/* initialize interrupt table so the handler can match addresses with interrupt numbers */
void interrupt_table_init( ){
long keyboard_address;
long interrupt_address;
long interrupt_table_ptr[2];
keyboard_address = (long)keyboard_handler;
IDT[0x21].offset_lower_bits = keyboard_address & 0xffff;
IDT[0x21].selector = 0x08;
IDT[0x21].zero = 0;
IDT[0x21].flag_type = 0x8e;
IDT[0x21].offset_higher_bits = (keyboard_address & 0xffff0000) >> 16;
/* remaps PCI interrupts to avoid double faults in protected mode*/
out_port(0x20 , 0x11);
out_port(0xA0 , 0x11);
out_port(0x21 , 0x20);
out_port(0xA1 , 0x28);
out_port(0x21 , 0x00);
out_port(0xA1 , 0x00);
out_port(0x21 , 0x01);
out_port(0xA1 , 0x01);
out_port(0x21 , 0xff);
out_port(0xA1 , 0xff);
interrupt_address = (long)IDT ;
interrupt_table_ptr[0] = (sizeof (struct Interrupt_Table_Entry) * 256) + ((interrupt_address & 0xffff) << 16);
interrupt_table_ptr[1] = interrupt_address >> 16 ;
load_interupt_loc(interrupt_table_ptr);
}
/* not implemented correctly function to move flashing cursor */
void move_cursor( int curr_loc ){
int temp;
//temp = 10 * 80 + 2;
temp = curr_loc;
out_port(0x3D4, 14);
out_port(0x3D5, temp >> 8);
out_port(0x3D4, 15);
out_port(0x3D5, temp);
}
int main(void)
{
USHORT in_stuff;
in_stuff = in_port (INPUT_PORT);
out_port (OUTPUT_PORT,TEST_DATA);
}
void int_timer1(void){
TCCR1B=0x00;
out_port();
TCNT1H=time_h_1;
TCNT1L=time_l_1;
TCCR1B=0x05;
return;
}
void out_addr(int addr)
{
int temp;
out_port(addr&0xff,0);
temp=port[1];
temp&=~0xf;
temp|=(addr>>8)&0xf;
out_port(temp, 1);
temp=port[3];
temp&=~0x41;
if (addr&0x1000) temp|=0x40;
if (addr&0x2000) temp|=1;
out_port(temp,3);
}
int main(void)
{
int value, i;
unsigned char data[0x4000];
FILE *file;
ioperm(PORT_BASE,8,1);
out_port(0,0);
out_port(0,1); // CS on
out_port(0,2); //
out_port(0,6); // vpp off
out_port(4,3); // VCC on, VCC=5V, Socket=24pin, /OE=0, read
wait_ticks (100000);
// for (i=0; i<0x40; i++) {
for (i=0; i<0x4000; i++) {
out_addr(i);
wait_ticks(100);
value=inb(PORT_BASE+4);
data[i]=value;
if ((i&0xf)==0) printf("%.4x:",i);
printf(" %.2x", value);
if ((i&0xf)==0xf) printf("\n");
}
out_port(0xf8,2); // led off
out_port(0,3); //VCC off
out_port(0,6); //VPP off
out_port(0,0);
file=fopen("dil24.bin","wb");
fwrite(data,1,sizeof(data),file);
fclose(file);
return 0;
}
void keyboard_main( ){
char status;
char key_code;
out_port(0x20, 0x20);
status = in_port(0x64); // io pressed key port for keyboards
if (status & 0x01) {
key_code = in_port(0x60); // io status key port for keyboard
if(key_code < 0)
return;
if(key_code == 0x1C) { // check if it's the enter key that was pressed
print_newline();
return;
}
VGA[curr_loc++] = keyboard_map[(unsigned char) key_code];
VGA[curr_loc++] = 0x07;
}
}
/* initialize keyboard interrupt requests */
void keyboard_init( ){
out_port(0x21 , 0xFD);
}
uint8_t GoLine(void)
{
register uint8_t li;
register uint8_t *lp;
register unsigned int bi;
//printf("\n#%d:%s\n",CLine,CmdInp);
//printf("\n*lnum=%d A=%d\n",CLine,Vars[0]);
Gp = CmdInp + 1;
switch(CmdInp[0]){
case STOP:
STOPPROG(ESTOP);
case BEEP:
lp = findchar(CmdInp, ',');
if(lp)
{
*lp = 0;
bi = ExpPars1();
Gp=lp+1;
Beep(bi,ExpPars1());
}
return(0);
case DIM:
Gp+=2;//(
li = ExpPars1();
if(CmdInp[1] != SIGNEDBYTE && CmdInp[1] != UNSIGNEDBYTE)//type of array
li = li << 1;//two byte on item
if(li <= (MAXBMEMSIZE-1)){
/* lp = Vars[TOVAR(CmdInp[1])];
if(lp > FirstPrgLine)
lfree(lp);*/
lp = lmalloc(li+1,LlP);
if(!lp)
STOPPROG(EALLOC);
*lp = CmdInp[1];//type of array
