Index: crc_i386.S
===================================================================
--- crc_i386.S (nonexistent)
+++ crc_i386.S (revision 5)
@@ -0,0 +1,307 @@
+/*
+ Copyright (c) 1990-2007 Info-ZIP. All rights reserved.
+
+ See the accompanying file LICENSE, version 2000-Apr-09 or later
+ (the contents of which are also included in zip.h) for terms of use.
+ If, for some reason, all these files are missing, the Info-ZIP license
+ also may be found at: ftp://ftp.info-zip.org/pub/infozip/license.html
+*/
+/*
+ * crc_i386.S, optimized CRC calculation function for Zip and UnZip,
+ * created by Paul Kienitz and Christian Spieler. Last revised 07 Jan 2007.
+ *
+ * GRR 961110: incorporated Scott Field optimizations from win32/crc_i386.asm
+ * => overall 6% speedup in "unzip -tq" on 9MB zipfile (486-66)
+ *
+ * SPC 970402: revised for Rodney Brown's optimizations (32-bit-wide
+ * aligned reads for most of the data from buffer), can be
+ * disabled by defining the macro NO_32_BIT_LOADS
+ *
+ * SPC 971012: added Rodney Brown's additional tweaks for 32-bit-optimized
+ * CPUs (like the Pentium Pro, Pentium II, and probably some
+ * Pentium clones). This optimization is controlled by the
+ * preprocessor switch "__686" and is disabled by default.
+ * (This default is based on the assumption that most users
+ * do not yet work on a Pentium Pro or Pentium II machine ...)
+ *
+ * COS 050116: Enabled the 686 build by default, because there are hardly any
+ * pre-686 CPUs in serious use nowadays. (See SPC 970402 above.)
+ *
+ * SPC 060103: Updated code to incorporate newer optimizations found in zlib.
+ *
+ * SPC 070107: Added conditional switch to deactivate crc32() compilation.
+ *
+ * FLAT memory model assumed. Calling interface:
+ * - args are pushed onto the stack from right to left,
+ * - return value is given in the EAX register,
+ * - all other registers (with exception of EFLAGS) are preserved. (With
+ * GNU C 2.7.x, %edx and %ecx are `scratch' registers, but preserving
+ * them nevertheless adds only 4 single byte instructions.)
+ *
+ * This source generates the function
+ * ulg crc32(ulg crc, ZCONST uch *buf, extent len).
+ *
+ * Loop unrolling can be disabled by defining the macro NO_UNROLLED_LOOPS.
+ * This results in shorter code at the expense of reduced performance.
+ */
+
+/* This file is NOT used in conjunction with zlib, or when only creation of
+ * the basic CRC_32_Table (for other purpose) is requested.
+ */
+#if !defined(USE_ZLIB) && !defined(CRC_TABLE_ONLY)
+
+/* Preprocess with -DNO_UNDERLINE if your C compiler does not prefix
+ * external symbols with an underline character '_'.
+ */
+#if defined(NO_UNDERLINE) || defined(__ELF__)
+# define _crc32 crc32
+# define _get_crc_table get_crc_table
+#endif
+/* Use 16-byte alignment if your assembler supports it. Warning: gas
+ * uses a log(x) parameter (.align 4 means 16-byte alignment). On SVR4
+ * the parameter is a number of bytes.
+ */
+#ifndef ALIGNMENT
+# define ALIGNMENT .align 4,0x90
+#endif
+
+#if defined(i386) || defined(_i386) || defined(_I386) || defined(__i386)
+
+/* This version is for 386 Unix, OS/2, MSDOS in 32 bit mode (gcc & gas).
+ * Warning: it uses the AT&T syntax: mov source,dest
+ * This file is only optional. If you want to use the C version,
+ * remove -DASM_CRC from CFLAGS in Makefile and set OBJA to an empty string.
