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Diffstat (limited to 'board/MAI/bios_emulator/scitech/src/pm/tests/memtest.c')
-rw-r--r-- | board/MAI/bios_emulator/scitech/src/pm/tests/memtest.c | 106 |
1 files changed, 106 insertions, 0 deletions
diff --git a/board/MAI/bios_emulator/scitech/src/pm/tests/memtest.c b/board/MAI/bios_emulator/scitech/src/pm/tests/memtest.c new file mode 100644 index 00000000000..221bfb1a022 --- /dev/null +++ b/board/MAI/bios_emulator/scitech/src/pm/tests/memtest.c @@ -0,0 +1,106 @@ +/**************************************************************************** +* +* SciTech OS Portability Manager Library +* +* ======================================================================== +* +* The contents of this file are subject to the SciTech MGL Public +* License Version 1.0 (the "License"); you may not use this file +* except in compliance with the License. You may obtain a copy of +* the License at http://www.scitechsoft.com/mgl-license.txt +* +* Software distributed under the License is distributed on an +* "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or +* implied. See the License for the specific language governing +* rights and limitations under the License. +* +* The Original Code is Copyright (C) 1991-1998 SciTech Software, Inc. +* +* The Initial Developer of the Original Code is SciTech Software, Inc. +* All Rights Reserved. +* +* ======================================================================== +* +* +* Language: ANSI C +* Environment: any +* +* Description: Test program to determine just how much memory can be +* allocated with the compiler in use. Compile and link +* with the appropriate command line for your DOS extender. +* +* Functions tested: PM_malloc() +* PM_availableMemory() +* +* +****************************************************************************/ + +#include <stdlib.h> +#include <stdio.h> +#include <string.h> +#include <math.h> +#include "pmapi.h" + +#ifdef __16BIT__ +#define MAXALLOC 64 +#else +#define MAXALLOC 2000 +#endif + +int main(void) +{ + int i; + ulong allocs; + ulong physical,total; + char *p,*pa[MAXALLOC]; + + printf("Program running in "); + switch (PM_getModeType()) { + case PM_realMode: + printf("real mode.\n\n"); + break; + case PM_286: + printf("16 bit protected mode.\n\n"); + break; + case PM_386: + printf("32 bit protected mode.\n\n"); + break; + } + + printf("Memory available at start:\n"); + PM_availableMemory(&physical,&total); + printf(" Physical memory: %ld Kb\n", physical / 1024); + printf(" Total (including virtual): %ld Kb\n", total / 1024); + printf("\n"); + for (allocs = i = 0; i < MAXALLOC; i++) { + if ((pa[i] = PM_malloc(10*1024)) != 0) { /* in 10k blocks */ + p = pa[allocs]; + memset(p, 0, 10*1024); /* touch every byte */ + *p = 'x'; /* do something, anything with */ + p[1023] = 'y'; /* the allocated memory */ + allocs++; + printf("Allocated %lu bytes\r", 10*(allocs << 10)); + } + else break; + if (PM_kbhit() && (PM_getch() == 0x1B)) + break; + } + + printf("\n\nAllocated total of %lu bytes\n", 10 * (allocs << 10)); + + printf("\nMemory available at end:\n"); + PM_availableMemory(&physical,&total); + printf(" Physical memory: %ld Kb\n", physical / 1024); + printf(" Total (including virtual): %ld Kb\n", total / 1024); + + for (i = allocs-1; i >= 0; i--) + PM_free(pa[i]); + + printf("\nMemory available after freeing all blocks (note that under protected mode\n"); + printf("this will most likely not be correct after freeing blocks):\n\n"); + PM_availableMemory(&physical,&total); + printf(" Physical memory: %ld Kb\n", physical / 1024); + printf(" Total (including virtual): %ld Kb\n", total / 1024); + + return 0; +} |