797 lines
15 KiB
ArmAsm
797 lines
15 KiB
ArmAsm
// Code generated by command: go run gen.go -out ../decompress.s -arch amd64,arm64 -pkg=huff0. DO NOT EDIT.
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// EXPERIMENTAL arm64 output lowered from an amd64 avo program.
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//go:build arm64 && (!appengine && !noasm && gc)
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// func decompress4x_main_loop_amd64(ctx *decompress4xContext)
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TEXT ·decompress4x_main_loop_arm64(SB), $0-8
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// Preload values
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MOVD ctx+0(FP), R0
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MOVBU 8(R0), R6
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MOVD 16(R0), R3
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MOVD 48(R0), R5
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MOVD 24(R0), R7
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MOVD 32(R0), R8
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MOVD (R0), R9
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// Main loop
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main_loop:
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MOVD $0, R2
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CMP R5, R3
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CSET GE, R16
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BFI $0, R16, $8, R2
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// br0.fillFast32()
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MOVD 32(R9), R10
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MOVBU 40(R9), R11
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CMP $0x20, R11
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BLS skip_fill0
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MOVD 24(R9), R0
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SUB $0x20, R11, R11
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SUB $0x04, R0, R0
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MOVD (R9), R12
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// b.value |= uint64(low) << (b.bitsRead & 63)
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MOVWU (R0)(R12), R12
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MOVD R11, R1
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LSL R1, R12, R12
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MOVD R0, 24(R9)
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ORR R12, R10, R10
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// exhausted += (br0.off < 4)
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CMP $0x04, R0
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CSINC HS, R2, R2, R16
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BFI $0, R16, $8, R2
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skip_fill0:
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// val0 := br0.peekTopBits(peekBits)
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MOVD R10, R12
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MOVD R6, R1
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LSR R1, R12, R12
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// v0 := table[val0&mask]
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MOVHU (R8)(R12<<1), R1
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// br0.advance(uint8(v0.entry)
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UBFX $8, R1, $8, R0
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LSL R1, R10, R10
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ADD R1, R11, R15
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BFI $0, R15, $8, R11
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// val1 := br0.peekTopBits(peekBits)
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MOVD R6, R1
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MOVD R10, R12
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LSR R1, R12, R12
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// v1 := table[val1&mask]
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MOVHU (R8)(R12<<1), R1
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// br0.advance(uint8(v1.entry))
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UBFX $8, R1, $8, R16
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BFI $8, R16, $8, R0
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LSL R1, R10, R10
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ADD R1, R11, R15
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BFI $0, R15, $8, R11
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// these two writes get coalesced
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// out[id * dstEvery + 0] = uint8(v0.entry >> 8)
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// out[id * dstEvery + 1] = uint8(v1.entry >> 8)
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MOVH R0, (R3)
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// update the bitreader structure
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MOVD R10, 32(R9)
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MOVB R11, 40(R9)