+ */
+
+ .file "crc_i386.S"
+
+#if !defined(PRE_686) && !defined(__686)
+ /* Optimize for Pentium Pro and compatible CPUs by default. */
+# define __686
+#endif
+
+#if defined(NO_STD_STACKFRAME) && defined(USE_STD_STACKFRAME)
+# undef USE_STACKFRAME
+#else
+ /* The default is to use standard stack frame entry, because it
+ * results in smaller code!
+ */
+# ifndef USE_STD_STACKFRAME
+# define USE_STD_STACKFRAME
+# endif
+#endif
+
+#ifdef USE_STD_STACKFRAME
+# define _STD_ENTRY pushl %ebp ; movl %esp,%ebp
+# define arg1 8(%ebp)
+# define arg2 12(%ebp)
+# define arg3 16(%ebp)
+# define _STD_LEAVE popl %ebp
+#else /* !USE_STD_STACKFRAME */
+# define _STD_ENTRY
+# define arg1 24(%esp)
+# define arg2 28(%esp)
+# define arg3 32(%esp)
+# define _STD_LEAVE
+#endif /* ?USE_STD_STACKFRAME */
+
+/*
+ * These two (three) macros make up the loop body of the CRC32 cruncher.
+ * registers modified:
+ * eax : crc value "c"
+ * esi : pointer to next data byte (or lword) "buf++"
+ * registers read:
+ * edi : pointer to base of crc_table array
+ * scratch registers:
+ * ebx : index into crc_table array
+ * (requires upper three bytes = 0 when __686 is undefined)
+ */
+#ifndef __686 /* optimize for 386, 486, Pentium */
+#define Do_CRC /* c = (c >> 8) ^ table[c & 0xFF] */\
+ movb %al, %bl ;/* tmp = c & 0xFF */\
+ shrl $8, %eax ;/* c = (c >> 8) */\
+ xorl (%edi, %ebx, 4), %eax ;/* c ^= table[tmp] */
+#else /* __686 : optimize for Pentium Pro and compatible CPUs */
+#define Do_CRC /* c = (c >> 8) ^ table[c & 0xFF] */\
+ movzbl %al, %ebx ;/* tmp = c & 0xFF */\
+ shrl $8, %eax ;/* c = (c >> 8) */\
+ xorl (%edi, %ebx, 4), %eax ;/* c ^=table[tmp] */
+#endif /* ?__686 */
+
+#define Do_CRC_byte /* c = (c >> 8) ^ table[(c^*buf++)&0xFF] */\
+ xorb (%esi), %al ;/* c ^= *buf */\
+ incl %esi ;/* buf++ */\
+ Do_CRC
+
+#define Do_CRC_byteof(ofs) /* c = (c >> 8) ^ table[(c^*buf++)&0xFF] */\
+ xorb ofs(%esi), %al ;/* c ^= *buf */\
+ incl %esi ;/* buf++ */\
+ Do_CRC
+
+#ifndef NO_32_BIT_LOADS
+# ifdef IZ_CRCOPTIM_UNFOLDTBL
+ /* the edx register is needed in crc calculation */
+# define SavLen arg3
+# define UpdCRC_lword \
+ movzbl %al, %ebx ; \
+ movl 3072(%edi,%ebx,4), %edx ; \
+ movzbl %ah, %ebx ; \
+ shrl $16, %eax ; \
+ xor 2048(%edi,%ebx,4), %edx ; \
+ movzbl %al, %ebx ; \
+ shrl $8,%eax ; \
+ xorl 1024(%edi,%ebx,4), %edx ; \
+ movl (%edi,%eax,4), %eax ; \
+ xorl %edx,%eax ;
+# define UpdCRC_lword_sh(dwPtrIncr) \
+ movzbl %al, %ebx ; \
+ movl 3072(%edi,%ebx,4), %edx ; \
+ movzbl %ah, %ebx ; \
+ shrl $16, %eax ; \
+ xor 2048(%edi,%ebx,4), %edx ; \
+ movzbl %al, %ebx ; \
