| /* longlong.h -- definitions for mixed size 32/64 bit arithmetic. |
| * Note: I added some stuff for use with gnupg |
| * |
| * Copyright (C) 1991, 1992, 1993, 1994, 1996, 1998, |
| * 2000, 2001, 2002, 2003 Free Software Foundation, Inc. |
| * |
| * This file is free software; you can redistribute it and/or modify |
| * it under the terms of the GNU Library General Public License as published by |
| * the Free Software Foundation; either version 2 of the License, or (at your |
| * option) any later version. |
| * |
| * This file is distributed in the hope that it will be useful, but |
| * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY |
| * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Library General Public |
| * License for more details. |
| * |
| * You should have received a copy of the GNU Library General Public License |
| * along with this file; see the file COPYING.LIB. If not, write to |
| * the Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, |
| * MA 02111-1307, USA. */ |
| |
| #include <linux/count_zeros.h> |
| |
| /* You have to define the following before including this file: |
| * |
| * UWtype -- An unsigned type, default type for operations (typically a "word") |
| * UHWtype -- An unsigned type, at least half the size of UWtype. |
| * UDWtype -- An unsigned type, at least twice as large a UWtype |
| * W_TYPE_SIZE -- size in bits of UWtype |
| * |
| * SItype, USItype -- Signed and unsigned 32 bit types. |
| * DItype, UDItype -- Signed and unsigned 64 bit types. |
| * |
| * On a 32 bit machine UWtype should typically be USItype; |
| * on a 64 bit machine, UWtype should typically be UDItype. |
| */ |
| |
| #define __BITS4 (W_TYPE_SIZE / 4) |
| #define __ll_B ((UWtype) 1 << (W_TYPE_SIZE / 2)) |
| #define __ll_lowpart(t) ((UWtype) (t) & (__ll_B - 1)) |
| #define __ll_highpart(t) ((UWtype) (t) >> (W_TYPE_SIZE / 2)) |
| |
| /* This is used to make sure no undesirable sharing between different libraries |
| that use this file takes place. */ |
| #ifndef __MPN |
| #define __MPN(x) __##x |
| #endif |
| |
| /* Define auxiliary asm macros. |
| * |
| * 1) umul_ppmm(high_prod, low_prod, multipler, multiplicand) multiplies two |
| * UWtype integers MULTIPLER and MULTIPLICAND, and generates a two UWtype |
| * word product in HIGH_PROD and LOW_PROD. |
| * |
| * 2) __umulsidi3(a,b) multiplies two UWtype integers A and B, and returns a |
| * UDWtype product. This is just a variant of umul_ppmm. |
| |
| * 3) udiv_qrnnd(quotient, remainder, high_numerator, low_numerator, |
| * denominator) divides a UDWtype, composed by the UWtype integers |
| * HIGH_NUMERATOR and LOW_NUMERATOR, by DENOMINATOR and places the quotient |
| * in QUOTIENT and the remainder in REMAINDER. HIGH_NUMERATOR must be less |
| * than DENOMINATOR for correct operation. If, in addition, the most |
| * significant bit of DENOMINATOR must be 1, then the pre-processor symbol |
| * UDIV_NEEDS_NORMALIZATION is defined to 1. |
| * 4) sdiv_qrnnd(quotient, remainder, high_numerator, low_numerator, |
| * denominator). Like udiv_qrnnd but the numbers are signed. The quotient |
| * is rounded towards 0. |
| * |
| * 5) count_leading_zeros(count, x) counts the number of zero-bits from the |
| * msb to the first non-zero bit in the UWtype X. This is the number of |
| * steps X needs to be shifted left to set the msb. Undefined for X == 0, |
| * unless the symbol COUNT_LEADING_ZEROS_0 is defined to some value. |
| * |
| * 6) count_trailing_zeros(count, x) like count_leading_zeros, but counts |
| * from the least significant end. |
| * |
| * 7) add_ssaaaa(high_sum, low_sum, high_addend_1, low_addend_1, |
| * high_addend_2, low_addend_2) adds two UWtype integers, composed by |
| * HIGH_ADDEND_1 and LOW_ADDEND_1, and HIGH_ADDEND_2 and LOW_ADDEND_2 |
| * respectively. The result is placed in HIGH_SUM and LOW_SUM. Overflow |
| * (i.e. carry out) is not stored anywhere, and is lost. |
| * |
| * 8) sub_ddmmss(high_difference, low_difference, high_minuend, low_minuend, |
| * high_subtrahend, low_subtrahend) subtracts two two-word UWtype integers, |
| * composed by HIGH_MINUEND_1 and LOW_MINUEND_1, and HIGH_SUBTRAHEND_2 and |
| * LOW_SUBTRAHEND_2 respectively. The result is placed in HIGH_DIFFERENCE |
| * and LOW_DIFFERENCE. Overflow (i.e. carry out) is not stored anywhere, |
| * and is lost. |
| * |
| * If any of these macros are left undefined for a particular CPU, |
| * C macros are used. */ |
| |
| /* The CPUs come in alphabetical order below. |
| * |
| * Please add support for more CPUs here, or improve the current support |
| * for the CPUs below! */ |
| |
| #if defined(__GNUC__) && !defined(NO_ASM) |
| |
| /* We sometimes need to clobber "cc" with gcc2, but that would not be |
| understood by gcc1. Use cpp to avoid major code duplication. */ |
| #if __GNUC__ < 2 |
| #define __CLOBBER_CC |
| #define __AND_CLOBBER_CC |
| #else /* __GNUC__ >= 2 */ |
| #define __CLOBBER_CC : "cc" |
| #define __AND_CLOBBER_CC , "cc" |
| #endif /* __GNUC__ < 2 */ |
| |
| /*************************************** |
| ************** A29K ***************** |
| ***************************************/ |
| #if (defined(__a29k__) || defined(_AM29K)) && W_TYPE_SIZE == 32 |
| #define add_ssaaaa(sh, sl, ah, al, bh, bl) \ |
| __asm__ ("add %1,%4,%5\n" \ |
| "addc %0,%2,%3" \ |
| : "=r" ((USItype)(sh)), \ |
| "=&r" ((USItype)(sl)) \ |
| : "%r" ((USItype)(ah)), \ |
| "rI" ((USItype)(bh)), \ |
| "%r" ((USItype)(al)), \ |
| "rI" ((USItype)(bl))) |
| #define sub_ddmmss(sh, sl, ah, al, bh, bl) \ |
| __asm__ ("sub %1,%4,%5\n" \ |
| "subc %0,%2,%3" \ |
