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- /* This is file TEXT.C */
- /*
- ** Copyright (C) 1993 DJ Delorie, 24 Kirsten Ave, Rochester NH 03867-2954
- **
- ** This file is distributed under the terms listed in the document
- ** "copying.dj", available from DJ Delorie at the address above.
- ** A copy of "copying.dj" should accompany this file; if not, a copy
- ** should be available from where this file was obtained. This file
- ** may not be distributed without a verbatim copy of "copying.dj".
- **
- ** This file is distributed WITHOUT ANY WARRANTY; without even the implied
- ** warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
- */
-
- #include "sys/registers.h"
-
- static unsigned char *font=0;
-
- #define CHARHEIGHT 16
-
- GrTextXY(int x, int y, char *text, int fg, int bg)
- {
- REGISTERS reg;
- unsigned char *fp;
- int r, c, bits;
- if (font == 0)
- {
- reg.ax = 0x1130;
- reg.bx = 0x0600;
- int10(®);
- font = (unsigned char *)reg.bp;
- }
- while (*text)
- {
- fp = font + CHARHEIGHT * *(unsigned char *)text;
- for (r=0; r<CHARHEIGHT; r++)
- {
- bits = *fp++;
- for (c=0; c<8; c++)
- if (bits & (0x80>>c))
- GrPlot(x+c, y+r, fg);
- else
- GrPlot(x+c, y+r, bg);
- }
- text++;
- x += 8;
- }
- }
-