+ addl $4*(dwPtrIncr), %esi ;/* ((ulg *)buf)+=dwPtrIncr */\
+ shrl $8,%eax ; \
+ xorl 1024(%edi,%ebx,4), %edx ; \
+ movl (%edi,%eax,4),%eax ; \
+ xorl %edx,%eax ;
+# else /* !IZ_CRCOPTIM_UNFOLDTBL */
+ /* the edx register is not needed anywhere else */
+# define SavLen %edx
+# define UpdCRC_lword \
+ Do_CRC \
+ Do_CRC \
+ Do_CRC \
+ Do_CRC
+# define UpdCRC_lword_sh(dwPtrIncr) \
+ Do_CRC \
+ Do_CRC \
+ addl $4*(dwPtrIncr), %esi ;/* ((ulg *)buf)++ */\
+ Do_CRC \
+ Do_CRC
+# endif /* ?IZ_CRCOPTIM_UNFOLDTBL */
+#define Do_CRC_lword \
+ xorl (%esi), %eax ;/* c ^= *(ulg *)buf */\
+ UpdCRC_lword_sh(1) /* ... ((ulg *)buf)++ */
+#define Do_CRC_4lword \
+ xorl (%esi), %eax ;/* c ^= *(ulg *)buf */\
+ UpdCRC_lword \
+ xorl 4(%esi), %eax ;/* c ^= *((ulg *)buf+1) */\
+ UpdCRC_lword \
+ xorl 8(%esi), %eax ;/* c ^= *((ulg *)buf+2) */\
+ UpdCRC_lword \
+ xorl 12(%esi), %eax ;/* c ^= *((ulg *)buf]+3 */\
+ UpdCRC_lword_sh(4) /* ... ((ulg *)buf)+=4 */
+#endif /* !NO_32_BIT_LOADS */
+
+
+ .text
+
+ .globl _crc32
+
+_crc32: /* ulg crc32(ulg crc, uch *buf, extent len) */
+ _STD_ENTRY
+ pushl %edi
+ pushl %esi
+ pushl %ebx
+ pushl %edx
+ pushl %ecx
+
+ movl arg2, %esi /* 2nd arg: uch *buf */
+ subl %eax, %eax /* > if (!buf) */
+ testl %esi, %esi /* > return 0; */
+ jz .L_fine /* > else { */
+ call _get_crc_table
+ movl %eax, %edi
+ movl arg1, %eax /* 1st arg: ulg crc */
+#ifndef __686
+ subl %ebx, %ebx /* ebx=0; bl usable as dword */
+#endif
+ movl arg3, %ecx /* 3rd arg: extent len */
+ notl %eax /* > c = ~crc; */
+
+ testl %ecx, %ecx
+#ifndef NO_UNROLLED_LOOPS
+ jz .L_bail
+# ifndef NO_32_BIT_LOADS
+ /* Assert now have positive length */
+.L_align_loop:
+ testl $3, %esi /* Align buf on lword boundary */
+ jz .L_aligned_now
+ Do_CRC_byte
+ decl %ecx
+ jnz .L_align_loop
+.L_aligned_now:
+# endif /* !NO_32_BIT_LOADS */
+ movl %ecx, SavLen /* save current value of len */
+ shrl $4, %ecx /* ecx = len / 16 */
+ jz .L_No_Sixteens
+/* align loop head at start of 486 internal cache line !! */
+ ALIGNMENT
+.L_Next_Sixteen:
+# ifndef NO_32_BIT_LOADS
+ Do_CRC_4lword
+# else /* NO_32_BIT_LOADS */
+ Do_CRC_byteof(0)
+ Do_CRC_byteof(1)
+ Do_CRC_byteof(2)
+ Do_CRC_byteof(3)
+ Do_CRC_byteof(4)
+ Do_CRC_byteof(5)
+ Do_CRC_byteof(6)
+ Do_CRC_byteof(7)
+ Do_CRC_byteof(8)
+ Do_CRC_byteof(9)
+ Do_CRC_byteof(10)
+ Do_CRC_byteof(11)
+ Do_CRC_byteof(12)
+ Do_CRC_byteof(13)
+ Do_CRC_byteof(14)
+ Do_CRC_byteof(15)
+ addl $16,%esi ;/* buf += 16 */
+# endif /* ?NO_32_BIT_LOADS */
+ decl %ecx
+ jnz .L_Next_Sixteen
+
+.L_No_Sixteens:
+ movl SavLen, %ecx
