1 package com.atmel.fpslic;
5 import org.ibex.util.Log;
6 import static com.atmel.fpslic.FpslicConstants.*;
8 public abstract class Fpslic {
10 public Fpslic(int width, int height) { this.width = width; this.height = height; }
14 public int getWidth() { return width; }
15 public int getHeight() { return height; }
17 public abstract void flush();
18 public abstract void mode4(int z, int y, int x, int d);
19 public abstract byte mode4(int z, int y, int x);
21 public byte mode4zyx(int zyx) { return mode4(zyx>>24, (zyx>>16)&0xff, (zyx>>8)&0xff); }
22 public void mode4zyx(int zyx, int d, int invmask) { mode4(zyx>>24, (zyx>>16)&0xff, (zyx>>8)&0xff, d, invmask); }
23 public void mode4(int z, int y, int x, int d, int invmask) {
24 int old = mode4(z, y, x);
29 public void mode4zyx(int zyx, int bit, boolean set) { mode4(zyx>>24, (zyx>>16)&0xff, (zyx>>8)&0xff, bit, set); }
30 public void mode4(int z, int y, int x, int bit, boolean set) {
31 int old = mode4(z, y, x);
33 old |= set ? (1 << bit) : 0;
37 // Inner Classes ///////////////////////////////////////////////////////////////////////////////
39 public final class Sector {
42 public Sector(Cell c) { this((c.col/4)*4, (c.row/4)*4); }
43 private Sector(int col, int row) {
44 if (row % 4 != 0) throw new Error("Sector must be created with a multiple-of-4 row");
45 if (col % 4 != 0) throw new Error("Sector must be created with a multiple-of-4 col");
49 public Sector north() { return row+4>=getHeight() ? null : new Sector(col, row+4); }
50 public Sector south() { return row==0 ? null : new Sector(col, row-4); }
51 public Sector east() { return col+4>=getWidth() ? null : new Sector(col+4, row); }
52 public Sector west() { return col==0 ? null : new Sector(col-4, row); }
53 public Cell cell() { return Fpslic.this.cell(col, row); }
56 public final class SectorWire {
57 public final boolean global;
58 public final boolean horizontal;
59 public final int plane;
62 public SectorWire(boolean horizontal, int plane, int col, int row) {
63 this(horizontal, plane, col, row, false);
66 public void useColumnClock() {
67 // this is very poorly understood
68 if (horizontal) throw new RuntimeException();
69 mode4(0x25, (row>>2)+1, col, 0x80);
70 mode4(0x29, (row>>2), col, 0x40);
73 public SectorWire(boolean horizontal, int plane, int col, int row, boolean global) {
74 this.horizontal=horizontal;
77 this.col= horizontal ? (col & ~0x3) : col;
78 this.row=!horizontal ? (row & ~0x3) : row;
80 public SectorWire global() {
81 return new SectorWire(horizontal, plane, col, row, true);
83 public boolean isDriven() {
84 // FIXME: bridging connections (horiz-to-vert)
85 for(int i=0; i<4; i++)
86 if (cell(horizontal ? col+i : col,
87 horizontal ? row : row+i).out(plane)) return true;
88 // FIXME: sector switchbox drivers
91 private int z(int z) { return (horizontal ? 0x30 : 0x20) | z; }
92 public int code(boolean topleft) {
94 case 0: return z(8)+(topleft?0:1);
95 case 1: return z(6)+(topleft?0:1);
96 case 2: return z(2*(4-plane))+(topleft?0:1);
97 case 3: return z(2*(4-plane))+(topleft?0:1);
98 case 4: return z(2*(4-plane))+(topleft?0:1);
103 private final int fine() { return horizontal ? row : col; }
104 public final int coarse() { return horizontal ? col : row; }
105 private int _row() { return horizontal ? row : ((row)>>2); }
106 private int _col() { return horizontal ? ((col)>>2) : col; }
108 public SectorWire west() { return !horizontal ? null : col-4<0 ? null : new SectorWire(horizontal, plane, col-4, row); }
109 public SectorWire east() { return !horizontal ? null : col+4>=getWidth() ? null : new SectorWire(horizontal, plane, col+4, row); }
110 public SectorWire north() { return horizontal ? null : row+4>=getHeight() ? null : new SectorWire(horizontal, plane, col, row+4); }
111 public SectorWire south() { return horizontal ? null : row-4<0 ? null : new SectorWire(horizontal, plane, col, row-4); }
113 public String toString() {
115 (horizontal?(col+":"+(col+3)):(""+col))+","+
116 (horizontal?(row+"") :(row+":"+(row+3)))+
120 /** returns the ZYX0 coordinate of the byte controlling the switchbox that allows <tt>w</tt> to drive this wire */
121 public int switchbox(SectorWire w) {
122 if (w.horizontal==horizontal) {
123 if (w.plane!=plane) throw new Error();
124 if (Math.abs(w.coarse()-coarse())!=4) throw new Error(w.coarse() + " -- " + coarse());
125 boolean topleft = horizontal ? (w.coarse() < coarse()) : (w.coarse() > coarse());
126 int col = _col() + (( horizontal && !topleft) ? 1 : 0);
127 int row = _row() + ((!horizontal && topleft) ? 1 : 0);
128 return (code(topleft) << 24) | (row<<16) | (col<<8);
130 throw new Error("not implemented");
134 mode4zyx(switchbox(north()), (1<<6), (1<<6));
137 public void drives(SectorWire w, boolean enable) {
138 // FIXME: better error checks?
