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initial commit
[3sys]
/
sys1
/
kern
/
src
/
main.c
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#include <string.h>
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#include <stdint.h>
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void clearscr(void)
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{
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memset((void*)0xb8000, 0, 80 * 25 * 2);
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}
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void drawtext(int x, int y, const char *s)
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{
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uint16_t *vptr = (uint16_t*)0xb8000 + y * 80 + x;
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while(*s) {
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*vptr++ = 0x0c00 | *s++;
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}
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}
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void kmain(void)
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{
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clearscr();
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drawtext(10, 5, "3sys kernel 1");
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}