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 SectorWire hwire(int plane) { return new SectorWire(true, plane, col, row); }
152 public SectorWire vwire(int plane) { return new SectorWire(false, plane, col, row); }
153 public Cell east() { return cell(col+1, row); }
154 public Cell west() { return cell(col-1, row); }
155 public Cell north() { return cell(col, row+1); }
156 public Cell south() { return cell(col, row-1); }
157 public Cell ne() { return cell(col+1, row+1); }
158 public Cell nw() { return cell(col-1, row+1); }
159 public Cell se() { return cell(col+1, row-1); }
160 public Cell sw() { return cell(col-1, row-1); }
162 public Sector sector() { return new Sector(this); }
163 public Cell(int col, int row) {
168 /* bit positions mean: [MSB] zxy z_y zx_ z__ _xy __y _x_ ___ [LSB] */
169 public void lut(int xlut, int ylut) { xlut(xlut); ylut(ylut); }
170 public void xlut(int table) { dev.mode4(7, row, col, (byte)(table & 0xff)); }
171 public byte xlut() { return (byte)(dev.mode4(7, row, col) & 0xff); }
172 public String printXLut() { return printLut(xlut(), "x", "y", "t"); }
173 public String printXLutX() { return printLut(xlut(), str(xi(), "x"), str(yi(), "y"), str(ti(), "t")); }
175 public String str(int x, String def) {
177 case NORTH: return "n";
178 case SOUTH: return "s";
179 case EAST: return "e";
180 case WEST: return "w";
181 case NW: return "nw";
182 case SE: return "se";
183 case NE: return "ne";
184 case SW: return "sw";
185 case FB: return "fb";
186 case L0: return (hx(0)&&vx(0))?"HV0":hx(0)?"H0":vx(0)?"V0":"L0";
187 case L1: return (hx(1)&&vx(1))?"HV1":hx(1)?"H1":vx(1)?"V1":"L1";
188 case L2: return (hx(2)&&vx(2))?"HV2":hx(2)?"H2":vx(2)?"V2":"L2";
189 case L3: return (hx(3)&&vx(3))?"HV3":hx(3)?"H3":vx(3)?"V3":"L3";
190 case L4: return (hx(4)&&vx(4))?"HV4":hx(4)?"H4":vx(4)?"V4":"L4";
195 /* bit positions mean: [MSB] zxy zx_ z_y z__ _xy _x_ __y ___ [LSB] */
196 public void ylut(int table) { dev.mode4(6, row, col, (byte)(table & 0xff)); }
197 public byte ylut() { return (byte)(dev.mode4(6, row, col) & 0xff); }
198 public String printYLut() { return printLut(ylut(), "y", "x", "t"); }
199 public String printYLutX() { return printLut(ylut(), str(yi(), "y"), str(xi(), "x"), str(ti(), "t")) + Integer.toString(ylut() & 0xff, 16); }
201 public void ff_reset_value(boolean value) {
202 //dev.mode4( /* FIXME WRONG!!! */, row, col, 3, !value); return;
205 public void out(int plane, boolean enable) {
207 case L0: dev.mode4(0x00, row, col, 2, enable); return;
208 case L1: dev.mode4(0x00, row, col, 3, enable); return;
209 case L2: dev.mode4(0x00, row, col, 5, enable); return;
210 case L3: dev.mode4(0x00, row, col, 4, enable); return;
211 case L4: dev.mode4(0x00, row, col, 1, enable); return;
212 default: throw new RuntimeException("invalid argument");
216 public boolean out(int plane) {
218 case L0: return (dev.mode4(0x00, row, col) & (1<<2)) != 0;
219 case L1: return (dev.mode4(0x00, row, col) & (1<<3)) != 0;
220 case L2: return (dev.mode4(0x00, row, col) & (1<<5)) != 0;
221 case L3: return (dev.mode4(0x00, row, col) & (1<<4)) != 0;
222 case L4: return (dev.mode4(0x00, row, col) & (1<<1)) != 0;
223 default: throw new RuntimeException("invalid argument");
227 public void h(int plane, boolean enable) {
229 case 0: dev.mode4(0x08, row, col, 2, enable); return;
230 case 1: dev.mode4(0x08, row, col, 0, enable); return;
231 case 2: dev.mode4(0x08, row, col, 5, enable); return;
232 case 3: dev.mode4(0x08, row, col, 6, enable); return;
233 case 4: dev.mode4(0x00, row, col, 6, enable); return;
234 default: throw new RuntimeException("invalid argument");
238 public boolean hx(int plane) {
240 case 0: return (dev.mode4(0x08, row, col) & (1<<2)) != 0;
241 case 1: return (dev.mode4(0x08, row, col) & (1<<0)) != 0;
242 case 2: return (dev.mode4(0x08, row, col) & (1<<5)) != 0;
243 case 3: return (dev.mode4(0x08, row, col) & (1<<6)) != 0;
244 case 4: return (dev.mode4(0x00, row, col) & (1<<6)) != 0;
245 default: throw new RuntimeException("invalid argument");
249 public void v(int plane, boolean enable) {
251 case 0: dev.mode4(0x08, row, col, 1, enable); return;
252 case 1: dev.mode4(0x08, row, col, 3, enable); return;