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// br1.fillFast32()
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MOVD 80(R9), R10
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MOVBU 88(R9), R11
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CMP $0x20, R11
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BLS skip_fill1
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MOVD 72(R9), R0
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SUB $0x20, R11, R11
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SUB $0x04, R0, R0
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MOVD 48(R9), R12
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// b.value |= uint64(low) << (b.bitsRead & 63)
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MOVWU (R0)(R12), R12
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MOVD R11, R1
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LSL R1, R12, R12
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MOVD R0, 72(R9)
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ORR R12, R10, R10
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// exhausted += (br1.off < 4)
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CMP $0x04, R0
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CSINC HS, R2, R2, R16
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BFI $0, R16, $8, R2
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skip_fill1:
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// val0 := br1.peekTopBits(peekBits)
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MOVD R10, R12
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MOVD R6, R1
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LSR R1, R12, R12
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// v0 := table[val0&mask]
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MOVHU (R8)(R12<<1), R1
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// br1.advance(uint8(v0.entry)
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UBFX $8, R1, $8, R0
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LSL R1, R10, R10
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ADD R1, R11, R15
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BFI $0, R15, $8, R11
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// val1 := br1.peekTopBits(peekBits)
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MOVD R6, R1
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MOVD R10, R12
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LSR R1, R12, R12
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// v1 := table[val1&mask]
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MOVHU (R8)(R12<<1), R1
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// br1.advance(uint8(v1.entry))
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UBFX $8, R1, $8, R16
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BFI $8, R16, $8, R0
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LSL R1, R10, R10
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ADD R1, R11, R15
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BFI $0, R15, $8, R11
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// these two writes get coalesced
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// out[id * dstEvery + 0] = uint8(v0.entry >> 8)
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// out[id * dstEvery + 1] = uint8(v1.entry >> 8)
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MOVH R0, (R3)(R7)
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// update the bitreader structure
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MOVD R10, 80(R9)
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MOVB R11, 88(R9)
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// br2.fillFast32()
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MOVD 128(R9), R10
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MOVBU 136(R9), R11
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CMP $0x20, R11
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BLS skip_fill2
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MOVD 120(R9), R0
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SUB $0x20, R11, R11
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SUB $0x04, R0, R0
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MOVD 96(R9), R12
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// b.value |= uint64(low) << (b.bitsRead & 63)
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MOVWU (R0)(R12), R12
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MOVD R11, R1
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LSL R1, R12, R12
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MOVD R0, 120(R9)
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ORR R12, R10, R10
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// exhausted += (br2.off < 4)
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CMP $0x04, R0
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CSINC HS, R2, R2, R16
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BFI $0, R16, $8, R2
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skip_fill2:
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// val0 := br2.peekTopBits(peekBits)
