1 package edu.berkeley.obits.device.atmel;
2 import static edu.berkeley.obits.device.atmel.AtmelDevice.Constants.*;
3 import edu.berkeley.obits.*;
4 import org.ibex.util.*;
10 /*private*/public final AtmelDevice dev;
11 private final int width;
12 private final int height;
14 public At40k(AtmelDevice dev, int width, int height) {
20 public static class At40k10 extends At40k {
21 public At40k10(AtmelDevice dev) { super(dev, 24, 24); }
24 public final class Sector {
27 public Sector(Cell c) { this((c.col/4)*4, (c.row/4)*4); }
28 private Sector(int col, int row) {
29 if (row % 4 != 0) throw new Error("Sector must be created with a multiple-of-4 row");
30 if (col % 4 != 0) throw new Error("Sector must be created with a multiple-of-4 col");
34 public Sector north() { return row+4>=height ? null : new Sector(col, row+4); }
35 public Sector south() { return row==0 ? null : new Sector(col, row-4); }
36 public Sector east() { return col+4>=width ? null : new Sector(col+4, row); }
37 public Sector west() { return col==0 ? null : new Sector(col-4, row); }
38 public Cell cell() { return At40k.this.cell(col, row); }
41 public final class SectorWire {
42 public final boolean global;
43 public final boolean horizontal;
44 public final int plane;
47 public SectorWire(boolean horizontal, int plane, int col, int row) {
48 this.horizontal=horizontal;
51 this.col= horizontal ? (col & ~0x3) : col;
52 this.row=!horizontal ? (row & ~0x3) : row;
54 public boolean isDriven() {
55 // FIXME: bridging connections (horiz-to-vert)
56 for(int i=0; i<4; i++)
57 if (cell(horizontal ? col+i : col,
58 horizontal ? row : row+i).out(plane)) return true;
59 // FIXME: sector switchbox drivers
62 private int z(int z) { return (horizontal ? 0x30 : 0x20) | z; }
63 public int code(boolean topleft) {
65 case 0: return z(6)+(topleft?0:1);
66 case 1: return z(8)+(topleft?0:1);
67 case 2: return z(2*(4-plane))+(topleft?0:1);
68 case 3: return z(2*(4-plane))+(topleft?0:1);
69 case 4: return z(2*(4-plane))+(topleft?0:1);
74 private final int fine() { return horizontal ? row : col; }
75 public final int coarse() { return horizontal ? col : row; }
76 private int _row() { return horizontal ? row : ((row)>>2); }
77 private int _col() { return horizontal ? ((col)>>2) : col; }
79 public SectorWire west() { return !horizontal ? null : col-4<0 ? null : new SectorWire(horizontal, plane, col-4, row); }
80 public SectorWire east() { return !horizontal ? null : col+4>=width ? null : new SectorWire(horizontal, plane, col+4, row); }
81 public SectorWire north() { return horizontal ? null : row+4>=height ? null : new SectorWire(horizontal, plane, col, row+4); }
82 public SectorWire south() { return horizontal ? null : row-4<0 ? null : new SectorWire(horizontal, plane, col, row-4); }
84 public String toString() {
86 (horizontal?(col+":"+(col+3)):(""+col))+","+
87 (horizontal?(row+"") :(row+":"+(row+3)))+
91 /** returns the ZYX0 coordinate of the byte controlling the switchbox that allows <tt>w</tt> to drive this wire */
92 public int switchbox(SectorWire w) {
93 if (w.horizontal==horizontal) {
94 if (w.plane!=plane) throw new Error();
95 if (Math.abs(w.coarse()-coarse())!=4) throw new Error(w.coarse() + " -- " + coarse());
96 boolean topleft = horizontal ? (w.coarse() < coarse()) : (w.coarse() > coarse());
97 int col = _col() + (( horizontal && !topleft) ? 1 : 0);
98 int row = _row() + ((!horizontal && topleft) ? 1 : 0);
99 return (code(topleft) << 24) | (row<<16) | (col<<8);
101 throw new Error("not implemented");
104 public void drives(SectorWire w, boolean enable) {
105 dev.mode4zyx(switchbox(w), enable?0x02:0x00, 0x07);
108 public boolean drives(SectorWire w) {
109 int connect = (dev.mode4zyx(switchbox(w)) >> (global?3:0)) & 0x7;
110 return (connect & 0x2)!=0;
112 public SectorWire driverRight() {
113 System.out.println("checking " + Integer.toString(code(true), 16) + " " + Integer.toString(_row(), 16) + " " + Integer.toString(_col(), 16));
