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866 lines
16 KiB
866 lines
16 KiB
// Code generated by command: go run gen.go -out ../decompress_amd64.s -pkg=huff0. DO NOT EDIT.
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//go:build amd64 && !appengine && !noasm && gc
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// +build amd64,!appengine,!noasm,gc
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// func decompress4x_main_loop_amd64(ctx *decompress4xContext)
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TEXT ·decompress4x_main_loop_amd64(SB), $8-8
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XORQ DX, DX
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// Preload values
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MOVQ ctx+0(FP), AX
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MOVBQZX 32(AX), SI
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MOVQ 40(AX), DI
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MOVQ DI, BX
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MOVQ 72(AX), CX
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MOVQ CX, (SP)
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MOVQ 48(AX), R8
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MOVQ 56(AX), R9
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MOVQ (AX), R10
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MOVQ 8(AX), R11
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MOVQ 16(AX), R12
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MOVQ 24(AX), R13
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// Main loop
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main_loop:
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MOVQ BX, DI
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CMPQ DI, (SP)
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SETGE DL
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// br0.fillFast32()
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MOVQ 32(R10), R14
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MOVBQZX 40(R10), R15
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CMPQ R15, $0x20
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JBE skip_fill0
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MOVQ 24(R10), AX
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SUBQ $0x20, R15
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SUBQ $0x04, AX
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MOVQ (R10), BP
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// b.value |= uint64(low) << (b.bitsRead & 63)
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MOVL (AX)(BP*1), BP
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MOVQ R15, CX
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SHLQ CL, BP
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MOVQ AX, 24(R10)
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ORQ BP, R14
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// exhausted = exhausted || (br0.off < 4)
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CMPQ AX, $0x04
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SETLT AL
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ORB AL, DL
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skip_fill0:
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// val0 := br0.peekTopBits(peekBits)
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MOVQ R14, BP
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MOVQ SI, CX
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SHRQ CL, BP
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// v0 := table[val0&mask]
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MOVW (R9)(BP*2), CX
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// br0.advance(uint8(v0.entry)
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MOVB CH, AL
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SHLQ CL, R14
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ADDB CL, R15
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// val1 := br0.peekTopBits(peekBits)
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MOVQ SI, CX
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MOVQ R14, BP
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SHRQ CL, BP
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// v1 := table[val1&mask]
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MOVW (R9)(BP*2), CX
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// br0.advance(uint8(v1.entry))
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MOVB CH, AH
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SHLQ CL, R14
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ADDB CL, R15
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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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MOVW AX, (DI)
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// update the bitrader reader structure
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MOVQ R14, 32(R10)
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MOVB R15, 40(R10)
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ADDQ R8, DI
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// br1.fillFast32()
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MOVQ 32(R11), R14