+ andl $15, %ecx /* ecx = len % 16 */
+# ifndef NO_32_BIT_LOADS
+ shrl $2,%ecx /* ecx = len / 4 */
+ jz .L_No_Fours
+.L_Next_Four:
+ Do_CRC_lword
+ decl %ecx
+ jnz .L_Next_Four
+.L_No_Fours:
+ movl SavLen,%ecx
+ andl $3,%ecx /* ecx = len % 4 */
+# endif /* !NO_32_BIT_LOADS */
+#endif /* !NO_UNROLLED_LOOPS */
+ jz .L_bail /* > if (len) */
+/* align loop head at start of 486 internal cache line !! */
+ ALIGNMENT
+.L_loupe: /* > do { */
+ Do_CRC_byte /* c = CRC32(c,*buf++,crctab);*/
+ decl %ecx /* > } while (--len); */
+ jnz .L_loupe
+
+.L_bail: /* > } */
+ notl %eax /* > return ~c; */
+.L_fine:
+ popl %ecx
+ popl %edx
+ popl %ebx
+ popl %esi
+ popl %edi
+ _STD_LEAVE
+ ret
+
+#else
+ error: this asm version is for 386 only
+#endif /* i386 || _i386 || _I386 || __i386 */
+
+#endif /* !USE_ZLIB && !CRC_TABLE_ONLY */
+
+.section .note.GNU-stack, "", @progbits
+.previous
Index: match.S
===================================================================
--- match.S (nonexistent)
+++ match.S (revision 5)
@@ -0,0 +1,410 @@
+/*
+ Copyright (c) 1990-2005 Info-ZIP. All rights reserved.
+
+ See the accompanying file LICENSE, version 2004-May-22 or later
+ (the contents of which are also included in zip.h) for terms of use.
+ If, for some reason, both of these files are missing, the Info-ZIP license
+ also may be found at: ftp://ftp.info-zip.org/pub/infozip/license.html
+*/
+
+/*
+ * match.s by Jean-loup Gailly. Translated to 32 bit code by Kai Uwe Rommel.
+ * The 68020 version has been written by Francesco Potorti` <pot@cnuce.cnr.it>
+ * with adaptations by Carsten Steger <stegerc@informatik.tu-muenchen.de>,
+ * Andreas Schwab <schwab@lamothe.informatik.uni-dortmund.de> and
+ * Kristoffer Eriksson <ske@pkmab.se>
+ */
+
+/* This file is NOT used in conjunction with zlib. */
+#ifndef USE_ZLIB
+
+/* Preprocess with -DNO_UNDERLINE if your C compiler does not prefix
+ * external symbols with an underline character '_'.
+ */
+#if defined(NO_UNDERLINE) || defined(__ELF__)
+# define _prev prev
+# define _window window
+# define _match_start match_start
+# define _prev_length prev_length
+# define _good_match good_match
+# define _nice_match nice_match
+# define _strstart strstart
+# define _max_chain_length max_chain_length
+
+# define _match_init match_init
+# define _longest_match longest_match
+#endif
+
+#ifdef DYN_ALLOC
+ error: DYN_ALLOC not yet supported in match.s
+#endif
+
+/* Use 16-bytes alignment if your assembler supports it. Warning: gas
+ * uses a log(x) parameter (.align 4 means 16-bytes alignment). On SVR4
+ * the parameter is a number of bytes.
