44 lines
1.1 KiB
C
44 lines
1.1 KiB
C
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/******************************************************************
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* system.c - Basic system functions *
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******************************************************************/
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#include <system.h>
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byte *TextVideoRam;
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volatile int cursor_x, cursor_y;
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int current_mode_width;
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int current_mode_height;
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void *memcpy(void *dest, const void *src, int count)
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{
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const char *sp = (const char *)src;
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char *dp = (char *)dest;
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for(; count != 0; count--) *dp++ = *sp++;
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return dest;
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}
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void *memset(void *dest, char val, int count)
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{
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char *temp = (char *)dest;
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for( ; count != 0; count--) *temp++ = val;
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return dest;
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}
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unsigned short *memsetw(unsigned short *dest, unsigned short val, int count)
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{
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unsigned short *temp = (unsigned short *)dest;
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for( ; count != 0; count--) *temp++ = val;
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return dest;
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}
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byte inportb (word _port) {
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byte rv;
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__asm__ __volatile__ ("inb %1, %0" : "=a" (rv) : "dN" (_port));
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return rv;
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}
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byte inb (word _port) {
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byte rv;
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__asm__ __volatile__ ("inb %1, %0" : "=a" (rv) : "dN" (_port));
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return rv;
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}
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