43 lines
1.2 KiB
C
43 lines
1.2 KiB
C
#include "../include/microfx/microfx.h"
|
|
|
|
/******* KEYBOARD *******/
|
|
|
|
/* Syscalls */
|
|
|
|
int _Keyboard_KeyDown(void);
|
|
int _Keyboard_PRGM_GetKey(unsigned char* buffer);
|
|
|
|
/* Microfx */
|
|
|
|
int kisdown(void) {
|
|
return _Keyboard_KeyDown();
|
|
}
|
|
|
|
int kcheck(int key) {
|
|
/* TODO : Compatibility with older calcs. */
|
|
/* Get the column and the row of the key. */
|
|
int row = key%10;
|
|
int column = key/10 - 1;
|
|
/* The bit that I will read in the KIUDATA
|
|
register. */
|
|
int column_pos = column + 8 * (row & 1);
|
|
/* row_data will contain the data of the
|
|
KIUDATA register that we need.
|
|
keyboard_register contains the address of
|
|
KIUDATA0. */
|
|
unsigned short *keyboard_register = (unsigned short*)0xA44B0000;
|
|
unsigned short row_data;
|
|
/* Get KIUDATAx where x is row / 2 because two rows
|
|
are stored in each KIUDATA register. */
|
|
row_data = keyboard_register[row/2];
|
|
/* Get the bit located at column. */
|
|
return (row_data >> column_pos) & 1;
|
|
}
|
|
|
|
int kgetkey(void){
|
|
/* Made a prgm like getkey in the same way as simlo described it. */
|
|
unsigned char buffer[12];
|
|
_Keyboard_PRGM_GetKey(buffer);
|
|
return (buffer[1] & 0x0F) * 10 + ((buffer[2] & 0xF0 ) >> 4);
|
|
}
|