114 int ret = dev.mode4(z(code(true)), _row(), _col());
115 ret = (ret >> (global?3:0)) & 0x7;
118 case 1: return null; /* global wire on same side */
119 case 2: return new SectorWire(horizontal, plane, horizontal?(col+4):col, horizontal?row:(row+4));
120 case 4: return null; /* global wire on other side */
121 default: throw new Error("multiple drivers on " + this + "!");
126 public final class SwitchBox {
127 public final boolean h;
128 public final int col;
129 public final int row;
130 public final int plane;
131 public SwitchBox(boolean h, int col, int row, int plane) { this.h = h; this.col = col; this.row = row; this.plane = plane; }
132 public SectorWire west(boolean global) { return !h ? null : global ? null : new SectorWire(h, col-4, row, plane); }
133 public SectorWire east(boolean global) { return !h ? null : global ? null : new SectorWire(h, col+4, row, plane); }
134 public SectorWire north(boolean global) { return !h ? null : global ? null : new SectorWire(h, col, row-4, plane); }
135 public SectorWire south(boolean global) { return !h ? null : global ? null : new SectorWire(h, col, row+4, plane); }
139 public Cell cell(int col, int row) {
140 if (col<0) return null;
141 if (row<0) return null;
142 if (col>=width) return null;
143 if (row>=height) return null;
144 return new Cell(col, row);
147 public final class Cell {
148 public final int col;
149 public final int row;
151 public Cell(int col, int row) {
156 // Accessors for Neighbors //////////////////////////////////////////////////////////////////////////////
158 public SectorWire hwire(int plane) { return new SectorWire(true, plane, col, row); }
159 public SectorWire vwire(int plane) { return new SectorWire(false, plane, col, row); }
160 public Cell east() { return cell(col+1, row); }
161 public Cell west() { return cell(col-1, row); }
162 public Cell north() { return cell(col, row+1); }
163 public Cell south() { return cell(col, row-1); }
164 public Cell ne() { return cell(col+1, row+1); }
165 public Cell nw() { return cell(col-1, row+1); }
166 public Cell se() { return cell(col+1, row-1); }
167 public Cell sw() { return cell(col-1, row-1); }
168 public Sector sector() { return new Sector(this); }
170 /* bit positions mean: [MSB] zxy z_y zx_ z__ _xy __y _x_ ___ [LSB] */
171 public void lut(int xlut, int ylut) { xlut(xlut); ylut(ylut); }
172 public void xlut(int table) { dev.mode4(7, row, col, (byte)(table & 0xff)); }
173 public byte xlut() { return (byte)(dev.mode4(7, row, col) & 0xff); }
174 public String printXLut() { return printLut(xlut(), "x", "y", "t"); }
175 public String printXLutX() { return printLut(xlut(), str(xi(), "x"), str(yi(), "y"), str(ti_source(), "t")); }
177 public String str(int x, String def) {
179 case NORTH: return "n";
180 case SOUTH: return "s";
181 case EAST: return "e";
182 case WEST: return "w";
183 case NW: return "nw";
184 case SE: return "se";
185 case NE: return "ne";
186 case SW: return "sw";
187 case FB: return "fb";
188 case L0: return (hx(0)&&vx(0))?"HV0":hx(0)?"H0":vx(0)?"V0":"L0";
189 case L1: return (hx(1)&&vx(1))?"HV1":hx(1)?"H1":vx(1)?"V1":"L1";
190 case L2: return (hx(2)&&vx(2))?"HV2":hx(2)?"H2":vx(2)?"V2":"L2";
191 case L3: return (hx(3)&&vx(3))?"HV3":hx(3)?"H3":vx(3)?"V3":"L3";
192 case L4: return (hx(4)&&vx(4))?"HV4":hx(4)?"H4":vx(4)?"V4":"L4";
197 /* bit positions mean: [MSB] zxy zx_ z_y z__ _xy _x_ __y ___ [LSB] */
198 public void ylut(int table) { dev.mode4(6, row, col, (byte)(table & 0xff)); }
199 public byte ylut() { return (byte)(dev.mode4(6, row, col) & 0xff); }
200 public String printYLut() { return printLut(ylut(), "y", "x", "t"); }
201 public String printYLutX() { return printLut(ylut(), str(yi(), "y"), str(xi(), "x"), str(ti_source(), "t")) + Integer.toString(ylut() & 0xff, 16); }
203 public void ff_reset_value(boolean value) {
204 //dev.mode4( /* FIXME WRONG!!! */, row, col, 3, !value); return;
