summaryrefslogtreecommitdiffstats
path: root/src/crypto/md5/md5block_ppc64x.s
diff options
context:
space:
mode:
Diffstat (limited to 'src/crypto/md5/md5block_ppc64x.s')
-rw-r--r--src/crypto/md5/md5block_ppc64x.s212
1 files changed, 212 insertions, 0 deletions
diff --git a/src/crypto/md5/md5block_ppc64x.s b/src/crypto/md5/md5block_ppc64x.s
new file mode 100644
index 0000000..69a20e7
--- /dev/null
+++ b/src/crypto/md5/md5block_ppc64x.s
@@ -0,0 +1,212 @@
+// Original source:
+// http://www.zorinaq.com/papers/md5-amd64.html
+// http://www.zorinaq.com/papers/md5-amd64.tar.bz2
+//
+// MD5 optimized for ppc64le using Go's assembler for
+// ppc64le, based on md5block_amd64.s implementation by
+// the Go authors.
+//
+// Author: Marc Bevand <bevand_m (at) epita.fr>
+// Licence: I hereby disclaim the copyright on this code and place it
+// in the public domain.
+
+//go:build ppc64 || ppc64le
+
+#include "textflag.h"
+
+// ENDIAN_MOVE generates the appropriate
+// 4 byte load for big or little endian.
+// The 4 bytes at ptr+off is loaded into dst.
+// The idx reg is only needed for big endian
+// and is clobbered when used.
+#ifdef GOARCH_ppc64le
+#define ENDIAN_MOVE(off, ptr, dst, idx) \
+ MOVWZ off(ptr),dst
+#else
+#define ENDIAN_MOVE(off, ptr, dst, idx) \
+ MOVD $off,idx; \
+ MOVWBR (idx)(ptr), dst
+#endif
+
+#define M00 R18
+#define M01 R19
+#define M02 R20
+#define M03 R24
+#define M04 R25
+#define M05 R26
+#define M06 R27
+#define M07 R28
+#define M08 R29
+#define M09 R21
+#define M10 R11
+#define M11 R8
+#define M12 R7
+#define M13 R12
+#define M14 R23
+#define M15 R10
+
+#define ROUND1(a, b, c, d, index, const, shift) \
+ ADD $const, index, R9; \
+ ADD R9, a; \
+ AND b, c, R9; \
+ ANDN b, d, R31; \
+ OR R9, R31, R9; \
+ ADD R9, a; \
+ ROTLW $shift, a; \
+ ADD b, a;
+
+#define ROUND2(a, b, c, d, index, const, shift) \
+ ADD $const, index, R9; \
+ ADD R9, a; \
+ AND b, d, R31; \
+ ANDN d, c, R9; \
+ OR R9, R31; \
+ ADD R31, a; \
+ ROTLW $shift, a; \
+ ADD b, a;
+
+#define ROUND3(a, b, c, d, index, const, shift) \
+ ADD $const, index, R9; \
+ ADD R9, a; \
+ XOR d, c, R31; \
+ XOR b, R31; \
+ ADD R31, a; \
+ ROTLW $shift, a; \
+ ADD b, a;
+
+#define ROUND4(a, b, c, d, index, const, shift) \
+ ADD $const, index, R9; \
+ ADD R9, a; \
+ ORN d, b, R31; \
+ XOR c, R31; \
+ ADD R31, a; \
+ ROTLW $shift, a; \
+ ADD b, a;
+
+
+TEXT ·block(SB),NOSPLIT,$0-32
+ MOVD dig+0(FP), R10
+ MOVD p+8(FP), R6
+ MOVD p_len+16(FP), R5
+
+ // We assume p_len >= 64
+ SRD $6, R5
+ MOVD R5, CTR
+
+ MOVWZ 0(R10), R22
+ MOVWZ 4(R10), R3
+ MOVWZ 8(R10), R4
+ MOVWZ 12(R10), R5
+
+loop:
+ MOVD R22, R14
+ MOVD R3, R15
+ MOVD R4, R16
+ MOVD R5, R17
+
+ ENDIAN_MOVE( 0,R6,M00,M15)
+ ENDIAN_MOVE( 4,R6,M01,M15)
+ ENDIAN_MOVE( 8,R6,M02,M15)
+ ENDIAN_MOVE(12,R6,M03,M15)
+
+ ROUND1(R22,R3,R4,R5,M00,0xd76aa478, 7);
+ ROUND1(R5,R22,R3,R4,M01,0xe8c7b756,12);
+ ROUND1(R4,R5,R22,R3,M02,0x242070db,17);
+ ROUND1(R3,R4,R5,R22,M03,0xc1bdceee,22);
+
+ ENDIAN_MOVE(16,R6,M04,M15)
+ ENDIAN_MOVE(20,R6,M05,M15)
+ ENDIAN_MOVE(24,R6,M06,M15)