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MOVD R10, R12
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MOVD R6, R1
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LSR R1, R12, R12
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// v0 := table[val0&mask]
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MOVHU (R8)(R12<<1), R1
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// br2.advance(uint8(v0.entry)
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UBFX $8, R1, $8, R0
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LSL R1, R10, R10
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ADD R1, R11, R15
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BFI $0, R15, $8, R11
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// val1 := br2.peekTopBits(peekBits)
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MOVD R6, R1
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MOVD R10, R12
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LSR R1, R12, R12
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// v1 := table[val1&mask]
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MOVHU (R8)(R12<<1), R1
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// br2.advance(uint8(v1.entry))
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UBFX $8, R1, $8, R16
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BFI $8, R16, $8, R0
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LSL R1, R10, R10
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ADD R1, R11, R15
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BFI $0, R15, $8, R11
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// these two writes get coalesced
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// out[id * dstEvery + 0] = uint8(v0.entry >> 8)
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// out[id * dstEvery + 1] = uint8(v1.entry >> 8)
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MOVH R0, (R3)(R7<<1)
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// update the bitreader structure
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MOVD R10, 128(R9)
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MOVB R11, 136(R9)
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// br3.fillFast32()
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MOVD 176(R9), R10
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MOVBU 184(R9), R11
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CMP $0x20, R11
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BLS skip_fill3
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MOVD 168(R9), R0
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SUB $0x20, R11, R11
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SUB $0x04, R0, R0
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MOVD 144(R9), R12
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// b.value |= uint64(low) << (b.bitsRead & 63)
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MOVWU (R0)(R12), R12
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MOVD R11, R1
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LSL R1, R12, R12
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MOVD R0, 168(R9)
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ORR R12, R10, R10
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// exhausted += (br3.off < 4)
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CMP $0x04, R0
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CSINC HS, R2, R2, R16
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BFI $0, R16, $8, R2
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skip_fill3:
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// val0 := br3.peekTopBits(peekBits)
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MOVD R10, R12
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MOVD R6, R1
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LSR R1, R12, R12
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// v0 := table[val0&mask]
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MOVHU (R8)(R12<<1), R1
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// br3.advance(uint8(v0.entry)
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UBFX $8, R1, $8, R0
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LSL R1, R10, R10
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ADD R1, R11, R15
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BFI $0, R15, $8, R11
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// val1 := br3.peekTopBits(peekBits)
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MOVD R6, R1
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MOVD R10, R12
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LSR R1, R12, R12
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// v1 := table[val1&mask]
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MOVHU (R8)(R12<<1), R1
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// br3.advance(uint8(v1.entry))
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UBFX $8, R1, $8, R16
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BFI $8, R16, $8, R0
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LSL R1, R10, R10
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ADD R1, R11, R15
