1 /*-------------------------------------------------------------------------
3 _gptrget.c :- get value for a generic pointer
5 Written By - Sandeep Dutta . sandeep.dutta@usa.net (1999)
7 This library is free software; you can redistribute it and/or modify it
8 under the terms of the GNU Library General Public License as published by the
9 Free Software Foundation; either version 2, or (at your option) any
12 This library is distributed in the hope that it will be useful,
13 but WITHOUT ANY WARRANTY; without even the implied warranty of
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 GNU Library General Public License for more details.
17 You should have received a copy of the GNU Library General Public License
18 along with this program; if not, write to the Free Software
19 Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
21 In other words, you are welcome to use, share and improve this program.
22 You are forbidden to forbid anyone else to use, share and improve
23 what you give them. Help stamp out software-hoarding!
24 -------------------------------------------------------------------------*/
27 /* the return value is expected to be in acc, and not in the standard
28 * location dpl. Therefore we choose return type void here: */
32 gptr; /* hush the compiler */
37 ; depending on the pointer type acc. to SDCCsymt.h
47 dec a ; 4 skip generic pointer
51 ; any other value for type
56 ; Pointer to data space
61 mov r0,dpl ; use only low order address
68 ; pointer to xternal data
74 ; pointer to code area
81 ; pointer to xternal stack
84 mov dph,p2 ; p2 holds high byte for pdata access
94 /* the return value is expected to be in acc/_ap, and not in the standard
95 * location dpl/dph. Therefore we choose return type void here: */
97 _gptrgetWord (unsigned *gptr)
99 gptr; /* hush the compiler */
103 ; depending on the pointer type acc. to SDCCsymt.h
113 dec a ; 4 skip generic pointer
117 ; any other value for type
122 ; Pointer to data space
126 mov r0,dpl ; use only low order address
133 ; pointer to xternal data
142 ; pointer to code area
153 ; pointer to xternal stack