Unitech PT600, Programming Reference Manual

Page: 17 / 77

09 Write Character String to LCD
Entry Parameter: AH = 9
DS:DX ; pointer to string buffer
Return Value: None
Example:
void TS_stdout_string(unsigned char *str)
{
segregs.ds = FP_SEG(str);
regs.x.dx = FP_OFF(str);
regs.h.ah= 9;
int86x(0x21,&regs,&regs,&segregs);
return;
}
0A Buffered Keypad Input
Entry parameter: AH = 0AH
DS:DX ; pointer to data buffer
Return value: DS:DX ; pointer to data buffer
Data format in buffer:
Input buffer with CR at last
number of characters actual input
number of characters requested to be input
n m
Example:
void TS_stdin_string(unsigned char *str)
{
segregs.ds = FP_SEG(str);
regs.x.dx = FP_OFF(str);
regs.h.ah= 0x0a;
int86x(0x21,&regs,&regs,&segregs);
return;
}
0B Check Keypad Status
Entry Parameter: AH = 0BH
Returned Value: AL = 0 ; no keys were pressed
0FFH ; key was pressed and input character
is Ready
Example:
unsigned char TS_kbhit()
{