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BFI $0, R15, $8, R11
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// these two writes get coalesced
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// out[id * dstEvery + 0] = uint8(v0.entry >> 8)
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// out[id * dstEvery + 1] = uint8(v1.entry >> 8)
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ADD R7<<1, R7, R1
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MOVH R0, (R3)(R1)
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// update the bitreader structure
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MOVD R10, 176(R9)
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MOVB R11, 184(R9)
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ADD $0x02, R3, R3
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TST $0xff, R2
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BEQ main_loop
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MOVD ctx+0(FP), R0
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MOVD 16(R0), R16
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SUB R16, R3, R3
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LSL $0x02, R3, R3
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MOVD R3, 40(R0)
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RET
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// func decompress4x_8b_main_loop_amd64(ctx *decompress4xContext)
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TEXT ·decompress4x_8b_main_loop_arm64(SB), $0-8
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// Preload values
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MOVD ctx+0(FP), R0
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MOVBU 8(R0), R6
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MOVD 16(R0), R3
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MOVD 48(R0), R5
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MOVD 24(R0), R7
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MOVD 32(R0), R8
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MOVD (R0), R9
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// Main loop
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main_loop:
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MOVD $0, R2
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CMP R5, R3
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CSET GE, R16
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BFI $0, R16, $8, R2
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// br0.fillFast32()
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MOVD 32(R9), R10
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MOVBU 40(R9), R11
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CMP $0x20, R11
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BLS skip_fill0
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MOVD 24(R9), R0
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SUB $0x20, R11, R11
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SUB $0x04, R0, R0
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MOVD (R9), R12
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// b.value |= uint64(low) << (b.bitsRead & 63)
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MOVWU (R0)(R12), R12
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MOVD R11, R1
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LSL R1, R12, R12
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MOVD R0, 24(R9)
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ORR R12, R10, R10
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// exhausted += (br0.off < 4)
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CMP $0x04, R0
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CSINC HS, R2, R2, R16
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BFI $0, R16, $8, R2
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skip_fill0:
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// val0 := br0.peekTopBits(peekBits)
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MOVD R10, R0
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MOVD R6, R1
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LSR R1, R0, R0
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// v0 := table[val0&mask]
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MOVHU (R8)(R0<<1), R1
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// br0.advance(uint8(v0.entry)
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UBFX $8, R1, $8, R0
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LSL R1, R10, R10
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ADD R1, R11, R15
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BFI $0, R15, $8, R11
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// val1 := br0.peekTopBits(peekBits)
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MOVD R10, R12
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MOVD R6, R1
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LSR R1, R12, R12
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// v1 := table[val0&mask]
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MOVHU (R8)(R12<<1), R1
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// br0.advance(uint8(v1.entry)
