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Diffstat (limited to 'arch/c6x/lib/divi.S')
| -rw-r--r-- | arch/c6x/lib/divi.S | 41 |
1 files changed, 0 insertions, 41 deletions
diff --git a/arch/c6x/lib/divi.S b/arch/c6x/lib/divi.S deleted file mode 100644 index d1764ae0b519..000000000000 --- a/arch/c6x/lib/divi.S +++ /dev/null @@ -1,41 +0,0 @@ -;; SPDX-License-Identifier: GPL-2.0-or-later -;; Copyright 2010 Free Software Foundation, Inc. -;; Contributed by Bernd Schmidt <bernds@codesourcery.com>. -;; - -#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_divi) - call .s2 __c6xabi_divu -|| mv .d2 B3, B5 -|| cmpgt .l1 0, A4, A1 -|| cmpgt .l2 0, B4, B1 - - [A1] neg .l1 A4, A4 -|| [B1] neg .l2 B4, B4 -|| xor .s1x A1, B1, A1 - [A1] addkpc .s2 _divu_ret, B3, 4 -_divu_ret: - neg .l1 A4, A4 -|| mv .l2 B3,B5 -|| ret .s2 B5 - nop 5 -ENDPROC(__c6xabi_divi) |