+ */
+#ifndef ALIGNMENT
+# define ALIGNMENT 4
+#endif
+
+
+#ifndef WSIZE
+# define WSIZE 32768
+#endif
+#define MIN_MATCH 3
+#define MAX_MATCH 258
+#define MIN_LOOKAHEAD (MAX_MATCH + MIN_MATCH + 1)
+#define MAX_DIST (WSIZE - MIN_LOOKAHEAD)
+
+#if defined(i386) || defined(_I386) || defined(_i386) || defined(__i386)
+
+/* This version is for 386 Unix or OS/2 in 32 bit mode.
+ * Warning: it uses the AT&T syntax: mov source,dest
+ * This file is only optional. If you want to force the C version,
+ * add -DNO_ASM to CFLAGS in Makefile and set OBJA to an empty string.
+ * If you have reduced WSIZE in (g)zip.h, then make sure this is
+ * assembled with an equivalent -DWSIZE=<whatever>.
+ * This version assumes static allocation of the arrays (-DDYN_ALLOC not used).
+ */
+
+ .file "match.S"
+
+ .globl _match_init
+ .globl _longest_match
+
+ .text
+
+_match_init:
+ ret
+
+/*-----------------------------------------------------------------------
+ * Set match_start to the longest match starting at the given string and
+ * return its length. Matches shorter or equal to prev_length are discarded,
+ * in which case the result is equal to prev_length and match_start is
+ * garbage.
+ * IN assertions: cur_match is the head of the hash chain for the current
+ * string (strstart) and its distance is <= MAX_DIST, and prev_length >= 1
+ */
+
+ .align ALIGNMENT
+
+_longest_match: /* int longest_match(cur_match) */
+
+#define cur_match 20(%esp)
+ /* return address */ /* esp+16 */
+ push %ebp /* esp+12 */
+ push %edi /* esp+8 */
+ push %esi /* esp+4 */
+ push %ebx /* esp */
+
+/*
+ * match equ esi
+ * scan equ edi
+ * chain_length equ ebp
+ * best_len equ ebx
+ * limit equ edx
+ */
+ mov cur_match,%esi
+ mov _strstart,%edx
+ mov _max_chain_length,%ebp /* chain_length = max_chain_length */
+ mov %edx,%edi
+ sub $(MAX_DIST),%edx /* limit = strstart-MAX_DIST */
+ cld /* string ops increment si and di */
+ jae limit_ok
+ sub %edx,%edx /* limit = NIL */
+limit_ok:
+ add $2+_window,%edi /* edi = offset(window+strstart+2) */
+ mov _prev_length,%ebx /* best_len = prev_length */
+ movw -2(%edi),%cx /* cx = scan[0..1] */
+ movw -3(%ebx,%edi),%ax /* ax = scan[best_len-1..best_len] */
+ cmp _good_match,%ebx /* do we have a good match already? */
+ jb do_scan
+ shr $2,%ebp /* chain_length >>= 2 */
+ jmp do_scan
+
+ .align ALIGNMENT
+long_loop:
+/* at this point, edi == scan+2, esi == cur_match */
+ movw -3(%ebx,%edi),%ax /* ax = scan[best_len-1..best_len] */
+ movw -2(%edi),%cx /* cx = scan[0..1] */
+short_loop:
+/*
+ * at this point, di == scan+2, si == cur_match,
+ * ax = scan[best_len-1..best_len] and cx = scan[0..1]
+ */
+ and $(WSIZE-1), %esi
+ dec %ebp /* --chain_length */
+ movw _prev(,%esi,2),%si /* cur_match = prev[cur_match] */
+ /* top word of esi is still 0 */
+ jz the_end
+ cmp %edx,%esi /* cur_match <= limit ? */
+ jbe the_end
+do_scan:
+ cmpw _window-1(%ebx,%esi),%ax/* check match at best_len-1 */
+ jne short_loop
+ cmpw _window(%esi),%cx /* check min_match_length match */
+ jne short_loop
+
+ add $2+_window,%esi /* si = match */
+ mov $((MAX_MATCH>>1)-1),%ecx/* scan for at most MAX_MATCH bytes */
+ mov %edi,%eax /* ax = scan+2 */
+ repe; cmpsw /* loop until mismatch */
+ je maxmatch /* match of length MAX_MATCH? */
+mismatch:
+ movb -2(%edi),%cl /* mismatch on first or second byte? */
+ xchg %edi,%eax /* edi = scan+2, eax = end of scan */
+ subb -2(%esi),%cl /* cl = 0 if first bytes equal */
+ sub %edi,%eax /* eax = len */
+ sub $2+_window,%esi /* esi = cur_match + len */
+ sub %eax,%esi /* esi = cur_match */