207 public boolean ff_reset_value() { return false; }
208 public boolean columnClocked() {
212 public void out(int plane, boolean enable) {
214 case L0: dev.mode4(0x00, row, col, 2, enable); return;
215 case L1: dev.mode4(0x00, row, col, 3, enable); return;
216 case L2: dev.mode4(0x00, row, col, 5, enable); return;
217 case L3: dev.mode4(0x00, row, col, 4, enable); return;
218 case L4: dev.mode4(0x00, row, col, 1, enable); return;
219 default: throw new RuntimeException("invalid argument");
223 public boolean out(int plane) {
225 case L0: return (dev.mode4(0x00, row, col) & (1<<2)) != 0;
226 case L1: return (dev.mode4(0x00, row, col) & (1<<3)) != 0;
227 case L2: return (dev.mode4(0x00, row, col) & (1<<5)) != 0;
228 case L3: return (dev.mode4(0x00, row, col) & (1<<4)) != 0;
229 case L4: return (dev.mode4(0x00, row, col) & (1<<1)) != 0;
230 default: throw new RuntimeException("invalid argument");
234 public void h(int plane, boolean enable) {
236 case 0: dev.mode4(0x08, row, col, 2, enable); return;
237 case 1: dev.mode4(0x08, row, col, 0, enable); return;
238 case 2: dev.mode4(0x08, row, col, 5, enable); return;
239 case 3: dev.mode4(0x08, row, col, 6, enable); return;
240 case 4: dev.mode4(0x00, row, col, 6, enable); return;
241 default: throw new RuntimeException("invalid argument");
245 public boolean hx(int plane) {
247 case 0: return (dev.mode4(0x08, row, col) & (1<<2)) != 0;
248 case 1: return (dev.mode4(0x08, row, col) & (1<<0)) != 0;
249 case 2: return (dev.mode4(0x08, row, col) & (1<<5)) != 0;
250 case 3: return (dev.mode4(0x08, row, col) & (1<<6)) != 0;
251 case 4: return (dev.mode4(0x00, row, col) & (1<<6)) != 0;
252 default: throw new RuntimeException("invalid argument");
256 public void v(int plane, boolean enable) {
258 case 0: dev.mode4(0x08, row, col, 1, enable); return;
259 case 1: dev.mode4(0x08, row, col, 3, enable); return;
260 case 2: dev.mode4(0x08, row, col, 4, enable); return;
261 case 3: dev.mode4(0x08, row, col, 7, enable); return;
262 case 4: dev.mode4(0x00, row, col, 7, enable); return;
263 default: throw new RuntimeException("invalid argument");
267 public boolean vx(int plane) {
269 case 0: return (dev.mode4(0x08, row, col) & (1<<1)) != 0;
270 case 1: return (dev.mode4(0x08, row, col) & (1<<3)) != 0;
271 case 2: return (dev.mode4(0x08, row, col) & (1<<4)) != 0;
272 case 3: return (dev.mode4(0x08, row, col) & (1<<7)) != 0;
273 case 4: return (dev.mode4(0x00, row, col) & (1<<7)) != 0;
274 default: throw new RuntimeException("invalid argument");
279 public int ti_source() {
280 switch(dev.mode4(1, row, col) & 0x30) {
281 case 0x20: return zi();
282 case 0x10: return FB;
283 case 0x00: return wi();
284 default: throw new Error("ack!");
289 System.err.println("found " + (dev.mode4(1, row, col) & 0x34));
290 switch(dev.mode4(1, row, col) & 0x34) {
291 case 0x20: return TMUX_Z;
292 case 0x24: return TMUX_W_AND_Z;
293 case 0x34: return TMUX_FB;
294 case 0x14: return TMUX_W_AND_FB;
295 case 0x00: return TMUX_W;
296 //default: throw new RuntimeException("unknown!");
297 default: return TMUX_W;
301 public void t(int code) {
304 case TMUX_Z: result = 0x20; break; // TOTALLYBOGUS throw new Error("not implemented, but should be possible");
305 case TMUX_W_AND_Z: result = 0x24; break;
306 case TMUX_FB: result = 0x34; break; /* I think this is actually W_AND_FB, sadly */
307 case TMUX_W_AND_FB: result = 0x14; break;
308 case TMUX_W: result = 0x00; break;
309 //default: throw new RuntimeException("unknown code! " + code);
310 default: result = 0x00; break;
312 dev.mode4(1, row, col, result, 0x34);
315 private void fmux(int source) {
320 default: throw new Error("unknown argument to fmux()");
324 public boolean win_easable() {
329 return dev.mode4(1, row, col) & 0x34;
332 public void t(boolean ignore_z_and_fb, boolean zm_drives_fb, boolean fb_drives_wm) {
333 // still not totally satisfied...
