Rename uallshr_asm.s -> aullshr_asm.s. Remove unneeded .data sections from some files Declare allshr, aullshr, fltused. Should fix linux problems build too. Modified: trunk/reactos/lib/rtl/i386/alldiv_asm.s Modified: trunk/reactos/lib/rtl/i386/alldvrm_asm.s Modified: trunk/reactos/lib/rtl/i386/allmul_asm.s Modified: trunk/reactos/lib/rtl/i386/allrem_asm.s Modified: trunk/reactos/lib/rtl/i386/allshl_asm.s Modified: trunk/reactos/lib/rtl/i386/allshr_asm.s Modified: trunk/reactos/lib/rtl/i386/atan_asm.s Modified: trunk/reactos/lib/rtl/i386/aulldvrm_asm.s Modified: trunk/reactos/lib/rtl/i386/aullrem_asm.s Added: trunk/reactos/lib/rtl/i386/aullshr_asm.s Modified: trunk/reactos/lib/rtl/i386/ceil_asm.s Modified: trunk/reactos/lib/rtl/i386/cos_asm.s Modified: trunk/reactos/lib/rtl/i386/fabs_asm.s Modified: trunk/reactos/lib/rtl/i386/floor_asm.s Modified: trunk/reactos/lib/rtl/i386/ftol_asm.s Modified: trunk/reactos/lib/rtl/i386/log_asm.s Modified: trunk/reactos/lib/rtl/i386/pow_asm.s Modified: trunk/reactos/lib/rtl/i386/sin_asm.s Modified: trunk/reactos/lib/rtl/i386/sqrt_asm.s Modified: trunk/reactos/lib/rtl/i386/tan_asm.s Deleted: trunk/reactos/lib/rtl/i386/uallshr_asm.s Modified: trunk/reactos/lib/rtl/rtl.xml _____
Modified: trunk/reactos/lib/rtl/i386/alldiv_asm.s --- trunk/reactos/lib/rtl/i386/alldiv_asm.s 2005-12-06 09:29:43 UTC (rev 19928) +++ trunk/reactos/lib/rtl/i386/alldiv_asm.s 2005-12-06 13:12:22 UTC (rev 19929) @@ -2,7 +2,7 @@
* COPYRIGHT: See COPYING in the top level directory * PROJECT: ReactOS kernel * PURPOSE: Run-Time Library - * FILE: lib/rtl/i386/math.S + * FILE: lib/rtl/i386/alldiv_asm.S * PROGRAMER: Alex Ionescu (alex@relsoft.net) * Eric Kohl (ekohl@rz-online.de) * @@ -36,13 +36,10 @@ */
.globl __alldiv + .globl __fltused
/* DATA ********************************************************************/
-fzero: - .long 0 // Floating point zero - .long 0 // Floating point zero - __fltused: .long 0x9875
_____
Modified: trunk/reactos/lib/rtl/i386/alldvrm_asm.s --- trunk/reactos/lib/rtl/i386/alldvrm_asm.s 2005-12-06 09:29:43 UTC (rev 19928) +++ trunk/reactos/lib/rtl/i386/alldvrm_asm.s 2005-12-06 13:12:22 UTC (rev 19929) @@ -37,15 +37,6 @@
.globl __alldvrm
- /* DATA ********************************************************************/ - -fzero: - .long 0 // Floating point zero - .long 0 // Floating point zero - -__fltused: - .long 0x9875 - .intel_syntax noprefix
/* FUNCTIONS ***************************************************************/ _____
Modified: trunk/reactos/lib/rtl/i386/allmul_asm.s --- trunk/reactos/lib/rtl/i386/allmul_asm.s 2005-12-06 09:29:43 UTC (rev 19928) +++ trunk/reactos/lib/rtl/i386/allmul_asm.s 2005-12-06 13:12:22 UTC (rev 19929) @@ -36,16 +36,7 @@
*/
.globl __allmul - - /* DATA ********************************************************************/
-fzero: - .long 0 // Floating point zero - .long 0 // Floating point zero - -__fltused: - .long 0x9875 - .intel_syntax noprefix
/* FUNCTIONS ***************************************************************/ _____
Modified: trunk/reactos/lib/rtl/i386/allrem_asm.s --- trunk/reactos/lib/rtl/i386/allrem_asm.s 2005-12-06 09:29:43 UTC (rev 19928) +++ trunk/reactos/lib/rtl/i386/allrem_asm.s 2005-12-06 13:12:22 UTC (rev 19929) @@ -37,15 +37,6 @@
.globl __allrem
- /* DATA ********************************************************************/ - -fzero: - .long 0 // Floating point zero - .long 0 // Floating point zero - -__fltused: - .long 0x9875 - .intel_syntax noprefix