+ subb $1,%cl /* set carry if cl == 0 (cannot use DEC) */
+ adc $0,%eax /* eax = carry ? len+1 : len */
+ cmp %ebx,%eax /* len > best_len ? */
+ jle long_loop
+ mov %esi,_match_start /* match_start = cur_match */
+ mov %eax,%ebx /* ebx = best_len = len */
+#ifdef FULL_SEARCH
+ cmp $(MAX_MATCH),%eax /* len >= MAX_MATCH ? */
+#else
+ cmp _nice_match,%eax /* len >= nice_match ? */
+#endif
+ jl long_loop
+the_end:
+ mov %ebx,%eax /* result = eax = best_len */
+ pop %ebx
+ pop %esi
+ pop %edi
+ pop %ebp
+ ret
+ .align ALIGNMENT
+maxmatch:
+ cmpsb
+ jmp mismatch
+
+#else /* !(i386 || _I386 || _i386 || __i386) */
+
+/* ======================== 680x0 version ================================= */
+
+#if defined(m68k)||defined(mc68k)||defined(__mc68000__)||defined(__MC68000__)
+# ifndef mc68000
+# define mc68000
+# endif
+#endif
+
+#if defined(__mc68020__) || defined(__MC68020__) || defined(sysV68)
+# ifndef mc68020
+# define mc68020
+# endif
+#endif
+
+#if defined(mc68020) || defined(mc68000)
+
+#if (defined(mc68020) || defined(NeXT)) && !defined(UNALIGNED_OK)
+# define UNALIGNED_OK
+#endif
+
+#ifdef sysV68 /* Try Motorola Delta style */
+
+# define GLOBAL(symbol) global symbol
+# define TEXT text
+# define FILE(filename) file filename
+# define invert_maybe(src,dst) dst,src
+# define imm(data) &data
+# define reg(register) %register
+
+# define addl add.l
+# define addql addq.l
+# define blos blo.b
+# define bhis bhi.b
+# define bras bra.b
+# define clrl clr.l
+# define cmpmb cmpm.b
+# define cmpw cmp.w
+# define cmpl cmp.l
+# define lslw lsl.w
+# define lsrl lsr.l
+# define movel move.l
+# define movew move.w
+# define moveb move.b
+# define moveml movem.l
+# define subl sub.l
+# define subw sub.w
+# define subql subq.l
+
+# define IndBase(bd,An) (bd,An)
+# define IndBaseNdxl(bd,An,Xn) (bd,An,Xn.l)
+# define IndBaseNdxw(bd,An,Xn) (bd,An,Xn.w)
+# define predec(An) -(An)
+# define postinc(An) (An)+
+
+#else /* default style (Sun 3, NeXT, Amiga, Atari) */
+
+# define GLOBAL(symbol) .globl symbol
+# define TEXT .text
+# define FILE(filename) .even
+# define invert_maybe(src,dst) src,dst
+# if defined(sun) || defined(mc68k)
+# define imm(data) #data
+# else
+# define imm(data) \#data
+# endif
+# define reg(register) register
+
+# define blos bcss
+# if defined(sun) || defined(mc68k)
+# define movel movl
+# define movew movw
+# define moveb movb
+# endif
+# define IndBase(bd,An) An@(bd)
+# define IndBaseNdxl(bd,An,Xn) An@(bd,Xn:l)
+# define IndBaseNdxw(bd,An,Xn) An@(bd,Xn:w)
+# define predec(An) An@-
+# define postinc(An) An@+
+
+#endif /* styles */
+
+#define Best_Len reg(d0) /* unsigned */
+#define Cur_Match reg(d1) /* Ipos */
+#define Loop_Counter reg(d2) /* int */
+#define Scan_Start reg(d3) /* unsigned short */
+#define Scan_End reg(d4) /* unsigned short */
+#define Limit reg(d5) /* IPos */
+#define Chain_Length reg(d6) /* unsigned */
+#define Scan_Test reg(d7)
+#define Scan reg(a0) /* *uch */
+#define Match reg(a1) /* *uch */
+#define Prev_Address reg(a2) /* *Pos */
+#define Scan_Ini reg(a3) /* *uch */
+#define Match_Ini reg(a4) /* *uch */
+#define Stack_Pointer reg(sp)
+
+ GLOBAL (_match_init)
+ GLOBAL (_longest_match)
+
+ TEXT
+
+ FILE ("match.S")
+
+_match_init:
+ rts
+
+/*-----------------------------------------------------------------------
+ * Set match_start to the longest match starting at the given string and
+ * return its length. Matches shorter or equal to prev_length are discarded,
+ * in which case the result is equal to prev_length and match_start is
+ * garbage.
