mirror of
https://github.com/cc65/cc65.git
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87 lines
1.9 KiB
C
87 lines
1.9 KiB
C
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#include <stdlib.h>
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#include <stdio.h>
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#include <string.h>
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#ifdef __C64__
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#include <conio.h>
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#endif
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/* apparently we dont trigger the bug when not using absolute addresses? */
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#ifdef __C64__
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#define TARGETMEM 0x4c8
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#define SOURCEMEM 0x702
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#elif __SIM6502__
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#define TARGETMEM 0xc4c8
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#define SOURCEMEM 0xc702
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#elif __SIM65C02__
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#define TARGETMEM 0xc4c8
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#define SOURCEMEM 0xc702
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#else
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static unsigned char mem[0x10];
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#define TARGETMEM &mem[0]
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#define SOURCEMEM &mem[8]
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#endif
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/* do not put at pos. 1, and 1 byte apart - so we can eventually notice
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off-by-one errors */
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static unsigned short u16w = 3;
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static unsigned short u16r = 5;
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static unsigned char target[8] = { 0x0, 0x1, 0x2, 0x3, 0x4, 0x5, 0x6, 0x7 };
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static unsigned char source[8] = { 0x8, 0x9, 0xa, 0xb, 0xc, 0xd, 0xe, 0xf };
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static unsigned char expect[8] = { 0x0, 0x1, 0xc, 0xd, 0x4, 0x5, 0x6, 0x7 };
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static unsigned char i;
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static unsigned char err = EXIT_SUCCESS;
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void test1(void)
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{
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((unsigned char*)TARGETMEM)[u16w--] = ((unsigned char*)SOURCEMEM)[u16r--];
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}
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void dotest(void)
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{
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memcpy(TARGETMEM, target, 8);
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memcpy(SOURCEMEM, source, 8);
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test1();
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memcpy(target, TARGETMEM, 8);
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memcpy(source, SOURCEMEM, 8);
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#ifdef __C64__
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clrscr();
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#endif
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printf("source:");
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for(i = 0; i < 8; ++i) {
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printf("%0x ", source[i]);
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}
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printf("\n\rtarget:");
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for(i = 0; i < 8; ++i) {
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printf("%0x ", target[i]);
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}
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printf("\n\r");
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printf("u16w: %d\n\r", u16w);
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printf("u16r: %d\n\r", u16r);
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}
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int main(void)
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{
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dotest();
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dotest();
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if (memcmp(target, expect, 8) != 0) {
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printf("buffer data error\n\r");
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err = EXIT_FAILURE;
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}
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if (u16w != 1) {
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err = EXIT_FAILURE;
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}
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if (u16r != 3) {
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err = EXIT_FAILURE;
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}
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printf("return: %d\n\r", err);
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return err;
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}
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