56 lines
1.4 KiB
ArmAsm
56 lines
1.4 KiB
ArmAsm
@ * limitations under the License.
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@ *
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@ *****************************************************************************
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@ * Originally developed and contributed by Ittiam Systems Pvt. Ltd, Bangalore
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@*/
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.text
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.p2align 2
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.global ixheaacd_mps_synt_out_calc_armv7
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ixheaacd_mps_synt_out_calc_armv7:
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STMFD sp!, {r4-r12, r14}
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VPUSH {D8-D15}
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MOV R6, #3
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MUL R7, R0, R6
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ADD R4, R1, R0, LSL #2
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ADD R5, R2, R7, LSL #2
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MOV R6, #5
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LOOP1:
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MOV R8, R0
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LOOP2:
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VLD2.32 {D4, D5}, [R3]!
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VLD1.32 {D0, D1}, [R2]!
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VLD1.32 {D2, D3}, [R5]!
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VLD2.32 {D6, D7}, [R3]!
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VMULL.S32 Q4, D0, D4
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VMULL.S32 Q5, D1, D6
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VMULL.S32 Q6, D2, D5
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VMULL.S32 Q7, D3, D7
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VSHRN.S64 D8, Q4, #31
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VSHRN.S64 D9, Q5, #31
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VSHRN.S64 D12, Q6, #31
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VSHRN.S64 D13, Q7, #31
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SUBS R8, R8, #4
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VST1.32 {D8, D9}, [R1]!
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VST1.32 {D12, D13}, [R4]!
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BGT LOOP2
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SUBS R6, R6, #1
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ADD R1, R1, R0, LSL #2
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ADD R4, R4, R0, LSL #2
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ADD R2, R2, R7, LSL #2
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ADD R5, R5, R7, LSL #2
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BGT LOOP1
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VPOP {D8-D15}
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LDMFD sp!, {r4-r12, r15}
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