| : "=r" ((USItype)(sh)), \ |
| "=&r" ((USItype)(sl)) \ |
| : "r" ((USItype)(ah)), \ |
| "rI" ((USItype)(bh)), \ |
| "r" ((USItype)(al)), \ |
| "rI" ((USItype)(bl))) |
| #define umul_ppmm(xh, xl, m0, m1) \ |
| do { \ |
| USItype __m0 = (m0), __m1 = (m1); \ |
| __asm__ ("multiplu %0,%1,%2" \ |
| : "=r" ((USItype)(xl)) \ |
| : "r" (__m0), \ |
| "r" (__m1)); \ |
| __asm__ ("multmu %0,%1,%2" \ |
| : "=r" ((USItype)(xh)) \ |
| : "r" (__m0), \ |
| "r" (__m1)); \ |
| } while (0) |
| #define udiv_qrnnd(q, r, n1, n0, d) \ |
| __asm__ ("dividu %0,%3,%4" \ |
| : "=r" ((USItype)(q)), \ |
| "=q" ((USItype)(r)) \ |
| : "1" ((USItype)(n1)), \ |
| "r" ((USItype)(n0)), \ |
| "r" ((USItype)(d))) |
| #endif /* __a29k__ */ |
| |
| #if defined(__alpha) && W_TYPE_SIZE == 64 |
| #define umul_ppmm(ph, pl, m0, m1) \ |
| do { \ |
| UDItype __m0 = (m0), __m1 = (m1); \ |
| (ph) = __builtin_alpha_umulh(__m0, __m1); \ |
| (pl) = __m0 * __m1; \ |
| } while (0) |
| #define UMUL_TIME 46 |
| #ifndef LONGLONG_STANDALONE |
| #define udiv_qrnnd(q, r, n1, n0, d) \ |
| do { UDItype __r; \ |
| (q) = __udiv_qrnnd(&__r, (n1), (n0), (d)); \ |
| (r) = __r; \ |
| } while (0) |
| extern UDItype __udiv_qrnnd(UDItype *, UDItype, UDItype, UDItype); |
| #define UDIV_TIME 220 |
| #endif /* LONGLONG_STANDALONE */ |
| #endif /* __alpha */ |
| |
| /*************************************** |
| ************** ARM ****************** |
| ***************************************/ |
| #if defined(__arm__) && W_TYPE_SIZE == 32 |
| #define add_ssaaaa(sh, sl, ah, al, bh, bl) \ |
| __asm__ ("adds %1, %4, %5\n" \ |
| "adc %0, %2, %3" \ |
| : "=r" ((USItype)(sh)), \ |
| "=&r" ((USItype)(sl)) \ |
| : "%r" ((USItype)(ah)), \ |
| "rI" ((USItype)(bh)), \ |
| "%r" ((USItype)(al)), \ |
| "rI" ((USItype)(bl))) |
| #define sub_ddmmss(sh, sl, ah, al, bh, bl) \ |
| __asm__ ("subs %1, %4, %5\n" \ |
| "sbc %0, %2, %3" \ |
| : "=r" ((USItype)(sh)), \ |
| "=&r" ((USItype)(sl)) \ |
| : "r" ((USItype)(ah)), \ |
| "rI" ((USItype)(bh)), \ |
| "r" ((USItype)(al)), \ |
| "rI" ((USItype)(bl))) |
| #if defined __ARM_ARCH_2__ || defined __ARM_ARCH_3__ |
| #define umul_ppmm(xh, xl, a, b) \ |
| __asm__ ("%@ Inlined umul_ppmm\n" \ |
| "mov %|r0, %2, lsr #16 @ AAAA\n" \ |
| "mov %|r2, %3, lsr #16 @ BBBB\n" \ |
| "bic %|r1, %2, %|r0, lsl #16 @ aaaa\n" \ |
| "bic %0, %3, %|r2, lsl #16 @ bbbb\n" \ |
| "mul %1, %|r1, %|r2 @ aaaa * BBBB\n" \ |
| "mul %|r2, %|r0, %|r2 @ AAAA * BBBB\n" \ |
| "mul %|r1, %0, %|r1 @ aaaa * bbbb\n" \ |
| "mul %0, %|r0, %0 @ AAAA * bbbb\n" \ |
| "adds %|r0, %1, %0 @ central sum\n" \ |
| "addcs %|r2, %|r2, #65536\n" \ |
| "adds %1, %|r1, %|r0, lsl #16\n" \ |
| "adc %0, %|r2, %|r0, lsr #16" \ |
| : "=&r" ((USItype)(xh)), \ |
| "=r" ((USItype)(xl)) \ |
| : "r" ((USItype)(a)), \ |
| "r" ((USItype)(b)) \ |
| : "r0", "r1", "r2") |
| #else |
| #define umul_ppmm(xh, xl, a, b) \ |
| __asm__ ("%@ Inlined umul_ppmm\n" \ |
| "umull %r1, %r0, %r2, %r3" \ |
| : "=&r" ((USItype)(xh)), \ |
| "=&r" ((USItype)(xl)) \ |
| : "r" ((USItype)(a)), \ |
| "r" ((USItype)(b)) \ |
| : "r0", "r1") |
| #endif |
| #define UMUL_TIME 20 |
| #define UDIV_TIME 100 |
| #endif /* __arm__ */ |
| |
| /*************************************** |
| ************** CLIPPER ************** |
| ***************************************/ |
| #if defined(__clipper__) && W_TYPE_SIZE == 32 |
| #define umul_ppmm(w1, w0, u, v) \ |
| ({union {UDItype __ll; \ |
| struct {USItype __l, __h; } __i; \ |
| } __xx; \ |
| __asm__ ("mulwux %2,%0" \ |
| : "=r" (__xx.__ll) \ |
| : "%0" ((USItype)(u)), \ |
| "r" ((USItype)(v))); \ |
| (w1) = __xx.__i.__h; (w0) = __xx.__i.__l; }) |
| #define smul_ppmm(w1, w0, u, v) \ |
| ({union {DItype __ll; \ |
| struct {SItype __l, __h; } __i; \ |
| } __xx; \ |
| __asm__ ("mulwx %2,%0" \ |
| : "=r" (__xx.__ll) \ |
| : "%0" ((SItype)(u)), \ |
| "r" ((SItype)(v))); \ |
| (w1) = __xx.__i.__h; (w0) = __xx.__i.__l; }) |
| #define __umulsidi3(u, v) \ |
| ({UDItype __w; \ |
| __asm__ ("mulwux %2,%0" \ |
| : "=r" (__w) \ |
| : "%0" ((USItype)(u)), \ |
| "r" ((USItype)(v))); \ |
| __w; }) |
| #endif /* __clipper__ */ |
| |
| /*************************************** |
| ************** GMICRO *************** |
| ***************************************/ |
| #if defined(__gmicro__) && W_TYPE_SIZE == 32 |
| #define add_ssaaaa(sh, sl, ah, al, bh, bl) \ |
| __asm__ ("add.w %5,%1\n" \ |
| "addx %3,%0" \ |
| : "=g" ((USItype)(sh)), \ |
| "=&g" ((USItype)(sl)) \ |
| : "%0" ((USItype)(ah)), \ |
| "g" ((USItype)(bh)), \ |
| "%1" ((USItype)(al)), \ |
| "g" ((USItype)(bl))) |
| #define sub_ddmmss(sh, sl, ah, al, bh, bl) \ |
| __asm__ ("sub.w %5,%1\n" \ |
| "subx %3,%0" \ |
| : "=g" ((USItype)(sh)), \ |
| "=&g" ((USItype)(sl)) \ |
| : "0" ((USItype)(ah)), \ |
| "g" ((USItype)(bh)), \ |
| "1" ((USItype)(al)), \ |
| "g" ((USItype)(bl))) |
| #define umul_ppmm(ph, pl, m0, m1) \ |
| __asm__ ("mulx %3,%0,%1" \ |
| : "=g" ((USItype)(ph)), \ |
| "=r" ((USItype)(pl)) \ |
| : "%0" ((USItype)(m0)), \ |
| "g" ((USItype)(m1))) |
| #define udiv_qrnnd(q, r, nh, nl, d) \ |
| __asm__ ("divx %4,%0,%1" \ |
| : "=g" ((USItype)(q)), \ |
| "=r" ((USItype)(r)) \ |
| : "1" ((USItype)(nh)), \ |
| "0" ((USItype)(nl)), \ |
| "g" ((USItype)(d))) |
| #endif |
| |
| /*************************************** |
| ************** HPPA ***************** |
| ***************************************/ |
| #if defined(__hppa) && W_TYPE_SIZE == 32 |
| #define add_ssaaaa(sh, sl, ah, al, bh, bl) \ |
| __asm__ ("add %4,%5,%1\n" \ |
| "addc %2,%3,%0" \ |
| : "=r" ((USItype)(sh)), \ |
| "=&r" ((USItype)(sl)) \ |
| : "%rM" ((USItype)(ah)), \ |