141 if (!global) val = 0x02;
145 if (w.global) { mask = mask << 3; val = val << 3; }
146 mode4zyx(switchbox(w), val, mask);
149 public boolean drives(SectorWire w) {
150 // FIXME: better error checks?
151 int connect = (mode4zyx(switchbox(w)) >> (global?3:0)) & 0x7;
152 return (connect & 0x2)!=0;
154 public SectorWire driverRight() {
155 //System.out.println("checking " + Integer.toString(code(true), 16) + " " +
156 //Integer.toString(_row(), 16) + " " + Integer.toString(_col(), 16));
157 int ret = mode4(z(code(true)), _row(), _col());
158 ret = (ret >> (global?3:0)) & 0x7;
161 case 1: return null; /* global wire on same side */
162 case 2: return new SectorWire(horizontal, plane, horizontal?(col+4):col, horizontal?row:(row+4));
163 case 4: return null; /* global wire on other side */
164 default: throw new Error("multiple drivers on " + this + "!");
168 public boolean touches(Cell c) {
171 ? (c.row==_row() && (_col()/4 == c.col/4))
172 : (c.col==_col() && (_row()/4 == c.row/4));
176 public final class SwitchBox {
177 public final boolean h;
178 public final int col;
179 public final int row;
180 public final int plane;
181 public SwitchBox(boolean h, int col, int row, int plane) { this.h = h; this.col = col; this.row = row; this.plane = plane; }
182 public SectorWire west(boolean global) { return !h ? null : global ? null : new SectorWire(h, col-4, row, plane); }
183 public SectorWire east(boolean global) { return !h ? null : global ? null : new SectorWire(h, col+4, row, plane); }
184 public SectorWire north(boolean global) { return !h ? null : global ? null : new SectorWire(h, col, row-4, plane); }
185 public SectorWire south(boolean global) { return !h ? null : global ? null : new SectorWire(h, col, row+4, plane); }
189 public Cell cell(int col, int row) {
190 if (col<0) return null;
191 if (row<0) return null;
192 if (col>=getWidth()) return null;
193 if (row>=getHeight()) return null;
194 return new Cell(col, row);
197 public final class Cell {
198 public final int col;
199 public final int row;
201 public void setColumnClock(int where) {
202 mode4(0x50, 0x00, col, where);
205 public String toString() { return "cell@("+col+","+row+")"; }
207 public Cell(int col, int row) {
212 public Fpslic fpslic() { return Fpslic.this; }
213 public int hashCode() { return col ^ row ^ Fpslic.this.hashCode(); }
214 public boolean equals(Object o) {
215 if (o==null || (!(o instanceof Cell))) return false;
217 return c.col == col && c.row == row && c.fpslic()==fpslic();
220 // Accessors for Neighbors //////////////////////////////////////////////////////////////////////////////
222 public SectorWire hwire(int plane) { return new SectorWire(true, plane, col, row); }
223 public SectorWire vwire(int plane) { return new SectorWire(false, plane, col, row); }
224 public Cell east() { return cell(col+1, row); }
225 public Cell west() { return cell(col-1, row); }
226 public Cell north() { return cell(col, row+1); }
227 public Cell south() { return cell(col, row-1); }
228 public Cell ne() { return cell(col+1, row+1); }
229 public Cell nw() { return cell(col-1, row+1); }
230 public Cell se() { return cell(col+1, row-1); }
231 public Cell sw() { return cell(col-1, row-1); }
232 public Sector sector() { return new Sector(this); }
234 /* bit positions mean: [MSB] zxy z_y zx_ z__ _xy __y _x_ ___ [LSB] */
235 public void lut(int xlut, int ylut) { xlut(xlut); ylut(ylut); }
236 public void xlut(int table) { mode4(7, row, col, (byte)(table & 0xff)); }
