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openssl/crypto/md5/asm/md5-ia64.S

Index: openssl/crypto/md5/asm/md5-ia64.S
===================================================================
--- openssl/crypto/md5/asm/md5-ia64.S	(revision 0)
+++ openssl/crypto/md5/asm/md5-ia64.S	(revision 0)
@@ -0,0 +1,992 @@
+/* Copyright (c) 2005 Hewlett-Packard Development Company, L.P.
+
+Permission is hereby granted, free of charge, to any person obtaining
+a copy of this software and associated documentation files (the
+"Software"), to deal in the Software without restriction, including
+without limitation the rights to use, copy, modify, merge, publish,
+distribute, sublicense, and/or sell copies of the Software, and to
+permit persons to whom the Software is furnished to do so, subject to
+the following conditions:
+
+The above copyright notice and this permission notice shall be
+included in all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
+LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
+OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
+WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.  */
+
+//	Common registers are assigned as follows:
+//
+//	COMMON
+//
+//	t0		Const Tbl Ptr	TPtr
+//	t1		Round Constant	TRound
+//	t4		Block residual	LenResid
+//	t5		Residual Data	DTmp
+//
+//	{in,out}0	Block 0 Cycle	RotateM0
+//	{in,out}1	Block Value 12	M12
+//	{in,out}2	Block Value 8	M8
+//	{in,out}3	Block Value 4	M4
+//	{in,out}4	Block Value 0	M0
+//	{in,out}5	Block 1 Cycle	RotateM1
+//	{in,out}6	Block Value 13	M13
+//	{in,out}7	Block Value 9	M9
+//	{in,out}8	Block Value 5	M5
+//	{in,out}9	Block Value 1	M1
+//	{in,out}10	Block 2 Cycle	RotateM2
+//	{in,out}11	Block Value 14	M14
+//	{in,out}12	Block Value 10	M10
+//	{in,out}13	Block Value 6	M6
+//	{in,out}14	Block Value 2	M2
+//	{in,out}15	Block 3 Cycle	RotateM3
+//	{in,out}16	Block Value 15	M15
+//	{in,out}17	Block Value 11	M11
+//	{in,out}18	Block Value 7	M7
+//	{in,out}19	Block Value 3	M3
+//	{in,out}20	Scratch			Z
+//	{in,out}21	Scratch			Y
+//	{in,out}22	Scratch			X
+//	{in,out}23	Scratch			W
+//	{in,out}24	Digest A		A
+//	{in,out}25	Digest B		B
+//	{in,out}26	Digest C		C
+//	{in,out}27	Digest D		D
+//	{in,out}28	Active Data Ptr	DPtr
+//	in28		Dummy Value		-
+//	out28		Dummy Value		-
+//	bt0			Coroutine Link	QUICK_RTN
+//
+///	These predicates are used for computing the padding block(s) and
+///	are shared between the driver and digest co-routines
+//
+//	pt0			Extra Pad Block	pExtra
+//	pt1			Load next word	pLoad
+//	pt2			Skip next word	pSkip
+//	pt3			Search for Pad	pNoPad
+//	pt4			Pad Word 0		pPad0
+//	pt5			Pad Word 1		pPad1
+//	pt6			Pad Word 2		pPad2
+//	pt7			Pad Word 3		pPad3
+
+#define	DTmp		r19
+#define	LenResid	r18
+#define	QUICK_RTN	b6
+#define	TPtr		r14
+#define	TRound		r15
+#define	pExtra		p6
+#define	pLoad		p7
+#define	pNoPad		p9
+#define	pPad0		p10
+#define	pPad1		p11
+#define	pPad2		p12
+#define	pPad3		p13
+#define	pSkip		p8
+
+#define	A_		out24
+#define	B_		out25
+#define	C_		out26
+#define	D_		out27
+#define	DPtr_		out28
+#define	M0_		out4
+#define	M1_		out9
+#define	M10_		out12
+#define	M11_		out17
+#define	M12_		out1
+#define	M13_		out6
+#define	M14_		out11
+#define	M15_		out16
+#define	M2_		out14
+#define	M3_		out19
+#define	M4_		out3
+#define	M5_		out8
+#define	M6_		out13
+#define	M7_		out18
+#define	M8_		out2
+#define	M9_		out7
+#define	RotateM0_	out0
+#define	RotateM1_	out5
+#define	RotateM2_	out10
