diff options
Diffstat (limited to 'src/math/big/arith_s390x.s')
| -rw-r--r-- | src/math/big/arith_s390x.s | 192 |
1 files changed, 2 insertions, 190 deletions
diff --git a/src/math/big/arith_s390x.s b/src/math/big/arith_s390x.s index 4891768111..153c42679c 100644 --- a/src/math/big/arith_s390x.s +++ b/src/math/big/arith_s390x.s @@ -702,199 +702,11 @@ returnC: // func shlVU(z, x []Word, s uint) (c Word) TEXT ·shlVU(SB), NOSPLIT, $0 - MOVD z_len+8(FP), R5 - MOVD $0, R0 - SUB $1, R5 // n-- - BLT X8b // n < 0 (n <= 0) - - // n > 0 - MOVD s+48(FP), R4 - CMPBEQ R0, R4, Z80 // handle 0 case beq - MOVD $64, R6 - CMPBEQ R6, R4, Z864 // handle 64 case beq - MOVD z+0(FP), R2 - MOVD x+24(FP), R8 - SLD $3, R5 // n = n*8 - SUB R4, R6, R7 - MOVD (R8)(R5*1), R10 // w1 = x[i-1] - SRD R7, R10, R3 - MOVD R3, c+56(FP) - - MOVD $0, R1 // i = 0 - BR E8 - - // i < n-1 -L8: - MOVD R10, R3 // w = w1 - MOVD -8(R8)(R5*1), R10 // w1 = x[i+1] - - SLD R4, R3 // w<<s | w1>>ŝ - SRD R7, R10, R6 - OR R6, R3 - MOVD R3, (R2)(R5*1) // z[i] = w<<s | w1>>ŝ - SUB $8, R5 // i-- - -E8: - CMPBGT R5, R0, L8 // i < n-1 - - // i >= n-1 -X8a: - SLD R4, R10 // w1<<s - MOVD R10, (R2) // z[0] = w1<<s - RET - -X8b: - MOVD R0, c+56(FP) - RET - -Z80: - MOVD z+0(FP), R2 - MOVD x+24(FP), R8 - SLD $3, R5 // n = n*8 - - MOVD (R8), R10 - MOVD $0, R3 - MOVD R3, c+56(FP) - - MOVD $0, R1 // i = 0 - BR E8Z - - // i < n-1 -L8Z: - MOVD R10, R3 - MOVD 8(R8)(R1*1), R10 - - MOVD R3, (R2)(R1*1) - ADD $8, R1 - -E8Z: - CMPBLT R1, R5, L8Z - - // i >= n-1 - MOVD R10, (R2)(R5*1) - RET - -Z864: - MOVD z+0(FP), R2 - MOVD x+24(FP), R8 - SLD $3, R5 // n = n*8 - MOVD (R8)(R5*1), R3 // w1 = x[n-1] - MOVD R3, c+56(FP) // z[i] = x[n-1] - - BR E864 - - // i < n-1 -L864: - MOVD -8(R8)(R5*1), R3 - - MOVD R3, (R2)(R5*1) // z[i] = x[n-1] - SUB $8, R5 // i-- - -E864: - CMPBGT R5, R0, L864 // i < n-1 - - MOVD R0, (R2) // z[n-1] = 0 - RET + BR ·shlVU_g(SB) -// CX = R4, r8 = r8, r10 = r2 , r11 = r5, DX = r3, AX = r10 , BX = R1 , 64-count = r7 (R0 set to 0) temp = R6 // func shrVU(z, x []Word, s uint) (c Word) TEXT ·shrVU(SB), NOSPLIT, $0 - MOVD z_len+8(FP), R5 - MOVD $0, R0 - SUB $1, R5 // n-- - BLT X9b // n < 0 (n <= 0) - - // n > 0 - MOVD s+48(FP), R4 - CMPBEQ R0, R4, ZB0 // handle 0 case beq - MOVD $64, R6 - CMPBEQ R6, R4, ZB64 // handle 64 case beq - MOVD z+0(FP), R2 - MOVD x+24(FP), R8 - SLD $3, R5 // n = n*8 - SUB R4, R6, R7 - MOVD (R8), R10 // w1 = x[0] - SLD R7, R10, R3 - MOVD R3, c+56(FP) - - MOVD $0, R1 // i = 0 - BR E9 - - // i < n-1 -L9: - MOVD R10, R3 // w = w1 - MOVD 8(R8)(R1*1), R10 // w1 = x[i+1] - - SRD R4, R3 // w>>s | w1<<s - SLD R7, R10, R6 - OR R6, R3 - MOVD R3, (R2)(R1*1) // z[i] = w>>s | w1<<s - ADD $8, R1 // i++ - -E9: - CMPBLT R1, R5, L9 // i < n-1 - - // i >= n-1 -X9a: - SRD R4, R10 // w1>>s - MOVD R10, (R2)(R5*1) // z[n-1] = w1>>s - RET - -X9b: - MOVD R0, c+56(FP) - RET - -ZB0: - MOVD z+0(FP), R2 - MOVD x+24(FP), R8 - SLD $3, R5 // n = n*8 - - MOVD (R8), R10 // w1 = x[0] - MOVD $0, R3 // R10 << 64 - MOVD R3, c+56(FP) - - MOVD $0, R1 // i = 0 - BR E9Z - - // i < n-1 -L9Z: - MOVD R10, R3 // w = w1 - MOVD 8(R8)(R1*1), R10 // w1 = x[i+1] - - MOVD R3, (R2)(R1*1) // z[i] = w>>s | w1<<s - ADD $8, R1 // i++ - -E9Z: - CMPBLT R1, R5, L9Z // i < n-1 - - // i >= n-1 - MOVD R10, (R2)(R5*1) // z[n-1] = w1>>s - RET - -ZB64: - MOVD z+0(FP), R2 - MOVD x+24(FP), R8 - SLD $3, R5 // n = n*8 - MOVD (R8), R3 // w1 = x[0] - MOVD R3, c+56(FP) - - MOVD $0, R1 // i = 0 - BR E964 - - // i < n-1 -L964: - MOVD 8(R8)(R1*1), R3 // w1 = x[i+1] - - MOVD R3, (R2)(R1*1) // z[i] = w>>s | w1<<s - ADD $8, R1 // i++ - -E964: - CMPBLT R1, R5, L964 // i < n-1 - - // i >= n-1 - MOVD $0, R10 // w1>>s - MOVD R10, (R2)(R5*1) // z[n-1] = w1>>s - RET + BR ·shrVU_g(SB) // CX = R4, r8 = r8, r9=r9, r10 = r2 , r11 = r5, DX = r3, AX = r6 , BX = R1 , (R0 set to 0) + use R11 + use R7 for i // func mulAddVWW(z, x []Word, y, r Word) (c Word) |