237 public byte xlut() { return (byte)(mode4(7, row, col) & 0xff); }
238 public String printXLut() { return FpslicUtil.printLut(xlut(), "x", "y", "t"); }
239 public String printXLutX() { return FpslicUtil.printLut(xlut(), str(xi(), "x"), str(yi(), "y"), str(ti_source(), "t")); }
241 public String str(int x, String def) {
243 case NORTH: return "n";
244 case SOUTH: return "s";
245 case EAST: return "e";
246 case WEST: return "w";
247 case NW: return "nw";
248 case SE: return "se";
249 case NE: return "ne";
250 case SW: return "sw";
251 case FB: return "fb";
252 case L0: return (hx(0)&&vx(0))?"HV0":hx(0)?"H0":vx(0)?"V0":"L0";
253 case L1: return (hx(1)&&vx(1))?"HV1":hx(1)?"H1":vx(1)?"V1":"L1";
254 case L2: return (hx(2)&&vx(2))?"HV2":hx(2)?"H2":vx(2)?"V2":"L2";
255 case L3: return (hx(3)&&vx(3))?"HV3":hx(3)?"H3":vx(3)?"V3":"L3";
256 case L4: return (hx(4)&&vx(4))?"HV4":hx(4)?"H4":vx(4)?"V4":"L4";
261 /* bit positions mean: [MSB] zxy zx_ z_y z__ _xy _x_ __y ___ [LSB] */
262 public void ylut(int table) { mode4(6, row, col, (byte)(table & 0xff)); }
263 public byte ylut() { return (byte)(mode4(6, row, col) & 0xff); }
264 public String printYLut() { return FpslicUtil.printLut(ylut(), "y", "x", "t"); }
265 public String printYLutX() { return FpslicUtil.printLut(ylut(), str(yi(), "y"), str(xi(), "x"), str(ti_source(), "t")) + Integer.toString(ylut() & 0xff, 16); }
267 public void ff_reset_value(boolean value) {
268 //mode4( /* FIXME WRONG!!! */, row, col, 3, !value); return;
271 public boolean ff_reset_value() { return false; }
272 public boolean columnClocked() {
276 public void out(int plane, boolean enable) {
278 case L0: mode4(0x00, row, col, 2, enable); return;
279 case L1: mode4(0x00, row, col, 3, enable); return;
280 case L2: mode4(0x00, row, col, 5, enable); return;
281 case L3: mode4(0x00, row, col, 4, enable); return;
282 case L4: mode4(0x00, row, col, 1, enable); return;
283 default: throw new RuntimeException("invalid argument");
287 public boolean out(int plane) {
289 case L0: return (mode4(0x00, row, col) & (1<<2)) != 0;
290 case L1: return (mode4(0x00, row, col) & (1<<3)) != 0;
291 case L2: return (mode4(0x00, row, col) & (1<<5)) != 0;
292 case L3: return (mode4(0x00, row, col) & (1<<4)) != 0;
293 case L4: return (mode4(0x00, row, col) & (1<<1)) != 0;
294 default: throw new RuntimeException("invalid argument");
298 public void h(int plane, boolean enable) {
300 case 0: mode4(0x08, row, col, 0, enable); return;
301 case 1: mode4(0x08, row, col, 2, enable); return;
302 case 2: mode4(0x08, row, col, 5, enable); return;
303 case 3: mode4(0x08, row, col, 6, enable); return;
304 case 4: mode4(0x00, row, col, 6, enable); return;
305 default: throw new RuntimeException("invalid argument");
309 public boolean hx(int plane) {
311 case 0: return (mode4(0x08, row, col) & (1<<0)) != 0;
312 case 1: return (mode4(0x08, row, col) & (1<<2)) != 0;
313 case 2: return (mode4(0x08, row, col) & (1<<5)) != 0;
314 case 3: return (mode4(0x08, row, col) & (1<<6)) != 0;
315 case 4: return (mode4(0x00, row, col) & (1<<6)) != 0;
316 default: throw new RuntimeException("invalid argument");
320 public void v(int plane, boolean enable) {
322 case 0: mode4(0x08, row, col, 1, enable); return;
323 case 1: mode4(0x08, row, col, 3, enable); return;
324 case 2: mode4(0x08, row, col, 4, enable); return;
325 case 3: mode4(0x08, row, col, 7, enable); return;
326 case 4: mode4(0x00, row, col, 7, enable); return;
327 default: throw new RuntimeException("invalid argument");
