Unitech PT600, Programming Reference Manual

Page: 12 / 77

0A Display Character
Entry Parameter: AH = 0AH
AL = 0 - 255 ; character to display
Return Value: None
Example
regs.h.ah = 0x0A;
regs.h.al = cc;
int86(0x10,&regs,&regs);
4F Display 16*16 Bitmap at Current Cursor Position
Entry Parameter: AH = 4FH
DS:BX ; pointer to bitmap (32-bytes pattern data)
Return Value: None
Note: This function is available only in large font.
Example :
void TL_display_16x16(unsigned char *str)
{
regs.h.ah=0x4F;
segregs.ds = FP_SEG(str);
regs.x.bx = FP_OFF(str);
int86x(0x10,&regs,&regs,&segregs);
}
1.5
System Functions ( INT 21H )
00 Terminate Program
Entry Parameter: AH = 0
Return Value: None
Example:
void TS_exit_program()
{
regs.h.ah= 0;
int86(0x21,&regs,&regs);
}
01 Read Keypad (wait if no key) and Write to LCD