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MOVBQZX 40(R11), R15
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CMPQ R15, $0x20
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JBE skip_fill1
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MOVQ 24(R11), AX
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SUBQ $0x20, R15
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SUBQ $0x04, AX
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MOVQ (R11), BP
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// b.value |= uint64(low) << (b.bitsRead & 63)
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MOVL (AX)(BP*1), BP
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MOVQ R15, CX
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SHLQ CL, BP
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MOVQ AX, 24(R11)
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ORQ BP, R14
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// exhausted = exhausted || (br1.off < 4)
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CMPQ AX, $0x04
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SETLT AL
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ORB AL, DL
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skip_fill1:
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// val0 := br1.peekTopBits(peekBits)
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MOVQ R14, BP
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MOVQ SI, CX
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SHRQ CL, BP
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// v0 := table[val0&mask]
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MOVW (R9)(BP*2), CX
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// br1.advance(uint8(v0.entry)
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MOVB CH, AL
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SHLQ CL, R14
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ADDB CL, R15
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// val1 := br1.peekTopBits(peekBits)
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MOVQ SI, CX
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MOVQ R14, BP
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SHRQ CL, BP
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// v1 := table[val1&mask]
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MOVW (R9)(BP*2), CX
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// br1.advance(uint8(v1.entry))
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MOVB CH, AH
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SHLQ CL, R14
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ADDB CL, R15
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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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MOVW AX, (DI)
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// update the bitrader reader structure
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MOVQ R14, 32(R11)
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MOVB R15, 40(R11)
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ADDQ R8, DI
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// br2.fillFast32()
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MOVQ 32(R12), R14
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MOVBQZX 40(R12), R15
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CMPQ R15, $0x20
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JBE skip_fill2
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MOVQ 24(R12), AX
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SUBQ $0x20, R15
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SUBQ $0x04, AX
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MOVQ (R12), BP
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// b.value |= uint64(low) << (b.bitsRead & 63)
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MOVL (AX)(BP*1), BP
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MOVQ R15, CX
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SHLQ CL, BP
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MOVQ AX, 24(R12)
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ORQ BP, R14
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// exhausted = exhausted || (br2.off < 4)
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CMPQ AX, $0x04
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SETLT AL
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ORB AL, DL
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skip_fill2:
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// val0 := br2.peekTopBits(peekBits)
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MOVQ R14, BP
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MOVQ SI, CX
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SHRQ CL, BP
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// v0 := table[val0&mask]
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MOVW (R9)(BP*2), CX
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// br2.advance(uint8(v0.entry)
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MOVB CH, AL
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SHLQ CL, R14
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ADDB CL, R15