/* FUNCTIONS ***************************************************************/ _____
Modified: trunk/reactos/lib/rtl/i386/allshl_asm.s --- trunk/reactos/lib/rtl/i386/allshl_asm.s 2005-12-06 09:29:43 UTC (rev 19928) +++ trunk/reactos/lib/rtl/i386/allshl_asm.s 2005-12-06 13:12:22 UTC (rev 19929) @@ -36,16 +36,7 @@
*/
.globl __allshl - - /* DATA ********************************************************************/
-fzero: - .long 0 // Floating point zero - .long 0 // Floating point zero - -__fltused: - .long 0x9875 - .intel_syntax noprefix
/* FUNCTIONS ***************************************************************/ _____
Modified: trunk/reactos/lib/rtl/i386/allshr_asm.s --- trunk/reactos/lib/rtl/i386/allshr_asm.s 2005-12-06 09:29:43 UTC (rev 19928) +++ trunk/reactos/lib/rtl/i386/allshr_asm.s 2005-12-06 13:12:22 UTC (rev 19929) @@ -2,7 +2,7 @@
* COPYRIGHT: See COPYING in the top level directory * PROJECT: ReactOS kernel * PURPOSE: Run-Time Library - * FILE: lib/rtl/i386/aulldiv.S + * FILE: lib/rtl/i386/allshr.S * PROGRAMER: Alex Ionescu (alex@relsoft.net) * Eric Kohl (ekohl@rz-online.de) * @@ -35,155 +35,62 @@ * SUCH DAMAGE. */
-.globl __aulldiv +.globl __allshr
- /* DATA ********************************************************************/ - -fzero: - .long 0 // Floating point zero - .long 0 // Floating point zero - -__fltused: - .long 0x9875 - .intel_syntax noprefix
/* FUNCTIONS ***************************************************************/
// -// ulldiv - unsigned long divide +// llshr - long shift right // // Purpose: -// Does a unsigned long divide of the arguments. Arguments are -// not changed. +// Does a signed Long Shift Right +// Shifts a long right any number of bits. // // Entry: -// Arguments are passed on the stack: -// 1st pushed: divisor (QWORD) -// 2nd pushed: dividend (QWORD) +// EDX:EAX - long value to be shifted +// CL - number of bits to shift by // // Exit: -// EDX:EAX contains the quotient (dividend/divisor) -// NOTE: this routine removes the parameters from the stack. +// EDX:EAX - shifted value // // Uses: -// ECX +// CL is destroyed. //
-__aulldiv: +__allshr:
- push ebx - push esi - -// Set up the local stack and save the index registers. When this is done -// the stack frame will look as follows (assuming that the expression a/b will -// generate a call to uldiv(a, b)): // -// ----------------- -// | | -// |---------------| -// | | -// |--divisor (b)--| -// | | -// |---------------| -// | | -// |--dividend (a)-| -// | | -// |---------------| -// | return addr** | -// |---------------| -// | EBX | -// |---------------| -// ESP---->| ESI | -// ----------------- +// Handle shifts of 64 bits or more (if shifting 64 bits or more, the result +// depends only on the high order bit of edx). // + cmp cl,64 + jae short .RETSIGN
-#undef DVNDLO -#undef DVNDHI -#undef DVSRLO -#undef DVSRHI -#define DVNDLO [esp + 12] // stack address of dividend (a) -#define DVNDHI [esp + 16] // stack address of dividend (a) -#define DVSRLO [esp + 20] // stack address of divisor (b) -#define DVSRHI [esp + 24] // stack address of divisor (b) - // -// Now do the divide. First look to see if the divisor is less than 4194304K. -// If so, then we can use a simple algorithm with word divides, otherwise -// things get a little more complex. +// Handle shifts of between 0 and 31 bits // + cmp cl, 32 + jae short .MORE32 + shrd eax,edx,cl + sar edx,cl + ret