334 // need to find the bit that sets the w-mux off
335 // what does it mean for both bits (0x30) to be set to 1?
336 //if (fb && z) throw new RuntimeException("invalid combination");
344 // ttt => fb&w [0x34]
345 // ftt => fb&w [0x14]
346 // fft => fb&w [0x10]
350 // tft => fb&w [0x30]
351 if (ignore_z_and_fb) result |= 0x20;
352 if (zm_drives_fb) result |= 0x04;
353 if (fb_drives_wm) result |= 0x10;
354 dev.mode4(1, row, col, result, 0x34);
358 public void c(int source) {
360 case XLUT: dev.mode4(1, row, col, 0x00, 0xc0); break;
361 case YLUT: dev.mode4(1, row, col, 0x40, 0xc0); break;
362 case ZMUX: dev.mode4(1, row, col, 0x80, 0xc0); break;
363 default: throw new RuntimeException("Invalid Argument");
367 int cval = dev.mode4(1, row, col) & 0xc0;
369 case 0x00: return XLUT;
370 case 0x40: return YLUT;
371 case 0x80: return ZMUX;
373 throw new Error("c() => " + cval);
375 public void b(boolean registered) { dev.mode4(1, row, col, 3, !registered); }
376 public void f(boolean registered) { dev.mode4(1, row, col, 2, !registered); }
377 public boolean xo() { return (dev.mode4(1, row, col) & 0x01) != 0; }
378 public boolean yo() { return (dev.mode4(1, row, col) & 0x02) != 0; }
379 public void xo(boolean center) { dev.mode4(1, row, col, 0, center); }
380 public void yo(boolean center) { dev.mode4(1, row, col, 1, center); }
381 public boolean b() { return (dev.mode4(1, row, col) & (1 << 3)) == 0; }
382 public boolean f() { return (dev.mode4(1, row, col) & (1 << 2)) == 0; }
383 public boolean x() { return (dev.mode4(1, row, col) & (1 << 1)) != 0; }
384 public boolean y() { return (dev.mode4(1, row, col) & (1 << 0)) != 0; }
387 switch (dev.mode4(0x02, row, col) & 0x3) {
391 default: throw new RuntimeException("invalid argument");
394 public void oe(int source) {
396 case NONE: dev.mode4(0x02, row, col, 0, 0x3); break;
397 case H4: dev.mode4(0x02, row, col, 1, 0x3); break;
398 case V4: dev.mode4(0x02, row, col, 2, 0x3); break;
399 default: throw new RuntimeException("invalid argument");
404 // FIXME: can be multiple
405 if ((dev.mode4(0x03, row, col) & (1<<4))!=0) return L4;
406 switch(dev.mode4(0x05, row, col) & 0xff) {
407 case 0x80: return SW;
408 case (1<<6): return NE;
409 case (1<<5): return SE;
410 case (1<<4): return NW;
411 case (1<<3): return L0;
412 case (1<<2): return L1;
413 case (1<<1): return L2;
414 case (1<<0): return L3;
416 default: throw new Error();
420 public void xi(int source) {
422 case SW: dev.mode4(0x03, row, col, 4, false); dev.mode4(0x05, row, col, 1<<7); break;
423 case NE: dev.mode4(0x03, row, col, 4, false); dev.mode4(0x05, row, col, 1<<6); break;
424 case SE: dev.mode4(0x03, row, col, 4, false); dev.mode4(0x05, row, col, 1<<5); break;
425 case NW: dev.mode4(0x03, row, col, 4, false); dev.mode4(0x05, row, col, 1<<4); break;
426 case L4: dev.mode4(0x03, row, col, 4, true); dev.mode4(0x05, row, col, 0); break;
427 case L3: dev.mode4(0x03, row, col, 4, false); dev.mode4(0x05, row, col, 1<<0); break;
428 case L2: dev.mode4(0x03, row, col, 4, false); dev.mode4(0x05, row, col, 1<<1); break;
429 case L1: dev.mode4(0x03, row, col, 4, false); dev.mode4(0x05, row, col, 1<<2); break;
