mirror of
https://github.com/team-infusion-developers/android_kernel_samsung_msm8976.git
synced 2024-10-20 10:28:24 +00:00
1da177e4c3
Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
195 lines
3.3 KiB
ArmAsm
195 lines
3.3 KiB
ArmAsm
/* -*- mode: asm -*-
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* Due to problems while transferring data I've put these routines as assembly
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* code.
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* Since I'm no PPC assembler guru, the code is just the assembler version of
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int oktag_to_io(long *paddr,long *addr,long len)
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{
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long *addr2 = addr;
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for(len=(len+sizeof(long)-1)/sizeof(long);len--;)
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*paddr = *addr2++;
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return addr2 - addr;
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}
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int oktag_from_io(long *addr,long *paddr,long len)
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{
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long *addr2 = addr;
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for(len=(len+sizeof(long)-1)/sizeof(long);len--;)
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*addr2++ = *paddr;
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return addr2 - addr;
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}
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* assembled using gcc -O2 -S, with two exception catch points where data
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* is moved to/from the IO register.
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*/
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#include <linux/config.h>
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#ifdef CONFIG_APUS
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.file "oktagon_io.c"
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gcc2_compiled.:
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/*
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.section ".text"
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*/
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.align 2
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.globl oktag_to_io
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.type oktag_to_io,@function
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oktag_to_io:
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addi 5,5,3
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srwi 5,5,2
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cmpwi 1,5,0
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mr 9,3
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mr 3,4
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addi 5,5,-1
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bc 12,6,.L3
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.L5:
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cmpwi 1,5,0
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lwz 0,0(3)
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addi 3,3,4
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addi 5,5,-1
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exp1: stw 0,0(9)
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bc 4,6,.L5
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.L3:
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ret1: subf 3,4,3
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srawi 3,3,2
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blr
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.Lfe1:
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.size oktag_to_io,.Lfe1-oktag_to_io
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.align 2
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.globl oktag_from_io
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.type oktag_from_io,@function
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oktag_from_io:
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addi 5,5,3
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srwi 5,5,2
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cmpwi 1,5,0
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mr 9,3
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addi 5,5,-1
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bc 12,6,.L9
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.L11:
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cmpwi 1,5,0
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exp2: lwz 0,0(4)
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addi 5,5,-1
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stw 0,0(3)
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addi 3,3,4
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bc 4,6,.L11
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.L9:
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ret2: subf 3,9,3
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srawi 3,3,2
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blr
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.Lfe2:
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.size oktag_from_io,.Lfe2-oktag_from_io
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.ident "GCC: (GNU) egcs-2.90.29 980515 (egcs-1.0.3 release)"
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/*
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* Exception table.
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* Second longword shows where to jump when an exception at the addr the first
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* longword is pointing to is caught.
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*/
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.section __ex_table,"a"
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.align 2
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oktagon_except:
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.long exp1,ret1
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.long exp2,ret2
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#else
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/*
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The code which follows is for 680x0 based assembler and is meant for
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Linux/m68k. It was created by cross compiling the code using the
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instructions given above. I then added the four labels used in the
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exception handler table at the bottom of this file.
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- Kevin <kcozens@interlog.com>
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*/
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#ifdef CONFIG_AMIGA
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.file "oktagon_io.c"
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.version "01.01"
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gcc2_compiled.:
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.text
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.align 2
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.globl oktag_to_io
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.type oktag_to_io,@function
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oktag_to_io:
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link.w %a6,#0
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move.l %d2,-(%sp)
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move.l 8(%a6),%a1
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move.l 12(%a6),%d1
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move.l %d1,%a0
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move.l 16(%a6),%d0
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addq.l #3,%d0
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lsr.l #2,%d0
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subq.l #1,%d0
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moveq.l #-1,%d2
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cmp.l %d0,%d2
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jbeq .L3
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.L5:
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exp1:
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move.l (%a0)+,(%a1)
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dbra %d0,.L5
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clr.w %d0
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subq.l #1,%d0
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jbcc .L5
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.L3:
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ret1:
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move.l %a0,%d0
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sub.l %d1,%d0
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asr.l #2,%d0
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move.l -4(%a6),%d2
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unlk %a6
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rts
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.Lfe1:
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.size oktag_to_io,.Lfe1-oktag_to_io
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.align 2
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.globl oktag_from_io
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.type oktag_from_io,@function
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oktag_from_io:
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link.w %a6,#0
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move.l %d2,-(%sp)
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move.l 8(%a6),%d1
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move.l 12(%a6),%a1
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move.l %d1,%a0
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move.l 16(%a6),%d0
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addq.l #3,%d0
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lsr.l #2,%d0
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subq.l #1,%d0
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moveq.l #-1,%d2
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cmp.l %d0,%d2
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jbeq .L9
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.L11:
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exp2:
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move.l (%a1),(%a0)+
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dbra %d0,.L11
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clr.w %d0
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subq.l #1,%d0
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jbcc .L11
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.L9:
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ret2:
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move.l %a0,%d0
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sub.l %d1,%d0
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asr.l #2,%d0
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move.l -4(%a6),%d2
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unlk %a6
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rts
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.Lfe2:
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.size oktag_from_io,.Lfe2-oktag_from_io
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.ident "GCC: (GNU) 2.7.2.1"
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/*
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* Exception table.
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* Second longword shows where to jump when an exception at the addr the first
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* longword is pointing to is caught.
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*/
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.section __ex_table,"a"
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.align 2
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oktagon_except:
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.long exp1,ret1
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.long exp2,ret2
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#endif
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#endif
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