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display more memory variables

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git-svn-id: svn://svn.cc65.org/cc65/trunk@3173 b7a2c559-68d2-44c3-8de9-860c34a00d81
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cpg 2004-08-04 00:02:24 +00:00
parent aa787ec0d3
commit 2e1183125f
1 changed files with 36 additions and 8 deletions
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42
testcode/lib/atari/mem.c
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@ -1,19 +1,47 @@
/*
* test program to display avail. mem.
* show some memory stuff
*
* 04-Aug-2004, Christian Groessler
*/
#include <stdio.h>
#include <stdlib.h>
#include <conio.h>
#include <atari.h>
unsigned int *APPMHI = (unsigned int *)0xe;
unsigned int *MEMTOP = (unsigned int *)0x2e5;
extern int getsp(void); /* comes from ../getsp.s */
unsigned char _graphmode_used = 0;
extern char _dos_type; /* bss variable */
extern unsigned char _graphmode_used; /* data variable */
unsigned int *APPMHI = (unsigned int *)14; /* 14,15 */
unsigned char *RAMTOP = (unsigned char *)106; /* in pages */
unsigned int *LOMEM = (unsigned int *)128; /* used by BASIC */
unsigned int *MEMTOP = (unsigned int *)741;
unsigned int *MEMLO = (unsigned int *)743;
void *allocmem;
int main(void)
{
printf("APPMHI = %04X, MEMTOP = %04X\n",*APPMHI,*MEMTOP);
printf("press return!\n");
getchar();
allocmem = malloc(257);
clrscr();
printf(" RAMTOP = %02X (%u) - $%04X (%u)\n",
*RAMTOP, *RAMTOP, *RAMTOP * 256, *RAMTOP * 256);
printf(" APPMHI = $%04X (%u)\n", *APPMHI, *APPMHI);
printf(" LOMEM = $%04X (%u) <BASIC only>\n", *LOMEM, *LOMEM);
printf(" MEMTOP = $%04X (%u)\n", *MEMTOP, *MEMTOP);
printf(" MEMLO = $%04X (%u)\n", *MEMLO, *MEMLO);
printf(" ----------------------\n");
printf(" main: $%04X (code)\n", &main);
printf(" _graphmode_used: $%04X (data)\n", &_graphmode_used);
printf(" _dos_type: $%04X (bss)\n", &_dos_type);
printf(" allocmem: $%04X (dyn. data)\n", allocmem);
printf(" sp: $%04X (stack ptr)\n", getsp());
if (allocmem) free(allocmem);
if (_dos_type != 1) cgetc();
return(0);
}