lp++;
//printf("\n*%p %c %d %d %s\n",lp,*(lp-1),*(lp-2),li,CmdInp);
li = CmdInp[2];//name of array
// if(SYMISVAR(li))
Vars[TOVAR(li)] = (unsigned int)lp;
return(0);
}
STOPPROG(EERROR);
return(0);
case LET:
lp = findchar(CmdInp, '=');
Gp = lp+1;
bi = ExpPars1();
// if(!SYMISVAR(li))
if(*(lp-1) == ')'){
*lp = 0;
Gp = CmdInp+2;// '('
li = ExpPars1();//array index
lp = (uint8_t *)Vars[TOVAR(CmdInp[1])];
//printf("\n+%p %c %d %d %d\n",lp,*(lp-1),*(lp-2),li,bi);
if(*(lp-2) > (li+2)){//
switch(*(lp-1)){//type of array
case SIGNEDBYTE:
*(((char *)lp + li)) = bi;
break;
case UNSIGNEDBYTE:
*(((uint8_t *)lp + li)) = bi;
break;
default:
// case SIGNEDWORD:
*(((int *)lp + li)) = bi;
break;
/* case UNSIGNEDWORD:
*(((unsigned int *)lp + li)) = bi;
break;
*/
}
}
else
STOPPROG(EERROR);//TODO
}
else
Vars[TOVAR(CmdInp[1])] = bi;
return(0);
case AT:
lp = findchar(CmdInp, ',');
if(lp)
{
*lp = 0;
li = ExpPars1();//x
if(li< LCDTWIDTH)
#ifdef AVR
xt=li*LCDSYMWIDTH;
else
xt=(LCDTWIDTH-1)*LCDSYMWIDTH;
#else
xt=li;
else
xt=(LCDTWIDTH-1);
#endif
Gp=lp+1;
li = ExpPars1();//y
if(li< LCDTHEIGHT)
yt=li;
else
yt=LCDTHEIGHT-1;
#ifdef AVR
st7565_command(CMD_SET_DISP_START_LINE | ((LCDTHEIGHT-1)*8)+8);
#else
printf( "%c[%d;%dH", 27, yt+1, xt+1 ); // установили курсор в позицию
fflush( stdout );
#endif
}
return(0);
case OUT:
lp = findchar(CmdInp, ',');
if(lp)
{
*lp = 0;
li = ExpPars1();//port
Gp=lp+1;
out_port(li,ExpPars1());
}
return(0);
case REM:
return(0);
case LOAD:
FreePrg();
ReplaceChar(CmdInp+2, '"', 0);
loadprg((const char *)(CmdInp+2));
PrgLineP = FirstPrgLine;
return(1);
case INPUT:
lp = (uint8_t *)(Vars + TOVAR(CmdInp[1]));//pointer to var
Gp++;//to '(' or 0
if(*Gp == '(')
li = ExpPars1();//index
else
li = 255;
lgets(CmdInp);
if(CmdInp[0]==BREAK_KEY)
STOPPROG(EINTERUPT);
Gp=CmdInp;
bi = ExpPars1();
if(li < MAXBMEMSIZE){
lp = (uint8_t *)(*((unsigned int *)lp));
if(*(lp-2) > (li+2)){//
switch(*(lp-1)){//type of array
case SIGNEDBYTE:
*(((char *)lp + li)) = bi;
break;
case UNSIGNEDBYTE:
*(((uint8_t *)lp + li)) = bi;
break;
default:
*(((int *)lp + li)) = bi;
break;
}
}
else
STOPPROG(EERROR);//TODO
}
else
*lp = (int)bi;
return(0);
case IF:
lp = findchar(CmdInp, THEN);
if(lp){
*lp = 0;
if(ExpPars1()){
strcpy((char *)CmdInp,(const char *)(lp+1));
return(2);;
}
}else
STOPPROG(EERROR);
return(0);
case PRINT:
li = strlen((const char *)CmdInp);
while(Gp && *Gp){
if(*Gp == '"'){
Gp++;
lp =findchar(Gp ,'"');
*lp = 0;
lputs((char *)(Gp));
Gp = lp+1;
}
else{
if(*Gp == '$'){
Gp++;
lputchar(ExpPars1());
}
else
lputint(ExpPars1());
}
//printf("\n++ %s\n",Gp);
Gp =findchar(Gp ,',');
if(Gp)
Gp++;
}
if(CmdInp[li-1]!=';')
lputchar('\n');
return(0);
case PAUSE:
bi = ExpPars1();
delay_ms(bi);
return(0);
case GOTO:
PrgLineP = GetPrgLine(ExpPars1(),0);
if(!PrgLineP){
STOPPROG(EGOTONOWHERE);
}
return(1) ;
case GOSUB:
SubStack[SubStackP] = PrgLineP->next;
SubStackP++;
if(SubStackP >= SMAX){
STOPPROG(EGSOVF);
}
PrgLineP = GetPrgLine(ExpPars1(),0);
if(!PrgLineP){
STOPPROG(EGOTONOWHERE);
}
return(1);
case RETURN:
if(SubStackP < 1){
STOPPROG(ERETWOG);
}
--SubStackP;
PrgLineP = SubStack[SubStackP];
return(1);
case FOR :
lp = findchar(CmdInp, TO);
if(lp){
*lp = 0;
Gp = CmdInp+ 3;
li = TOVAR(CmdInp[1]);
if(li>LMAX)
STOPPROG(ELOPSOVF);
Vars[li] = ExpPars1();
Gp = lp + 1;
LoopVar[li].var_to = ExpPars1();
LoopVar[li].line_begin = PrgLineP->next;
}else
STOPPROG(EERROR);
return(0);
case NEXT:
li = TOVAR(CmdInp[1]);
if(++Vars[li] <= LoopVar[li].var_to){
PrgLineP = LoopVar[li].line_begin;
return(1);
}
break;
}