63 lines
1023 B
C
63 lines
1023 B
C
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#pragma once
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#ifdef __DEBUG__
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unsigned short * textmemptr = (unsigned short *)0xB8000;
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static void placech(unsigned char c, int x, int y, int attr) {
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unsigned short *where;
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unsigned att = attr << 8;
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where = textmemptr + (y * 80 + x);
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*where = c | att;
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}
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static int x = 0;
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static int y = 0;
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static void print(char * str) {
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while (*str) {
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if (*str == '\n') {
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for (; x < 80; ++x) {
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placech(' ', x, y, 0x00);
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}
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x = 0;
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y += 1;
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if (y == 24) {
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y = 0;
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}
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} else {
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placech(*str, x, y, 0x07);
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x++;
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if (x == 80) {
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x = 0;
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y += 1;
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if (y == 24) {
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y = 0;
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}
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}
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}
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str++;
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}
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}
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static void print_hex(unsigned int value) {
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char out[9] = {0};
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for (int i = 7; i > -1; i--) {
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out[i] = "0123456789abcdef"[(value >> (4 * (7 - i))) & 0xF];
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}
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print(out);
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}
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static void clear() {
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x = 0;
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y = 0;
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for (int y = 0; y < 24; ++y) {
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for (int x = 0; x < 80; ++x) {
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placech(' ', x, y, 0x00);
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}
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}
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}
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#else
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#define print(...)
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#define clear()
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#define print_hex(...)
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#endif
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