; vim: sts=4 sw=8 et ai fdm=marker

;
;                 fnordlicht firmware
;
;    for additional information please
;    see http://koeln.ccc.de/prozesse/running/fnordlicht
;
; (c) by Alexander Neumann <alexander@bumpern.de>
;    and Lars Noschinski <lars@public.noschinski.de>
;
; This program is free software; you can redistribute it and/or modify
; it under the terms of the GNU General Public License version 2 as
; published by the Free Software Foundation.
;
; This program 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 program; if not, write to the Free Software
; Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
;
; For more information on the GPL, please go to:
; http://www.gnu.org/copyleft/gpl.html




; hold some general memory handling macros

; stack handling
; ==============

;   macro: STACK_POP {{{
; ==================================================================================
;
;                            @0       @1
; call: MACRO_STACK_POP StackPointer Return
;
;   @0 must be X, Y or Z.

.macro MACRO_STACK_POP
        ld @1, -@0
.endmacro

; }}}

;   macro: STACK_PUSH {{{
; ==================================================================================
;
;                             @0       @1
; call: MACRO_STACK_PUSH StackPointer Byte
;
;   @0 must be X, Y or Z.

.macro MACRO_STACK_PUSH
        st @0+, @1
.endmacro

; }}}