_L6
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S_WITH_R_L5:
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LDR r5, [r1, r3, LSL #2]
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LDR r7, [r0, r3, LSL #2]
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LDR r14, [r0], #4
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LDR r10, [r1], #4
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ADD r6, r5, r7
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SUB r5, r5, r7
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ADD r7, r10, r14
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SUB r4, r10, r14
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MOVS r10, r4, ASR #0x19
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CMNLT r10, #1
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MOVLT r4, #0x80000000
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MVNGT r4, #0x80000000
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MOVEQ r4, r4, LSL #6
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MOVS r10, r5, ASR #0x19
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CMNLT r10, #1
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MOVLT r5, #0x80000000
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MVNGT r5, #0x80000000
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MOVEQ r5, r5, LSL #6
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MOV r14, r3, lsl #2
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MOVS r10, r6, ASR #0x19
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CMNLT r10, #1
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MOVLT r6, #0x80000000
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STR r5, [r2, r14]
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MVNGT r6, #0x80000000
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MOVEQ r6, r6, LSL #6
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MOVS r10, r7, ASR #0x19
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CMNLT r10, #1
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MOVLT r7, #0x80000000
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MVNGT r7, #0x80000000
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MOVEQ r7, r7, LSL #6
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STR r4, [r2], #4
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STR r7, [r12, r14]
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SUBS r3, r3, #2
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STR r6, [r12], #4
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BGE S_WITH_R_L5
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S_WITH_R_L6:
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LDMFD sp!, {r4-r12, r15}
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