static void kbic_read_block( PIA *pi, char * buf, int count )
{ int k, a, b;
switch (pi->mode) {
case 0: w0(0x98); w2(4); w2(6); w2(4);
for (k=0;k<count/2;k++) {
w2(1); w0(8); a = r1();
w0(0x28); b = r1();
buf[2*k] = j44(a,b);
w2(5); b = r1();
w0(8); a = r1();
buf[2*k+1] = j44(a,b);
w2(4);
}
break;
case 1: w0(0xb8); w2(4); w2(6); w2(4);
for (k=0;k<count/4;k++) {
w0(0xb8);
w2(4); w2(5);
w0(8); buf[4*k] = j53(r12w());
w0(0xb8); buf[4*k+1] = j53(r12w());
w2(4); w2(5);
buf[4*k+3] = j53(r12w());
w0(8); buf[4*k+2] = j53(r12w());
}
w2(4);
break;
case 2: w0(0x88); w2(4); w2(6); w2(4);
for (k=0;k<count/2;k++) {
w2(0xa0); w2(0xa1); buf[2*k] = r0();
w2(0xa5); buf[2*k+1] = r0();
}
w2(4);
break;
case 3: w0(0xa0); w2(4); w2(6); w2(4); w3(0);
for (k=0;k<count;k++) buf[k] = r4();
w2(4); w2(0); w2(4);
break;
case 4: w0(0xa0); w2(4); w2(6); w2(4); w3(0);
for (k=0;k<count/2;k++) ((u16 *)buf)[k] = r4w();
w2(4); w2(0); w2(4);
break;
case 5: w0(0xa0); w2(4); w2(6); w2(4); w3(0);
for (k=0;k<count/4;k++) ((u32 *)buf)[k] = r4l();
w2(4); w2(0); w2(4);
break;
}
}
static int epat_read_regr( PIA *pi, int cont, int regr )
{ int a, b, r;
r = regr + cont_map[cont];
switch (pi->mode) {
case 0: w0(r); w2(1); w2(3);
a = r1(); w2(4); b = r1();
return j44(a,b);
case 1: w0(0x40+r); w2(1); w2(4);
a = r1(); b = r2(); w0(0xff);
return j53(a,b);
case 2: w0(0x20+r); w2(1); w2(0x25);
a = r0(); w2(4);
return a;
case 3:
case 4:
case 5: w3(r); w2(0x24); a = r4(); w2(4);
return a;
}
return -1; /* never gets here */
}
static int kbic_read_regr( PIA *pi, int cont, int regr )
{ int a, b, s;
s = cont_map[cont];
switch (pi->mode) {
case 0: w0(regr|0x18|s); w2(4); w2(6); w2(4); w2(1); w0(8);
a = r1(); w0(0x28); b = r1(); w2(4);
return j44(a,b);
case 1: w0(regr|0x38|s); w2(4); w2(6); w2(4); w2(5); w0(8);
a = r12w(); w2(4);
return j53(a);
case 2: w0(regr|0x08|s); w2(4); w2(6); w2(4); w2(0xa5); w2(0xa1);
a = r0(); w2(4);
return a;
case 3:
case 4:
case 5: w0(0x20|s); w2(4); w2(6); w2(4); w3(regr);
a = r4(); b = r4(); w2(4); w2(0); w2(4);
return a;
}
return -1;
}
static int epia_read_regr( PIA *pi, int cont, int regr )
{ int a, b, r;
regr += cont_map[cont];
switch (pi->mode) {
case 0: r = regr^0x39;
w0(r); w2(1); w2(3); w0(r);
a = r1(); w2(1); b = r1(); w2(4);
return j44(a,b);
case 1: r = regr^0x31;
w0(r); w2(1); w0(r&0x37);
w2(3); w2(5); w0(r|0xf0);
