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zuc: amd64 eliminate the usage of R15

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Sun Yimin 2023-09-07 16:32:08 +08:00 committed by GitHub
parent 17e66c88d8
commit df14178097
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1 changed files with 30 additions and 34 deletions
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64
zuc/asm_amd64.s
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@ -211,12 +211,12 @@ GLOBL flip_mask<>(SB), RODATA, $16
VMOVDQU Comb_matrix_mul_high_nibble<>(SB), XIN_OUT \
MUL_PSHUFB_AVX(XTMP2, XTMP1, XIN_OUT, XTMP3)
#define F_R1 R10
#define F_R2 R11
#define BRC_X0 R12
#define BRC_X1 R13
#define BRC_X2 R14
#define BRC_X3 R15
#define F_R1 R9
#define F_R2 R10
#define BRC_X0 R11
#define BRC_X1 R12
#define BRC_X2 R13
#define BRC_X3 R14
// BITS_REORG(idx)
//
@ -225,7 +225,7 @@ GLOBL flip_mask<>(SB), RODATA, $16
// uses
// AX, BX, CX, DX
// return
// updates R12, R13, R14, R15
// updates R11, R12, R13, R14
//
#define BITS_REORG(idx) \
MOVL (((15 + idx) % 16)*4)(SI), BRC_X0 \
@ -251,25 +251,25 @@ GLOBL flip_mask<>(SB), RODATA, $16
// params
// %1 - round number
// uses
// AX as input (ZERO or W), BX, CX, DX, R8, R9
// AX as input (ZERO or W), BX, CX, DX, R8
#define LFSR_UPDT(idx) \
MOVL (((0 + idx) % 16)*4)(SI), BX \
MOVL (((4 + idx) % 16)*4)(SI), CX \
MOVL (((10 + idx) % 16)*4)(SI), DX \
MOVL (((13 + idx) % 16)*4)(SI), R8 \
MOVL (((15 + idx) % 16)*4)(SI), R9 \
\ // Calculate 64-bit LFSR feedback
ADDQ BX, AX \
SHLQ $8, BX \
SHLQ $20, CX \
SHLQ $21, DX \
SHLQ $17, R8 \
SHLQ $15, R9 \
ADDQ BX, AX \
ADDQ CX, AX \
ADDQ DX, AX \
ADDQ R8, AX \
ADDQ R9, AX \
MOVL (((15 + idx) % 16)*4)(SI), R8 \
SHLQ $15, R8 \
ADDQ R8, AX \
\ // Reduce it to 31-bit value
MOVQ AX, BX \
ANDQ $0x7FFFFFFF, AX \
@ -295,34 +295,30 @@ GLOBL flip_mask<>(SB), RODATA, $16
SHLDL(F_R2, F_R1, $16) \ // Q = (W2 << 16) | (W1 >> 16)
MOVL DX, BX \ // start L1
MOVL DX, CX \
MOVL DX, R8 \
MOVL DX, R9 \
ROLL $2, BX \
ROLL $10, CX \
ROLL $18, R8 \
ROLL $24, R9 \
XORL BX, DX \
ROLL $24, CX \
XORL CX, DX \
XORL R8, DX \
XORL R9, DX \ // U = L1(P) = EDX, hi(RDX)=0
XORL BX, DX \
ROLL $8, BX \
XORL BX, DX \
ROLL $8, BX \
XORL BX, DX \ // U = L1(P) = EDX, hi(RDX)=0
MOVL F_R2, BX \
MOVL F_R2, CX \
MOVL F_R2, R8 \
MOVL F_R2, R9 \
ROLL $8, BX \
ROLL $14, CX \
ROLL $22, R8 \
ROLL $30, R9 \
XORL BX, F_R2 \
ROLL $14, CX \
XORL CX, F_R2 \
XORL R8, F_R2 \
XORL R9, F_R2 \ // V = L2(Q) = R11D, hi(R11)=0
ROLL $8, CX \
XORL CX, F_R2 \
ROLL $8, CX \
XORL CX, F_R2 \ // V = L2(Q) = R11D, hi(R11)=0
SHLQ $32, F_R2 \ // DX = V || U
XORQ F_R2, DX
// Non-Linear function F, SSE version.
// uses
// AX, BX, CX, DX, R8, R9
// AX, BX, CX, DX, R8
// X0, X1, X2, X3, X4
// return
// W in AX
@ -397,7 +393,7 @@ GLOBL flip_mask<>(SB), RODATA, $16
// Non-Linear function F, AVX version.
// uses
// AX, BX, CX, DX, R8, R9
// AX, BX, CX, DX, R8
// X0, X1, X2, X3, X4
// return
// W in AX
@ -413,8 +409,8 @@ GLOBL flip_mask<>(SB), RODATA, $16
VPAND mask_S0<>(SB), X1, X1 \
VPXOR X1, X0, X0 \
\
MOVL X0, R10 \ // F_R1
VPEXTRD $1, X0, R11
MOVL X0, F_R1 \ // F_R1
VPEXTRD $1, X0, F_R2
#define LOAD_STATE \
MOVL OFFSET_FR1(SI), F_R1 \
@ -477,7 +473,7 @@ avx:
#define ROUND_SSE(idx) \
BITS_REORG(idx) \
NONLIN_FUN_SSE \
XORL R15, AX \
XORL BRC_X3, AX \
MOVL AX, (idx*4)(DI) \
XORQ AX, AX \
LFSR_UPDT(idx)
@ -485,7 +481,7 @@ avx:
#define ROUND_AVX(idx) \
BITS_REORG(idx) \
NONLIN_FUN_AVX \
XORL R15, AX \
XORL BRC_X3, AX \
MOVL AX, (idx*4)(DI) \
XORQ AX, AX \
LFSR_UPDT(idx)
@ -493,7 +489,7 @@ avx:
#define ROUND_REV32_SSE(idx) \
BITS_REORG(idx) \
NONLIN_FUN_SSE \
XORL R15, AX \
XORL BRC_X3, AX \
BSWAPL AX \
MOVL AX, (idx*4)(DI) \
XORQ AX, AX \
@ -502,7 +498,7 @@ avx:
#define ROUND_REV32_AVX(idx) \
BITS_REORG(idx) \
NONLIN_FUN_AVX \
XORL R15, AX \
XORL BRC_X3, AX \
BSWAPL AX \
MOVL AX, (idx*4)(DI) \
XORQ AX, AX \