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Diffstat (limited to 'arch/c6x/lib/remi.S')
| -rw-r--r-- | arch/c6x/lib/remi.S | 64 |
1 files changed, 0 insertions, 64 deletions
diff --git a/arch/c6x/lib/remi.S b/arch/c6x/lib/remi.S deleted file mode 100644 index 6f2ca18c3f98..000000000000 --- a/arch/c6x/lib/remi.S +++ /dev/null @@ -1,64 +0,0 @@ -;; Copyright 2010 Free Software Foundation, Inc. -;; Contributed by Bernd Schmidt <bernds@codesourcery.com>. -;; -;; This program is free software; you can redistribute it and/or modify -;; it under the terms of the GNU General Public License as published by -;; the Free Software Foundation; either version 2 of the License, or -;; (at your option) any later version. -;; -;; This program 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 General Public License for more details. -;; -;; You should have received a copy of the GNU General Public License -;; along with this program; if not, write to the Free Software -;; Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. - -#include <linux/linkage.h> - - ;; ABI considerations for the divide functions - ;; The following registers are call-used: - ;; __c6xabi_divi A0,A1,A2,A4,A6,B0,B1,B2,B4,B5 - ;; __c6xabi_divu A0,A1,A2,A4,A6,B0,B1,B2,B4 - ;; __c6xabi_remi A1,A2,A4,A5,A6,B0,B1,B2,B4 - ;; __c6xabi_remu A1,A4,A5,A7,B0,B1,B2,B4 - ;; - ;; In our implementation, divu and remu are leaf functions, - ;; while both divi and remi call into divu. - ;; A0 is not clobbered by any of the functions. - ;; divu does not clobber B2 either, which is taken advantage of - ;; in remi. - ;; divi uses B5 to hold the original return address during - ;; the call to divu. - ;; remi uses B2 and A5 to hold the input values during the - ;; call to divu. It stores B3 in on the stack. - - .text - -ENTRY(__c6xabi_remi) - stw .d2t2 B3, *B15--[2] -|| cmpgt .l1 0, A4, A1 -|| cmpgt .l2 0, B4, B2 -|| mv .s1 A4, A5 -|| call .s2 __c6xabi_divu - - [A1] neg .l1 A4, A4 -|| [B2] neg .l2 B4, B4 -|| xor .s2x B2, A1, B0 -|| mv .d2 B4, B2 - - [B0] addkpc .s2 _divu_ret_1, B3, 1 - [!B0] addkpc .s2 _divu_ret_2, B3, 1 - nop 2 -_divu_ret_1: - neg .l1 A4, A4 -_divu_ret_2: - ldw .d2t2 *++B15[2], B3 - - mpy32 .m1x A4, B2, A6 - nop 3 - ret .s2 B3 - sub .l1 A5, A6, A4 - nop 4 -ENDPROC(__c6xabi_remi) |