430 case L0: dev.mode4(0x03, row, col, 4, false); dev.mode4(0x05, row, col, 1<<3); break;
431 case NONE: dev.mode4(0x03, row, col, 4, false); dev.mode4(0x05, row, col, 0); break;
432 default: throw new RuntimeException("invalid argument");
437 if ((dev.mode4(0x02, row, col) & (1<<6))!=0) return L4;
438 switch(dev.mode4(0x04, row, col) & 0xff) {
439 case 0x80: return NORTH;
440 case (1<<5): return SOUTH;
441 case (1<<6): return WEST;
442 case (1<<4): return EAST;
443 case (1<<3): return L0;
444 case (1<<2): return L1;
445 case (1<<1): return L2;
446 case (1<<0): return L3;
448 default: throw new Error();
452 public void yi(int source) {
454 case NORTH: dev.mode4(0x02, row, col, 6, false); dev.mode4(0x04, row, col, 1<<7); break;
455 case SOUTH: dev.mode4(0x02, row, col, 6, false); dev.mode4(0x04, row, col, 1<<5); break;
456 case WEST: dev.mode4(0x02, row, col, 6, false); dev.mode4(0x04, row, col, 1<<6); break;
457 case EAST: dev.mode4(0x02, row, col, 6, false); dev.mode4(0x04, row, col, 1<<4); break;
458 case L4: dev.mode4(0x02, row, col, 6, true); dev.mode4(0x04, row, col, 0); break;
459 case L3: dev.mode4(0x02, row, col, 6, false); dev.mode4(0x04, row, col, 1<<0); break;
460 case L2: dev.mode4(0x02, row, col, 6, false); dev.mode4(0x04, row, col, 1<<1); break;
461 case L1: dev.mode4(0x02, row, col, 6, false); dev.mode4(0x04, row, col, 1<<2); break;
462 case L0: dev.mode4(0x02, row, col, 6, false); dev.mode4(0x04, row, col, 1<<3); break;
463 case NONE: dev.mode4(0x02, row, col, 6, false); dev.mode4(0x04, row, col, 0); break;
464 default: throw new RuntimeException("invalid argument");
468 public void wi(int source) {
470 case L4: dev.mode4(0x03, row, col, 1<<5, 0xEC); break;
471 case L3: dev.mode4(0x03, row, col, 1<<6, 0xEC); break;
472 case L2: dev.mode4(0x03, row, col, 1<<7, 0xEC); break;
473 case L1: dev.mode4(0x03, row, col, 1<<3, 0xEC); break;
474 case L0: dev.mode4(0x03, row, col, 1<<2, 0xEC); break;
475 case NONE: dev.mode4(0x03, row, col, 0, 0xEC); break;
476 default: throw new RuntimeException("invalid argument");
481 int who = dev.mode4(0x03, row, col) & 0xEC;
483 case (1<<5): return L4;
484 case (1<<6): return L3;
485 case (1<<7): return L2;
486 case (1<<3): return L1;
487 case (1<<2): return L0;
488 case (1<<0): return NONE; /* huh? */
489 case (0): return NONE;
490 default: throw new RuntimeException("invalid argument: " + who);
495 public void zi(int source) {
497 case L4: dev.mode4(0x02, row, col, 1<<7, 0xDB); break;
498 case L3: dev.mode4(0x02, row, col, 1<<5, 0xDB); break;
499 case L2: dev.mode4(0x02, row, col, 1<<4, 0xDB); break;
500 case L1: dev.mode4(0x02, row, col, 1<<3, 0xDB); break;
501 case L0: dev.mode4(0x02, row, col, 1<<2, 0xDB); break;
502 case NONE: dev.mode4(0x02, row, col, 0, 0xDB); break;
503 default: throw new RuntimeException("invalid argument");
508 switch(dev.mode4(0x02, row, col) & 0xDB) {
509 case (1<<7): return L4;
510 case (1<<5): return L3;
511 case (1<<4): return L2;
512 case (1<<3): return L1;
513 case (1<<2): return L0;
514 case (1<<1): return NONE; /* huh? */
515 case (1<<0): return NONE; /* huh? */
517 default: throw new RuntimeException("invalid argument: zi=="+(dev.mode4(0x02, row, col) & 0xDB));
