diff options
Diffstat (limited to 'ANDROID_3.4.5/arch/sparc/lib/memset.S')
-rw-r--r-- | ANDROID_3.4.5/arch/sparc/lib/memset.S | 202 |
1 files changed, 0 insertions, 202 deletions
diff --git a/ANDROID_3.4.5/arch/sparc/lib/memset.S b/ANDROID_3.4.5/arch/sparc/lib/memset.S deleted file mode 100644 index 99c017be..00000000 --- a/ANDROID_3.4.5/arch/sparc/lib/memset.S +++ /dev/null @@ -1,202 +0,0 @@ -/* linux/arch/sparc/lib/memset.S: Sparc optimized memset, bzero and clear_user code - * Copyright (C) 1991,1996 Free Software Foundation - * Copyright (C) 1996,1997 Jakub Jelinek (jj@sunsite.mff.cuni.cz) - * Copyright (C) 1996 David S. Miller (davem@caip.rutgers.edu) - * - * Returns 0, if ok, and number of bytes not yet set if exception - * occurs and we were called as clear_user. - */ - -#include <asm/ptrace.h> - -/* Work around cpp -rob */ -#define ALLOC #alloc -#define EXECINSTR #execinstr -#define EX(x,y,a,b) \ -98: x,y; \ - .section .fixup,ALLOC,EXECINSTR; \ - .align 4; \ -99: ba 30f; \ - a, b, %o0; \ - .section __ex_table,ALLOC; \ - .align 4; \ - .word 98b, 99b; \ - .text; \ - .align 4 - -#define EXT(start,end,handler) \ - .section __ex_table,ALLOC; \ - .align 4; \ - .word start, 0, end, handler; \ - .text; \ - .align 4 - -/* Please don't change these macros, unless you change the logic - * in the .fixup section below as well. - * Store 64 bytes at (BASE + OFFSET) using value SOURCE. */ -#define ZERO_BIG_BLOCK(base, offset, source) \ - std source, [base + offset + 0x00]; \ - std source, [base + offset + 0x08]; \ - std source, [base + offset + 0x10]; \ - std source, [base + offset + 0x18]; \ - std source, [base + offset + 0x20]; \ - std source, [base + offset + 0x28]; \ - std source, [base + offset + 0x30]; \ - std source, [base + offset + 0x38]; - -#define ZERO_LAST_BLOCKS(base, offset, source) \ - std source, [base - offset - 0x38]; \ - std source, [base - offset - 0x30]; \ - std source, [base - offset - 0x28]; \ - std source, [base - offset - 0x20]; \ - std source, [base - offset - 0x18]; \ - std source, [base - offset - 0x10]; \ - std source, [base - offset - 0x08]; \ - std source, [base - offset - 0x00]; - - .text - .align 4 - - .globl __bzero_begin -__bzero_begin: - - .globl __bzero - .globl memset - .globl __memset_start, __memset_end -__memset_start: -memset: - and %o1, 0xff, %g3 - sll %g3, 8, %g2 - or %g3, %g2, %g3 - sll %g3, 16, %g2 - or %g3, %g2, %g3 - b 1f - mov %o2, %o1 -3: - cmp %o2, 3 - be 2f - EX(stb %g3, [%o0], sub %o1, 0) - - cmp %o2, 2 - be 2f - EX(stb %g3, [%o0 + 0x01], sub %o1, 1) - - EX(stb %g3, [%o0 + 0x02], sub %o1, 2) -2: - sub %o2, 4, %o2 - add %o1, %o2, %o1 - b 4f - sub %o0, %o2, %o0 - -__bzero: - mov %g0, %g3 -1: - cmp %o1, 7 - bleu 7f - andcc %o0, 3, %o2 - - bne 3b -4: - andcc %o0, 4, %g0 - - be 2f - mov %g3, %g2 - - EX(st %g3, [%o0], sub %o1, 0) - sub %o1, 4, %o1 - add %o0, 4, %o0 -2: - andcc %o1, 0xffffff80, %o3 ! Now everything is 8 aligned and o1 is len to run - be 9f - andcc %o1, 0x78, %o2 -10: - ZERO_BIG_BLOCK(%o0, 0x00, %g2) - subcc %o3, 128, %o3 - ZERO_BIG_BLOCK(%o0, 0x40, %g2) -11: - EXT(10b, 11b, 20f) - bne 10b - add %o0, 128, %o0 - - orcc %o2, %g0, %g0 -9: - be 13f - andcc %o1, 7, %o1 - - srl %o2, 1, %o3 - set 13f, %o4 - sub %o4, %o3, %o4 - jmp %o4 - add %o0, %o2, %o0 - -12: - ZERO_LAST_BLOCKS(%o0, 0x48, %g2) - ZERO_LAST_BLOCKS(%o0, 0x08, %g2) -13: - be 8f - andcc %o1, 4, %g0 - - be 1f - andcc %o1, 2, %g0 - - EX(st %g3, [%o0], and %o1, 7) - add %o0, 4, %o0 -1: - be 1f - andcc %o1, 1, %g0 - - EX(sth %g3, [%o0], and %o1, 3) - add %o0, 2, %o0 -1: - bne,a 8f - EX(stb %g3, [%o0], and %o1, 1) -8: - retl - clr %o0 -7: - be 13b - orcc %o1, 0, %g0 - - be 0f -8: - add %o0, 1, %o0 - subcc %o1, 1, %o1 - bne 8b - EX(stb %g3, [%o0 - 1], add %o1, 1) -0: - retl - clr %o0 -__memset_end: - - .section .fixup,#alloc,#execinstr - .align 4 -20: - cmp %g2, 8 - bleu 1f - and %o1, 0x7f, %o1 - sub %g2, 9, %g2 - add %o3, 64, %o3 -1: - sll %g2, 3, %g2 - add %o3, %o1, %o0 - b 30f - sub %o0, %g2, %o0 -21: - mov 8, %o0 - and %o1, 7, %o1 - sub %o0, %g2, %o0 - sll %o0, 3, %o0 - b 30f - add %o0, %o1, %o0 -30: -/* %o4 is faulting address, %o5 is %pc where fault occurred */ - save %sp, -104, %sp - mov %i5, %o0 - mov %i7, %o1 - call lookup_fault - mov %i4, %o2 - ret - restore - - .globl __bzero_end -__bzero_end: |