- mov eax,DVSRHI // check to see if divisor < 4194304K - or eax,eax - jnz short ..L1 // nope, gotta do this the hard way - mov ecx,DVSRLO // load divisor - mov eax,DVNDHI // load high word of dividend - xor edx,edx - div ecx // get high order bits of quotient - mov ebx,eax // save high bits of quotient - mov eax,DVNDLO // edx:eax <- remainder:lo word of dividend - div ecx // get low order bits of quotient - mov edx,ebx // edx:eax <- quotient hi:quotient lo - jmp short ..L2 // restore stack and return - // -// Here we do it the hard way. Remember, eax contains DVSRHI +// Handle shifts of between 32 and 63 bits // +.MORE32: + mov eax,edx + sar edx,31 + and cl,31 + sar eax,cl + ret
-..L1: - mov ecx,eax // ecx:ebx <- divisor - mov ebx,DVSRLO - mov edx,DVNDHI // edx:eax <- dividend - mov eax,DVNDLO -..L3: - shr ecx,1 // shift divisor right one bit// hi bit <- 0 - rcr ebx,1 - shr edx,1 // shift dividend right one bit// hi bit <- 0 - rcr eax,1 - or ecx,ecx - jnz short ..L3 // loop until divisor < 4194304K - div ebx // now divide, ignore remainder - mov esi,eax // save quotient - // -// We may be off by one, so to check, we will multiply the quotient -// by the divisor and check the result against the orignal dividend -// Note that we must also check for overflow, which can occur if the -// dividend is close to 2**64 and the quotient is off by 1. +// Return double precision 0 or -1, depending on the sign of edx // - - mul dword ptr DVSRHI // QUOT * DVSRHI - mov ecx,eax - mov eax,DVSRLO - mul esi // QUOT * DVSRLO - add edx,ecx // EDX:EAX = QUOT * DVSR - jc short ..L4 // carry means Quotient is off by 1 - -// -// do long compare here between original dividend and the result of the -// multiply in edx:eax. If original is larger or equal, we are ok, otherwise -// subtract one (1) from the quotient. -// - - cmp edx,DVNDHI // compare hi words of result and original - ja short ..L4 // if result > original, do subtract - jb short ..L5 // if result < original, we are ok - cmp eax,DVNDLO // hi words are equal, compare lo words - jbe short ..L5 // if less or equal we are ok, else subtract -..L4: - dec esi // subtract 1 from quotient -..L5: - xor edx,edx // edx:eax <- quotient - mov eax,esi - -// -// Just the cleanup left to do. edx:eax contains the quotient. -// Restore the saved registers and return. -// - -..L2: - - pop esi - pop ebx - - ret 16 +.RETSIGN: + sar edx,31 + mov eax,edx + ret _____
Modified: trunk/reactos/lib/rtl/i386/atan_asm.s --- trunk/reactos/lib/rtl/i386/atan_asm.s 2005-12-06 09:29:43 UTC (rev 19928) +++ trunk/reactos/lib/rtl/i386/atan_asm.s 2005-12-06 13:12:22 UTC (rev 19929) @@ -37,15 +37,6 @@
.globl _atan
- /* DATA ********************************************************************/ - -fzero: - .long 0 // Floating point zero - .long 0 // Floating point zero - -__fltused: - .long 0x9875 - .intel_syntax noprefix
/* FUNCTIONS ***************************************************************/ _____
Modified: trunk/reactos/lib/rtl/i386/aulldvrm_asm.s --- trunk/reactos/lib/rtl/i386/aulldvrm_asm.s 2005-12-06 09:29:43 UTC (rev 19928) +++ trunk/reactos/lib/rtl/i386/aulldvrm_asm.s 2005-12-06 13:12:22 UTC (rev 19929) @@ -37,15 +37,6 @@
.globl __aulldvrm
- /* DATA ********************************************************************/ - -fzero: - .long 0 // Floating point zero - .long 0 // Floating point zero - -__fltused: - .long 0x9875 - .intel_syntax noprefix