| "rM" ((USItype)(bh)), \ |
| "%rM" ((USItype)(al)), \ |
| "rM" ((USItype)(bl))) |
| #define sub_ddmmss(sh, sl, ah, al, bh, bl) \ |
| __asm__ ("sub %4,%5,%1\n" \ |
| "subb %2,%3,%0" \ |
| : "=r" ((USItype)(sh)), \ |
| "=&r" ((USItype)(sl)) \ |
| : "rM" ((USItype)(ah)), \ |
| "rM" ((USItype)(bh)), \ |
| "rM" ((USItype)(al)), \ |
| "rM" ((USItype)(bl))) |
| #if 0 && defined(_PA_RISC1_1) |
| /* xmpyu uses floating point register which is not allowed in Linux kernel. */ |
| #define umul_ppmm(wh, wl, u, v) \ |
| do { \ |
| union {UDItype __ll; \ |
| struct {USItype __h, __l; } __i; \ |
| } __xx; \ |
| __asm__ ("xmpyu %1,%2,%0" \ |
| : "=*f" (__xx.__ll) \ |
| : "*f" ((USItype)(u)), \ |
| "*f" ((USItype)(v))); \ |
| (wh) = __xx.__i.__h; \ |
| (wl) = __xx.__i.__l; \ |
| } while (0) |
| #define UMUL_TIME 8 |
| #define UDIV_TIME 60 |
| #else |
| #define UMUL_TIME 40 |
| #define UDIV_TIME 80 |
| #endif |
| #if 0 /* #ifndef LONGLONG_STANDALONE */ |
| #define udiv_qrnnd(q, r, n1, n0, d) \ |
| do { USItype __r; \ |
| (q) = __udiv_qrnnd(&__r, (n1), (n0), (d)); \ |
| (r) = __r; \ |
| } while (0) |
| extern USItype __udiv_qrnnd(); |
| #endif /* LONGLONG_STANDALONE */ |
| #endif /* hppa */ |
| |
| /*************************************** |
| ************** I370 ***************** |
| ***************************************/ |
| #if (defined(__i370__) || defined(__mvs__)) && W_TYPE_SIZE == 32 |
| #define umul_ppmm(xh, xl, m0, m1) \ |
| do { \ |
| union {UDItype __ll; \ |
| struct {USItype __h, __l; } __i; \ |
| } __xx; \ |
| USItype __m0 = (m0), __m1 = (m1); \ |
| __asm__ ("mr %0,%3" \ |
| : "=r" (__xx.__i.__h), \ |
| "=r" (__xx.__i.__l) \ |
| : "%1" (__m0), \ |
| "r" (__m1)); \ |
| (xh) = __xx.__i.__h; (xl) = __xx.__i.__l; \ |
| (xh) += ((((SItype) __m0 >> 31) & __m1) \ |
| + (((SItype) __m1 >> 31) & __m0)); \ |
| } while (0) |
| #define smul_ppmm(xh, xl, m0, m1) \ |
| do { \ |
| union {DItype __ll; \ |
| struct {USItype __h, __l; } __i; \ |
| } __xx; \ |
| __asm__ ("mr %0,%3" \ |
| : "=r" (__xx.__i.__h), \ |
| "=r" (__xx.__i.__l) \ |
| : "%1" (m0), \ |
| "r" (m1)); \ |
| (xh) = __xx.__i.__h; (xl) = __xx.__i.__l; \ |
| } while (0) |
| #define sdiv_qrnnd(q, r, n1, n0, d) \ |
| do { \ |
| union {DItype __ll; \ |
| struct {USItype __h, __l; } __i; \ |
| } __xx; \ |
| __xx.__i.__h = n1; __xx.__i.__l = n0; \ |
| __asm__ ("dr %0,%2" \ |
| : "=r" (__xx.__ll) \ |
| : "0" (__xx.__ll), "r" (d)); \ |
| (q) = __xx.__i.__l; (r) = __xx.__i.__h; \ |
| } while (0) |
| #endif |
| |
| /*************************************** |
| ************** I386 ***************** |
| ***************************************/ |
| #undef __i386__ |
| #if (defined(__i386__) || defined(__i486__)) && W_TYPE_SIZE == 32 |
| #define add_ssaaaa(sh, sl, ah, al, bh, bl) \ |
| __asm__ ("addl %5,%1\n" \ |
| "adcl %3,%0" \ |
| : "=r" ((USItype)(sh)), \ |
| "=&r" ((USItype)(sl)) \ |
| : "%0" ((USItype)(ah)), \ |
| "g" ((USItype)(bh)), \ |
| "%1" ((USItype)(al)), \ |
| "g" ((USItype)(bl))) |
| #define sub_ddmmss(sh, sl, ah, al, bh, bl) \ |
| __asm__ ("subl %5,%1\n" \ |
| "sbbl %3,%0" \ |
| : "=r" ((USItype)(sh)), \ |
| "=&r" ((USItype)(sl)) \ |
| : "0" ((USItype)(ah)), \ |
| "g" ((USItype)(bh)), \ |
| "1" ((USItype)(al)), \ |
| "g" ((USItype)(bl))) |
| #define umul_ppmm(w1, w0, u, v) \ |
| __asm__ ("mull %3" \ |
| : "=a" ((USItype)(w0)), \ |
| "=d" ((USItype)(w1)) \ |
| : "%0" ((USItype)(u)), \ |
| "rm" ((USItype)(v))) |
| #define udiv_qrnnd(q, r, n1, n0, d) \ |
| __asm__ ("divl %4" \ |
| : "=a" ((USItype)(q)), \ |
| "=d" ((USItype)(r)) \ |
| : "0" ((USItype)(n0)), \ |
| "1" ((USItype)(n1)), \ |
| "rm" ((USItype)(d))) |
| #ifndef UMUL_TIME |
| #define UMUL_TIME 40 |
| #endif |
| #ifndef UDIV_TIME |
| #define UDIV_TIME 40 |
| #endif |
| #endif /* 80x86 */ |
| |
| /*************************************** |
| ************** I860 ***************** |
| ***************************************/ |
| #if defined(__i860__) && W_TYPE_SIZE == 32 |
| #define rshift_rhlc(r, h, l, c) \ |
| __asm__ ("shr %3,r0,r0\n" \ |
| "shrd %1,%2,%0" \ |
| "=r" (r) : "r" (h), "r" (l), "rn" (c)) |
| #endif /* i860 */ |
| |
| /*************************************** |
| ************** I960 ***************** |
| ***************************************/ |
| #if defined(__i960__) && W_TYPE_SIZE == 32 |
| #define add_ssaaaa(sh, sl, ah, al, bh, bl) \ |
| __asm__ ("cmpo 1,0\n" \ |
| "addc %5,%4,%1\n" \ |
| "addc %3,%2,%0" \ |
| : "=r" ((USItype)(sh)), \ |
| "=&r" ((USItype)(sl)) \ |
| : "%dI" ((USItype)(ah)), \ |
| "dI" ((USItype)(bh)), \ |
| "%dI" ((USItype)(al)), \ |
| "dI" ((USItype)(bl))) |
| #define sub_ddmmss(sh, sl, ah, al, bh, bl) \ |
| __asm__ ("cmpo 0,0\n" \ |
| "subc %5,%4,%1\n" \ |
| "subc %3,%2,%0" \ |
| : "=r" ((USItype)(sh)), \ |
| "=&r" ((USItype)(sl)) \ |
| : "dI" ((USItype)(ah)), \ |
| "dI" ((USItype)(bh)), \ |
| "dI" ((USItype)(al)), \ |
| "dI" ((USItype)(bl))) |
| #define umul_ppmm(w1, w0, u, v) \ |
| ({union {UDItype __ll; \ |
| struct {USItype __l, __h; } __i; \ |
| } __xx; \ |
| __asm__ ("emul %2,%1,%0" \ |
| : "=d" (__xx.__ll) \ |
| : "%dI" ((USItype)(u)), \ |
| "dI" ((USItype)(v))); \ |
| (w1) = __xx.__i.__h; (w0) = __xx.__i.__l; }) |
| #define __umulsidi3(u, v) \ |
| ({UDItype __w; \ |
| __asm__ ("emul %2,%1,%0" \ |
| : "=d" (__w) \ |
| : "%dI" ((USItype)(u)), \ |
| "dI" ((USItype)(v))); \ |
| __w; }) |
| #define udiv_qrnnd(q, r, nh, nl, d) \ |
| do { \ |
| union {UDItype __ll; \ |
| struct {USItype __l, __h; } __i; \ |
| } __nn; \ |
| __nn.__i.__h = (nh); __nn.__i.__l = (nl); \ |
| __asm__ ("ediv %d,%n,%0" \ |
| : "=d" (__rq.__ll) \ |