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UBFX $8, R1, $8, R16
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BFI $8, R16, $8, R0
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LSL R1, R10, R10
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ADD R1, R11, R15
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BFI $0, R15, $8, R11
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REVW R0, R0
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// val2 := br0.peekTopBits(peekBits)
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MOVD R10, R12
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MOVD R6, R1
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LSR R1, R12, R12
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// v2 := table[val0&mask]
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MOVHU (R8)(R12<<1), R1
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// br0.advance(uint8(v2.entry)
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UBFX $8, R1, $8, R16
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BFI $8, R16, $8, R0
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LSL R1, R10, R10
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ADD R1, R11, R15
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BFI $0, R15, $8, R11
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// val3 := br0.peekTopBits(peekBits)
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MOVD R10, R12
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MOVD R6, R1
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LSR R1, R12, R12
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// v3 := table[val0&mask]
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MOVHU (R8)(R12<<1), R1
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// br0.advance(uint8(v3.entry)
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UBFX $8, R1, $8, R16
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BFI $0, R16, $8, R0
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LSL R1, R10, R10
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ADD R1, R11, R15
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BFI $0, R15, $8, R11
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REVW R0, R0
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// these four writes get coalesced
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// out[id * dstEvery + 0] = uint8(v0.entry >> 8)
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// out[id * dstEvery + 1] = uint8(v1.entry >> 8)
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// out[id * dstEvery + 3] = uint8(v2.entry >> 8)
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// out[id * dstEvery + 4] = uint8(v3.entry >> 8)
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MOVW R0, (R3)
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// update the bitreader structure
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MOVD R10, 32(R9)
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MOVB R11, 40(R9)
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// br1.fillFast32()
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MOVD 80(R9), R10
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MOVBU 88(R9), R11
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CMP $0x20, R11
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BLS skip_fill1
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MOVD 72(R9), R0
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SUB $0x20, R11, R11
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SUB $0x04, R0, R0
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MOVD 48(R9), R12
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// b.value |= uint64(low) << (b.bitsRead & 63)
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MOVWU (R0)(R12), R12
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MOVD R11, R1
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LSL R1, R12, R12
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MOVD R0, 72(R9)
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ORR R12, R10, R10
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// exhausted += (br1.off < 4)
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CMP $0x04, R0
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CSINC HS, R2, R2, R16
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BFI $0, R16, $8, R2
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skip_fill1:
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// val0 := br1.peekTopBits(peekBits)
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MOVD R10, R0
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MOVD R6, R1
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LSR R1, R0, R0
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// v0 := table[val0&mask]
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MOVHU (R8)(R0<<1), R1
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// br1.advance(uint8(v0.entry)
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UBFX $8, R1, $8, R0
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LSL R1, R10, R10
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ADD R1, R11, R15