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// val1 := br2.peekTopBits(peekBits)
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MOVQ SI, CX
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MOVQ R14, BP
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SHRQ CL, BP
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// v1 := table[val1&mask]
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MOVW (R9)(BP*2), CX
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// br2.advance(uint8(v1.entry))
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MOVB CH, AH
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SHLQ CL, R14
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ADDB CL, R15
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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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MOVW AX, (DI)
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// update the bitrader reader structure
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MOVQ R14, 32(R12)
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MOVB R15, 40(R12)
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ADDQ R8, DI
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// br3.fillFast32()
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MOVQ 32(R13), R14
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MOVBQZX 40(R13), R15
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CMPQ R15, $0x20
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JBE skip_fill3
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MOVQ 24(R13), AX
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SUBQ $0x20, R15
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SUBQ $0x04, AX
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MOVQ (R13), BP
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// b.value |= uint64(low) << (b.bitsRead & 63)
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MOVL (AX)(BP*1), BP
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MOVQ R15, CX
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SHLQ CL, BP
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MOVQ AX, 24(R13)
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ORQ BP, R14
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// exhausted = exhausted || (br3.off < 4)
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CMPQ AX, $0x04
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SETLT AL
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ORB AL, DL
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skip_fill3:
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// val0 := br3.peekTopBits(peekBits)
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MOVQ R14, BP
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MOVQ SI, CX
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SHRQ CL, BP
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// v0 := table[val0&mask]
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MOVW (R9)(BP*2), CX
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// br3.advance(uint8(v0.entry)
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MOVB CH, AL
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SHLQ CL, R14
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ADDB CL, R15
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// val1 := br3.peekTopBits(peekBits)
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MOVQ SI, CX
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MOVQ R14, BP
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SHRQ CL, BP
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// v1 := table[val1&mask]
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MOVW (R9)(BP*2), CX
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// br3.advance(uint8(v1.entry))
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MOVB CH, AH
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SHLQ CL, R14
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ADDB CL, R15
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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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MOVW AX, (DI)
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// update the bitrader reader structure
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MOVQ R14, 32(R13)
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MOVB R15, 40(R13)
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ADDQ $0x02, BX
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TESTB DL, DL
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JZ main_loop
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MOVQ ctx+0(FP), AX
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MOVQ 40(AX), CX
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MOVQ BX, DX
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SUBQ CX, DX
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SHLQ $0x02, DX
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MOVQ DX, 64(AX)
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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_amd64(SB), $16-8
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XORQ DX, DX
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// Preload values