| : "dI" (__nn.__ll), \ |
| "dI" ((USItype)(d))); \ |
| (r) = __rq.__i.__l; (q) = __rq.__i.__h; \ |
| } while (0) |
| #if defined(__i960mx) /* what is the proper symbol to test??? */ |
| #define rshift_rhlc(r, h, l, c) \ |
| do { \ |
| union {UDItype __ll; \ |
| struct {USItype __l, __h; } __i; \ |
| } __nn; \ |
| __nn.__i.__h = (h); __nn.__i.__l = (l); \ |
| __asm__ ("shre %2,%1,%0" \ |
| : "=d" (r) : "dI" (__nn.__ll), "dI" (c)); \ |
| } |
| #endif /* i960mx */ |
| #endif /* i960 */ |
| |
| /*************************************** |
| ************** 68000 **************** |
| ***************************************/ |
| #if (defined(__mc68000__) || defined(__mc68020__) || defined(__NeXT__) || defined(mc68020)) && W_TYPE_SIZE == 32 |
| #define add_ssaaaa(sh, sl, ah, al, bh, bl) \ |
| __asm__ ("add%.l %5,%1\n" \ |
| "addx%.l %3,%0" \ |
| : "=d" ((USItype)(sh)), \ |
| "=&d" ((USItype)(sl)) \ |
| : "%0" ((USItype)(ah)), \ |
| "d" ((USItype)(bh)), \ |
| "%1" ((USItype)(al)), \ |
| "g" ((USItype)(bl))) |
| #define sub_ddmmss(sh, sl, ah, al, bh, bl) \ |
| __asm__ ("sub%.l %5,%1\n" \ |
| "subx%.l %3,%0" \ |
| : "=d" ((USItype)(sh)), \ |
| "=&d" ((USItype)(sl)) \ |
| : "0" ((USItype)(ah)), \ |
| "d" ((USItype)(bh)), \ |
| "1" ((USItype)(al)), \ |
| "g" ((USItype)(bl))) |
| #if (defined(__mc68020__) || defined(__NeXT__) || defined(mc68020)) |
| #define umul_ppmm(w1, w0, u, v) \ |
| __asm__ ("mulu%.l %3,%1:%0" \ |
| : "=d" ((USItype)(w0)), \ |
| "=d" ((USItype)(w1)) \ |
| : "%0" ((USItype)(u)), \ |
| "dmi" ((USItype)(v))) |
| #define UMUL_TIME 45 |
| #define udiv_qrnnd(q, r, n1, n0, d) \ |
| __asm__ ("divu%.l %4,%1:%0" \ |
| : "=d" ((USItype)(q)), \ |
| "=d" ((USItype)(r)) \ |
| : "0" ((USItype)(n0)), \ |
| "1" ((USItype)(n1)), \ |
| "dmi" ((USItype)(d))) |
| #define UDIV_TIME 90 |
| #define sdiv_qrnnd(q, r, n1, n0, d) \ |
| __asm__ ("divs%.l %4,%1:%0" \ |
| : "=d" ((USItype)(q)), \ |
| "=d" ((USItype)(r)) \ |
| : "0" ((USItype)(n0)), \ |
| "1" ((USItype)(n1)), \ |
| "dmi" ((USItype)(d))) |
| #else /* not mc68020 */ |
| #define umul_ppmm(xh, xl, a, b) \ |
| do { USItype __umul_tmp1, __umul_tmp2; \ |
| __asm__ ("| Inlined umul_ppmm\n" \ |
| "move%.l %5,%3\n" \ |
| "move%.l %2,%0\n" \ |
| "move%.w %3,%1\n" \ |
| "swap %3\n" \ |
| "swap %0\n" \ |
| "mulu %2,%1\n" \ |
| "mulu %3,%0\n" \ |
| "mulu %2,%3\n" \ |
| "swap %2\n" \ |
| "mulu %5,%2\n" \ |
| "add%.l %3,%2\n" \ |
| "jcc 1f\n" \ |
| "add%.l %#0x10000,%0\n" \ |
| "1: move%.l %2,%3\n" \ |
| "clr%.w %2\n" \ |
| "swap %2\n" \ |
| "swap %3\n" \ |
| "clr%.w %3\n" \ |
| "add%.l %3,%1\n" \ |
| "addx%.l %2,%0\n" \ |
| "| End inlined umul_ppmm" \ |
| : "=&d" ((USItype)(xh)), "=&d" ((USItype)(xl)), \ |
| "=d" (__umul_tmp1), "=&d" (__umul_tmp2) \ |
| : "%2" ((USItype)(a)), "d" ((USItype)(b))); \ |
| } while (0) |
| #define UMUL_TIME 100 |
| #define UDIV_TIME 400 |
| #endif /* not mc68020 */ |
| #endif /* mc68000 */ |
| |
| /*************************************** |
| ************** 88000 **************** |
| ***************************************/ |
| #if defined(__m88000__) && W_TYPE_SIZE == 32 |
| #define add_ssaaaa(sh, sl, ah, al, bh, bl) \ |
| __asm__ ("addu.co %1,%r4,%r5\n" \ |
| "addu.ci %0,%r2,%r3" \ |
| : "=r" ((USItype)(sh)), \ |
| "=&r" ((USItype)(sl)) \ |
| : "%rJ" ((USItype)(ah)), \ |
| "rJ" ((USItype)(bh)), \ |
| "%rJ" ((USItype)(al)), \ |
| "rJ" ((USItype)(bl))) |
| #define sub_ddmmss(sh, sl, ah, al, bh, bl) \ |
| __asm__ ("subu.co %1,%r4,%r5\n" \ |
| "subu.ci %0,%r2,%r3" \ |
| : "=r" ((USItype)(sh)), \ |
| "=&r" ((USItype)(sl)) \ |
| : "rJ" ((USItype)(ah)), \ |
| "rJ" ((USItype)(bh)), \ |
| "rJ" ((USItype)(al)), \ |
| "rJ" ((USItype)(bl))) |
| #if defined(__m88110__) |
| #define umul_ppmm(wh, wl, u, v) \ |
| do { \ |
| union {UDItype __ll; \ |
| struct {USItype __h, __l; } __i; \ |
| } __x; \ |
| __asm__ ("mulu.d %0,%1,%2" : "=r" (__x.__ll) : "r" (u), "r" (v)); \ |
| (wh) = __x.__i.__h; \ |
| (wl) = __x.__i.__l; \ |
| } while (0) |
| #define udiv_qrnnd(q, r, n1, n0, d) \ |
| ({union {UDItype __ll; \ |
| struct {USItype __h, __l; } __i; \ |
| } __x, __q; \ |
| __x.__i.__h = (n1); __x.__i.__l = (n0); \ |
| __asm__ ("divu.d %0,%1,%2" \ |
| : "=r" (__q.__ll) : "r" (__x.__ll), "r" (d)); \ |
| (r) = (n0) - __q.__l * (d); (q) = __q.__l; }) |
| #define UMUL_TIME 5 |
| #define UDIV_TIME 25 |
| #else |
| #define UMUL_TIME 17 |
| #define UDIV_TIME 150 |
| #endif /* __m88110__ */ |
| #endif /* __m88000__ */ |
| |
| /*************************************** |
| ************** MIPS ***************** |
| ***************************************/ |
| #if defined(__mips__) && W_TYPE_SIZE == 32 |
| #if (__GNUC__ >= 5) || (__GNUC__ >= 4 && __GNUC_MINOR__ >= 4) |
| #define umul_ppmm(w1, w0, u, v) \ |
| do { \ |
| UDItype __ll = (UDItype)(u) * (v); \ |
| w1 = __ll >> 32; \ |
| w0 = __ll; \ |
| } while (0) |
| #elif __GNUC__ > 2 || __GNUC_MINOR__ >= 7 |
| #define umul_ppmm(w1, w0, u, v) \ |
| __asm__ ("multu %2,%3" \ |
| : "=l" ((USItype)(w0)), \ |
| "=h" ((USItype)(w1)) \ |
| : "d" ((USItype)(u)), \ |
| "d" ((USItype)(v))) |
| #else |
| #define umul_ppmm(w1, w0, u, v) \ |
| __asm__ ("multu %2,%3\n" \ |
| "mflo %0\n" \ |
| "mfhi %1" \ |
| : "=d" ((USItype)(w0)), \ |
| "=d" ((USItype)(w1)) \ |
| : "d" ((USItype)(u)), \ |
| "d" ((USItype)(v))) |
| #endif |
| #define UMUL_TIME 10 |
| #define UDIV_TIME 100 |
| #endif /* __mips__ */ |
| |
| /*************************************** |
| ************** MIPS/64 ************** |
| ***************************************/ |
| #if (defined(__mips) && __mips >= 3) && W_TYPE_SIZE == 64 |