+#define	RotateM3_	out15
+#define	W_		out23
+#define	X_		out22
+#define	Y_		out21
+#define	Z_		out20
+
+#define	A		in24
+#define	B		in25
+#define	C		in26
+#define	D		in27
+#define	DPtr		in28
+#define	M0		in4
+#define	M1		in9
+#define	M10		in12
+#define	M11		in17
+#define	M12		in1
+#define	M13		in6
+#define	M14		in11
+#define	M15		in16
+#define	M2		in14
+#define	M3		in19
+#define	M4		in3
+#define	M5		in8
+#define	M6		in13
+#define	M7		in18
+#define	M8		in2
+#define	M9		in7
+#define	RotateM0	in0
+#define	RotateM1	in5
+#define	RotateM2	in10
+#define	RotateM3	in15
+#define	W		in23
+#define	X		in22
+#define	Y		in21
+#define	Z		in20
+
+/* register stack configuration for md5_block_asm_data_order(): */
+#define	MD5_NINP	3
+#define	MD5_NLOC	0
+#define MD5_NOUT	29
+#define MD5_NROT	0
+
+/* register stack configuration for helpers: */
+#define	_NINPUTS	MD5_NOUT
+#define	_NLOCALS	0
+#define _NOUTPUT	0
+#define	_NROTATE	24	/* this must be <= _NINPUTS */
+
+#if defined(_HPUX_SOURCE) && !defined(_LP64)
+#define	ADDP	addp4
+#else
+#define	ADDP	add
+#endif
+
+#if defined(_HPUX_SOURCE) || defined(B_ENDIAN)
+#define HOST_IS_BIG_ENDIAN
+#endif
+
+//	Macros for getting the left and right portions of little-endian words
+
+#define	GETLW(dst, src, align)	dep.z dst = src, 32 - 8 * align, 8 * align
+#define	GETRW(dst, src, align)	extr.u dst = src, 8 * align, 32 - 8 * align
+
+//	MD5 driver
+//
+//		Reads an input block, then calls the digest block
+//		subroutine and adds the results to the accumulated
+//		digest.  It allocates 32 outs which the subroutine
+//		uses as it's inputs and rotating
+//		registers. Initializes the round constant pointer and
+//		takes care of saving/restoring ar.lc
+//
+///	INPUT
+//
+//	in0		Context Ptr		CtxPtr0
+//	in1		Input Data Ptr		DPtrIn
+//	in2		Integral Blocks		BlockCount
+//	rp		Return Address		-
+//
+///	CODE
+//
+//	v2		Input Align		InAlign
+//	t0		Shared w/digest		-
+//	t1		Shared w/digest		-
+//	t2		Shared w/digest		-
+//	t3		Shared w/digest		-
+//	t4		Shared w/digest		-
+//	t5		Shared w/digest		-
+//	t6		PFS Save		PFSSave
+//	t7		ar.lc Save		LCSave
+//	t8		Saved PR		PRSave
+//	t9		2nd CtxPtr		CtxPtr1
+//	t10		Table Base		CTable
+//	t11		Table[0]		CTable0
+//	t13		Accumulator A		AccumA
+//	t14		Accumulator B		AccumB
+//	t15		Accumulator C		AccumC
+//	t16		Accumulator D		AccumD
+//	pt0		Shared w/digest		-
+//	pt1		Shared w/digest		-
+//	pt2		Shared w/digest		-
+//	pt3		Shared w/digest		-
+//	pt4		Shared w/digest		-
+//	pt5		Shared w/digest		-
+//	pt6		Shared w/digest		-
+//	pt7		Shared w/digest		-
+//	pt8		Not Aligned		pOff
+//	pt8		Blocks Left		pAgain
+
+#define	AccumA		r27
+#define	AccumB		r28
+#define	AccumC		r29
+#define	AccumD		r30
+#define	CTable		r24
+#define	CTable0		r25
+#define	CtxPtr0		in0
+#define	CtxPtr1		r23
+#define	DPtrIn		in1
+#define	BlockCount	in2
+#define	InAlign		r10
+#define	LCSave		r21
+#define	PFSSave		r20
+#define	PRSave		r22
+#define	pAgain		p63
+#define	pOff		p63
+
+	.text
+
+/* md5_block_asm_data_order(MD5_CTX *c, const void *data, size_t num)
+
+     where:
+      c: a pointer to a structure of this type:
+
+	   typedef struct MD5state_st
+	     {
+	       MD5_LONG A,B,C,D;
+	       MD5_LONG Nl,Nh;
+	       MD5_LONG data[MD5_LBLOCK];
+	       unsigned int num;
+	     }
+	   MD5_CTX;
+
+      data: a pointer to the input data (may be misaligned)
+      num:  the number of 16-byte blocks to hash (i.e., the length
+            of DATA is 16*NUM.
