cscg22-gearboy

CSCG 2022 Challenge 'Gearboy'
git clone https://git.sinitax.com/sinitax/cscg22-gearboy
Log | Files | Refs | sfeed.txt

modmixed.s (1588B)


      1;--------------------------------------------------------------------------
      2;  modmixed.s
      3;
      4;  Copyright (C) 2010-2021, Philipp Klaus Krause
      5;
      6;  This library is free software; you can redistribute it and/or modify it
      7;  under the terms of the GNU General Public License as published by the
      8;  Free Software Foundation; either version 2, or (at your option) any
      9;  later version.
     10;
     11;  This library is distributed in the hope that it will be useful,
     12;  but WITHOUT ANY WARRANTY; without even the implied warranty of
     13;  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
     14;  GNU General Public License for more details.
     15;
     16;  You should have received a copy of the GNU General Public License 
     17;  along with this library; see the file COPYING. If not, write to the
     18;  Free Software Foundation, 51 Franklin Street, Fifth Floor, Boston,
     19;   MA 02110-1301, USA.
     20;
     21;  As a special exception, if you link this library with other files,
     22;  some of which are compiled with SDCC, to produce an executable,
     23;  this library does not by itself cause the resulting executable to
     24;  be covered by the GNU General Public License. This exception does
     25;  not however invalidate any other reasons why the executable file
     26;   might be covered by the GNU General Public License.
     27;--------------------------------------------------------------------------
     28
     29.globl	__modsuchar
     30.globl	__moduschar
     31
     32__modsuchar:
     33	ld	e, l
     34	ld	l, a
     35	ld	h, #0
     36
     37	call    __div_signexte
     38
     39	jp	__get_remainder
     40
     41__moduschar:
     42	ld	e, l
     43	ld	d, #0
     44	ld	l, a
     45
     46	rlca		; Sign extend
     47	sbc	a, a
     48	ld	h, a
     49
     50	call	__div16
     51
     52	jp	__get_remainder
     53