| #if defined(__mips_isa_rev) && __mips_isa_rev >= 6 |
| /* |
| * GCC ends up emitting a __multi3 intrinsic call for MIPS64r6 with the plain C |
| * code below, so we special case MIPS64r6 until the compiler can do better. |
| */ |
| #define umul_ppmm(w1, w0, u, v) \ |
| do { \ |
| __asm__ ("dmulu %0,%1,%2" \ |
| : "=d" ((UDItype)(w0)) \ |
| : "d" ((UDItype)(u)), \ |
| "d" ((UDItype)(v))); \ |
| __asm__ ("dmuhu %0,%1,%2" \ |
| : "=d" ((UDItype)(w1)) \ |
| : "d" ((UDItype)(u)), \ |
| "d" ((UDItype)(v))); \ |
| } while (0) |
| #elif (__GNUC__ >= 5) || (__GNUC__ >= 4 && __GNUC_MINOR__ >= 4) |
| #define umul_ppmm(w1, w0, u, v) \ |
| do { \ |
| typedef unsigned int __ll_UTItype __attribute__((mode(TI))); \ |
| __ll_UTItype __ll = (__ll_UTItype)(u) * (v); \ |
| w1 = __ll >> 64; \ |
| w0 = __ll; \ |
| } while (0) |
| #elif __GNUC__ > 2 || __GNUC_MINOR__ >= 7 |
| #define umul_ppmm(w1, w0, u, v) \ |
| __asm__ ("dmultu %2,%3" \ |
| : "=l" ((UDItype)(w0)), \ |
| "=h" ((UDItype)(w1)) \ |
| : "d" ((UDItype)(u)), \ |
| "d" ((UDItype)(v))) |
| #else |
| #define umul_ppmm(w1, w0, u, v) \ |
| __asm__ ("dmultu %2,%3\n" \ |
| "mflo %0\n" \ |
| "mfhi %1" \ |
| : "=d" ((UDItype)(w0)), \ |
| "=d" ((UDItype)(w1)) \ |
| : "d" ((UDItype)(u)), \ |
| "d" ((UDItype)(v))) |
| #endif |
| #define UMUL_TIME 20 |
| #define UDIV_TIME 140 |
| #endif /* __mips__ */ |
| |
| /*************************************** |
| ************** 32000 **************** |
| ***************************************/ |
| #if defined(__ns32000__) && W_TYPE_SIZE == 32 |
| #define umul_ppmm(w1, w0, u, v) \ |
| ({union {UDItype __ll; \ |
| struct {USItype __l, __h; } __i; \ |
| } __xx; \ |
| __asm__ ("meid %2,%0" \ |
| : "=g" (__xx.__ll) \ |
| : "%0" ((USItype)(u)), \ |
| "g" ((USItype)(v))); \ |
| (w1) = __xx.__i.__h; (w0) = __xx.__i.__l; }) |
| #define __umulsidi3(u, v) \ |
| ({UDItype __w; \ |
| __asm__ ("meid %2,%0" \ |
| : "=g" (__w) \ |
| : "%0" ((USItype)(u)), \ |
| "g" ((USItype)(v))); \ |
| __w; }) |
| #define udiv_qrnnd(q, r, n1, n0, d) \ |
| ({union {UDItype __ll; \ |
| struct {USItype __l, __h; } __i; \ |
| } __xx; \ |
| __xx.__i.__h = (n1); __xx.__i.__l = (n0); \ |
| __asm__ ("deid %2,%0" \ |
| : "=g" (__xx.__ll) \ |
| : "0" (__xx.__ll), \ |
| "g" ((USItype)(d))); \ |
| (r) = __xx.__i.__l; (q) = __xx.__i.__h; }) |
| #endif /* __ns32000__ */ |
| |
| /*************************************** |
| ************** PPC ****************** |
| ***************************************/ |
| #if (defined(_ARCH_PPC) || defined(_IBMR2)) && W_TYPE_SIZE == 32 |
| #define add_ssaaaa(sh, sl, ah, al, bh, bl) \ |
| do { \ |
| if (__builtin_constant_p(bh) && (bh) == 0) \ |
| __asm__ ("{a%I4|add%I4c} %1,%3,%4\n\t{aze|addze} %0,%2" \ |
| : "=r" ((USItype)(sh)), \ |
| "=&r" ((USItype)(sl)) \ |
| : "%r" ((USItype)(ah)), \ |
| "%r" ((USItype)(al)), \ |
| "rI" ((USItype)(bl))); \ |
| else if (__builtin_constant_p(bh) && (bh) == ~(USItype) 0) \ |
| __asm__ ("{a%I4|add%I4c} %1,%3,%4\n\t{ame|addme} %0,%2" \ |
| : "=r" ((USItype)(sh)), \ |
| "=&r" ((USItype)(sl)) \ |
| : "%r" ((USItype)(ah)), \ |
| "%r" ((USItype)(al)), \ |
| "rI" ((USItype)(bl))); \ |
| else \ |
| __asm__ ("{a%I5|add%I5c} %1,%4,%5\n\t{ae|adde} %0,%2,%3" \ |
| : "=r" ((USItype)(sh)), \ |
| "=&r" ((USItype)(sl)) \ |
| : "%r" ((USItype)(ah)), \ |
| "r" ((USItype)(bh)), \ |
| "%r" ((USItype)(al)), \ |
| "rI" ((USItype)(bl))); \ |
| } while (0) |
| #define sub_ddmmss(sh, sl, ah, al, bh, bl) \ |
| do { \ |
| if (__builtin_constant_p(ah) && (ah) == 0) \ |
| __asm__ ("{sf%I3|subf%I3c} %1,%4,%3\n\t{sfze|subfze} %0,%2" \ |
| : "=r" ((USItype)(sh)), \ |
| "=&r" ((USItype)(sl)) \ |
| : "r" ((USItype)(bh)), \ |
| "rI" ((USItype)(al)), \ |
| "r" ((USItype)(bl))); \ |
| else if (__builtin_constant_p(ah) && (ah) == ~(USItype) 0) \ |
| __asm__ ("{sf%I3|subf%I3c} %1,%4,%3\n\t{sfme|subfme} %0,%2" \ |
| : "=r" ((USItype)(sh)), \ |
| "=&r" ((USItype)(sl)) \ |
| : "r" ((USItype)(bh)), \ |
| "rI" ((USItype)(al)), \ |
| "r" ((USItype)(bl))); \ |
| else if (__builtin_constant_p(bh) && (bh) == 0) \ |
| __asm__ ("{sf%I3|subf%I3c} %1,%4,%3\n\t{ame|addme} %0,%2" \ |
| : "=r" ((USItype)(sh)), \ |
| "=&r" ((USItype)(sl)) \ |
| : "r" ((USItype)(ah)), \ |
| "rI" ((USItype)(al)), \ |
| "r" ((USItype)(bl))); \ |
| else if (__builtin_constant_p(bh) && (bh) == ~(USItype) 0) \ |
| __asm__ ("{sf%I3|subf%I3c} %1,%4,%3\n\t{aze|addze} %0,%2" \ |
| : "=r" ((USItype)(sh)), \ |
| "=&r" ((USItype)(sl)) \ |
| : "r" ((USItype)(ah)), \ |
| "rI" ((USItype)(al)), \ |
| "r" ((USItype)(bl))); \ |
| else \ |
| __asm__ ("{sf%I4|subf%I4c} %1,%5,%4\n\t{sfe|subfe} %0,%3,%2" \ |
| : "=r" ((USItype)(sh)), \ |
| "=&r" ((USItype)(sl)) \ |
| : "r" ((USItype)(ah)), \ |
| "r" ((USItype)(bh)), \ |
| "rI" ((USItype)(al)), \ |
| "r" ((USItype)(bl))); \ |
| } while (0) |
| #if defined(_ARCH_PPC) |
| #define umul_ppmm(ph, pl, m0, m1) \ |
| do { \ |
| USItype __m0 = (m0), __m1 = (m1); \ |
| __asm__ ("mulhwu %0,%1,%2" \ |
| : "=r" ((USItype) ph) \ |
| : "%r" (__m0), \ |
| "r" (__m1)); \ |
| (pl) = __m0 * __m1; \ |
| } while (0) |
| #define UMUL_TIME 15 |
| #define smul_ppmm(ph, pl, m0, m1) \ |
| do { \ |
| SItype __m0 = (m0), __m1 = (m1); \ |
| __asm__ ("mulhw %0,%1,%2" \ |
| : "=r" ((SItype) ph) \ |
| : "%r" (__m0), \ |
| "r" (__m1)); \ |
| (pl) = __m0 * __m1; \ |
| } while (0) |
| #define SMUL_TIME 14 |
| #define UDIV_TIME 120 |
| #else |
| #define umul_ppmm(xh, xl, m0, m1) \ |
| do { \ |
| USItype __m0 = (m0), __m1 = (m1); \ |
| __asm__ ("mul %0,%2,%3" \ |
| : "=r" ((USItype)(xh)), \ |
| "=q" ((USItype)(xl)) \ |
| : "r" (__m0), \ |
| "r" (__m1)); \ |