+ ENDIAN_MOVE(28,R6,M07,M15)
+
+ ROUND1(R22,R3,R4,R5,M04,0xf57c0faf, 7);
+ ROUND1(R5,R22,R3,R4,M05,0x4787c62a,12);
+ ROUND1(R4,R5,R22,R3,M06,0xa8304613,17);
+ ROUND1(R3,R4,R5,R22,M07,0xfd469501,22);
+
+ ENDIAN_MOVE(32,R6,M08,M15)
+ ENDIAN_MOVE(36,R6,M09,M15)
+ ENDIAN_MOVE(40,R6,M10,M15)
+ ENDIAN_MOVE(44,R6,M11,M15)
+
+ ROUND1(R22,R3,R4,R5,M08,0x698098d8, 7);
+ ROUND1(R5,R22,R3,R4,M09,0x8b44f7af,12);
+ ROUND1(R4,R5,R22,R3,M10,0xffff5bb1,17);
+ ROUND1(R3,R4,R5,R22,M11,0x895cd7be,22);
+
+ ENDIAN_MOVE(48,R6,M12,M15)
+ ENDIAN_MOVE(52,R6,M13,M15)
+ ENDIAN_MOVE(56,R6,M14,M15)
+ ENDIAN_MOVE(60,R6,M15,M15)
+
+ ROUND1(R22,R3,R4,R5,M12,0x6b901122, 7);
+ ROUND1(R5,R22,R3,R4,M13,0xfd987193,12);
+ ROUND1(R4,R5,R22,R3,M14,0xa679438e,17);
+ ROUND1(R3,R4,R5,R22,M15,0x49b40821,22);
+
+ ROUND2(R22,R3,R4,R5,M01,0xf61e2562, 5);
+ ROUND2(R5,R22,R3,R4,M06,0xc040b340, 9);
+ ROUND2(R4,R5,R22,R3,M11,0x265e5a51,14);
+ ROUND2(R3,R4,R5,R22,M00,0xe9b6c7aa,20);
+ ROUND2(R22,R3,R4,R5,M05,0xd62f105d, 5);
+ ROUND2(R5,R22,R3,R4,M10, 0x2441453, 9);
+ ROUND2(R4,R5,R22,R3,M15,0xd8a1e681,14);
+ ROUND2(R3,R4,R5,R22,M04,0xe7d3fbc8,20);
+ ROUND2(R22,R3,R4,R5,M09,0x21e1cde6, 5);
+ ROUND2(R5,R22,R3,R4,M14,0xc33707d6, 9);
+ ROUND2(R4,R5,R22,R3,M03,0xf4d50d87,14);
+ ROUND2(R3,R4,R5,R22,M08,0x455a14ed,20);
+ ROUND2(R22,R3,R4,R5,M13,0xa9e3e905, 5);
+ ROUND2(R5,R22,R3,R4,M02,0xfcefa3f8, 9);
+ ROUND2(R4,R5,R22,R3,M07,0x676f02d9,14);
+ ROUND2(R3,R4,R5,R22,M12,0x8d2a4c8a,20);
+
+ ROUND3(R22,R3,R4,R5,M05,0xfffa3942, 4);
+ ROUND3(R5,R22,R3,R4,M08,0x8771f681,11);
+ ROUND3(R4,R5,R22,R3,M11,0x6d9d6122,16);
+ ROUND3(R3,R4,R5,R22,M14,0xfde5380c,23);
+ ROUND3(R22,R3,R4,R5,M01,0xa4beea44, 4);
+ ROUND3(R5,R22,R3,R4,M04,0x4bdecfa9,11);
+ ROUND3(R4,R5,R22,R3,M07,0xf6bb4b60,16);
+ ROUND3(R3,R4,R5,R22,M10,0xbebfbc70,23);
+ ROUND3(R22,R3,R4,R5,M13,0x289b7ec6, 4);
+ ROUND3(R5,R22,R3,R4,M00,0xeaa127fa,11);
+ ROUND3(R4,R5,R22,R3,M03,0xd4ef3085,16);
+ ROUND3(R3,R4,R5,R22,M06, 0x4881d05,23);
+ ROUND3(R22,R3,R4,R5,M09,0xd9d4d039, 4);
+ ROUND3(R5,R22,R3,R4,M12,0xe6db99e5,11);
+ ROUND3(R4,R5,R22,R3,M15,0x1fa27cf8,16);
+ ROUND3(R3,R4,R5,R22,M02,0xc4ac5665,23);
+
+ ROUND4(R22,R3,R4,R5,M00,0xf4292244, 6);
+ ROUND4(R5,R22,R3,R4,M07,0x432aff97,10);
+ ROUND4(R4,R5,R22,R3,M14,0xab9423a7,15);
+ ROUND4(R3,R4,R5,R22,M05,0xfc93a039,21);
+ ROUND4(R22,R3,R4,R5,M12,0x655b59c3, 6);
+ ROUND4(R5,R22,R3,R4,M03,0x8f0ccc92,10);
+ ROUND4(R4,R5,R22,R3,M10,0xffeff47d,15);
+ ROUND4(R3,R4,R5,R22,M01,0x85845dd1,21);
+ ROUND4(R22,R3,R4,R5,M08,0x6fa87e4f, 6);
+ ROUND4(R5,R22,R3,R4,M15,0xfe2ce6e0,10);
+ ROUND4(R4,R5,R22,R3,M06,0xa3014314,15);
+ ROUND4(R3,R4,R5,R22,M13,0x4e0811a1,21);
+ ROUND4(R22,R3,R4,R5,M04,0xf7537e82, 6);
+ ROUND4(R5,R22,R3,R4,M11,0xbd3af235,10);
+ ROUND4(R4,R5,R22,R3,M02,0x2ad7d2bb,15);
+ ROUND4(R3,R4,R5,R22,M09,0xeb86d391,21);
+
+ ADD R14, R22
+ ADD R15, R3
+ ADD R16, R4
+ ADD R17, R5
+ ADD $64, R6
+ BC 16, 0, loop // bdnz
+
+end:
+ MOVD dig+0(FP), R10
+ MOVWZ R22, 0(R10)
+ MOVWZ R3, 4(R10)
+ MOVWZ R4, 8(R10)
+ MOVWZ R5, 12(R10)
+
+ RET