+
+   */
+
+	.type	md5_block_asm_data_order, @function
+	.global	md5_block_asm_data_order
+	.align	32
+	.proc	md5_block_asm_data_order
+md5_block_asm_data_order:
+.md5_block:
+	.prologue
+{	.mmi
+	.save	ar.pfs, PFSSave
+	alloc	PFSSave = ar.pfs, MD5_NINP, MD5_NLOC, MD5_NOUT, MD5_NROT
+	ADDP	CtxPtr1 = 8, CtxPtr0
+	mov	CTable = ip
+}
+{	.mmi
+	ADDP	DPtrIn = 0, DPtrIn
+	ADDP	CtxPtr0 = 0, CtxPtr0
+	.save	ar.lc, LCSave
+	mov	LCSave = ar.lc
+}
+;;
+{	.mmi
+	add	CTable = .md5_tbl_data_order#-.md5_block#, CTable
+	and	InAlign = 0x3, DPtrIn
+}
+
+{	.mmi
+	ld4	AccumA = [CtxPtr0], 4
+	ld4	AccumC = [CtxPtr1], 4
+	.save pr, PRSave
+	mov	PRSave = pr
+	.body
+}
+;;
+{	.mmi
+	ld4	AccumB = [CtxPtr0]
+	ld4	AccumD = [CtxPtr1]
+	dep	DPtr_ = 0, DPtrIn, 0, 2
+} ;;
+#ifdef HOST_IS_BIG_ENDIAN
+	rum	psr.be;;	// switch to little-endian
+#endif
+{	.mmb
+	ld4	CTable0 = [CTable], 4
+	cmp.ne	pOff, p0 = 0, InAlign
+(pOff)	br.cond.spnt.many .md5_unaligned
+} ;;
+
+//	The FF load/compute loop rotates values three times, so that
+//	loading into M12 here produces the M0 value, M13 -> M1, etc.
+
+.md5_block_loop0:
+{	.mmi
+	ld4	M12_ = [DPtr_], 4
+	mov	TPtr = CTable
+	mov	TRound = CTable0
+} ;;
+{	.mmi
+	ld4	M13_ = [DPtr_], 4
+	mov	A_ = AccumA
+	mov	B_ = AccumB
+} ;;
+{	.mmi
+	ld4	M14_ = [DPtr_], 4
+	mov	C_ = AccumC
+	mov	D_ = AccumD
+} ;;
+{	.mmb
+	ld4	M15_ = [DPtr_], 4
+	add	BlockCount = -1, BlockCount
+	br.call.sptk.many QUICK_RTN = md5_digest_block0
+} ;;
+
+//	Now, we add the new digest values and do some clean-up
+//	before checking if there's another full block to process
+
+{	.mmi
+	add	AccumA = AccumA, A_
+	add	AccumB = AccumB, B_
+	cmp.ne	pAgain, p0 = 0, BlockCount
+}
+{	.mib
+	add	AccumC = AccumC, C_
+	add	AccumD = AccumD, D_
+(pAgain) br.cond.dptk.many .md5_block_loop0
+} ;;
+
+.md5_exit:
+#ifdef HOST_IS_BIG_ENDIAN
+	sum	psr.be;;	// switch back to big-endian mode
+#endif
+{	.mmi
+	st4	[CtxPtr0] = AccumB, -4
+	st4	[CtxPtr1] = AccumD, -4
+	mov	pr = PRSave, 0x1ffff ;;
+}
+{	.mmi
+	st4	[CtxPtr0] = AccumA
+	st4	[CtxPtr1] = AccumC
+	mov	ar.lc = LCSave
+} ;;
+{	.mib
+	mov	ar.pfs = PFSSave
+	br.ret.sptk.few	rp
+} ;;
+
+#define	MD5UNALIGNED(offset)						\
+.md5_process##offset:							\
+{	.mib ;								\
+	nop	0x0	;						\
+	GETRW(DTmp, DTmp, offset) ;					\
+} ;;									\
+.md5_block_loop##offset:						\
+{	.mmi ;								\
+	ld4	Y_ = [DPtr_], 4 ;					\
+	mov	TPtr = CTable ;						\
+	mov	TRound = CTable0 ;					\
+} ;;									\
+{	.mmi ;								\
+	ld4	M13_ = [DPtr_], 4 ;					\
+	mov	A_ = AccumA ;						\
+	mov	B_ = AccumB ;						\
+} ;;									\
+{	.mii ;								\
+	ld4	M14_ = [DPtr_], 4 ;					\