| (xh) += ((((SItype) __m0 >> 31) & __m1) \ |
| + (((SItype) __m1 >> 31) & __m0)); \ |
| } while (0) |
| #define UMUL_TIME 8 |
| #define smul_ppmm(xh, xl, m0, m1) \ |
| __asm__ ("mul %0,%2,%3" \ |
| : "=r" ((SItype)(xh)), \ |
| "=q" ((SItype)(xl)) \ |
| : "r" (m0), \ |
| "r" (m1)) |
| #define SMUL_TIME 4 |
| #define sdiv_qrnnd(q, r, nh, nl, d) \ |
| __asm__ ("div %0,%2,%4" \ |
| : "=r" ((SItype)(q)), "=q" ((SItype)(r)) \ |
| : "r" ((SItype)(nh)), "1" ((SItype)(nl)), "r" ((SItype)(d))) |
| #define UDIV_TIME 100 |
| #endif |
| #endif /* Power architecture variants. */ |
| |
| /*************************************** |
| ************** PYR ****************** |
| ***************************************/ |
| #if defined(__pyr__) && W_TYPE_SIZE == 32 |
| #define add_ssaaaa(sh, sl, ah, al, bh, bl) \ |
| __asm__ ("addw %5,%1\n" \ |
| "addwc %3,%0" \ |
| : "=r" ((USItype)(sh)), \ |
| "=&r" ((USItype)(sl)) \ |
| : "%0" ((USItype)(ah)), \ |
| "g" ((USItype)(bh)), \ |
| "%1" ((USItype)(al)), \ |
| "g" ((USItype)(bl))) |
| #define sub_ddmmss(sh, sl, ah, al, bh, bl) \ |
| __asm__ ("subw %5,%1\n" \ |
| "subwb %3,%0" \ |
| : "=r" ((USItype)(sh)), \ |
| "=&r" ((USItype)(sl)) \ |
| : "0" ((USItype)(ah)), \ |
| "g" ((USItype)(bh)), \ |
| "1" ((USItype)(al)), \ |
| "g" ((USItype)(bl))) |
| /* This insn works on Pyramids with AP, XP, or MI CPUs, but not with SP. */ |
| #define umul_ppmm(w1, w0, u, v) \ |
| ({union {UDItype __ll; \ |
| struct {USItype __h, __l; } __i; \ |
| } __xx; \ |
| __asm__ ("movw %1,%R0\n" \ |
| "uemul %2,%0" \ |
| : "=&r" (__xx.__ll) \ |
| : "g" ((USItype) (u)), \ |
| "g" ((USItype)(v))); \ |
| (w1) = __xx.__i.__h; (w0) = __xx.__i.__l; }) |
| #endif /* __pyr__ */ |
| |
| /*************************************** |
| ************** RT/ROMP ************** |
| ***************************************/ |
| #if defined(__ibm032__) /* RT/ROMP */ && W_TYPE_SIZE == 32 |
| #define add_ssaaaa(sh, sl, ah, al, bh, bl) \ |
| __asm__ ("a %1,%5\n" \ |
| "ae %0,%3" \ |
| : "=r" ((USItype)(sh)), \ |
| "=&r" ((USItype)(sl)) \ |
| : "%0" ((USItype)(ah)), \ |
| "r" ((USItype)(bh)), \ |
| "%1" ((USItype)(al)), \ |
| "r" ((USItype)(bl))) |
| #define sub_ddmmss(sh, sl, ah, al, bh, bl) \ |
| __asm__ ("s %1,%5\n" \ |
| "se %0,%3" \ |
| : "=r" ((USItype)(sh)), \ |
| "=&r" ((USItype)(sl)) \ |
| : "0" ((USItype)(ah)), \ |
| "r" ((USItype)(bh)), \ |
| "1" ((USItype)(al)), \ |
| "r" ((USItype)(bl))) |
| #define umul_ppmm(ph, pl, m0, m1) \ |
| do { \ |
| USItype __m0 = (m0), __m1 = (m1); \ |
| __asm__ ( \ |
| "s r2,r2\n" \ |
| "mts r10,%2\n" \ |
| "m r2,%3\n" \ |
| "m r2,%3\n" \ |
| "m r2,%3\n" \ |
| "m r2,%3\n" \ |
| "m r2,%3\n" \ |
| "m r2,%3\n" \ |
| "m r2,%3\n" \ |
| "m r2,%3\n" \ |
| "m r2,%3\n" \ |
| "m r2,%3\n" \ |
| "m r2,%3\n" \ |
| "m r2,%3\n" \ |
| "m r2,%3\n" \ |
| "m r2,%3\n" \ |
| "m r2,%3\n" \ |
| "m r2,%3\n" \ |
| "cas %0,r2,r0\n" \ |
| "mfs r10,%1" \ |
| : "=r" ((USItype)(ph)), \ |
| "=r" ((USItype)(pl)) \ |
| : "%r" (__m0), \ |
| "r" (__m1) \ |
| : "r2"); \ |
| (ph) += ((((SItype) __m0 >> 31) & __m1) \ |
| + (((SItype) __m1 >> 31) & __m0)); \ |
| } while (0) |
| #define UMUL_TIME 20 |
| #define UDIV_TIME 200 |
| #endif /* RT/ROMP */ |
| |
| /*************************************** |
| ************** SH2 ****************** |
| ***************************************/ |
| #if (defined(__sh2__) || defined(__sh3__) || defined(__SH4__)) \ |
| && W_TYPE_SIZE == 32 |
| #define umul_ppmm(w1, w0, u, v) \ |
| __asm__ ( \ |
| "dmulu.l %2,%3\n" \ |
| "sts macl,%1\n" \ |
| "sts mach,%0" \ |
| : "=r" ((USItype)(w1)), \ |
| "=r" ((USItype)(w0)) \ |
| : "r" ((USItype)(u)), \ |
| "r" ((USItype)(v)) \ |
| : "macl", "mach") |
| #define UMUL_TIME 5 |
| #endif |
| |
| /*************************************** |
| ************** SPARC **************** |
| ***************************************/ |
| #if defined(__sparc__) && W_TYPE_SIZE == 32 |
| #define add_ssaaaa(sh, sl, ah, al, bh, bl) \ |
| __asm__ ("addcc %r4,%5,%1\n" \ |
| "addx %r2,%3,%0" \ |
| : "=r" ((USItype)(sh)), \ |
| "=&r" ((USItype)(sl)) \ |
| : "%rJ" ((USItype)(ah)), \ |
| "rI" ((USItype)(bh)), \ |
| "%rJ" ((USItype)(al)), \ |
| "rI" ((USItype)(bl)) \ |
| __CLOBBER_CC) |
| #define sub_ddmmss(sh, sl, ah, al, bh, bl) \ |
| __asm__ ("subcc %r4,%5,%1\n" \ |
| "subx %r2,%3,%0" \ |
| : "=r" ((USItype)(sh)), \ |
| "=&r" ((USItype)(sl)) \ |
| : "rJ" ((USItype)(ah)), \ |
| "rI" ((USItype)(bh)), \ |
| "rJ" ((USItype)(al)), \ |
| "rI" ((USItype)(bl)) \ |
| __CLOBBER_CC) |
| #if defined(__sparc_v8__) |
| /* Don't match immediate range because, 1) it is not often useful, |
| 2) the 'I' flag thinks of the range as a 13 bit signed interval, |
| while we want to match a 13 bit interval, sign extended to 32 bits, |
| but INTERPRETED AS UNSIGNED. */ |
| #define umul_ppmm(w1, w0, u, v) \ |
| __asm__ ("umul %2,%3,%1;rd %%y,%0" \ |
| : "=r" ((USItype)(w1)), \ |
| "=r" ((USItype)(w0)) \ |
| : "r" ((USItype)(u)), \ |
| "r" ((USItype)(v))) |
| #define UMUL_TIME 5 |
| #ifndef SUPERSPARC /* SuperSPARC's udiv only handles 53 bit dividends */ |
| #define udiv_qrnnd(q, r, n1, n0, d) \ |
| do { \ |
| USItype __q; \ |
| __asm__ ("mov %1,%%y;nop;nop;nop;udiv %2,%3,%0" \ |
| : "=r" ((USItype)(__q)) \ |
| : "r" ((USItype)(n1)), \ |
| "r" ((USItype)(n0)), \ |
| "r" ((USItype)(d))); \ |
| (r) = (n0) - __q * (d); \ |
| (q) = __q; \ |
| } while (0) |
| #define UDIV_TIME 25 |
| #endif /* SUPERSPARC */ |
| #else /* ! __sparc_v8__ */ |
| #if defined(__sparclite__) |
| /* This has hardware multiply but not divide. It also has two additional |
| instructions scan (ffs from high bit) and divscc. */ |