+ * IN assertions: cur_match is the head of the hash chain for the current
+ * string (strstart) and its distance is <= MAX_DIST, and prev_length >= 1
+ */
+
+/* int longest_match (cur_match) */
+
+#ifdef UNALIGNED_OK
+# define pushreg 15928 /* d2-d6/a2-a4 */
+# define popreg 7292
+#else
+# define pushreg 16184 /* d2-d7/a2-a4 */
+# define popreg 7420
+#endif
+
+_longest_match:
+ movel IndBase(4,Stack_Pointer),Cur_Match
+ moveml imm(pushreg),predec(Stack_Pointer)
+ movel _max_chain_length,Chain_Length
+ movel _prev_length,Best_Len
+ movel imm(_prev),Prev_Address
+ movel imm(_window+MIN_MATCH),Match_Ini
+ movel _strstart,Limit
+ movel Match_Ini,Scan_Ini
+ addl Limit,Scan_Ini
+ subw imm(MAX_DIST),Limit
+ bhis L__limit_ok
+ clrl Limit
+L__limit_ok:
+ cmpl invert_maybe(_good_match,Best_Len)
+ blos L__length_ok
+ lsrl imm(2),Chain_Length
+L__length_ok:
+ subql imm(1),Chain_Length
+#ifdef UNALIGNED_OK
+ movew IndBase(-MIN_MATCH,Scan_Ini),Scan_Start
+ movew IndBaseNdxw(-MIN_MATCH-1,Scan_Ini,Best_Len),Scan_End
+#else
+ moveb IndBase(-MIN_MATCH,Scan_Ini),Scan_Start
+ lslw imm(8),Scan_Start
+ moveb IndBase(-MIN_MATCH+1,Scan_Ini),Scan_Start
+ moveb IndBaseNdxw(-MIN_MATCH-1,Scan_Ini,Best_Len),Scan_End
+ lslw imm(8),Scan_End
+ moveb IndBaseNdxw(-MIN_MATCH,Scan_Ini,Best_Len),Scan_End
+#endif
+ bras L__do_scan
+
+L__long_loop:
+#ifdef UNALIGNED_OK
+ movew IndBaseNdxw(-MIN_MATCH-1,Scan_Ini,Best_Len),Scan_End
+#else
+ moveb IndBaseNdxw(-MIN_MATCH-1,Scan_Ini,Best_Len),Scan_End
+ lslw imm(8),Scan_End
+ moveb IndBaseNdxw(-MIN_MATCH,Scan_Ini,Best_Len),Scan_End
+#endif
+
+L__short_loop:
+ lslw imm(1),Cur_Match
+ movew IndBaseNdxl(0,Prev_Address,Cur_Match),Cur_Match
+ cmpw invert_maybe(Limit,Cur_Match)
+ dbls Chain_Length,L__do_scan
+ bras L__return
+
+L__do_scan:
+ movel Match_Ini,Match
+ addl Cur_Match,Match
+#ifdef UNALIGNED_OK
+ cmpw invert_maybe(IndBaseNdxw(-MIN_MATCH-1,Match,Best_Len),Scan_End)
+ bne L__short_loop
+ cmpw invert_maybe(IndBase(-MIN_MATCH,Match),Scan_Start)
+ bne L__short_loop
+#else
+ moveb IndBaseNdxw(-MIN_MATCH-1,Match,Best_Len),Scan_Test
+ lslw imm(8),Scan_Test
+ moveb IndBaseNdxw(-MIN_MATCH,Match,Best_Len),Scan_Test
+ cmpw invert_maybe(Scan_Test,Scan_End)
+ bne L__short_loop