/* FUNCTIONS ***************************************************************/ _____
Modified: trunk/reactos/lib/rtl/i386/aullrem_asm.s --- trunk/reactos/lib/rtl/i386/aullrem_asm.s 2005-12-06 09:29:43 UTC (rev 19928) +++ trunk/reactos/lib/rtl/i386/aullrem_asm.s 2005-12-06 13:12:22 UTC (rev 19929) @@ -37,15 +37,6 @@
.globl __aullrem
- /* DATA ********************************************************************/ - -fzero: - .long 0 // Floating point zero - .long 0 // Floating point zero - -__fltused: - .long 0x9875 - .intel_syntax noprefix
/* FUNCTIONS ***************************************************************/ _____
Added: trunk/reactos/lib/rtl/i386/aullshr_asm.s --- trunk/reactos/lib/rtl/i386/aullshr_asm.s 2005-12-06 09:29:43 UTC (rev 19928) +++ trunk/reactos/lib/rtl/i386/aullshr_asm.s 2005-12-06 13:12:22 UTC (rev 19929) @@ -0,0 +1,96 @@
+/* + * COPYRIGHT: See COPYING in the top level directory + * PROJECT: ReactOS kernel + * PURPOSE: Run-Time Library + * FILE: lib/rtl/i386/uallshr.S + * PROGRAMER: Alex Ionescu (alex@relsoft.net) + * Eric Kohl (ekohl@rz-online.de) + * + * Copyright (C) 2002 Michael Ringgaard. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. Neither the name of the project nor the names of its contributors + * may be used to endorse or promote products derived from this software + * without specific prior written permission. + + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES// LOSS OF USE, DATA, OR PROFITS// OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +.globl __aullshr + +.intel_syntax noprefix + +/* FUNCTIONS ***************************************************************/ + +// +// ullshr - long shift right +// +// Purpose: +// Does a unsigned Long Shift Right +// Shifts a long right any number of bits. +// +// Entry: +// EDX:EAX - long value to be shifted +// CL - number of bits to shift by +// +// Exit: +// EDX:EAX - shifted value +// +// Uses: +// CL is destroyed. +// + +__aullshr: + +// +// Handle shifts of 64 bits or more (if shifting 64 bits or more, the result +// depends only on the high order bit of edx). +// + cmp cl,64 + jae short ..RETZERO + +// +// Handle shifts of between 0 and 31 bits +// + cmp cl, 32 + jae short ..MORE32 + shrd eax,edx,cl + shr edx,cl + ret + +// +// Handle shifts of between 32 and 63 bits +// +..MORE32: + mov eax,edx + xor edx,edx + and cl,31 + shr eax,cl + ret + +// +// return 0 in edx:eax +// +..RETZERO: + xor eax,eax + xor edx,edx + ret _____
Modified: trunk/reactos/lib/rtl/i386/ceil_asm.s --- trunk/reactos/lib/rtl/i386/ceil_asm.s 2005-12-06 09:29:43 UTC (rev 19928) +++ trunk/reactos/lib/rtl/i386/ceil_asm.s 2005-12-06 13:12:22 UTC (rev 19929) @@ -36,16 +36,7 @@
*/
.globl _ceil - - /* DATA ********************************************************************/
-fzero: - .long 0 // Floating point zero - .long 0 // Floating point zero - -__fltused: - .long 0x9875 - .intel_syntax noprefix
/* FUNCTIONS ***************************************************************/ _____
Modified: trunk/reactos/lib/rtl/i386/cos_asm.s --- trunk/reactos/lib/rtl/i386/cos_asm.s 2005-12-06 09:29:43 UTC (rev 19928) +++ trunk/reactos/lib/rtl/i386/cos_asm.s 2005-12-06 13:12:22 UTC (rev 19929) @@ -36,16 +36,7 @@
*/
.globl _cos - - /* DATA ********************************************************************/
-fzero: - .long 0 // Floating point zero - .long 0 // Floating point zero - -__fltused: - .long 0x9875 - .intel_syntax noprefix