+	GETLW(W_, Y_, offset) ;						\
+	mov	C_ = AccumC ;						\
+}									\
+{	.mmi ;								\
+	mov	D_ = AccumD ;;						\
+	or	M12_ = W_, DTmp ;					\
+	GETRW(DTmp, Y_, offset) ;					\
+}									\
+{	.mib ;								\
+	ld4	M15_ = [DPtr_], 4 ;					\
+	add	BlockCount = -1, BlockCount ;				\
+	br.call.sptk.many QUICK_RTN = md5_digest_block##offset;		\
+} ;;									\
+{	.mmi ;								\
+	add	AccumA = AccumA, A_ ;					\
+	add	AccumB = AccumB, B_ ;					\
+	cmp.ne	pAgain, p0 = 0, BlockCount ;				\
+}									\
+{	.mib ;								\
+	add	AccumC = AccumC, C_ ;					\
+	add	AccumD = AccumD, D_ ;					\
+(pAgain) br.cond.dptk.many .md5_block_loop##offset ;			\
+} ;;									\
+{	.mib ;								\
+	nop	0x0 ;							\
+	nop	0x0 ;							\
+	br.cond.sptk.many .md5_exit ;					\
+} ;;
+
+	.align	32
+.md5_unaligned:
+//
+//	Because variable shifts are expensive, we special case each of
+//	the four alignements. In practice, this won't hurt too much
+//	since only one working set of code will be loaded.
+//
+{	.mib
+	ld4	DTmp = [DPtr_], 4
+	cmp.eq	pOff, p0 = 1, InAlign
+(pOff)	br.cond.dpnt.many .md5_process1
+} ;;
+{	.mib
+	cmp.eq	pOff, p0 = 2, InAlign
+	nop	0x0
+(pOff)	br.cond.dpnt.many .md5_process2
+} ;;
+	MD5UNALIGNED(3)
+	MD5UNALIGNED(1)
+	MD5UNALIGNED(2)
+
+	.endp md5_block_asm_data_order
+
+
+// MD5 Perform the F function and load
+//
+// Passed the first 4 words (M0 - M3) and initial (A, B, C, D) values,
+// computes the FF() round of functions, then branches to the common
+// digest code to finish up with GG(), HH, and II().
+//
+// INPUT
+//
+// rp Return Address -
+//
+// CODE
+//
+// v0 PFS bit bucket PFS
+// v1 Loop Trip Count LTrip
+// pt0 Load next word pMore
+
+/* For F round: */
+#define LTrip	r9
+#define PFS	r8
+#define pMore	p6
+
+/* For GHI rounds: */
+#define T	r9
+#define U	r10
+#define V	r11
+
+#define COMPUTE(a, b, s, M, R)			\
+{						\
+	.mii ;					\
+	ld4 TRound = [TPtr], 4 ;		\
+	dep.z Y = Z, 32, 32 ;;			\
+	shrp Z = Z, Y, 64 - s ;			\
+} ;;						\
+{						\
+	.mmi ;					\
+	add a = Z, b ;				\
+	mov R = M ;				\
+	nop 0x0 ;				\
+} ;;
+
+#define LOOP(a, b, s, M, R, label)		\
+{	.mii ;					\
+	ld4 TRound = [TPtr], 4 ;		\
+	dep.z Y = Z, 32, 32 ;;			\
+	shrp Z = Z, Y, 64 - s ;			\
+} ;;						\
+{	.mib ;					\
+	add a = Z, b ;				\
+	mov R = M ;				\
+	br.ctop.sptk.many label ;		\
+} ;;
+
+// G(B, C, D) = (B & D) | (C & ~D)
+
+#define G(a, b, c, d, M)			\
+{	.mmi ;					\
+	add Z = M, TRound ;			\
+	and Y = b, d ;				\
+	andcm X = c, d ;			\
+} ;;						\
+{	.mii ;					\
+	add Z = Z, a ;				\
+	or Y = Y, X ;;				\
+	add Z = Z, Y ;				\
+} ;;
+
+// H(B, C, D) = B ^ C ^ D
+
