mirror of
https://github.com/autc04/Retro68.git
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115 lines
2.7 KiB
ArmAsm
115 lines
2.7 KiB
ArmAsm
/*
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* Copyright (c) 2011 Aeroflex Gaisler
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*
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* BSD license:
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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* THE SOFTWARE.
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*/
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#include <asm-leon/head.h>
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.section .text
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/* ------- */
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.weak _cleanregs_custom_weak
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.set _cleanregs_custom_weak,_cleanregs_donothing
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/* ------- */
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.global _cleanregs_libgloss
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_cleanregs_donothing:
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_cleanregs_libgloss:
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retl
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nop
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#define NUMREGWINDOWS 8
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//_cleanregs_libgloss:
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!''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''
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! initialize regs with values
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//#define REGINIT
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#ifdef REGINIT
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mov %psr, %g3
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mov %wim, %g4
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mov %sp, %g5
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mov %fp, %g6
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mov %o7, %g7
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mov %g0, %wim
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set 0, %g1
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andn %g3,0x1f,%l0
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mov %l0,%psr
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nop; nop; nop
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3: set 0x0001,%i0
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set 0x0101,%i1
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set 0x0201,%i2
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set 0x0301,%i3
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set 0x0401,%i4
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set 0x0501,%i5
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set 0x0601,%i6
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set 0x0701,%i7
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set 0x0801,%l0
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set 0x0901,%l1
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set 0x1001,%l2
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set 0x1101,%l3
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set 0x1201,%l4
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set 0x1301,%l5
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set 0x1401,%l6
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set 0x1501,%l7
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or %g1,%i0,%i0
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or %g1,%i1,%i1
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or %g1,%i2,%i2
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or %g1,%i3,%i3
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or %g1,%i4,%i4
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or %g1,%i5,%i5
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or %g1,%i6,%i6
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or %g1,%i7,%i7
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or %g1,%l0,%l0
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or %g1,%l1,%l1
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or %g1,%l2,%l2
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or %g1,%l3,%l3
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or %g1,%l4,%l4
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or %g1,%l5,%l5
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or %g1,%l6,%l6
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or %g1,%l7,%l7
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restore
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set 0x10000,%g2
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add %g1,%g2,%g1
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set NUMREGWINDOWS*0x10000,%g2
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cmp %g1,%g2
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bne 3b
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nop
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mov %g4,%wim
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nop; nop; nop;
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mov %g3,%psr
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nop; nop; nop;
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mov %g5, %sp
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mov %g6, %fp
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#endif
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!''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''
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jmpl %g7+8,%g0
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nop
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