522 // Relevance //////////////////////////////////////////////////////////////////////////////
524 public boolean xo_relevant() { return xo_relevant(NE) || xo_relevant(SE) || xo_relevant(NW) || xo_relevant(SW); }
525 public boolean xo_relevant(int direction) {
527 case NE: return ne() != null && ne().xi()==SW /*&& ne().xi_relevant()*/;
528 case NW: return nw() != null && nw().xi()==SE /*&& nw().xi_relevant()*/;
529 case SE: return se() != null && se().xi()==NW /*&& se().xi_relevant()*/;
530 case SW: return sw() != null && sw().xi()==NE /*&& sw().xi_relevant()*/;
531 default: return false;
534 public boolean yo_relevant() { return yo_relevant(NORTH) || yo_relevant(SOUTH) || yo_relevant(EAST) || yo_relevant(WEST); }
535 public boolean yo_relevant(int direction) {
537 case NORTH: return north() != null && north().yi()==SOUTH /*&& north().yi_relevant()*/;
538 case EAST: return east() != null && east().yi()==WEST /*&& east().yi_relevant()*/;
539 case SOUTH: return south() != null && south().yi()==NORTH /*&& south().yi_relevant()*/;
540 case WEST: return west() != null && west().yi()==EAST /*&& west().yi_relevant()*/;
541 default: return false;
544 public boolean xi_relevant() { return xi_to_xlut_relevant() || xi_to_ylut_relevant(); }
545 public boolean yi_relevant() { return yi_to_xlut_relevant() || yi_to_ylut_relevant(); }
546 public boolean xi_to_ylut_relevant() { return (((ylut() & 0xcc) >> 2) != (ylut() & 0x33)); }
547 public boolean yi_to_xlut_relevant() { return (((xlut() & 0xcc) >> 2) != (xlut() & 0x33)); }
548 public boolean zi_to_xlut_relevant() { return (((xlut() & LUT_Z) >> 4) != (xlut() & LUT_Z)); }
549 public boolean zi_to_ylut_relevant() { return (((ylut() & LUT_Z) >> 4) != (ylut() & LUT_Z)); }
550 public boolean xi_to_xlut_relevant() { return (((xlut() & LUT_SELF) >> 1) != (xlut() & (LUT_SELF >> 1))); }
551 public boolean yi_to_ylut_relevant() { return (((ylut() & LUT_SELF) >> 1) != (ylut() & (LUT_SELF >> 1))); }
552 public boolean xlut_relevant() {
553 if ((c()==XLUT || c()==ZMUX) && c_relevant()) return true;
554 if (xo()) return false;
555 return xo_relevant();
557 public boolean ylut_relevant() {
558 if ((c()==YLUT || c()==ZMUX) && c_relevant()) return true;
559 if (yo()) return false;
560 return yo_relevant();
562 public boolean c_relevant() {
564 case 0x34: return true;
565 case 0x14: return true;
566 case 0x10: return true;
567 case 0x30: return true;
569 for(int i=0; i<5; i++)
572 if (xo() || yo()) return true;
576 public boolean register_relevant() {
577 if (!c_relevant()) return false;
578 if (f() && out_relevant()) return true;
579 if (f() && fb_relevant()) return true;
580 if (b() && xo()) return true;
581 if (b() && yo()) return true;
584 public boolean out_relevant() {
586 boolean connect = false;
587 for(int i=0; i<4; i++) {
588 if (out(L0+i)) out = true;
589 if (hx(L0+i)) connect = true;
590 if (vx(L0+i)) connect = true;
592 return out && connect;
594 public boolean fb_relevant() {
595 if (!(zi_to_xlut_relevant()) ||
596 !(zi_to_ylut_relevant())) return false;
598 case 0x34: return true;
599 case 0x14: return true;
600 case 0x10: return true;
601 case 0x30: return true;
609 public IOB iob_bot(int col, boolean primary) { return new IOB(col, 0, primary, true); }
