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