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MOVQ ctx+0(FP), CX
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MOVBQZX 32(CX), BX
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MOVQ 40(CX), SI
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MOVQ SI, (SP)
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MOVQ 72(CX), DX
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MOVQ DX, 8(SP)
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MOVQ 48(CX), DI
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MOVQ 56(CX), R8
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MOVQ (CX), R9
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MOVQ 8(CX), R10
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MOVQ 16(CX), R11
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MOVQ 24(CX), R12
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// Main loop
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main_loop:
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MOVQ (SP), SI
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CMPQ SI, 8(SP)
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SETGE DL
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// br1000.fillFast32()
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MOVQ 32(R9), R13
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MOVBQZX 40(R9), R14
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CMPQ R14, $0x20
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JBE skip_fill1000
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MOVQ 24(R9), R15
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SUBQ $0x20, R14
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SUBQ $0x04, R15
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MOVQ (R9), BP
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// b.value |= uint64(low) << (b.bitsRead & 63)
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MOVL (R15)(BP*1), BP
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MOVQ R14, CX
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SHLQ CL, BP
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MOVQ R15, 24(R9)
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ORQ BP, R13
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// exhausted = exhausted || (br1000.off < 4)
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CMPQ R15, $0x04
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SETLT AL
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ORB AL, DL
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skip_fill1000:
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// val0 := br0.peekTopBits(peekBits)
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MOVQ R13, R15
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MOVQ BX, CX
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SHRQ CL, R15
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// v0 := table[val0&mask]
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MOVW (R8)(R15*2), CX
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// br0.advance(uint8(v0.entry)
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MOVB CH, AL
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SHLQ CL, R13
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ADDB CL, R14
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// val1 := br0.peekTopBits(peekBits)
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MOVQ R13, R15
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MOVQ BX, CX
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SHRQ CL, R15
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// v1 := table[val0&mask]
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MOVW (R8)(R15*2), CX
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// br0.advance(uint8(v1.entry)
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MOVB CH, AH
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SHLQ CL, R13
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ADDB CL, R14
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BSWAPL AX
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// val2 := br0.peekTopBits(peekBits)
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MOVQ R13, R15
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MOVQ BX, CX
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SHRQ CL, R15
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// v2 := table[val0&mask]
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MOVW (R8)(R15*2), CX
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// br0.advance(uint8(v2.entry)
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MOVB CH, AH
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SHLQ CL, R13
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ADDB CL, R14
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// val3 := br0.peekTopBits(peekBits)
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MOVQ R13, R15
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MOVQ BX, CX
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SHRQ CL, R15
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// v3 := table[val0&mask]
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MOVW (R8)(R15*2), CX