+#define H(a, b, c, d, M)			\
+{	.mmi ;					\
+	add Z = M, TRound ;			\
+	xor Y = b, c ;				\
+	nop 0x0 ;				\
+} ;;						\
+{	.mii ;					\
+	add Z = Z, a ;				\
+	xor Y = Y, d ;;				\
+	add Z = Z, Y ;				\
+} ;;
+
+// I(B, C, D) = C ^ (B | ~D)
+//
+// However, since we have an andcm operator, we use the fact that
+//
+// Y ^ Z == ~Y ^ ~Z
+//
+// to rewrite the expression as
+//
+// I(B, C, D) = ~C ^ (~B & D)
+
+#define I(a, b, c, d, M)			\
+{	.mmi ;					\
+	add Z = M, TRound ;			\
+	andcm Y = d, b ;			\
+	andcm X = -1, c ;			\
+} ;;						\
+{	.mii ;					\
+	add Z = Z, a ;				\
+	xor Y = Y, X ;;				\
+	add Z = Z, Y ;				\
+} ;;
+
+#define GG4(label)				\
+	G(A, B, C, D, M0)			\
+	COMPUTE(A, B, 5, M0, RotateM0)		\
+	G(D, A, B, C, M1)			\
+	COMPUTE(D, A, 9, M1, RotateM1)		\
+	G(C, D, A, B, M2)			\
+	COMPUTE(C, D, 14, M2, RotateM2)		\
+	G(B, C, D, A, M3)			\
+	LOOP(B, C, 20, M3, RotateM3, label)
+
+#define HH4(label)				\
+	H(A, B, C, D, M0)			\
+	COMPUTE(A, B, 4, M0, RotateM0)		\
+	H(D, A, B, C, M1)			\
+	COMPUTE(D, A, 11, M1, RotateM1)		\
+	H(C, D, A, B, M2)			\
+	COMPUTE(C, D, 16, M2, RotateM2)		\
+	H(B, C, D, A, M3)			\
+	LOOP(B, C, 23, M3, RotateM3, label)
+
+#define II4(label)				\
+	I(A, B, C, D, M0)			\
+	COMPUTE(A, B, 6, M0, RotateM0)		\
+	I(D, A, B, C, M1)			\
+	COMPUTE(D, A, 10, M1, RotateM1)		\
+	I(C, D, A, B, M2)			\
+	COMPUTE(C, D, 15, M2, RotateM2)		\
+	I(B, C, D, A, M3)			\
+	LOOP(B, C, 21, M3, RotateM3, label)
+
+#define FFLOAD(a, b, c, d, M, N, s)		\
+{	.mii ;					\
+(pMore) ld4 N = [DPtr], 4 ;			\
+	add Z = M, TRound ;			\
+	and Y = c, b ;				\
+}						\
+{	.mmi ;					\
+	andcm X = d, b ;;			\
+	add Z = Z, a ;				\
+	or Y = Y, X ;				\
+} ;;						\
+{	.mii ;					\
+	ld4 TRound = [TPtr], 4 ;		\
+	add Z = Z, Y ;;				\
+	dep.z Y = Z, 32, 32 ;			\
+} ;;						\
+{	.mii ;					\
+	nop 0x0 ;				\
+	shrp Z = Z, Y, 64 - s ;;		\
+	add a = Z, b ;				\
+} ;;
+
+#define FFLOOP(a, b, c, d, M, N, s, dest)	\
+{	.mii ;					\
+(pMore)	ld4 N = [DPtr], 4 ;			\
+	add Z = M, TRound ;			\
+	and Y = c, b ;				\
+}						\
+{	.mmi ;					\
+	andcm X = d, b ;;			\
+	add Z = Z, a ;				\
+	or Y = Y, X ;				\
+} ;;						\
+{	.mii ;					\
+	ld4 TRound = [TPtr], 4 ;		\
+	add Z = Z, Y ;;				\
+	dep.z Y = Z, 32, 32 ;			\
+} ;;						\
+{	.mii ;					\
+	nop 0x0 ;				\
+	shrp Z = Z, Y, 64 - s ;;		\
+	add a = Z, b ;				\
+}						\
+{	.mib ;					\
+	cmp.ne pMore, p0 = 0, LTrip ;		\
+	add LTrip = -1, LTrip ;			\
+	br.ctop.dptk.many dest ;		\
+} ;;
+
+	.type md5_digest_block0, @function
+	.align 32
+
+	.proc md5_digest_block0
+	.prologue
+md5_digest_block0:
+	.altrp QUICK_RTN
+	.body
+{	.mmi