| #define umul_ppmm(w1, w0, u, v) \ |
| __asm__ ("umul %2,%3,%1;rd %%y,%0" \ |
| : "=r" ((USItype)(w1)), \ |
| "=r" ((USItype)(w0)) \ |
| : "r" ((USItype)(u)), \ |
| "r" ((USItype)(v))) |
| #define UMUL_TIME 5 |
| #define udiv_qrnnd(q, r, n1, n0, d) \ |
| __asm__ ("! Inlined udiv_qrnnd\n" \ |
| "wr %%g0,%2,%%y ! Not a delayed write for sparclite\n" \ |
| "tst %%g0\n" \ |
| "divscc %3,%4,%%g1\n" \ |
| "divscc %%g1,%4,%%g1\n" \ |
| "divscc %%g1,%4,%%g1\n" \ |
| "divscc %%g1,%4,%%g1\n" \ |
| "divscc %%g1,%4,%%g1\n" \ |
| "divscc %%g1,%4,%%g1\n" \ |
| "divscc %%g1,%4,%%g1\n" \ |
| "divscc %%g1,%4,%%g1\n" \ |
| "divscc %%g1,%4,%%g1\n" \ |
| "divscc %%g1,%4,%%g1\n" \ |
| "divscc %%g1,%4,%%g1\n" \ |
| "divscc %%g1,%4,%%g1\n" \ |
| "divscc %%g1,%4,%%g1\n" \ |
| "divscc %%g1,%4,%%g1\n" \ |
| "divscc %%g1,%4,%%g1\n" \ |
| "divscc %%g1,%4,%%g1\n" \ |
| "divscc %%g1,%4,%%g1\n" \ |
| "divscc %%g1,%4,%%g1\n" \ |
| "divscc %%g1,%4,%%g1\n" \ |
| "divscc %%g1,%4,%%g1\n" \ |
| "divscc %%g1,%4,%%g1\n" \ |
| "divscc %%g1,%4,%%g1\n" \ |
| "divscc %%g1,%4,%%g1\n" \ |
| "divscc %%g1,%4,%%g1\n" \ |
| "divscc %%g1,%4,%%g1\n" \ |
| "divscc %%g1,%4,%%g1\n" \ |
| "divscc %%g1,%4,%%g1\n" \ |
| "divscc %%g1,%4,%%g1\n" \ |
| "divscc %%g1,%4,%%g1\n" \ |
| "divscc %%g1,%4,%%g1\n" \ |
| "divscc %%g1,%4,%%g1\n" \ |
| "divscc %%g1,%4,%0\n" \ |
| "rd %%y,%1\n" \ |
| "bl,a 1f\n" \ |
| "add %1,%4,%1\n" \ |
| "1: ! End of inline udiv_qrnnd" \ |
| : "=r" ((USItype)(q)), \ |
| "=r" ((USItype)(r)) \ |
| : "r" ((USItype)(n1)), \ |
| "r" ((USItype)(n0)), \ |
| "rI" ((USItype)(d)) \ |
| : "%g1" __AND_CLOBBER_CC) |
| #define UDIV_TIME 37 |
| #endif /* __sparclite__ */ |
| #endif /* __sparc_v8__ */ |
| /* Default to sparc v7 versions of umul_ppmm and udiv_qrnnd. */ |
| #ifndef umul_ppmm |
| #define umul_ppmm(w1, w0, u, v) \ |
| __asm__ ("! Inlined umul_ppmm\n" \ |
| "wr %%g0,%2,%%y ! SPARC has 0-3 delay insn after a wr\n" \ |
| "sra %3,31,%%g2 ! Don't move this insn\n" \ |
| "and %2,%%g2,%%g2 ! Don't move this insn\n" \ |
| "andcc %%g0,0,%%g1 ! Don't move this insn\n" \ |
| "mulscc %%g1,%3,%%g1\n" \ |
| "mulscc %%g1,%3,%%g1\n" \ |
| "mulscc %%g1,%3,%%g1\n" \ |
| "mulscc %%g1,%3,%%g1\n" \ |
| "mulscc %%g1,%3,%%g1\n" \ |
| "mulscc %%g1,%3,%%g1\n" \ |
| "mulscc %%g1,%3,%%g1\n" \ |
| "mulscc %%g1,%3,%%g1\n" \ |
| "mulscc %%g1,%3,%%g1\n" \ |
| "mulscc %%g1,%3,%%g1\n" \ |
| "mulscc %%g1,%3,%%g1\n" \ |
| "mulscc %%g1,%3,%%g1\n" \ |
| "mulscc %%g1,%3,%%g1\n" \ |
| "mulscc %%g1,%3,%%g1\n" \ |
| "mulscc %%g1,%3,%%g1\n" \ |
| "mulscc %%g1,%3,%%g1\n" \ |
| "mulscc %%g1,%3,%%g1\n" \ |
| "mulscc %%g1,%3,%%g1\n" \ |
| "mulscc %%g1,%3,%%g1\n" \ |
| "mulscc %%g1,%3,%%g1\n" \ |
| "mulscc %%g1,%3,%%g1\n" \ |
| "mulscc %%g1,%3,%%g1\n" \ |
| "mulscc %%g1,%3,%%g1\n" \ |
| "mulscc %%g1,%3,%%g1\n" \ |
| "mulscc %%g1,%3,%%g1\n" \ |
| "mulscc %%g1,%3,%%g1\n" \ |
| "mulscc %%g1,%3,%%g1\n" \ |
| "mulscc %%g1,%3,%%g1\n" \ |
| "mulscc %%g1,%3,%%g1\n" \ |
| "mulscc %%g1,%3,%%g1\n" \ |
| "mulscc %%g1,%3,%%g1\n" \ |
| "mulscc %%g1,%3,%%g1\n" \ |
| "mulscc %%g1,0,%%g1\n" \ |
| "add %%g1,%%g2,%0\n" \ |
| "rd %%y,%1" \ |
| : "=r" ((USItype)(w1)), \ |
| "=r" ((USItype)(w0)) \ |
| : "%rI" ((USItype)(u)), \ |
| "r" ((USItype)(v)) \ |
| : "%g1", "%g2" __AND_CLOBBER_CC) |
| #define UMUL_TIME 39 /* 39 instructions */ |
| /* It's quite necessary to add this much assembler for the sparc. |
| The default udiv_qrnnd (in C) is more than 10 times slower! */ |
| #define udiv_qrnnd(q, r, n1, n0, d) \ |
| __asm__ ("! Inlined udiv_qrnnd\n\t" \ |
| "mov 32,%%g1\n\t" \ |
| "subcc %1,%2,%%g0\n\t" \ |
| "1: bcs 5f\n\t" \ |
| "addxcc %0,%0,%0 ! shift n1n0 and a q-bit in lsb\n\t" \ |
| "sub %1,%2,%1 ! this kills msb of n\n\t" \ |
| "addx %1,%1,%1 ! so this can't give carry\n\t" \ |
| "subcc %%g1,1,%%g1\n\t" \ |
| "2: bne 1b\n\t" \ |
| "subcc %1,%2,%%g0\n\t" \ |
| "bcs 3f\n\t" \ |
| "addxcc %0,%0,%0 ! shift n1n0 and a q-bit in lsb\n\t" \ |
| "b 3f\n\t" \ |
| "sub %1,%2,%1 ! this kills msb of n\n\t" \ |
| "4: sub %1,%2,%1\n\t" \ |
| "5: addxcc %1,%1,%1\n\t" \ |
| "bcc 2b\n\t" \ |
| "subcc %%g1,1,%%g1\n\t" \ |
| "! Got carry from n. Subtract next step to cancel this carry.\n\t" \ |
| "bne 4b\n\t" \ |
| "addcc %0,%0,%0 ! shift n1n0 and a 0-bit in lsb\n\t" \ |
| "sub %1,%2,%1\n\t" \ |
| "3: xnor %0,0,%0\n\t" \ |
| "! End of inline udiv_qrnnd\n" \ |
| : "=&r" ((USItype)(q)), \ |
| "=&r" ((USItype)(r)) \ |
| : "r" ((USItype)(d)), \ |
| "1" ((USItype)(n1)), \ |
| "0" ((USItype)(n0)) : "%g1", "cc") |
| #define UDIV_TIME (3+7*32) /* 7 instructions/iteration. 32 iterations. */ |
| #endif |
| #endif /* __sparc__ */ |
| |
| /*************************************** |
| ************** VAX ****************** |
| ***************************************/ |
| #if defined(__vax__) && W_TYPE_SIZE == 32 |
| #define add_ssaaaa(sh, sl, ah, al, bh, bl) \ |
| __asm__ ("addl2 %5,%1\n" \ |
| "adwc %3,%0" \ |
| : "=g" ((USItype)(sh)), \ |
| "=&g" ((USItype)(sl)) \ |
| : "%0" ((USItype)(ah)), \ |
| "g" ((USItype)(bh)), \ |
| "%1" ((USItype)(al)), \ |
| "g" ((USItype)(bl))) |
| #define sub_ddmmss(sh, sl, ah, al, bh, bl) \ |
| __asm__ ("subl2 %5,%1\n" \ |
| "sbwc %3,%0" \ |
| : "=g" ((USItype)(sh)), \ |
| "=&g" ((USItype)(sl)) \ |
| : "0" ((USItype)(ah)), \ |
| "g" ((USItype)(bh)), \ |
| "1" ((USItype)(al)), \ |
| "g" ((USItype)(bl))) |
| #define umul_ppmm(xh, xl, m0, m1) \ |
| do { \ |
| union {UDItype __ll; \ |
| struct {USItype __l, __h; } __i; \ |
| } __xx; \ |
| USItype __m0 = (m0), __m1 = (m1); \ |
| __asm__ ("emul %1,%2,$0,%0" \ |
| : "=g" (__xx.__ll) \ |
| : "g" (__m0), \ |
