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Added code to handle the special case of a zero-length move.

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Added more tests of memcpy() and memmove().
This commit is contained in:
Greg King
2015-11-02 17:04:46 -05:00
parent 281dc33e5a
commit 8180ac20d3
3 changed files with 34 additions and 16 deletions
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5
testcode/lib/pce/Makefile
View File

@@ -1,3 +1,4 @@
.PHONY: all clean test
all: conio.pce
@@ -5,9 +6,7 @@ conio.pce: conio.c
../../../bin/cl65 -t pce conio.c --mapfile conio.map -o conio.pce
clean:
$(RM) conio.pce
$(RM) conio.map
$(RM) conio.o conio.pce conio.map
test: conio.pce
mednafen -force_module pce conio.pce

22
testcode/lib/pce/conio.c
View File

@@ -1,4 +1,3 @@
#include <conio.h>
#include <time.h>
#include <joystick.h>
@@ -13,7 +12,7 @@ void main(void)
int i, j;
clock_t clk;
char* p;
unsigned char xsize, ysize, n;
unsigned char xsize, ysize, n, nn;
joy_install(&joy_static_stddrv);
@@ -40,11 +39,12 @@ void main(void)
gotoxy(0, 16 + i);
p = malloc(16);
memcpy(p, "0123456789abcdef", 16);
cprintf("alloced at: %04p - %c%c%c%c%c%c%c%c%c%c%c%c%c%c%c%c", p,
cprintf("alloc'ed at: %04p - %c%c%c%c%c%c%c%c%c%c%c%c%c%c%c%c", p,
p[0],p[1],p[2],p[3],p[4],p[5],p[6],p[7],
p[8],p[9],p[10],p[11],p[12],p[13],p[14],p[15]
);
}
memcpy(p, main, 0); /* test that a zero length doesn't copy 64K */
gotoxy(0,ysize - 1);
for (i = 0; i < xsize; ++i) {
@@ -108,14 +108,22 @@ void main(void)
}
gotoxy(xsize - 10, 3);
j = (n >> 5) & 1;
revers(j);
cputc(j ? 'R' : ' ');
nn = (n >> 5) & 1;
revers(nn);
cputc(nn ? 'R' : ' ');
cputs(" revers");
revers(0);
if ((n & 0x1f) == 0x00) {
nn = p[15];
((char*)memmove(p + 1, p, 15))[-1] = nn;
gotoxy(22, 19);
cprintf("%c%c%c%c%c%c%c%c%c%c%c%c%c%c%c%c",
p[0],p[1],p[ 2],p[ 3],p[ 4],p[ 5],p[ 6],p[ 7],
p[8],p[9],p[10],p[11],p[12],p[13],p[14],p[15]);
}
waitvblank();
++n;
}
for(;;);
}