+	alloc PFS = ar.pfs, _NINPUTS, _NLOCALS, _NOUTPUT, _NROTATE
+	mov LTrip = 2
+	mov ar.lc = 3
+} ;;
+{	.mii
+	cmp.eq pMore, p0 = r0, r0
+	mov ar.ec = 0
+	nop 0x0
+} ;;
+
+.md5_FF_round0:
+	FFLOAD(A, B, C, D, M12, RotateM0, 7)
+	FFLOAD(D, A, B, C, M13, RotateM1, 12)
+	FFLOAD(C, D, A, B, M14, RotateM2, 17)
+	FFLOOP(B, C, D, A, M15, RotateM3, 22, .md5_FF_round0)
+	//
+	// !!! Fall through to md5_digest_GHI
+	//
+	.endp md5_digest_block0
+
+	.type md5_digest_GHI, @function
+	.align 32
+
+	.proc md5_digest_GHI
+	.prologue
+	.regstk _NINPUTS, _NLOCALS, _NOUTPUT, _NROTATE
+md5_digest_GHI:
+	.altrp QUICK_RTN
+	.body
+//
+// The following sequence shuffles the block counstants round for the
+// next round:
+//
+// 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
+// 1 6 11 0 5 10 14 4 9 14 3 8 13 2 7 12
+//
+{	.mmi
+	mov Z = M0
+	mov Y = M15
+	mov ar.lc = 3
+}
+{	.mmi
+	mov X = M2
+	mov W = M9
+	mov V = M4
+} ;;
+
+{	.mmi
+	mov M0 = M1
+	mov M15 = M12
+	mov ar.ec = 1
+}
+{	.mmi
+	mov M2 = M11
+	mov M9 = M14
+	mov M4 = M5
+} ;;
+
+{	.mmi
+	mov M1 = M6
+	mov M12 = M13
+	mov U = M3
+}
+{	.mmi
+	mov M11 = M8
+	mov M14 = M7
+	mov M5 = M10
+} ;;
+
+{	.mmi
+	mov M6 = Y
+	mov M13 = X
+	mov M3 = Z
+}
+{	.mmi
+	mov M8 = W
+	mov M7 = V
+	mov M10 = U
+} ;;
+
+.md5_GG_round:
+	GG4(.md5_GG_round)
+
+// The following sequence shuffles the block constants round for the
+// next round:
+//
+// 1 6 11 0 5 10 14 4 9 14 3 8 13 2 7 12
+// 5 8 11 14 1 4 7 10 13 0 3 6 9 12 15 2
+
+{	.mmi
+	mov Z = M0
+	mov Y = M1
+	mov ar.lc = 3
+}
+{	.mmi
+	mov X = M3
+	mov W = M5
+	mov V = M6
+} ;;
+
+{	.mmi
+	mov M0 = M4
+	mov M1 = M11
+	mov ar.ec = 1
+}
+{	.mmi
+	mov M3 = M9
+	mov U = M8
+	mov T = M13
+} ;;
+
+{	.mmi
+	mov M4 = Z
+	mov M11 = Y
+	mov M5 = M7
+}
+{	.mmi
+	mov M6 = M14
+	mov M8 = M12
+	mov M13 = M15
+} ;;
+
+{	.mmi
+	mov M7 = W
+	mov M14 = V
+	nop 0x0
+}
+{	.mmi
+	mov M9 = X
+	mov M12 = U
+	mov M15 = T
+} ;;
+
+.md5_HH_round:
+	HH4(.md5_HH_round)
+
+// The following sequence shuffles the block constants round for the
+// next round:
+//
+// 5 8 11 14 1 4 7 10 13 0 3 6 9 12 15 2
+// 0 7 14 5 12 3 10 1 8 15 6 13 4 11 2 9
+
+{	.mmi
+	mov Z = M0
+	mov Y = M15
+	mov ar.lc = 3
+}
+{	.mmi
+	mov X = M10
+	mov W = M1
+	mov V = M4
+} ;;
+
+{	.mmi
+	mov M0 = M9
+	mov M15 = M12
+	mov ar.ec = 1
+}
+{	.mmi
+	mov M10 = M11
+	mov M1 = M6
+	mov M4 = M13
+} ;;
+
+{	.mmi
+	mov M9 = M14
+	mov M12 = M5
+	mov U = M3
+}
+{	.mmi
+	mov M11 = M8
+	mov M6 = M7
+	mov M13 = M2
+} ;;
+
+{	.mmi
+	mov M14 = Y
+	mov M5 = X
+	mov M3 = Z
+}
+{	.mmi
+	mov M8 = W
+	mov M7 = V
+	mov M2 = U
+} ;;
+
+.md5_II_round:
+	II4(.md5_II_round)
+
+{	.mib