331 public boolean vx(int plane) {
333 case 0: return (mode4(0x08, row, col) & (1<<1)) != 0;
334 case 1: return (mode4(0x08, row, col) & (1<<3)) != 0;
335 case 2: return (mode4(0x08, row, col) & (1<<4)) != 0;
336 case 3: return (mode4(0x08, row, col) & (1<<7)) != 0;
337 case 4: return (mode4(0x00, row, col) & (1<<7)) != 0;
338 default: throw new RuntimeException("invalid argument");
343 public int ti_source() {
344 switch(mode4(1, row, col) & 0x30) {
345 case 0x20: return zi();
346 case 0x10: return FB;
347 case 0x00: return wi();
348 default: throw new Error("ack!");
353 switch(mode4(1, row, col) & 0x30) {
354 case 0x00: return TMUX_W;
355 case 0x10: return wi()==NONE ? TMUX_FB : TMUX_W_AND_FB;
356 case 0x20: return wi()==NONE ? TMUX_Z : TMUX_W_AND_Z;
357 case 0x30: throw new RuntimeException("illegal!");
358 default: return TMUX_W;
362 public void t(int code) {
365 case TMUX_W: result = 0x00; break;
366 case TMUX_Z: result = 0x20; break;
367 case TMUX_W_AND_Z: result = 0x20; break;
368 case TMUX_FB: result = 0x10; break;
369 case TMUX_W_AND_FB: result = 0x10; break;
370 default: result = 0x00; break;
372 mode4(1, row, col, result, 0x30);
375 private void fmux(int source) {
380 default: throw new Error("unknown argument to fmux()");
384 public boolean win_easable() {
389 return mode4(1, row, col) & 0x34;
392 public void t(boolean ignore_z_and_fb, boolean zm_drives_fb, boolean fb_drives_wm) {
393 // still not totally satisfied...
394 // need to find the bit that sets the w-mux off
395 // what does it mean for both bits (0x30) to be set to 1?
396 //if (fb && z) throw new RuntimeException("invalid combination");
404 // ttt => fb&w [0x34]
405 // ftt => fb&w [0x14]
406 // fft => fb&w [0x10]
410 // tft => fb&w [0x30]
411 if (ignore_z_and_fb) result |= 0x20;
412 if (zm_drives_fb) result |= 0x04;
413 if (fb_drives_wm) result |= 0x10;
414 mode4(1, row, col, result, 0x34);
418 public void c(int source) {
420 case XLUT: mode4(1, row, col, 0x00, 0xc0); break;
421 case YLUT: mode4(1, row, col, 0x40, 0xc0); break;
422 case ZMUX: mode4(1, row, col, 0x80, 0xc0); break;
423 default: throw new RuntimeException("Invalid Argument");
427 int cval = mode4(1, row, col) & 0xc0;
429 case 0x00: return XLUT;
430 case 0x40: return YLUT;
431 case 0x80: return ZMUX;
433 throw new Error("c() => " + cval);
435 public void b(boolean registered) { mode4(1, row, col, 3, !registered); }
436 public void f(boolean registered) { mode4(1, row, col, 2, !registered); }
437 public boolean xo() { return (mode4(1, row, col) & 0x01) != 0; }
438 public boolean yo() { return (mode4(1, row, col) & 0x02) != 0; }
439 public void xo(boolean center) { mode4(1, row, col, 0, center); }
440 public void yo(boolean center) { mode4(1, row, col, 1, center); }
442 public void xo(Cell c) {
443 if (c.row==row || c.col==col) { // use the y-input
453 public void yo(Cell c) {
454 if (!(c.row==row || c.col==col)) { // use the x-input
464 public boolean b() { return (mode4(1, row, col) & (1 << 3)) == 0; }
465 public boolean f() { return (mode4(1, row, col) & (1 << 2)) == 0; }
466 public boolean x() { return (mode4(1, row, col) & (1 << 1)) != 0; }
467 public boolean y() { return (mode4(1, row, col) & (1 << 0)) != 0; }
470 switch (mode4(0x02, row, col) & 0x3) {
474 default: throw new RuntimeException("invalid argument");
477 public void oe(int source) {
479 case NONE: mode4(0x02, row, col, 0, 0x3); break;
480 case H4: mode4(0x02, row, col, 1, 0x3); break;
