diff options
Diffstat (limited to 'sys/gnu/i386/fpemul/fpu_arith.c')
| -rw-r--r-- | sys/gnu/i386/fpemul/fpu_arith.c | 233 |
1 files changed, 0 insertions, 233 deletions
diff --git a/sys/gnu/i386/fpemul/fpu_arith.c b/sys/gnu/i386/fpemul/fpu_arith.c deleted file mode 100644 index e8fa93f..0000000 --- a/sys/gnu/i386/fpemul/fpu_arith.c +++ /dev/null @@ -1,233 +0,0 @@ -/* - * fpu_arith.c - * - * Code to implement the FPU register/register arithmetic instructions - * - * - * Copyright (C) 1992,1993,1994 - * W. Metzenthen, 22 Parker St, Ormond, Vic 3163, - * Australia. E-mail billm@vaxc.cc.monash.edu.au - * All rights reserved. - * - * This copyright notice covers the redistribution and use of the - * FPU emulator developed by W. Metzenthen. It covers only its use - * in the 386BSD, FreeBSD and NetBSD operating systems. Any other - * use is not permitted under this copyright. - * - * 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 include information specifying - * that source code for the emulator is freely available and include - * either: - * a) an offer to provide the source code for a nominal distribution - * fee, or - * b) list at least two alternative methods whereby the source - * can be obtained, e.g. a publically accessible bulletin board - * and an anonymous ftp site from which the software can be - * downloaded. - * 3. All advertising materials specifically mentioning features or use of - * this emulator must acknowledge that it was developed by W. Metzenthen. - * 4. The name of W. Metzenthen may not be used to endorse or promote - * products derived from this software without specific prior written - * permission. - * - * THIS SOFTWARE IS PROVIDED ``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 - * W. METZENTHEN 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. - * - * - * The purpose of this copyright, based upon the Berkeley copyright, is to - * ensure that the covered software remains freely available to everyone. - * - * The software (with necessary differences) is also available, but under - * the terms of the GNU copyleft, for the Linux operating system and for - * the djgpp ms-dos extender. - * - * W. Metzenthen June 1994. - * - * - * $FreeBSD$ - * - */ - - - - -#include <sys/param.h> -#include <sys/proc.h> -#include <machine/pcb.h> - -#include <gnu/i386/fpemul/fpu_emu.h> -#include <gnu/i386/fpemul/fpu_system.h> - - -void -fadd__() -{ - /* fadd st,st(i) */ - reg_add(FPU_st0_ptr, &st(FPU_rm), FPU_st0_ptr, control_word); -} - - -void -fmul__() -{ - /* fmul st,st(i) */ - reg_mul(FPU_st0_ptr, &st(FPU_rm), FPU_st0_ptr, control_word); -} - - - -void -fsub__() -{ - /* fsub st,st(i) */ - reg_sub(FPU_st0_ptr, &st(FPU_rm), FPU_st0_ptr, control_word); -} - - -void -fsubr_() -{ - /* fsubr st,st(i) */ - reg_sub(&st(FPU_rm), FPU_st0_ptr, FPU_st0_ptr, control_word); -} - - -void -fdiv__() -{ - /* fdiv st,st(i) */ - reg_div(FPU_st0_ptr, &st(FPU_rm), FPU_st0_ptr, control_word); -} - - -void -fdivr_() -{ - /* fdivr st,st(i) */ - reg_div(&st(FPU_rm), FPU_st0_ptr, FPU_st0_ptr, control_word); -} - - - -void -fadd_i() -{ - /* fadd st(i),st */ - reg_add(FPU_st0_ptr, &st(FPU_rm), &st(FPU_rm), control_word); -} - - -void -fmul_i() -{ - /* fmul st(i),st */ - reg_mul(&st(FPU_rm), FPU_st0_ptr, &st(FPU_rm), control_word); -} - - -void -fsubri() -{ - /* fsubr st(i),st */ - /* This is the sense of the 80486 manual reg_sub(&st(FPU_rm), - * FPU_st0_ptr, &st(FPU_rm), control_word); */ - reg_sub(FPU_st0_ptr, &st(FPU_rm), &st(FPU_rm), control_word); -} - - -void -fsub_i() -{ - /* fsub st(i),st */ - /* This is the sense of the 80486 manual reg_sub(FPU_st0_ptr, - * &st(FPU_rm), &st(FPU_rm), control_word); */ - reg_sub(&st(FPU_rm), FPU_st0_ptr, &st(FPU_rm), control_word); -} - - -void -fdivri() -{ - /* fdivr st(i),st */ - reg_div(FPU_st0_ptr, &st(FPU_rm), &st(FPU_rm), control_word); -} - - -void -fdiv_i() -{ - /* fdiv st(i),st */ - reg_div(&st(FPU_rm), FPU_st0_ptr, &st(FPU_rm), control_word); -} - - - -void -faddp_() -{ - /* faddp st(i),st */ - reg_add(FPU_st0_ptr, &st(FPU_rm), &st(FPU_rm), control_word); - pop(); -} - - -void -fmulp_() -{ - /* fmulp st(i),st */ - reg_mul(&st(FPU_rm), FPU_st0_ptr, &st(FPU_rm), control_word); - pop(); -} - - - -void -fsubrp() -{ - /* fsubrp st(i),st */ - /* This is the sense of the 80486 manual reg_sub(&st(FPU_rm), - * FPU_st0_ptr, &st(FPU_rm), control_word); */ - reg_sub(FPU_st0_ptr, &st(FPU_rm), &st(FPU_rm), control_word); - pop(); -} - - -void -fsubp_() -{ - /* fsubp st(i),st */ - /* This is the sense of the 80486 manual reg_sub(FPU_st0_ptr, - * &st(FPU_rm), &st(FPU_rm), control_word); */ - reg_sub(&st(FPU_rm), FPU_st0_ptr, &st(FPU_rm), control_word); - pop(); -} - - -void -fdivrp() -{ - /* fdivrp st(i),st */ - reg_div(FPU_st0_ptr, &st(FPU_rm), &st(FPU_rm), control_word); - pop(); -} - - -void -fdivp_() -{ - /* fdivp st(i),st */ - reg_div(&st(FPU_rm), FPU_st0_ptr, &st(FPU_rm), control_word); - pop(); -} |