+	nop 0x0
+	nop 0x0
+	br.ret.sptk.many QUICK_RTN
+} ;;
+
+	.endp md5_digest_GHI
+
+#define FFLOADU(a, b, c, d, M, P, N, s, offset)	\
+{	.mii ;					\
+(pMore) ld4 N = [DPtr], 4 ;			\
+	add Z = M, TRound ;			\
+	and Y = c, b ;				\
+}						\
+{	.mmi ;					\
+	andcm X = d, b ;;			\
+	add Z = Z, a ;				\
+	or Y = Y, X ;				\
+} ;;						\
+{	.mii ;					\
+	ld4 TRound = [TPtr], 4 ;		\
+	GETLW(W, P, offset) ;			\
+	add Z = Z, Y ;				\
+} ;;						\
+{	.mii ;					\
+	or W = W, DTmp ;			\
+	dep.z Y = Z, 32, 32 ;;			\
+	shrp Z = Z, Y, 64 - s ;			\
+} ;;						\
+{	.mii ;					\
+	add a = Z, b ;				\
+	GETRW(DTmp, P, offset) ;		\
+	mov P = W ;				\
+} ;;
+
+#define FFLOOPU(a, b, c, d, M, P, N, s, offset)		\
+{	.mii ;						\
+(pMore) ld4 N = [DPtr], 4 ;				\
+	add Z = M, TRound ;				\
+	and Y = c, b ;					\
+}							\
+{	.mmi ;						\
+	andcm X = d, b ;;				\
+	add Z = Z, a ;					\
+	or Y = Y, X ;					\
+} ;;							\
+{	.mii ;						\
+	ld4 TRound = [TPtr], 4 ;			\
+(pMore) GETLW(W, P, offset) 	;			\
+	add Z = Z, Y ;					\
+} ;;							\
+{	.mii ;						\
+(pMore) or W = W, DTmp ;				\
+	dep.z Y = Z, 32, 32 ;;				\
+	shrp Z = Z, Y, 64 - s ;				\
+} ;;							\
+{	.mii ;						\
+	add a = Z, b ;					\
+(pMore) GETRW(DTmp, P, offset) 	;			\
+(pMore) mov P = W ;					\
+}							\
+{	.mib ;						\
+	cmp.ne pMore, p0 = 0, LTrip ;			\
+	add LTrip = -1, LTrip ;				\
+	br.ctop.sptk.many .md5_FF_round##offset ;	\
+} ;;
+
+#define MD5FBLOCK(offset)						\
+	.type md5_digest_block##offset, @function ;			\
+									\
+	.align 32 ;							\
+	.proc md5_digest_block##offset ;				\
+	.prologue ;							\
+	.altrp QUICK_RTN ;						\
+	.body ;								\
+md5_digest_block##offset:						\
+{	.mmi ;								\
+	alloc PFS = ar.pfs, _NINPUTS, _NLOCALS, _NOUTPUT, _NROTATE ;	\
+	mov LTrip = 2 ;							\
+	mov ar.lc = 3 ;							\
+} ;;									\
+{	.mii ;								\
+	cmp.eq pMore, p0 = r0, r0 ;					\
+	mov ar.ec = 0 ;							\
+	nop 0x0 ;							\
+} ;;									\
+									\
+	.pred.rel "mutex", pLoad, pSkip ;				\
+.md5_FF_round##offset:							\
+	FFLOADU(A, B, C, D, M12, M13, RotateM0, 7, offset)		\
+	FFLOADU(D, A, B, C, M13, M14, RotateM1, 12, offset)		\
+	FFLOADU(C, D, A, B, M14, M15, RotateM2, 17, offset)		\
+	FFLOOPU(B, C, D, A, M15, RotateM0, RotateM3, 22, offset)	\
+									\
+{	.mib ;								\
+	nop 0x0 ;							\
+	nop 0x0 ;							\
+	br.cond.sptk.many md5_digest_GHI ;				\
+} ;;									\
+	.endp md5_digest_block##offset
+
+MD5FBLOCK(1)
+MD5FBLOCK(2)
+MD5FBLOCK(3)
+
+	.align 64
+	.type md5_constants, @object
+md5_constants:
+.md5_tbl_data_order:			// To ensure little-endian data
+					// order, code as bytes.
