ugBASIC 1.18
An isomorphic BASIC language compiler for retrocomputers
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mempos.c
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1/*****************************************************************************
2 * ugBASIC - an isomorphic BASIC language compiler for retrocomputers *
3 *****************************************************************************
4 * Copyright 2021-2026 Marco Spedaletti (asimov@mclink.it)
5 *
6 * Licensed under the Apache License, Version 2.0 (the "License");
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30
31/****************************************************************************
32 * INCLUDE SECTION
33 ****************************************************************************/
34
35#include "../../ugbc.h"
36
37/****************************************************************************
38 * CODE SECTION
39 ****************************************************************************/
40
41/* <usermanual>
42@keyword MEMPOS
43
44@english
45
46The ''MEMPOS'' instruction tells to an expansion memory management which
47address (''address'') and which bank (''bank') should be affected
48by the data transfer (start or destination address of the transfer).
49
50@italian
51
52L'istruzione ''MEMPOS'' indica a un gestore di memoria di espansione quale
53indirizzo (''address'') e quale banco (''bank') devono essere interessati
54dal trasferimento dati (indirizzo di inizio o di destinazione del trasferimento).
55
56@syntax MEMPOS address, bank
57
58@example MEMPOS 1000, 0
59
60@usedInExample tsb_memload.bas
61
62@seeAlso MEMLEN
63@seeAlso MEMOR
64@seeAlso MEMCONT
65@seeAlso MEMRESTORE
66@seeAlso MEMLOAD
67@seeAlso MEMSAVE
68@seeAlso MEMDEF
69
70</usermanual> */
71
72void mempos( Environment * _environment, char * _address, char * _bank ) {
73
74 Variable * membank = variable_retrieve_or_define( _environment, "MEMBANK", VT_BYTE, 0 );
75 Variable * mempos = variable_retrieve_or_define( _environment, "MEMPOS", VT_ADDRESS, 0 );
76 Variable * bank = variable_retrieve_or_define( _environment, _bank, VT_BYTE, 0 );
77 Variable * address = variable_retrieve_or_define( _environment, _address, VT_ADDRESS, 0 );
78
79 variable_move( _environment, address->name, mempos->name );
80 variable_move( _environment, bank->name, membank->name );
81
82}
Variable * variable_retrieve_or_define(Environment *_environment, char *_name, VariableType _type, int _value)
Variable * variable_move(Environment *_environment, char *_source, char *_destination)
Store the value of a variable inside another variable by converting it.
void mempos(Environment *_environment, char *_address, char *_bank)
Definition mempos.c:72
char * name
Definition ugbc.h:979
struct _Variable Variable
Structure of a single variable.
struct _Environment Environment
Structure of compilation environment.
@ VT_BYTE
Definition ugbc.h:450
@ VT_ADDRESS
Definition ugbc.h:465