481 case V4: mode4(0x02, row, col, 2, 0x3); break;
482 default: throw new RuntimeException("invalid argument");
487 // FIXME: can be multiple
488 if ((mode4(0x03, row, col) & (1<<4))!=0) return L4;
489 switch(mode4(0x05, row, col) & 0xff) {
490 case 0x80: return SW;
491 case (1<<6): return NE;
492 case (1<<5): return SE;
493 case (1<<4): return NW;
494 case (1<<3): return L0;
495 case (1<<2): return L1;
496 case (1<<1): return L2;
497 case (1<<0): return L3;
499 default: throw new Error();
503 public void xi(int source) {
505 case SW: mode4(0x03, row, col, 4, false); mode4(0x05, row, col, 1<<7); break;
506 case NE: mode4(0x03, row, col, 4, false); mode4(0x05, row, col, 1<<6); break;
507 case SE: mode4(0x03, row, col, 4, false); mode4(0x05, row, col, 1<<5); break;
508 case NW: mode4(0x03, row, col, 4, false); mode4(0x05, row, col, 1<<4); break;
510 case L0: mode4(0x03, row, col, 4, false); mode4(0x05, row, col, 1<<3); break;
511 case L1: mode4(0x03, row, col, 4, false); mode4(0x05, row, col, 1<<2); break;
512 case L2: mode4(0x03, row, col, 4, false); mode4(0x05, row, col, 1<<1); break;
513 case L3: mode4(0x03, row, col, 4, false); mode4(0x05, row, col, 1<<0); break;
514 case L4: mode4(0x03, row, col, 4, true); mode4(0x05, row, col, 0); break;
516 case NONE: mode4(0x03, row, col, 4, false); mode4(0x05, row, col, 0); break;
517 default: throw new RuntimeException("invalid argument");
521 public void xi(SectorWire sw) {
522 if (!sw.touches(this)) throw new RuntimeException("invalid argument");
526 public void xi(Cell c) {
527 if (c.row==row-1 && c.col==col-1) xi(SW);
528 else if (c.row==row+1 && c.col==col-1) xi(NW);
529 else if (c.row==row-1 && c.col==col+1) xi(SE);
530 else if (c.row==row+1 && c.col==col+1) xi(NE);
531 else throw new RuntimeException("invalid argument");
535 if ((mode4(0x02, row, col) & (1<<6))!=0) return L4;
536 switch(mode4(0x04, row, col) & 0xff) {
537 case (1<<7): return NORTH;
538 case (1<<5): return SOUTH;
539 case (1<<6): return WEST;
540 case (1<<4): return EAST;
541 case (1<<3): return L0;
542 case (1<<2): return L1;
543 case (1<<1): return L2;
544 case (1<<0): return L3;
546 default: throw new Error();
550 public void yi(int source) {
552 case NORTH: mode4(0x02, row, col, 6, false); mode4(0x04, row, col, 1<<7); break;
553 case SOUTH: mode4(0x02, row, col, 6, false); mode4(0x04, row, col, 1<<5); break;
554 case WEST: mode4(0x02, row, col, 6, false); mode4(0x04, row, col, 1<<6); break;
555 case EAST: mode4(0x02, row, col, 6, false); mode4(0x04, row, col, 1<<4); break;
556 case L4: mode4(0x02, row, col, 6, true); mode4(0x04, row, col, 0); break;
557 case L3: mode4(0x02, row, col, 6, false); mode4(0x04, row, col, 1<<0); break;
558 case L2: mode4(0x02, row, col, 6, false); mode4(0x04, row, col, 1<<1); break;
559 case L1: mode4(0x02, row, col, 6, false); mode4(0x04, row, col, 1<<2); break;
560 case L0: mode4(0x02, row, col, 6, false); mode4(0x04, row, col, 1<<3); break;
561 case NONE: mode4(0x02, row, col, 6, false); mode4(0x04, row, col, 0); break;
562 default: throw new RuntimeException("invalid argument");
566 public void yi(SectorWire sw) {
567 if (!sw.touches(this)) throw new RuntimeException("invalid argument");
571 public void yi(Cell c) {
572 if (c.row==row-1 && c.col==col) yi(SOUTH);
573 else if (c.row==row+1 && c.col==col) yi(NORTH);
574 else if (c.row==row && c.col==col-1) yi(WEST);
575 else if (c.row==row && c.col==col+1) yi(EAST);
576 else throw new RuntimeException("invalid argument");
579 public void wi(SectorWire sw) {