/* FUNCTIONS ***************************************************************/ _____
Modified: trunk/reactos/lib/rtl/i386/fabs_asm.s --- trunk/reactos/lib/rtl/i386/fabs_asm.s 2005-12-06 09:29:43 UTC (rev 19928) +++ trunk/reactos/lib/rtl/i386/fabs_asm.s 2005-12-06 13:12:22 UTC (rev 19929) @@ -37,15 +37,6 @@
.globl _fabs
- /* DATA ********************************************************************/ - -fzero: - .long 0 // Floating point zero - .long 0 // Floating point zero - -__fltused: - .long 0x9875 - .intel_syntax noprefix
/* FUNCTIONS ***************************************************************/ _____
Modified: trunk/reactos/lib/rtl/i386/floor_asm.s --- trunk/reactos/lib/rtl/i386/floor_asm.s 2005-12-06 09:29:43 UTC (rev 19928) +++ trunk/reactos/lib/rtl/i386/floor_asm.s 2005-12-06 13:12:22 UTC (rev 19929) @@ -37,15 +37,6 @@
.globl _floor
- /* DATA ********************************************************************/ - -fzero: - .long 0 // Floating point zero - .long 0 // Floating point zero - -__fltused: - .long 0x9875 - .intel_syntax noprefix
/* FUNCTIONS ***************************************************************/ _____
Modified: trunk/reactos/lib/rtl/i386/ftol_asm.s --- trunk/reactos/lib/rtl/i386/ftol_asm.s 2005-12-06 09:29:43 UTC (rev 19928) +++ trunk/reactos/lib/rtl/i386/ftol_asm.s 2005-12-06 13:12:22 UTC (rev 19929) @@ -37,15 +37,6 @@
.globl __ftol
- /* DATA ********************************************************************/ - -fzero: - .long 0 // Floating point zero - .long 0 // Floating point zero - -__fltused: - .long 0x9875 - .intel_syntax noprefix
/* FUNCTIONS ***************************************************************/ _____
Modified: trunk/reactos/lib/rtl/i386/log_asm.s --- trunk/reactos/lib/rtl/i386/log_asm.s 2005-12-06 09:29:43 UTC (rev 19928) +++ trunk/reactos/lib/rtl/i386/log_asm.s 2005-12-06 13:12:22 UTC (rev 19929) @@ -37,15 +37,6 @@
.globl _log
- /* DATA ********************************************************************/ - -fzero: - .long 0 // Floating point zero - .long 0 // Floating point zero - -__fltused: - .long 0x9875 - .intel_syntax noprefix
/* FUNCTIONS ***************************************************************/ _____
Modified: trunk/reactos/lib/rtl/i386/pow_asm.s --- trunk/reactos/lib/rtl/i386/pow_asm.s 2005-12-06 09:29:43 UTC (rev 19928) +++ trunk/reactos/lib/rtl/i386/pow_asm.s 2005-12-06 13:12:22 UTC (rev 19929) @@ -43,9 +43,6 @@
.long 0 // Floating point zero .long 0 // Floating point zero
-__fltused: - .long 0x9875 - .intel_syntax noprefix
/* FUNCTIONS ***************************************************************/ _____
Modified: trunk/reactos/lib/rtl/i386/sin_asm.s --- trunk/reactos/lib/rtl/i386/sin_asm.s 2005-12-06 09:29:43 UTC (rev 19928) +++ trunk/reactos/lib/rtl/i386/sin_asm.s 2005-12-06 13:12:22 UTC (rev 19929) @@ -36,16 +36,7 @@
*/
.globl _sin - - /* DATA ********************************************************************/
-fzero: - .long 0 // Floating point zero - .long 0 // Floating point zero - -__fltused: - .long 0x9875 - .intel_syntax noprefix
/* FUNCTIONS ***************************************************************/ _____
Modified: trunk/reactos/lib/rtl/i386/sqrt_asm.s --- trunk/reactos/lib/rtl/i386/sqrt_asm.s 2005-12-06 09:29:43 UTC (rev 19928) +++ trunk/reactos/lib/rtl/i386/sqrt_asm.s 2005-12-06 13:12:22 UTC (rev 19929) @@ -37,15 +37,6 @@
.globl _sqrt
