| /* |
| * Copyright (C) 2007-2008 ARM Limited |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| * |
| */ |
| /* |
| * |
| */ |
| |
| .eabi_attribute 24, 1 |
| .eabi_attribute 25, 1 |
| |
| .arm |
| .fpu neon |
| .text |
| .syntax unified |
| |
| .global armVCM4P10_UnpackBlock4x4 |
| armVCM4P10_UnpackBlock4x4: |
| PUSH {r4-r8,lr} |
| LDR r2,[r0,#0] |
| MOV r7,#0x1f |
| MOV r4,#0 |
| MOV r5,#0 |
| LDRB r3,[r2],#1 |
| STRD r4,r5,[r1,#0] |
| STRD r4,r5,[r1,#8] |
| STRD r4,r5,[r1,#0x10] |
| STRD r4,r5,[r1,#0x18] |
| unpackLoop: |
| TST r3,#0x10 |
| LDRSBNE r5,[r2,#1] |
| LDRBNE r4,[r2],#2 |
| AND r6,r7,r3,LSL #1 |
| LDRSBEQ r4,[r2],#1 |
| ORRNE r4,r4,r5,LSL #8 |
| TST r3,#0x20 |
| LDRBEQ r3,[r2],#1 |
| STRH r4,[r1,r6] |
| BEQ unpackLoop |
| STR r2,[r0,#0] |
| POP {r4-r8,pc} |
| .end |