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BFI $0, R15, $8, R11
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// val1 := br1.peekTopBits(peekBits)
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MOVD R10, R12
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MOVD R6, R1
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LSR R1, R12, R12
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// v1 := table[val0&mask]
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MOVHU (R8)(R12<<1), R1
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// br1.advance(uint8(v1.entry)
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UBFX $8, R1, $8, R16
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BFI $8, R16, $8, R0
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LSL R1, R10, R10
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ADD R1, R11, R15
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BFI $0, R15, $8, R11
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REVW R0, R0
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// val2 := br1.peekTopBits(peekBits)
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MOVD R10, R12
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MOVD R6, R1
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LSR R1, R12, R12
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// v2 := table[val0&mask]
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MOVHU (R8)(R12<<1), R1
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// br1.advance(uint8(v2.entry)
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UBFX $8, R1, $8, R16
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BFI $8, R16, $8, R0
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LSL R1, R10, R10
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ADD R1, R11, R15
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BFI $0, R15, $8, R11
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// val3 := br1.peekTopBits(peekBits)
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MOVD R10, R12
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MOVD R6, R1
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LSR R1, R12, R12
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// v3 := table[val0&mask]
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MOVHU (R8)(R12<<1), R1
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// br1.advance(uint8(v3.entry)
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UBFX $8, R1, $8, R16
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BFI $0, R16, $8, R0
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LSL R1, R10, R10
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ADD R1, R11, R15
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BFI $0, R15, $8, R11
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REVW R0, R0
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// these four writes get coalesced
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// out[id * dstEvery + 0] = uint8(v0.entry >> 8)
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// out[id * dstEvery + 1] = uint8(v1.entry >> 8)
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// out[id * dstEvery + 3] = uint8(v2.entry >> 8)
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// out[id * dstEvery + 4] = uint8(v3.entry >> 8)
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MOVW R0, (R3)(R7)
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// update the bitreader structure
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MOVD R10, 80(R9)
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MOVB R11, 88(R9)
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// br2.fillFast32()
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MOVD 128(R9), R10
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|
MOVBU 136(R9), R11
|
|
CMP $0x20, R11
|
|
BLS skip_fill2
|
|
MOVD 120(R9), R0
|
|
SUB $0x20, R11, R11
|
|
SUB $0x04, R0, R0
|
|
MOVD 96(R9), R12
|
|
|
|
// b.value |= uint64(low) << (b.bitsRead & 63)
|
|
MOVWU (R0)(R12), R12
|
|
MOVD R11, R1
|
|
LSL R1, R12, R12
|
|
MOVD R0, 120(R9)
|
|
ORR R12, R10, R10
|
|
|
|
// exhausted += (br2.off < 4)
|
|
CMP $0x04, R0
|
|
CSINC HS, R2, R2, R16
|
|
BFI $0, R16, $8, R2
|
|
|
|
skip_fill2:
|
|
// val0 := br2.peekTopBits(peekBits)
|
|
MOVD R10, R0
|
|
MOVD R6, R1
|
|
LSR R1, R0, R0
|
|
|
|
// v0 := table[val0&mask]
|
|
MOVHU (R8)(R0<<1), R1
|
|
|
|
// br2.advance(uint8(v0.entry)
|
|
UBFX $8, R1, $8, R0
|
|
LSL R1, R10, R10
|
|
ADD R1, R11, R15
|
|
BFI $0, R15, $8, R11
|
|
|
|
// val1 := br2.peekTopBits(peekBits)
|
|
MOVD R10, R12
|
|
MOVD R6, R1
|
|
LSR R1, R12, R12
|
|
|
|
// v1 := table[val0&mask]
|
|
MOVHU (R8)(R12<<1), R1
|
|
|
|
// br2.advance(uint8(v1.entry)
|
|
UBFX $8, R1, $8, R16
|
|
BFI $8, R16, $8, R0
|
|
LSL R1, R10, R10
|
|
ADD R1, R11, R15
|
|
BFI $0, R15, $8, R11
|
|
REVW R0, R0
|
|
|
|
// val2 := br2.peekTopBits(peekBits)
|
|
MOVD R10, R12
|
|
MOVD R6, R1
|
|
LSR R1, R12, R12
|
|
|
|
// v2 := table[val0&mask]
|
|
MOVHU (R8)(R12<<1), R1
|
|
|
|
// br2.advance(uint8(v2.entry)
|
|
UBFX $8, R1, $8, R16
|
|
BFI $8, R16, $8, R0
|
|
LSL R1, R10, R10
|
|
ADD R1, R11, R15
|
|
BFI $0, R15, $8, R11
|
|
|
|
// val3 := br2.peekTopBits(peekBits)
|
|
MOVD R10, R12
|
|
MOVD R6, R1
|
|
