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|
;--------------------------------------------------------------------------
; __setjmp.s
;
; Copyright (C) 2019, Philipp Klaus Krause
;
; This library is free software; you can redistribute it and/or modify it
; under the terms of the GNU General Public License as published by the
; Free Software Foundation; either version 2, or (at your option) any
; later version.
;
; This library is distributed in the hope that it will be useful,
; but WITHOUT ANY WARRANTY; without even the implied warranty of
; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
; GNU General Public License for more details.
;
; You should have received a copy of the GNU General Public License
; along with this library; see the file COPYING. If not, write to the
; Free Software Foundation, 51 Franklin Street, Fifth Floor, Boston,
; MA 02110-1301, USA.
;
; As a special exception, if you link this library with other files,
; some of which are compiled with SDCC, to produce an executable,
; this library does not by itself cause the resulting executable to
; be covered by the GNU General Public License. This exception does
; not however invalidate any other reasons why the executable file
; might be covered by the GNU General Public License.
;--------------------------------------------------------------------------
.area DATA
___setjmp_PARM_1::
.ds 2
_longjmp_PARM_1::
.ds 2
_longjmp_PARM_2::
.ds 2
.area CODE
___setjmp::
mov a, sp
add a, #-1
mov p, a
idxm a, p
push af
dec p
idxm a, p
xch a, p
mov a, ___setjmp_PARM_1+0
xch a, p
idxm p, a
inc p
pop af
idxm p, a
inc p
mov a, sp
idxm p, a
clear p
ret #0
_longjmp::
mov a, _longjmp_PARM_1+0
add a, #2
mov p, a
idxm a, p
add a, #-2
mov sp, a
dec p
dec p
idxm a, p
push af
inc p
idxm a, p
xch a, p
mov a, sp
add a, #-1
xch a, p
idxm p, a
mov a, _longjmp_PARM_2+1
mov p, a
mov a, _longjmp_PARM_2+0
ceqsn a, p
ret
ceqsn a, #0
ret
ret #1
|