- /* DATA ********************************************************************/ - -fzero: - .long 0 // Floating point zero - .long 0 // Floating point zero - -__fltused: - .long 0x9875 - .intel_syntax noprefix
/* FUNCTIONS ***************************************************************/ _____
Modified: trunk/reactos/lib/rtl/i386/tan_asm.s --- trunk/reactos/lib/rtl/i386/tan_asm.s 2005-12-06 09:29:43 UTC (rev 19928) +++ trunk/reactos/lib/rtl/i386/tan_asm.s 2005-12-06 13:12:22 UTC (rev 19929) @@ -37,15 +37,6 @@
.globl _tan
- /* DATA ********************************************************************/ - -fzero: - .long 0 // Floating point zero - .long 0 // Floating point zero - -__fltused: - .long 0x9875 - .intel_syntax noprefix
/* FUNCTIONS ***************************************************************/ _____
Deleted: trunk/reactos/lib/rtl/i386/uallshr_asm.s --- trunk/reactos/lib/rtl/i386/uallshr_asm.s 2005-12-06 09:29:43 UTC (rev 19928) +++ trunk/reactos/lib/rtl/i386/uallshr_asm.s 2005-12-06 13:12:22 UTC (rev 19929) @@ -1,105 +0,0 @@
-/* - * COPYRIGHT: See COPYING in the top level directory - * PROJECT: ReactOS kernel - * PURPOSE: Run-Time Library - * FILE: lib/rtl/i386/ullshr.S - * PROGRAMER: Alex Ionescu (alex@relsoft.net) - * Eric Kohl (ekohl@rz-online.de) - * - * Copyright (C) 2002 Michael Ringgaard. - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. Neither the name of the project nor the names of its contributors - * may be used to endorse or promote products derived from this software - * without specific prior written permission. - - * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES// LOSS OF USE, DATA, OR PROFITS// OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - */ - -.globl __ullshr - - /* DATA ********************************************************************/ - -fzero: - .long 0 // Floating point zero - .long 0 // Floating point zero - -__fltused: - .long 0x9875 - -.intel_syntax noprefix - -/* FUNCTIONS ***************************************************************/ - -// -// ullshr - long shift right -// -// Purpose: -// Does a unsigned Long Shift Right -// Shifts a long right any number of bits. -// -// Entry: -// EDX:EAX - long value to be shifted -// CL - number of bits to shift by -// -// Exit: -// EDX:EAX - shifted value -// -// Uses: -// CL is destroyed. -// - -__aullshr: - -// -// Handle shifts of 64 bits or more (if shifting 64 bits or more, the result -// depends only on the high order bit of edx). -// - cmp cl,64 - jae short ..RETZERO - -// -// Handle shifts of between 0 and 31 bits -// - cmp cl, 32 - jae short ..MORE32 - shrd eax,edx,cl - shr edx,cl - ret - -// -// Handle shifts of between 32 and 63 bits -// -..MORE32: - mov eax,edx - xor edx,edx - and cl,31 - shr eax,cl - ret - -// -// return 0 in edx:eax -// -..RETZERO: - xor eax,eax - xor edx,edx - ret _____
Modified: trunk/reactos/lib/rtl/rtl.xml --- trunk/reactos/lib/rtl/rtl.xml 2005-12-06 09:29:43 UTC (rev 19928) +++ trunk/reactos/lib/rtl/rtl.xml 2005-12-06 13:12:22 UTC (rev 19929) @@ -17,6 +17,7 @@
<file>atan_asm.s</file> <file>aulldvrm_asm.s</file> <file>aullrem_asm.s</file> + <file>aullshr_asm.s</file> <file>ceil_asm.s</file> <file>chkstk_asm.s</file> <file>comparememory_asm.s</file> @@ -36,8 +37,7 @@ <file>prefetchmemory_asm.s</file> <file>sin_asm.s</file> <file>sqrt_asm.s</file> - <file>tan_asm.s</file> - <file>uallshr_asm.s</file> + <file>tan_asm.s</file> <file>zeromemory_asm.s</file> </directory> </if>
-
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