610 public IOB iob_top(int col, boolean primary) { return new IOB(col, 1, primary, true); }
611 public IOB iob_left(int row, boolean primary) { return new IOB(0, row, primary, false); }
612 public IOB iob_right(int row, boolean primary) { return new IOB(1, row, primary, false); }
614 public IOB fromPin(int pin) {
615 if (pin >= 4 && pin <= 11) return io(pin-3);
616 if (pin >= 15 && pin <= 18) return io(pin-2);
617 if (pin >= 19 && pin <= 24) return io(pin);
618 if (pin >= 27 && pin <= 30) return io(pin-2);
619 if (pin >= 33 && pin <= 36) return io(pin);
620 if (pin >= 38 && pin <= 47) return io(pin+1);
623 if (pin >= 33 && pin <= 36) return io(pin+36);
624 if (pin >= 38 && pin <= 41) return io(pin+43);
625 if (pin >= 42 && pin <= 43) return io(pin+47);
626 if (pin >= 44 && pin <= 47) return io(pin+49);
627 if (pin >= 57 && pin <= 62) return io(pin+40);
628 if (pin >= 63 && pin <= 66) return io(pin+46);
629 if (pin >= 68 && pin <= 71) return io(pin+53);
630 if (pin >= 72 && pin <= 73) return io(pin+53);
631 if (pin >= 74 && pin <= 75) return io(pin+63);
632 if (pin >= 76 && pin <= 77) return io(143+(pin-76));
633 if (pin >= 80 && pin <= 81) return io(145+(pin-80));
634 if (pin >= 82 && pin <= 85) return io(151+(pin-82));
635 if (pin >= 86 && pin <= 89) return io(165+(pin-86));
636 if (pin >= 91 && pin <= 94) return io(177+(pin-91));
637 if (pin >= 95 && pin <= 96) return io(183+(pin-95));
638 if (pin >= 97 && pin <= 100) return io(189+(pin-97));
639 if (pin >= 161 && pin <= 164) return io(289+(pin-161));
640 if (pin >= 165 && pin <= 166) return io(297+(pin-165));
641 if (pin >= 167 && pin <= 168) return io(303+(pin-167));
642 if (pin >= 169 && pin <= 170) return io(309+(pin-169));
643 if (pin >= 172 && pin <= 173) return io(313+(pin-172));
644 if (pin >= 174 && pin <= 175) return io(325+(pin-174));
645 if (pin >= 176 && pin <= 179) return io(327+(pin-176));
646 if (pin >= 180 && pin <= 181) return io(335+(pin-180));
647 if (pin >= 184 && pin <= 185) return io(337+(pin-184));
648 if (pin >= 186 && pin <= 191) return io(343+(pin-186));
649 if (pin >= 192 && pin <= 193) return io(359+(pin-192));
650 if (pin >= 195 && pin <= 196) return io(363+(pin-195));
651 if (pin >= 197 && pin <= 200) return io(369+(pin-197));
652 if (pin >= 201 && pin <= 204) return io(381+(pin-201));
654 public io(int ionum) {
656 int cell = (94 - pin) / 2;
657 boolean primary = cell * 2 == (94-pin);
661 public final class IOB {
662 public final int col;
663 public final int row;
664 public final boolean primary;
665 public final boolean northsouth;
666 public IOB(int col, int row, boolean primary, boolean northsouth) {
669 this.northsouth = northsouth;
670 this.primary = primary;
673 public String dump() {
674 System.out.println("[ "+
675 (schmitt()?"schmitt ":"")+
676 (slew()==3?"fast ":slew()==2?"med ":slew()==1?"slow ":"slew-unknown ")+
682 public void enableOutput(int direction) {
689 // note: east-side IOBs should have slew=med, others slew=fast
690 slew((!northsouth && col==1) ? MEDIUM : FAST);
692 public void enableInput() {
697 public void useoem(boolean use) { dev.mode4(z(3), row, col, 6, use); }
698 public boolean useoem() { return (dev.mode4(z(3), row, col) & (1<<6))!=0; }