580 if (!sw.touches(this)) throw new RuntimeException("invalid argument");
584 public void wi(int source) {
586 case L4: mode4(0x03, row, col, 1<<5, 0xEC); break;
587 case L3: mode4(0x03, row, col, 1<<6, 0xEC); break;
588 case L2: mode4(0x03, row, col, 1<<7, 0xEC); break;
589 case L1: mode4(0x03, row, col, 1<<3, 0xEC); break;
590 case L0: mode4(0x03, row, col, 1<<2, 0xEC); break;
591 case NONE: mode4(0x03, row, col, 0, 0xEC); break;
592 default: throw new RuntimeException("invalid argument");
597 int who = mode4(0x03, row, col) & 0xEC;
599 case (1<<5): return L4;
600 case (1<<6): return L3;
601 case (1<<7): return L2;
602 case (1<<3): return L1;
603 case (1<<2): return L0;
604 case (1<<0): return NONE; /* huh? */
605 case (0): return NONE;
606 default: throw new RuntimeException("invalid argument: " + who);
611 public void zi(SectorWire sw) {
612 if (!sw.touches(this)) throw new RuntimeException("invalid argument");
616 public void zi(int source) {
618 case L4: mode4(0x02, row, col, 1<<7, 0xDB); break;
619 case L3: mode4(0x02, row, col, 1<<5, 0xDB); break;
620 case L2: mode4(0x02, row, col, 1<<4, 0xDB); break;
621 case L1: mode4(0x02, row, col, 1<<3, 0xDB); break;
622 case L0: mode4(0x02, row, col, 1<<2, 0xDB); break;
623 case NONE: mode4(0x02, row, col, 0, 0xDB); break;
624 default: throw new RuntimeException("invalid argument");
629 switch(mode4(0x02, row, col) & 0x9B) {
630 case (1<<7): return L4;
631 case (1<<5): return L3;
632 case (1<<4): return L2;
633 case (1<<3): return L1;
634 case (1<<2): return L0;
635 case (1<<1): return NONE; /* huh? */
636 case (1<<0): return NONE; /* huh? */
638 default: throw new RuntimeException("invalid argument: zi=="+(mode4(0x02, row, col) & 0x9B));
642 public Cell dir(int i) {
644 case NORTH: return north();
645 case SOUTH: return south();
646 case EAST: return east();
647 case WEST: return west();
648 case NW: return nw();
649 case SW: return sw();
650 case SE: return se();
651 case NE: return ne();
655 public int dir(Cell c) {
656 if (c.row==row-1 && c.col==col-1) return SW;
657 else if (c.row==row+1 && c.col==col-1) return NW;
658 else if (c.row==row-1 && c.col==col+1) return SE;
659 else if (c.row==row+1 && c.col==col+1) return NE;
660 else if (c.row==row-1 && c.col==col) return SOUTH;
661 else if (c.row==row+1 && c.col==col) return NORTH;
662 else if (c.row==row && c.col==col-1) return WEST;
663 else if (c.row==row && c.col==col+1) return EAST;
667 public void generalized_c_element() {
670 ylut(LUT_SELF & (~LUT_OTHER));
671 xlut((~LUT_SELF) | LUT_OTHER);
681 ylut((LUT_SELF & ~LUT_OTHER) | (LUT_Z & ~LUT_OTHER) | (LUT_Z & LUT_SELF & LUT_OTHER));
686 t(false, false, true);
692 // Relevance //////////////////////////////////////////////////////////////////////////////
693 public boolean relevant() {
694 return xo_relevant() || yo_relevant() || out_relevant();
697 public boolean xo_relevant() { return xo_relevant(NE) || xo_relevant(SE) || xo_relevant(NW) || xo_relevant(SW); }
698 public boolean xo_relevant(int direction) {
700 case NE: return ne() != null && ne().xi()==SW;
701 case NW: return nw() != null && nw().xi()==SE;
702 case SE: return se() != null && se().xi()==NW;
703 case SW: return sw() != null && sw().xi()==NE;
704 default: return false;
707 public boolean yo_relevant() { return yo_relevant(NORTH) || yo_relevant(SOUTH) || yo_relevant(EAST) || yo_relevant(WEST); }
708 public boolean yo_relevant(int direction) {