| "g" (__m1)); \ |
| (xh) = __xx.__i.__h; (xl) = __xx.__i.__l; \ |
| (xh) += ((((SItype) __m0 >> 31) & __m1) \ |
| + (((SItype) __m1 >> 31) & __m0)); \ |
| } while (0) |
| #define sdiv_qrnnd(q, r, n1, n0, d) \ |
| do { \ |
| union {DItype __ll; \ |
| struct {SItype __l, __h; } __i; \ |
| } __xx; \ |
| __xx.__i.__h = n1; __xx.__i.__l = n0; \ |
| __asm__ ("ediv %3,%2,%0,%1" \ |
| : "=g" (q), "=g" (r) \ |
| : "g" (__xx.__ll), "g" (d)); \ |
| } while (0) |
| #endif /* __vax__ */ |
| |
| /*************************************** |
| ************** Z8000 **************** |
| ***************************************/ |
| #if defined(__z8000__) && W_TYPE_SIZE == 16 |
| #define add_ssaaaa(sh, sl, ah, al, bh, bl) \ |
| __asm__ ("add %H1,%H5\n\tadc %H0,%H3" \ |
| : "=r" ((unsigned int)(sh)), \ |
| "=&r" ((unsigned int)(sl)) \ |
| : "%0" ((unsigned int)(ah)), \ |
| "r" ((unsigned int)(bh)), \ |
| "%1" ((unsigned int)(al)), \ |
| "rQR" ((unsigned int)(bl))) |
| #define sub_ddmmss(sh, sl, ah, al, bh, bl) \ |
| __asm__ ("sub %H1,%H5\n\tsbc %H0,%H3" \ |
| : "=r" ((unsigned int)(sh)), \ |
| "=&r" ((unsigned int)(sl)) \ |
| : "0" ((unsigned int)(ah)), \ |
| "r" ((unsigned int)(bh)), \ |
| "1" ((unsigned int)(al)), \ |
| "rQR" ((unsigned int)(bl))) |
| #define umul_ppmm(xh, xl, m0, m1) \ |
| do { \ |
| union {long int __ll; \ |
| struct {unsigned int __h, __l; } __i; \ |
| } __xx; \ |
| unsigned int __m0 = (m0), __m1 = (m1); \ |
| __asm__ ("mult %S0,%H3" \ |
| : "=r" (__xx.__i.__h), \ |
| "=r" (__xx.__i.__l) \ |
| : "%1" (__m0), \ |
| "rQR" (__m1)); \ |
| (xh) = __xx.__i.__h; (xl) = __xx.__i.__l; \ |
| (xh) += ((((signed int) __m0 >> 15) & __m1) \ |
| + (((signed int) __m1 >> 15) & __m0)); \ |
| } while (0) |
| #endif /* __z8000__ */ |
| |
| #endif /* __GNUC__ */ |
| |
| /*************************************** |
| *********** Generic Versions ******** |
| ***************************************/ |
| #if !defined(umul_ppmm) && defined(__umulsidi3) |
| #define umul_ppmm(ph, pl, m0, m1) \ |
| { \ |
| UDWtype __ll = __umulsidi3(m0, m1); \ |
| ph = (UWtype) (__ll >> W_TYPE_SIZE); \ |
| pl = (UWtype) __ll; \ |
| } |
| #endif |
| |
| #if !defined(__umulsidi3) |
| #define __umulsidi3(u, v) \ |
| ({UWtype __hi, __lo; \ |
| umul_ppmm(__hi, __lo, u, v); \ |
| ((UDWtype) __hi << W_TYPE_SIZE) | __lo; }) |
| #endif |
| |
| /* If this machine has no inline assembler, use C macros. */ |
| |
| #if !defined(add_ssaaaa) |
| #define add_ssaaaa(sh, sl, ah, al, bh, bl) \ |
| do { \ |
| UWtype __x; \ |
| __x = (al) + (bl); \ |
| (sh) = (ah) + (bh) + (__x < (al)); \ |
| (sl) = __x; \ |
| } while (0) |
| #endif |
| |
| #if !defined(sub_ddmmss) |
| #define sub_ddmmss(sh, sl, ah, al, bh, bl) \ |
| do { \ |
| UWtype __x; \ |
| __x = (al) - (bl); \ |
| (sh) = (ah) - (bh) - (__x > (al)); \ |
| (sl) = __x; \ |
| } while (0) |
| #endif |
| |
| #if !defined(umul_ppmm) |
| #define umul_ppmm(w1, w0, u, v) \ |
| do { \ |
| UWtype __x0, __x1, __x2, __x3; \ |
| UHWtype __ul, __vl, __uh, __vh; \ |
| UWtype __u = (u), __v = (v); \ |
| \ |
| __ul = __ll_lowpart(__u); \ |
| __uh = __ll_highpart(__u); \ |
| __vl = __ll_lowpart(__v); \ |
| __vh = __ll_highpart(__v); \ |
| \ |
| __x0 = (UWtype) __ul * __vl; \ |
| __x1 = (UWtype) __ul * __vh; \ |
| __x2 = (UWtype) __uh * __vl; \ |
| __x3 = (UWtype) __uh * __vh; \ |
| \ |
| __x1 += __ll_highpart(__x0);/* this can't give carry */ \ |
| __x1 += __x2; /* but this indeed can */ \ |
| if (__x1 < __x2) /* did we get it? */ \ |
| __x3 += __ll_B; /* yes, add it in the proper pos. */ \ |
| \ |
| (w1) = __x3 + __ll_highpart(__x1); \ |
| (w0) = (__ll_lowpart(__x1) << W_TYPE_SIZE/2) + __ll_lowpart(__x0); \ |
| } while (0) |
| #endif |
| |
| #if !defined(umul_ppmm) |
| #define smul_ppmm(w1, w0, u, v) \ |
| do { \ |
| UWtype __w1; \ |
| UWtype __m0 = (u), __m1 = (v); \ |
| umul_ppmm(__w1, w0, __m0, __m1); \ |
| (w1) = __w1 - (-(__m0 >> (W_TYPE_SIZE - 1)) & __m1) \ |
| - (-(__m1 >> (W_TYPE_SIZE - 1)) & __m0); \ |
| } while (0) |
| #endif |
| |
| /* Define this unconditionally, so it can be used for debugging. */ |
| #define __udiv_qrnnd_c(q, r, n1, n0, d) \ |
| do { \ |
| UWtype __d1, __d0, __q1, __q0, __r1, __r0, __m; \ |
| __d1 = __ll_highpart(d); \ |
| __d0 = __ll_lowpart(d); \ |
| \ |
| __r1 = (n1) % __d1; \ |
| __q1 = (n1) / __d1; \ |
| __m = (UWtype) __q1 * __d0; \ |
| __r1 = __r1 * __ll_B | __ll_highpart(n0); \ |
| if (__r1 < __m) { \ |
| __q1--, __r1 += (d); \ |
| if (__r1 >= (d)) /* i.e. we didn't get carry when adding to __r1 */ \ |
| if (__r1 < __m) \ |
| __q1--, __r1 += (d); \ |
| } \ |
| __r1 -= __m; \ |
| \ |
| __r0 = __r1 % __d1; \ |
| __q0 = __r1 / __d1; \ |
| __m = (UWtype) __q0 * __d0; \ |
| __r0 = __r0 * __ll_B | __ll_lowpart(n0); \ |
| if (__r0 < __m) { \ |
| __q0--, __r0 += (d); \ |
| if (__r0 >= (d)) \ |
| if (__r0 < __m) \ |
| __q0--, __r0 += (d); \ |
| } \ |
| __r0 -= __m; \ |
| \ |
| (q) = (UWtype) __q1 * __ll_B | __q0; \ |
| (r) = __r0; \ |
| } while (0) |
| |
| /* If the processor has no udiv_qrnnd but sdiv_qrnnd, go through |
| __udiv_w_sdiv (defined in libgcc or elsewhere). */ |
| #if !defined(udiv_qrnnd) && defined(sdiv_qrnnd) |
| #define udiv_qrnnd(q, r, nh, nl, d) \ |
| do { \ |
| UWtype __r; \ |
| (q) = __MPN(udiv_w_sdiv) (&__r, nh, nl, d); \ |
| (r) = __r; \ |
| } while (0) |
| #endif |
| |
| /* If udiv_qrnnd was not defined for this processor, use __udiv_qrnnd_c. */ |
| #if !defined(udiv_qrnnd) |
| #define UDIV_NEEDS_NORMALIZATION 1 |
| #define udiv_qrnnd __udiv_qrnnd_c |
| #endif |
| |
| #ifndef UDIV_NEEDS_NORMALIZATION |
| #define UDIV_NEEDS_NORMALIZATION 0 |
| #endif |