a = r1(); b = r2(); w2(4);
return j53(a,b);
case 2: r = regr^0x29;
w0(r); w2(1); w2(0X21); w2(0x23);
a = r0(); w2(4);
return a;
case 3:
case 4:
case 5: w3(regr); w2(0x24); a = r4(); w2(4);
return a;
}
return -1;
}
static void epia_read_block( PIA *pi, char * buf, int count )
{ int k, ph, a, b;
switch (pi->mode) {
case 0: w0(0x81); w2(1); w2(3); w0(0xc1);
ph = 1;
for (k=0;k<count;k++) {
w2(2+ph); a = r1();
w2(4+ph); b = r1();
buf[k] = j44(a,b);
ph = 1 - ph;
}
w0(0); w2(4);
break;
case 1: w0(0x91); w2(1); w0(0x10); w2(3);
w0(0x51); w2(5); w0(0xd1);
ph = 1;
for (k=0;k<count;k++) {
w2(4+ph);
a = r1(); b = r2();
buf[k] = j53(a,b);
ph = 1 - ph;
}
w0(0); w2(4);
break;
case 2: w0(0x89); w2(1); w2(0x23); w2(0x21);
ph = 1;
for (k=0;k<count;k++) {
w2(0x24+ph);
buf[k] = r0();
ph = 1 - ph;
}
w2(6); w2(4);
break;
case 3: if (count > 512) WR(0x84,3);
w3(0); w2(0x24);
for (k=0;k<count;k++) buf[k] = r4();
w2(4); WR(0x84,0);
break;
case 4: if (count > 512) WR(0x84,3);
w3(0); w2(0x24);
for (k=0;k<count/2;k++) ((u16 *)buf)[k] = r4w();
w2(4); WR(0x84,0);
break;
case 5: if (count > 512) WR(0x84,3);
w3(0); w2(0x24);
for (k=0;k<count/4;k++) ((u32 *)buf)[k] = r4l();
w2(4); WR(0x84,0);
break;
}
}
static void epat_read_block( PIA *pi, char * buf, int count )
{ int k, ph, a, b;
switch (pi->mode) {
case 0: w0(7); w2(1); w2(3); w0(0xff);
ph = 0;
for(k=0;k<count;k++) {
if (k == count-1) w0(0xfd);
w2(6+ph); a = r1();
if (a & 8) b = a;
else { w2(4+ph); b = r1(); }
buf[k] = j44(a,b);
ph = 1 - ph;
}
w0(0); w2(4);
break;
case 1: w0(0x47); w2(1); w2(5); w0(0xff);
ph = 0;
for(k=0;k<count;k++) {
if (k == count-1) w0(0xfd);
w2(4+ph);
a = r1(); b = r2();
buf[k] = j53(a,b);
ph = 1 - ph;
}
w0(0); w2(4);
break;
case 2: w0(0x27); w2(1); w2(0x25); w0(0);
ph = 0;
for(k=0;k<count-1;k++) {
w2(0x24+ph);
buf[k] = r0();
ph = 1 - ph;
}
w2(0x26); w2(0x27); buf[count-1] = r0();
w2(0x25); w2(4);
break;
case 3: w3(0x80); w2(0x24);
for(k=0;k<count-1;k++) buf[k] = r4();
w2(4); w3(0xa0); w2(0x24); buf[count-1] = r4();
w2(4);
break;
case 4: w3(0x80); w2(0x24);
for(k=0;k<(count/2)-1;k++) ((u16 *)buf)[k] = r4w();
buf[count-2] = r4();
w2(4); w3(0xa0); w2(0x24); buf[count-1] = r4();
w2(4);
break;
case 5: w3(0x80); w2(0x24);
for(k=0;k<(count/4)-1;k++) ((u32 *)buf)[k] = r4l();
for(k=count-4;k<count-1;k++) buf[k] = r4();
w2(4); w3(0xa0); w2(0x24); buf[count-1] = r4();
w2(4);
break;
}
}