LSR R1, R12, R12
|
|
|
|
// v3 := table[val0&mask]
|
|
MOVHU (R8)(R12<<1), R1
|
|
|
|
// br2.advance(uint8(v3.entry)
|
|
UBFX $8, R1, $8, R16
|
|
BFI $0, R16, $8, R0
|
|
LSL R1, R10, R10
|
|
ADD R1, R11, R15
|
|
BFI $0, R15, $8, R11
|
|
REVW R0, R0
|
|
|
|
// these four writes get coalesced
|
|
// out[id * dstEvery + 0] = uint8(v0.entry >> 8)
|
|
// out[id * dstEvery + 1] = uint8(v1.entry >> 8)
|
|
// out[id * dstEvery + 3] = uint8(v2.entry >> 8)
|
|
// out[id * dstEvery + 4] = uint8(v3.entry >> 8)
|
|
ADD R7<<1, R3, R15
|
|
MOVW R0, (R15)
|
|
|
|
// update the bitreader structure
|
|
MOVD R10, 128(R9)
|
|
MOVB R11, 136(R9)
|
|
|
|
// br3.fillFast32()
|
|
MOVD 176(R9), R10
|
|
MOVBU 184(R9), R11
|
|
CMP $0x20, R11
|
|
BLS skip_fill3
|
|
MOVD 168(R9), R0
|
|
SUB $0x20, R11, R11
|
|
SUB $0x04, R0, R0
|
|
MOVD 144(R9), R12
|
|
|
|
// b.value |= uint64(low) << (b.bitsRead & 63)
|
|
MOVWU (R0)(R12), R12
|
|
MOVD R11, R1
|
|
LSL R1, R12, R12
|
|
MOVD R0, 168(R9)
|
|
ORR R12, R10, R10
|
|
|
|
// exhausted += (br3.off < 4)
|
|
CMP $0x04, R0
|
|
CSINC HS, R2, R2, R16
|
|
BFI $0, R16, $8, R2
|
|
|
|
skip_fill3:
|
|
// val0 := br3.peekTopBits(peekBits)
|
|
MOVD R10, R0
|
|
MOVD R6, R1
|
|
LSR R1, R0, R0
|
|
|
|
// v0 := table[val0&mask]
|
|
MOVHU (R8)(R0<<1), R1
|
|
|
|
// br3.advance(uint8(v0.entry)
|
|
UBFX $8, R1, $8, R0
|
|
LSL R1, R10, R10
|
|
ADD R1, R11, R15
|
|
BFI $0, R15, $8, R11
|
|
|
|
// val1 := br3.peekTopBits(peekBits)
|
|
MOVD R10, R12
|
|
MOVD R6, R1
|
|
LSR R1, R12, R12
|
|
|
|
// v1 := table[val0&mask]
|
|
MOVHU (R8)(R12<<1), R1
|
|
|
|
// br3.advance(uint8(v1.entry)
|
|
UBFX $8, R1, $8, R16
|
|
BFI $8, R16, $8, R0
|
|
LSL R1, R10, R10
|
|
ADD R1, R11, R15
|
|
BFI $0, R15, $8, R11
|
|
REVW R0, R0
|
|
|
|
// val2 := br3.peekTopBits(peekBits)
|
|
MOVD R10, R12
|
|
MOVD R6, R1
|
|
LSR R1, R12, R12
|
|
|
|
// v2 := table[val0&mask]
|
|
MOVHU (R8)(R12<<1), R1
|
|
|
|
// br3.advance(uint8(v2.entry)
|
|
UBFX $8, R1, $8, R16
|
|
BFI $8, R16, $8, R0
|
|
LSL R1, R10, R10
|
|
ADD R1, R11, R15
|
|
BFI $0, R15, $8, R11
|
|
|
|
// val3 := br3.peekTopBits(peekBits)
|
|
MOVD R10, R12
|
|
MOVD R6, R1
|
|
LSR R1, R12, R12
|
|
|
|
// v3 := table[val0&mask]
|
|
MOVHU (R8)(R12<<1), R1
|
|
|
|
// br3.advance(uint8(v3.entry)
|
|
UBFX $8, R1, $8, R16
|
|
BFI $0, R16, $8, R0
|
|
LSL R1, R10, R10
|
|
ADD R1, R11, R15
|
|
BFI $0, R15, $8, R11
|
|
REVW R0, R0
|
|
|
|
// these four writes get coalesced
|
|
// out[id * dstEvery + 0] = uint8(v0.entry >> 8)
|
|
// out[id * dstEvery + 1] = uint8(v1.entry >> 8)
|
|
// out[id * dstEvery + 3] = uint8(v2.entry >> 8)
|
|
// out[id * dstEvery + 4] = uint8(v3.entry >> 8)
|
|
ADD R7<<1, R7, R1
|
|
MOVW R0, (R3)(R1)
|
|
|
|
// update the bitreader structure
|
|
MOVD R10, 176(R9)
|
|
MOVB R11, 184(R9)
|
|
ADD $0x04, R3, R3
|
|
TST $0xff, R2
|
|
BEQ main_loop
|
|
MOVD ctx+0(FP), R0
|
|
MOVD 16(R0), R16
|
|
SUB R16, R3, R3
|
|
LSL $0x02, R3, R3
|
|
MOVD R3, 40(R0)
|
|
RET
|
|
|
|
// func decompress1x_main_loop_amd64(ctx *decompress1xContext)
|
|
TEXT ·decompress1x_main_loop_arm64(SB), $0-8
|
|
MOVD ctx+0(FP), R1
|
|
MOVD 16(R1), R2
|
|
MOVD 24(R1), R3
|
|
CMP $0x04, R3
|
|
BLO error_max_decoded_size_exceeded
|
|
ADD R3, R2, R3
|
|
MOVD (R1), R5
|
|
MOVD (R5), R7
|
|
MOVD 24(R5), R8
|
|
MOVD 32(R5), R9
|
|
MOVBU 40(R5), R10
|
|
MOVD 32(R1), R5
|
|
MOVBU 8(R1), R6
|
|
JMP loop_condition
|
|
|
|
main_loop:
|
|
// Check if we have room for 4 bytes in the output buffer
|
|
ADD $4, R2, R1
|
|
CMP R3, R1
|
|
BGE error_max_decoded_size_exceeded
|
|
|
|
// Decode 4 values
|
|
CMP $0x20, R10
|
|
BLT bitReader_fillFast_1_end
|
|
SUB $0x20, R10, R10
|
|
SUB $0x04, R8, R8
|
|
MOVWU (R7)(R8), R11
|
|
MOVD R10, R1
|
|
LSL R1, R11, R11
|
|
ORR R11, R9, R9
|
|
|
|
bitReader_fillFast_1_end:
|
|
MOVD R6, R1
|
|
MOVD R9, R11
|
|
LSR R1, R11, R11
|
|
MOVHU (R5)(R11<<1), R1
|
|
UBFX $8, R1, $8, R16
|
|
BFI $0, R16, $8, R0
|
|
MOVBU R1, R1
|
|
ADD R1, R10, R10
|
|
LSL R1, R9, R9
|
|
MOVD R6, R1
|
|
MOVD R9, R11
|
|
LSR R1, R11, R11
|
|
MOVHU (R5)(R11<<1), R1
|
|
UBFX $8, R1, $8, R16
|
|
BFI $8, R16, $8, R0
|
|
MOVBU R1, R1
|
|
ADD R1, R10, R10
|
|
LSL R1, R9, R9
|
|
REVW R0, R0
|
|
CMP $0x20, R10
|
|
BLT bitReader_fillFast_2_end
|
|
SUB $0x20, R10, R10
|
|
SUB $0x04, R8, R8
|
|
MOVWU (R7)(R8), R11
|
|
MOVD R10, R1
|
|
LSL R1, R11, R11
|
|
ORR R11, R9, R9
|
|
|
|
bitReader_fillFast_2_end:
|
|
MOVD R6, R1
|
|
MOVD R9, R11
|
|
LSR R1, R11, R11
|
|
MOVHU (R5)(R11<<1), R1
|
|
UBFX $8, R1, $8, R16
|
|
BFI $8, R16, $8, R0
|
|
MOVBU R1, R1
|
|
ADD R1, R10, R10
|
|
LSL R1, R9, R9
|
|
MOVD R6, R1
|
|
MOVD R9, R11
|
|
LSR R1, R11, R11
|
|
MOVHU (R5)(R11<<1), R1
|
|
UBFX $8, R1, $8, R16
|
|
BFI $0, R16, $8, R0
|
|
MOVBU R1, R1
|
|
ADD R1, R10, R10
|
|
LSL R1, R9, R9
|
|
REVW R0, R0
|
|
|
|
// Store the decoded values
|
|
MOVW R0, (R2)
|
|
ADD $0x04, R2, R2
|
|
|
|
loop_condition:
|
|
CMP $0x08, R8
|
|
BGE main_loop
|
|
|
|
// Update ctx structure
|
|
MOVD ctx+0(FP), R0
|
|
MOVD 16(R0), R16
|
|
SUB R16, R2, R2
|
|
MOVD R2, 40(R0)
|
|
MOVD (R0), R0
|
|
MOVD R8, 24(R0)
|
|
MOVD R9, 32(R0)
|
|
MOVB R10, 40(R0)
|
|
RET
|
|
|
|
// Report error
|
|
error_max_decoded_size_exceeded:
|
|
MOVD ctx+0(FP), R0
|
|
MOVD $-1, R1
|
|
MOVD R1, 40(R0)
|
|
RET
|
|
|
|
// skipped decompress1x_main_loop_bmi2 (generic twin preferred on arm64)
|