95 lines
2.9 KiB
ArmAsm
95 lines
2.9 KiB
ArmAsm
/*
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* setjmp/longjmp for LatticeMico32.
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* Contributed by Jon Beniston <jon@beniston.com>
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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.section .text
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.align 4
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.globl setjmp
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.type setjmp,@function
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.globl longjmp
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.type longjmp,@function
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/* setjmp: save all callee saves into jmp_buf
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r1 - Address of jmp_buf
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*/
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setjmp:
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sw (r1+0), r11
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sw (r1+4), r12
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sw (r1+8), r13
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sw (r1+12), r14
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sw (r1+16), r15
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sw (r1+20), r16
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sw (r1+24), r17
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sw (r1+28), r18
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sw (r1+32), r19
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sw (r1+36), r20
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sw (r1+40), r21
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sw (r1+44), r22
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sw (r1+48), r23
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sw (r1+52), r24
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sw (r1+56), r25
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sw (r1+60), gp
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sw (r1+64), fp
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sw (r1+68), sp
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sw (r1+72), ra
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mvi r1, 0
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ret
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/* longjmp: restore all callee saves from jmp_buf
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r1 - Address of jmb_buf
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r2 - Value to return with
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*/
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.global longjmp
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.type longjmp,@function
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.align 4
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longjmp:
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lw r11, (r1+0)
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lw r12, (r1+4)
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lw r13, (r1+8)
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lw r14, (r1+12)
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lw r15, (r1+16)
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lw r16, (r1+20)
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lw r17, (r1+24)
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lw r18, (r1+28)
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lw r19, (r1+32)
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lw r20, (r1+36)
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lw r21, (r1+40)
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lw r22, (r1+44)
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lw r23, (r1+48)
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lw r24, (r1+52)
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lw r25, (r1+56)
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lw gp, (r1+60)
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lw fp, (r1+64)
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lw sp, (r1+68)
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lw ra, (r1+72)
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mv r1, r2
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ret
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