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// br0.advance(uint8(v3.entry)
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MOVB CH, AL
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SHLQ CL, R13
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ADDB CL, R14
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BSWAPL AX
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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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MOVL AX, (SI)
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// update the bitreader reader structure
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MOVQ R13, 32(R9)
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MOVB R14, 40(R9)
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ADDQ DI, SI
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// br1001.fillFast32()
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MOVQ 32(R10), R13
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MOVBQZX 40(R10), R14
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CMPQ R14, $0x20
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JBE skip_fill1001
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MOVQ 24(R10), R15
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SUBQ $0x20, R14
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SUBQ $0x04, R15
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MOVQ (R10), BP
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// b.value |= uint64(low) << (b.bitsRead & 63)
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MOVL (R15)(BP*1), BP
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MOVQ R14, CX
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SHLQ CL, BP
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MOVQ R15, 24(R10)
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ORQ BP, R13
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// exhausted = exhausted || (br1001.off < 4)
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CMPQ R15, $0x04
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SETLT AL
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ORB AL, DL
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skip_fill1001:
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// val0 := br1.peekTopBits(peekBits)
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MOVQ R13, R15
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MOVQ BX, CX
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SHRQ CL, R15
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// v0 := table[val0&mask]
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MOVW (R8)(R15*2), CX
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// br1.advance(uint8(v0.entry)
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MOVB CH, AL
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SHLQ CL, R13
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ADDB CL, R14
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// val1 := br1.peekTopBits(peekBits)
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MOVQ R13, R15
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MOVQ BX, CX
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SHRQ CL, R15
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// v1 := table[val0&mask]
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MOVW (R8)(R15*2), CX
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// br1.advance(uint8(v1.entry)
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MOVB CH, AH
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SHLQ CL, R13
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ADDB CL, R14
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BSWAPL AX
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// val2 := br1.peekTopBits(peekBits)
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MOVQ R13, R15
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MOVQ BX, CX
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SHRQ CL, R15
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// v2 := table[val0&mask]
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MOVW (R8)(R15*2), CX
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// br1.advance(uint8(v2.entry)
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MOVB CH, AH
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SHLQ CL, R13
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ADDB CL, R14
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// val3 := br1.peekTopBits(peekBits)
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MOVQ R13, R15
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MOVQ BX, CX
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SHRQ CL, R15
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// v3 := table[val0&mask]
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MOVW (R8)(R15*2), CX
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// br1.advance(uint8(v3.entry)
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MOVB CH, AL
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SHLQ CL, R13
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ADDB CL, R14
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BSWAPL AX
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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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MOVL AX, (SI)