699 public void schmitt(boolean use) { dev.mode4(z(0), row, col, 7, use); }
700 public boolean schmitt() { return (dev.mode4(z(0), row, col) & (1<<7))!=0; }
702 public void slew(int slew) {
704 case FAST: dev.mode4(z(0), row, col, 3<<5, 0x60); return;
705 case MEDIUM: dev.mode4(z(0), row, col, 2<<5, 0x60); return;
706 case SLOW: dev.mode4(z(0), row, col, 1<<5, 0x60); return;
707 default: throw new Error();
711 public void oem(int source) {
713 case ALWAYS_ON: dev.mode4(z(3), row, col, 1<<5, 0x3f); return;
714 case ALWAYS_OFF: dev.mode4(z(3), row, col, 0, 0x3f); return;
715 default: throw new Error();
719 private int z(int code) { return (northsouth ? 0x70 : 0x60) | (primary ? 0x00 : 0x04) | (code & 0x7); }
720 public void pullup() { dev.mode4(z(0), row, col, 0x00<<1, 0x06); }
721 public void pulldown() { dev.mode4(z(0), row, col, 0x03<<1, 0x06); }
722 public void pullnone() { dev.mode4(z(0), row, col, 0x01<<1, 0x06); }
723 public void oe(boolean oe) {
724 int old = dev.mode4(z(1), row, col) & (~(1<<5));
725 old |= oe ? 0 : (1<<5);
726 dev.mode4(z(1), row, col, old & 0xff);
729 public void output(int which) {
732 dev.mode4(z(1), row, col, 0, 0x1f); return;
733 case WEST: case EAST: case NORTH: case SOUTH:
734 dev.mode4(z(1), row, col, 1<<0, 0x1f); return;
735 case NW: case SW: case NE: case SE:
736 dev.mode4(z(1), row, col, 1<<1, 0x1f); return;
737 default: throw new Error();
743 public static void main(String[] s) throws Exception {
744 System.out.println(printLut(0x39, "se", "n", "L0"));
746 public static synchronized String printLut(int lut, String xn, String yn, String zn) {
748 File f = File.createTempFile("mvsis", ".mvs");
751 FileOutputStream fos = new FileOutputStream(f);
752 PrintWriter pw = new PrintWriter(new OutputStreamWriter(fos));
753 pw.println(".model clb");
754 pw.println(".inputs "+xn+" "+yn+" "+zn);
755 pw.println(".outputs O");
756 pw.println(".table "+xn+" "+yn+" "+zn+/*("X_xor_Y X_xor_Z Y_xor_Z")+*/ " -> O");
757 for(int i=8; i>=0; i--) {
758 int x = ((i & 0x01)!=0 ? 1 : 0);
759 int y = ((i & 0x02)!=0 ? 1 : 0);
760 int z = ((i & 0x04)!=0 ? 1 : 0);
764 //pw.print(" "+(x ^ y)+" ");
765 //pw.print(" "+(y ^ z)+" ");
766 //pw.print(" "+(z ^ y)+" ");
767 pw.print((lut & (1<<i))==0 ? 0 : 1);
773 Process p = Runtime.getRuntime().exec(new String[] { "mvsis", "-c", "simplify;print_factor", f.getAbsolutePath() });
774 new Gobble("mvsis: ", p.getErrorStream()).start();
775 //new Gobble("mvsis: ", p.getInputStream()).start();
776 BufferedReader br = new BufferedReader(new InputStreamReader(p.getInputStream()));
777 String ret = br.readLine();
780 } catch (Exception e) {
782 return "*mvsis_error*";
786 public static class Gobble extends Thread {
787 private final String header;
788 private final BufferedReader br;
789 public Gobble(String header, BufferedReader br) { this.br = br; this.header = header; }
790 public Gobble(String header, Reader r) { this(header, new BufferedReader(r)); }
791 public Gobble(String header, InputStream is) { this(header, new InputStreamReader(is)); }
794 for(String s = br.readLine(); s!=null; s=br.readLine())
795 System.err.println(header + s);
796 } catch (Exception e) {