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