mirror of
https://github.com/autc04/Retro68.git
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76 lines
1.4 KiB
ArmAsm
76 lines
1.4 KiB
ArmAsm
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/* setjmp/longjmp routines.
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*
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* Written by Michael Hayes <m.hayes@elec.canterbury.ac.nz>.
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*
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* The author hereby grant permission to use, copy, modify, distribute,
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* and license this software and its documentation for any purpose, provided
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* that existing copyright notices are retained in all copies and that this
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* notice is included verbatim in any distributions. No written agreement,
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* license, or royalty fee is required for any of the authorized uses.
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* Modifications to this software may be copyrighted by their authors
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* and need not follow the licensing terms described here, provided that
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* the new terms are clearly indicated on the first page of each file where
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* they apply.
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*/
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.sect .text
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.global setjmp
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.global longjmp
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setjmp:
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pop r1
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ldi sp, ar0
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#ifndef _REGPARM
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ldi *ar0, ar2
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#endif
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sti r4, *ar2++
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sti r5, *ar2++
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stf r6, *ar2++
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stf r7, *ar2++
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#ifdef _TMS320C4x
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sti r8, *ar2++
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#endif
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sti ar3, *ar2++
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sti ar4, *ar2++
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sti ar5, *ar2++
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sti ar6, *ar2++
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sti ar7, *ar2++
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bd r1
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sti r1, *ar2++
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sti ar0, *ar2
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ldi 0, r0
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longjmp:
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#ifndef _REGPARM
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ldi sp, ar0
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ldi *-ar0(1), ar2
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ldi *-ar0(2), r0
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ldiz 1, r0
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#else
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ldi r2, r0
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ldiz 1, r0
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#endif
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ldi *ar2++, r4
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ldi *ar2++, r5
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ldf *ar2++, r6
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ldf *ar2++, r7
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#ifdef _TMS320C4x
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ldi *ar2++, r8
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#endif
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ldi *ar2++, ar3
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ldi *ar2++, ar4
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ldi *ar2++, ar5
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ldi *ar2++, ar6
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ldi *ar2++, ar7
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ldi *ar2++, r1
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ldi *ar2, sp
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b r1
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.end
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