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// update the bitreader reader structure
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MOVQ R13, 32(R10)
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MOVB R14, 40(R10)
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ADDQ DI, SI
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// br1002.fillFast32()
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MOVQ 32(R11), R13
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MOVBQZX 40(R11), R14
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CMPQ R14, $0x20
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JBE skip_fill1002
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MOVQ 24(R11), R15
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SUBQ $0x20, R14
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SUBQ $0x04, R15
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MOVQ (R11), BP
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// b.value |= uint64(low) << (b.bitsRead & 63)
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MOVL (R15)(BP*1), BP
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MOVQ R14, CX
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SHLQ CL, BP
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MOVQ R15, 24(R11)
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ORQ BP, R13
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// exhausted = exhausted || (br1002.off < 4)
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CMPQ R15, $0x04
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SETLT AL
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ORB AL, DL
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skip_fill1002:
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// val0 := br2.peekTopBits(peekBits)
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MOVQ R13, R15
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MOVQ BX, CX
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SHRQ CL, R15
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// v0 := table[val0&mask]
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MOVW (R8)(R15*2), CX
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// br2.advance(uint8(v0.entry)
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MOVB CH, AL
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SHLQ CL, R13
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ADDB CL, R14
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// val1 := br2.peekTopBits(peekBits)
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MOVQ R13, R15
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MOVQ BX, CX
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SHRQ CL, R15
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// v1 := table[val0&mask]
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MOVW (R8)(R15*2), CX
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// br2.advance(uint8(v1.entry)
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MOVB CH, AH
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SHLQ CL, R13
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ADDB CL, R14
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BSWAPL AX
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// val2 := br2.peekTopBits(peekBits)
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MOVQ R13, R15
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MOVQ BX, CX
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SHRQ CL, R15
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// v2 := table[val0&mask]
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MOVW (R8)(R15*2), CX
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// br2.advance(uint8(v2.entry)
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MOVB CH, AH
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SHLQ CL, R13
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ADDB CL, R14
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// val3 := br2.peekTopBits(peekBits)
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MOVQ R13, R15
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MOVQ BX, CX
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SHRQ CL, R15
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|
|
// v3 := table[val0&mask]
|
|
MOVW (R8)(R15*2), CX
|
|
|
|
// br2.advance(uint8(v3.entry)
|
|
MOVB CH, AL
|
|
SHLQ CL, R13
|
|
ADDB CL, R14
|
|
BSWAPL AX
|
|
|
|
// 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)
|
|
MOVL AX, (SI)
|
|
|
|
// update the bitreader reader structure
|
|
MOVQ R13, 32(R11)
|
|
MOVB R14, 40(R11)
|
|
ADDQ DI, SI
|
|
|
|
// br1003.fillFast32()
|
|
MOVQ 32(R12), R13
|
|
MOVBQZX 40(R12), R14
|
|
CMPQ R14, $0x20
|
|
JBE skip_fill1003
|
|
MOVQ 24(R12), R15
|
|
SUBQ $0x20, R14
|
|
SUBQ $0x04, R15
|
|
MOVQ (R12), BP
|
|
|
|
// b.value |= uint64(low) << (b.bitsRead & 63)
|
|
MOVL (R15)(BP*1), BP
|
|
MOVQ R14, CX
|
|
SHLQ CL, BP
|
|
MOVQ R15, 24(R12)
|
|
ORQ BP, R13
|
|
|
|
// exhausted = exhausted || (br1003.off < 4)
|
|
CMPQ R15, $0x04
|
|
SETLT AL
|
|
ORB AL, DL
|
|
|
|
skip_fill1003:
|
|
// val0 := br3.peekTopBits(peekBits)
|
|
MOVQ R13, R15
|
|
MOVQ BX, CX
|
|
SHRQ CL, R15
|
|
|
|
// v0 := table[val0&mask]