710 case NORTH: return north() != null && north().yi()==SOUTH /*&& north().yi_relevant()*/;
711 case EAST: return east() != null && east().yi()==WEST /*&& east().yi_relevant()*/;
712 case SOUTH: return south() != null && south().yi()==NORTH /*&& south().yi_relevant()*/;
713 case WEST: return west() != null && west().yi()==EAST /*&& west().yi_relevant()*/;
714 default: return false;
717 public boolean xi_relevant() { return xi_to_xlut_relevant() || xi_to_ylut_relevant(); }
718 public boolean yi_relevant() { return yi_to_xlut_relevant() || yi_to_ylut_relevant(); }
719 public boolean xi_to_ylut_relevant() { return (((ylut() & 0xcc) >> 2) != (ylut() & 0x33)); }
720 public boolean yi_to_xlut_relevant() { return (((xlut() & 0xcc) >> 2) != (xlut() & 0x33)); }
721 public boolean zi_to_xlut_relevant() { return (((xlut() & LUT_Z) >> 4) != (xlut() & LUT_Z)); }
722 public boolean zi_to_ylut_relevant() { return (((ylut() & LUT_Z) >> 4) != (ylut() & LUT_Z)); }
723 public boolean xi_to_xlut_relevant() { return (((xlut() & LUT_SELF) >> 1) != (xlut() & (LUT_SELF >> 1))); }
724 public boolean yi_to_ylut_relevant() { return (((ylut() & LUT_SELF) >> 1) != (ylut() & (LUT_SELF >> 1))); }
725 public boolean xlut_relevant() {
726 if ((c()==XLUT || c()==ZMUX) && c_relevant()) return true;
727 if (xo()) return false;
728 return xo_relevant();
730 public boolean ylut_relevant() {
731 if ((c()==YLUT || c()==ZMUX) && c_relevant()) return true;
732 if (yo()) return false;
733 return yo_relevant();
735 public boolean c_relevant() {
737 case 0x34: return true;
738 case 0x14: return true;
739 case 0x10: return true;
740 case 0x30: return true;
742 for(int i=0; i<5; i++)
745 if (xo() || yo()) return true;
749 public boolean register_relevant() {
750 if (!c_relevant()) return false;
751 if (f() && out_relevant()) return true;
752 if (f() && fb_relevant()) return true;
753 if (b() && xo()) return true;
754 if (b() && yo()) return true;
757 public boolean out_relevant() {
759 boolean connect = false;
760 for(int i=0; i<4; i++) {
765 if (out(L0+i)) out = true;
766 if (hx(L0+i)) connect = true;
767 if (vx(L0+i)) connect = true;
769 return out && connect;
772 public boolean fb_relevant() {
774 if (!(zi_to_xlut_relevant()) ||
775 !(zi_to_ylut_relevant())) return false;
777 case 0x34: return true;
778 case 0x14: return true;
779 case 0x10: return true;
780 case 0x30: return true;
790 public IOB iob_bot(int col, boolean primary) { return new IOB(col, 0, primary, true); }
791 public IOB iob_top(int col, boolean primary) { return new IOB(col, 1, primary, true); }
792 public IOB iob_left(int row, boolean primary) { return new IOB(0, row, primary, false); }
793 public IOB iob_right(int row, boolean primary) { return new IOB(1, row, primary, false); }
795 public IOB fromPin(int pin) {
796 if (pin >= 4 && pin <= 11) return io(pin-3);
797 if (pin >= 15 && pin <= 18) return io(pin-2);
798 if (pin >= 19 && pin <= 24) return io(pin);
799 if (pin >= 27 && pin <= 30) return io(pin-2);
800 if (pin >= 33 && pin <= 36) return io(pin);
801 if (pin >= 38 && pin <= 47) return io(pin+1);
804 if (pin >= 33 && pin <= 36) return io(pin+36);
805 if (pin >= 38 && pin <= 41) return io(pin+43);
806 if (pin >= 42 && pin <= 43) return io(pin+47);
807 if (pin >= 44 && pin <= 47) return io(pin+49);
808 if (pin >= 57 && pin <= 62) return io(pin+40);
809 if (pin >= 63 && pin <= 66) return io(pin+46);
810 if (pin >= 68 && pin <= 71) return io(pin+53);
811 if (pin >= 72 && pin <= 73) return io(pin+53);
812 if (pin >= 74 && pin <= 75) return io(pin+63);