+	data1 0x78, 0xa4, 0x6a, 0xd7	//     0
+	data1 0x56, 0xb7, 0xc7, 0xe8	//     1
+	data1 0xdb, 0x70, 0x20, 0x24	//     2
+	data1 0xee, 0xce, 0xbd, 0xc1	//     3
+	data1 0xaf, 0x0f, 0x7c, 0xf5	//     4
+	data1 0x2a, 0xc6, 0x87, 0x47	//     5
+	data1 0x13, 0x46, 0x30, 0xa8	//     6
+	data1 0x01, 0x95, 0x46, 0xfd	//     7
+	data1 0xd8, 0x98, 0x80, 0x69	//     8
+	data1 0xaf, 0xf7, 0x44, 0x8b	//     9
+	data1 0xb1, 0x5b, 0xff, 0xff	//    10
+	data1 0xbe, 0xd7, 0x5c, 0x89	//    11
+	data1 0x22, 0x11, 0x90, 0x6b	//    12
+	data1 0x93, 0x71, 0x98, 0xfd	//    13
+	data1 0x8e, 0x43, 0x79, 0xa6	//    14
+	data1 0x21, 0x08, 0xb4, 0x49	//    15
+	data1 0x62, 0x25, 0x1e, 0xf6	//    16
+	data1 0x40, 0xb3, 0x40, 0xc0	//    17
+	data1 0x51, 0x5a, 0x5e, 0x26	//    18
+	data1 0xaa, 0xc7, 0xb6, 0xe9	//    19
+	data1 0x5d, 0x10, 0x2f, 0xd6	//    20
+	data1 0x53, 0x14, 0x44, 0x02	//    21
+	data1 0x81, 0xe6, 0xa1, 0xd8	//    22
+	data1 0xc8, 0xfb, 0xd3, 0xe7	//    23
+	data1 0xe6, 0xcd, 0xe1, 0x21	//    24
+	data1 0xd6, 0x07, 0x37, 0xc3	//    25
+	data1 0x87, 0x0d, 0xd5, 0xf4	//    26
+	data1 0xed, 0x14, 0x5a, 0x45	//    27
+	data1 0x05, 0xe9, 0xe3, 0xa9	//    28
+	data1 0xf8, 0xa3, 0xef, 0xfc	//    29
+	data1 0xd9, 0x02, 0x6f, 0x67	//    30
+	data1 0x8a, 0x4c, 0x2a, 0x8d	//    31
+	data1 0x42, 0x39, 0xfa, 0xff	//    32
+	data1 0x81, 0xf6, 0x71, 0x87	//    33
+	data1 0x22, 0x61, 0x9d, 0x6d	//    34
+	data1 0x0c, 0x38, 0xe5, 0xfd	//    35
+	data1 0x44, 0xea, 0xbe, 0xa4	//    36
+	data1 0xa9, 0xcf, 0xde, 0x4b	//    37
+	data1 0x60, 0x4b, 0xbb, 0xf6	//    38
+	data1 0x70, 0xbc, 0xbf, 0xbe	//    39
+	data1 0xc6, 0x7e, 0x9b, 0x28	//    40
+	data1 0xfa, 0x27, 0xa1, 0xea	//    41
+	data1 0x85, 0x30, 0xef, 0xd4	//    42
+	data1 0x05, 0x1d, 0x88, 0x04	//    43
+	data1 0x39, 0xd0, 0xd4, 0xd9	//    44
+	data1 0xe5, 0x99, 0xdb, 0xe6	//    45
+	data1 0xf8, 0x7c, 0xa2, 0x1f	//    46
+	data1 0x65, 0x56, 0xac, 0xc4	//    47
+	data1 0x44, 0x22, 0x29, 0xf4	//    48
+	data1 0x97, 0xff, 0x2a, 0x43	//    49
+	data1 0xa7, 0x23, 0x94, 0xab	//    50
+	data1 0x39, 0xa0, 0x93, 0xfc	//    51
+	data1 0xc3, 0x59, 0x5b, 0x65	//    52
+	data1 0x92, 0xcc, 0x0c, 0x8f	//    53
+	data1 0x7d, 0xf4, 0xef, 0xff	//    54
+	data1 0xd1, 0x5d, 0x84, 0x85	//    55
+	data1 0x4f, 0x7e, 0xa8, 0x6f	//    56
+	data1 0xe0, 0xe6, 0x2c, 0xfe	//    57
+	data1 0x14, 0x43, 0x01, 0xa3	//    58
+	data1 0xa1, 0x11, 0x08, 0x4e	//    59
+	data1 0x82, 0x7e, 0x53, 0xf7	//    60
+	data1 0x35, 0xf2, 0x3a, 0xbd	//    61
+	data1 0xbb, 0xd2, 0xd7, 0x2a	//    62
+	data1 0x91, 0xd3, 0x86, 0xeb	//    63
+.size	md5_constants#,64*4