+ moveb IndBase(-MIN_MATCH,Match),Scan_Test
+ lslw imm(8),Scan_Test
+ moveb IndBase(-MIN_MATCH+1,Match),Scan_Test
+ cmpw invert_maybe(Scan_Test,Scan_Start)
+ bne L__short_loop
+#endif
+
+ movew imm((MAX_MATCH-MIN_MATCH+1)-1),Loop_Counter
+ movel Scan_Ini,Scan
+L__scan_loop:
+ cmpmb postinc(Match),postinc(Scan)
+ dbne Loop_Counter,L__scan_loop
+
+ subl Scan_Ini,Scan
+ addql imm(MIN_MATCH-1),Scan
+ cmpl invert_maybe(Best_Len,Scan)
+ bls L__short_loop
+ movel Scan,Best_Len
+ movel Cur_Match,_match_start
+#ifdef FULL_SEARCH
+ cmpl invert_maybe(imm(MAX_MATCH),Best_Len)
+#else
+ cmpl invert_maybe(_nice_match,Best_Len)
+#endif
+ blos L__long_loop
+L__return:
+ moveml postinc(Stack_Pointer),imm(popreg)
+ rts
+
+#else
+ error: this asm version is for 386 or 680x0 only
+#endif /* mc68000 || mc68020 */
+#endif /* i386 || _I386 || _i386 || __i386 */
+
+#endif /* !USE_ZLIB */
+
+.section .note.GNU-stack, "", @progbits
+.previous
Index: .
===================================================================
--- . (nonexistent)
+++ . (revision 5)
Property changes on: .
___________________________________________________________________
Added: svn:ignore
## -0,0 +1,73 ##
+
+# install dir
+dist
+
+# Target build dirs
+.a1x-newlib
+.a2x-newlib
+.at91sam7s-newlib
+
+.build-machine
+
+.a1x-glibc
+.a2x-glibc
+.h3-glibc
+.h5-glibc
+.i586-glibc
+.i686-glibc
+.imx6-glibc
+.jz47xx-glibc
+.makefile
+.am335x-glibc
+.omap543x-glibc
+.p5600-glibc
+.power8-glibc
+.power8le-glibc
+.power9-glibc
+.power9le-glibc
+.m1000-glibc
+.riscv64-glibc
+.rk328x-glibc
+.rk33xx-glibc
+.rk339x-glibc
+.s8xx-glibc
+.s9xx-glibc
+.x86_64-glibc
+
+# Hidden files (each file)
+.makefile
+.dist
+.rootfs
+
+# src & hw requires
+.src_requires
+.src_requires_depend
+.requires
+.requires_depend
+
+# Tarballs
+*.gz
+*.bz2
+*.lz
+*.xz
+*.tgz
+*.txz
+
+# Signatures
+*.asc
+*.sig
+*.sign
+*.sha1sum
+
+# Patches
+*.patch
+
+# Descriptions
+*.dsc
+*.txt
+
+# Default linux config files
+*.defconfig
+
+# backup copies
+*~
Radix cross Linux
The main Radix cross Linux repository contains the build scripts of packages, which have the most complete and common functionality for desktop machines
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1 Tag