813 if (pin >= 76 && pin <= 77) return io(143+(pin-76));
814 if (pin >= 80 && pin <= 81) return io(145+(pin-80));
815 if (pin >= 82 && pin <= 85) return io(151+(pin-82));
816 if (pin >= 86 && pin <= 89) return io(165+(pin-86));
817 if (pin >= 91 && pin <= 94) return io(177+(pin-91));
818 if (pin >= 95 && pin <= 96) return io(183+(pin-95));
819 if (pin >= 97 && pin <= 100) return io(189+(pin-97));
820 if (pin >= 161 && pin <= 164) return io(289+(pin-161));
821 if (pin >= 165 && pin <= 166) return io(297+(pin-165));
822 if (pin >= 167 && pin <= 168) return io(303+(pin-167));
823 if (pin >= 169 && pin <= 170) return io(309+(pin-169));
824 if (pin >= 172 && pin <= 173) return io(313+(pin-172));
825 if (pin >= 174 && pin <= 175) return io(325+(pin-174));
826 if (pin >= 176 && pin <= 179) return io(327+(pin-176));
827 if (pin >= 180 && pin <= 181) return io(335+(pin-180));
828 if (pin >= 184 && pin <= 185) return io(337+(pin-184));
829 if (pin >= 186 && pin <= 191) return io(343+(pin-186));
830 if (pin >= 192 && pin <= 193) return io(359+(pin-192));
831 if (pin >= 195 && pin <= 196) return io(363+(pin-195));
832 if (pin >= 197 && pin <= 200) return io(369+(pin-197));
833 if (pin >= 201 && pin <= 204) return io(381+(pin-201));
835 public io(int ionum) {
837 int cell = (94 - pin) / 2;
838 boolean primary = cell * 2 == (94-pin);
842 public final class IOB {
843 public final int col;
844 public final int row;
845 public final boolean primary;
846 public final boolean northsouth;
847 public IOB(int col, int row, boolean primary, boolean northsouth) {
850 this.northsouth = northsouth;
851 this.primary = primary;
854 public String dump() {
855 System.out.println("[ "+
856 (schmitt()?"schmitt ":"")+
857 (slew()==3?"fast ":slew()==2?"med ":slew()==1?"slow ":"slew-unknown ")+
863 public void enableOutput(int direction) {
870 // note: east-side IOBs should have slew=med, others slew=fast
871 slew((!northsouth && col==1) ? MEDIUM : FAST);
873 public void enableInput() {
878 public void useoem(boolean use) { mode4(z(3), row, col, 6, use); }
879 public boolean useoem() { return (mode4(z(3), row, col) & (1<<6))!=0; }
880 public void schmitt(boolean use) { mode4(z(0), row, col, 7, use); }
881 public boolean schmitt() { return (mode4(z(0), row, col) & (1<<7))!=0; }
883 public void slew(int slew) {
885 case FAST: mode4(z(0), row, col, 3<<5, 0x60); return;
886 case MEDIUM: mode4(z(0), row, col, 2<<5, 0x60); return;
887 case SLOW: mode4(z(0), row, col, 1<<5, 0x60); return;
888 default: throw new Error();
892 public void oem(int source) {
894 case ALWAYS_ON: mode4(z(3), row, col, 1<<5, 0x3f); return;
895 case ALWAYS_OFF: mode4(z(3), row, col, 0, 0x3f); return;
896 default: throw new Error();
900 private int z(int code) { return (northsouth ? 0x70 : 0x60) | (primary ? 0x00 : 0x04) | (code & 0x7); }
901 public void pullup() { mode4(z(0), row, col, 0x00<<1, 0x06); }
902 public void pulldown() { mode4(z(0), row, col, 0x03<<1, 0x06); }
903 public void pullnone() { mode4(z(0), row, col, 0x01<<1, 0x06); }
904 public void oe(boolean oe) {
905 int old = mode4(z(1), row, col) & (~(1<<5));
906 old |= oe ? 0 : (1<<5);
907 mode4(z(1), row, col, old & 0xff);
910 public void output(int which) {
913 mode4(z(1), row, col, 0, 0x1f); return;
914 case WEST: case EAST: case NORTH: case SOUTH:
915 mode4(z(1), row, col, 1<<0, 0x1f); return;
916 case NW: case SW: case NE: case SE:
917 mode4(z(1), row, col, 1<<1, 0x1f); return;
918 default: throw new Error();