|
|
MOVW (R8)(R15*2), CX
|
|
|
|
// br3.advance(uint8(v0.entry)
|
|
MOVB CH, AL
|
|
SHLQ CL, R13
|
|
ADDB CL, R14
|
|
|
|
// val1 := br3.peekTopBits(peekBits)
|
|
MOVQ R13, R15
|
|
MOVQ BX, CX
|
|
SHRQ CL, R15
|
|
|
|
// v1 := table[val0&mask]
|
|
MOVW (R8)(R15*2), CX
|
|
|
|
// br3.advance(uint8(v1.entry)
|
|
MOVB CH, AH
|
|
SHLQ CL, R13
|
|
ADDB CL, R14
|
|
BSWAPL AX
|
|
|
|
// val2 := br3.peekTopBits(peekBits)
|
|
MOVQ R13, R15
|
|
MOVQ BX, CX
|
|
SHRQ CL, R15
|
|
|
|
// v2 := table[val0&mask]
|
|
MOVW (R8)(R15*2), CX
|
|
|
|
// br3.advance(uint8(v2.entry)
|
|
MOVB CH, AH
|
|
SHLQ CL, R13
|
|
ADDB CL, R14
|
|
|
|
// val3 := br3.peekTopBits(peekBits)
|
|
MOVQ R13, R15
|
|
MOVQ BX, CX
|
|
SHRQ CL, R15
|
|
|
|
// v3 := table[val0&mask]
|
|
MOVW (R8)(R15*2), CX
|
|
|
|
// br3.advance(uint8(v3.entry)
|
|
MOVB CH, AL
|
|
SHLQ CL, R13
|
|
ADDB CL, R14
|
|
BSWAPL AX
|
|
|
|
// 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)
|
|
MOVL AX, (SI)
|
|
|
|
// update the bitreader reader structure
|
|
MOVQ R13, 32(R12)
|
|
MOVB R14, 40(R12)
|
|
ADDQ $0x04, (SP)
|
|
TESTB DL, DL
|
|
JZ main_loop
|
|
MOVQ ctx+0(FP), AX
|
|
MOVQ 40(AX), CX
|
|
MOVQ (SP), DX
|
|
SUBQ CX, DX
|
|
SHLQ $0x02, DX
|
|
MOVQ DX, 64(AX)
|
|
RET
|
|
|
|
// func decompress1x_main_loop_amd64(ctx *decompress1xContext)
|
|
TEXT ·decompress1x_main_loop_amd64(SB), $0-8
|
|
MOVQ ctx+0(FP), CX
|
|
MOVQ 16(CX), DX
|
|
MOVQ 24(CX), BX
|
|
CMPQ BX, $0x04
|
|
JB error_max_decoded_size_exeeded
|
|
LEAQ (DX)(BX*1), BX
|
|
MOVQ (CX), SI
|
|
MOVQ (SI), R8
|
|
MOVQ 24(SI), R9
|
|
MOVQ 32(SI), R10
|
|
MOVBQZX 40(SI), R11
|
|
MOVQ 32(CX), SI
|
|
MOVBQZX 8(CX), DI
|
|
JMP loop_condition
|
|
|
|
main_loop:
|
|
// Check if we have room for 4 bytes in the output buffer
|
|
LEAQ 4(DX), CX
|
|
CMPQ CX, BX
|
|
JGE error_max_decoded_size_exeeded
|
|
|
|
// Decode 4 values
|
|
CMPQ R11, $0x20
|
|
JL bitReader_fillFast_1_end
|
|
SUBQ $0x20, R11
|
|
SUBQ $0x04, R9
|
|
MOVL (R8)(R9*1), R12
|
|
MOVQ R11, CX
|
|
SHLQ CL, R12
|
|
ORQ R12, R10
|
|
|
|
bitReader_fillFast_1_end:
|
|
MOVQ DI, CX
|
|
MOVQ R10, R12
|
|
SHRQ CL, R12
|
|
MOVW (SI)(R12*2), CX
|
|
MOVB CH, AL
|
|
MOVBQZX CL, CX
|
|
ADDQ CX, R11
|
|
SHLQ CL, R10
|
|
MOVQ DI, CX
|
|
MOVQ R10, R12
|
|
SHRQ CL, R12
|
|
MOVW (SI)(R12*2), CX
|
|
MOVB CH, AH
|
|
MOVBQZX CL, CX
|
|
ADDQ CX, R11
|
|
SHLQ CL, R10
|
|
BSWAPL AX
|
|
CMPQ R11, $0x20
|
|
JL bitReader_fillFast_2_end
|
|
SUBQ $0x20, R11
|
|
SUBQ $0x04, R9
|
|
MOVL (R8)(R9*1), R12
|
|
MOVQ R11, CX
|
|
SHLQ CL, R12
|
|
ORQ R12, R10
|
|
|
|
bitReader_fillFast_2_end:
|
|
MOVQ DI, CX
|
|
MOVQ R10, R12
|
|
SHRQ CL, R12
|
|
MOVW (SI)(R12*2), CX
|
|
MOVB CH, AH
|
|
MOVBQZX CL, CX
|
|
ADDQ CX, R11
|
|
SHLQ CL, R10
|
|
MOVQ DI, CX
|
|
MOVQ R10, R12
|
|
SHRQ CL, R12
|
|
MOVW (SI)(R12*2), CX
|
|
MOVB CH, AL
|
|
MOVBQZX CL, CX
|
|
ADDQ CX, R11
|
|
SHLQ CL, R10
|
|
BSWAPL AX
|
|
|
|
// Store the decoded values
|
|
MOVL AX, (DX)
|
|
ADDQ $0x04, DX
|
|
|
|
loop_condition:
|
|
CMPQ R9, $0x08
|
|
JGE main_loop
|
|
|
|
// Update ctx structure
|
|
MOVQ ctx+0(FP), AX
|
|
MOVQ DX, CX
|
|
MOVQ 16(AX), DX
|
|
SUBQ DX, CX
|
|
MOVQ CX, 40(AX)
|
|
MOVQ (AX), AX
|
|
MOVQ R9, 24(AX)
|
|
MOVQ R10, 32(AX)
|
|
MOVB R11, 40(AX)
|
|
RET
|
|
|
|
// Report error
|
|
error_max_decoded_size_exeeded:
|
|
MOVQ ctx+0(FP), AX
|
|
MOVQ $-1, CX
|
|
MOVQ CX, 40(AX)
|
|
RET
|
|
|
|
// func decompress1x_main_loop_bmi2(ctx *decompress1xContext)
|
|
// Requires: BMI2
|
|
TEXT ·decompress1x_main_loop_bmi2(SB), $0-8
|
|
MOVQ ctx+0(FP), CX
|
|
MOVQ 16(CX), DX
|
|
MOVQ 24(CX), BX
|
|
CMPQ BX, $0x04
|
|
JB error_max_decoded_size_exeeded
|
|
LEAQ (DX)(BX*1), BX
|
|
MOVQ (CX), SI
|
|
MOVQ (SI), R8
|
|
MOVQ 24(SI), R9
|
|
MOVQ 32(SI), R10
|
|
MOVBQZX 40(SI), R11
|
|
MOVQ 32(CX), SI
|
|
MOVBQZX 8(CX), DI
|
|
JMP loop_condition
|
|
|
|
main_loop:
|
|
// Check if we have room for 4 bytes in the output buffer
|
|
LEAQ 4(DX), CX
|
|
CMPQ CX, BX
|
|
JGE error_max_decoded_size_exeeded
|
|
|
|
// Decode 4 values
|
|
CMPQ R11, $0x20
|
|
JL bitReader_fillFast_1_end
|
|
SUBQ $0x20, R11
|
|
SUBQ $0x04, R9
|
|
MOVL (R8)(R9*1), CX
|
|
SHLXQ R11, CX, CX
|
|
ORQ CX, R10
|
|
|
|
bitReader_fillFast_1_end:
|
|
SHRXQ DI, R10, CX
|
|
MOVW (SI)(CX*2), CX
|
|
MOVB CH, AL
|
|
MOVBQZX CL, CX
|
|
ADDQ CX, R11
|
|
SHLXQ CX, R10, R10
|
|
SHRXQ DI, R10, CX
|
|
MOVW (SI)(CX*2), CX
|
|
MOVB CH, AH
|
|
MOVBQZX CL, CX
|
|
ADDQ CX, R11
|
|
SHLXQ CX, R10, R10
|
|
BSWAPL AX
|
|
CMPQ R11, $0x20
|
|
JL bitReader_fillFast_2_end
|
|
SUBQ $0x20, R11
|
|
SUBQ $0x04, R9
|
|
MOVL (R8)(R9*1), CX
|
|
SHLXQ R11, CX, CX
|
|
ORQ CX, R10
|
|
|
|
bitReader_fillFast_2_end:
|
|
SHRXQ DI, R10, CX
|
|
MOVW (SI)(CX*2), CX
|
|
MOVB CH, AH
|
|
MOVBQZX CL, CX
|
|
ADDQ CX, R11
|
|
SHLXQ CX, R10, R10
|
|
SHRXQ DI, R10, CX
|
|
MOVW (SI)(CX*2), CX
|
|
MOVB CH, AL
|
|
MOVBQZX CL, CX
|
|
ADDQ CX, R11
|
|
SHLXQ CX, R10, R10
|
|
BSWAPL AX
|
|
|
|
// Store the decoded values
|
|
MOVL AX, (DX)
|
|
ADDQ $0x04, DX
|
|
|
|
loop_condition:
|
|
CMPQ R9, $0x08
|
|
JGE main_loop
|
|
|
|
// Update ctx structure
|
|
MOVQ ctx+0(FP), AX
|
|
MOVQ DX, CX
|
|
MOVQ 16(AX), DX
|
|
SUBQ DX, CX
|
|
MOVQ CX, 40(AX)
|
|
MOVQ (AX), AX
|
|
MOVQ R9, 24(AX)
|
|
MOVQ R10, 32(AX)
|
|
MOVB R11, 40(AX)
|
|
RET
|
|
|
|
// Report error
|
|
error_max_decoded_size_exeeded:
|
|
MOVQ ctx+0(FP), AX
|
|
MOVQ $-1, CX
|
|
MOVQ CX, 40(AX)
|
|
RET
|