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gbdk-2020

GameBoy Development Kit
download: https://git.y1.nz/archives/gbdk.tar.gz
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gbdk-lib/libc/asm/z80/__sdcc_call_iy.s

      1 ;--------------------------------------------------------------------------
      2 ;  crtcall.s
      3 ;
      4 ;  Copyright (C) 2011, Maarten Brock, 2015 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 	.area   _CODE
     30 
     31 	.globl ___sdcc_call_iy
     32 
     33 ; The Z80 has the jp (iy) instruction, which is perfect for implementing function pointers.
     34 
     35 ___sdcc_call_iy:
     36 	jp	(iy)
     37 

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