253 case 2: dev.mode4(0x08, row, col, 4, enable); return;
254 case 3: dev.mode4(0x08, row, col, 7, enable); return;
255 case 4: dev.mode4(0x00, row, col, 7, enable); return;
256 default: throw new RuntimeException("invalid argument");
260 public boolean vx(int plane) {
262 case 0: return (dev.mode4(0x08, row, col) & (1<<1)) != 0;
263 case 1: return (dev.mode4(0x08, row, col) & (1<<3)) != 0;
264 case 2: return (dev.mode4(0x08, row, col) & (1<<4)) != 0;
265 case 3: return (dev.mode4(0x08, row, col) & (1<<7)) != 0;
266 case 4: return (dev.mode4(0x00, row, col) & (1<<7)) != 0;
267 default: throw new RuntimeException("invalid argument");
272 switch(dev.mode4(1, row, col) & 0x30) {
273 case 0x20: return zi();
274 case 0x10: return FB;
275 case 0x00: return wi();
276 default: throw new Error("ack!");
279 public void t(int code) {
282 case TMUX_Z: throw new Error("not implemented, but should be possible");
283 case TMUX_W_AND_Z: result = 0x20; break;
285 case TMUX_FB: result = 0x04; break; /* I think this is actually W_AND_FB, sadly */
286 case TMUX_W_AND_FB: result = 0x14; break;
287 case TMUX_W: result = 0x00; break;
289 dev.mode4(1, row, col, result, 0x34);
291 public void t(boolean ignore_z_and_fb, boolean zm_drives_fb, boolean fb_drives_wm) {
292 // still not totally satisfied...
293 // how to we distinguish between z&w vs z or w&fb vs fb? ==> you can't! this is a false connection in my diagram
294 // what does it mean for both bits (0x30) to be set to 1?
295 //if (fb && z) throw new RuntimeException("invalid combination");
310 if (ignore_z_and_fb) result |= 0x20;
311 if (zm_drives_fb) result |= 0x04;
312 if (fb_drives_wm) result |= 0x10;
313 dev.mode4(1, row, col, result, 0x34);
316 public boolean xlut_relevant() {
317 if ((c()==XLUT || c()==ZMUX) && c_relevant()) return true;
318 if (xo()) return false;
319 if (nw() != null && nw().xi()==SE) return true;
320 if (ne() != null && ne().xi()==SW) return true;
321 if (sw() != null && sw().xi()==NE) return true;
322 if (se() != null && se().xi()==NW) return true;
325 public boolean ylut_relevant() {
326 if ((c()==YLUT || c()==ZMUX) && c_relevant()) return true;
327 if (yo()) return false;
328 if (north() != null && north().yi()==SOUTH) return true;
329 if (east() != null && east().yi()==WEST) return true;
330 if (south() != null && south().yi()==NORTH) return true;
331 if (west() != null && west().yi()==EAST) return true;
334 public boolean c_relevant() {
335 // FIXME: feedback line!
336 for(int i=0; i<5; i++)
337 if (out(i)) return true;
338 if (xo() || yo()) return true;
342 public void c(int source) {
344 case XLUT: dev.mode4(1, row, col, 0x00, 0xc0); break;
345 case YLUT: dev.mode4(1, row, col, 0x40, 0xc0); break;
346 case ZMUX: dev.mode4(1, row, col, 0x80, 0xc0); break;
347 default: throw new RuntimeException("Invalid Argument");
351 switch (dev.mode4(1, row, col) >> 6) {
352 case 0x00: return XLUT;
353 case 0x01: return YLUT;
354 case 0x02: return ZMUX;
358 public void b(boolean registered) { dev.mode4(1, row, col, 3, !registered); }
359 public void f(boolean registered) { dev.mode4(1, row, col, 2, !registered); }
360 public boolean xo() { return (dev.mode4(1, row, col) & 0x01) != 0; }
361 public boolean yo() { return (dev.mode4(1, row, col) & 0x02) != 0; }
362 public void xo(boolean center) { dev.mode4(1, row, col, 1, center); }
363 public void yo(boolean center) { dev.mode4(1, row, col, 0, center); }
364 public boolean b() { return (dev.mode4(1, row, col) >> 3)!=1; }
365 public boolean f() { return (dev.mode4(1, row, col) >> 2)!=1; }
366 public boolean x() { return (dev.mode4(1, row, col) >> 1)==1; }
367 public boolean y() { return (dev.mode4(1, row, col) >> 0)==1; }
370 switch (dev.mode4(0x02, row, col) & 0x3) {
374 default: throw new RuntimeException("invalid argument");
377 public void oe(int source) {
379 case NONE: dev.mode4(0x02, row, col, 0, 0x3); break;
380 case H4: dev.mode4(0x02, row, col, 1, 0x3); break;
381 case V4: dev.mode4(0x02, row, col, 2, 0x3); break;
382 default: throw new RuntimeException("invalid argument");
387 // FIXME: can be multiple
388 if ((dev.mode4(0x03, row, col) & (1<<4))!=0) return L3;
389 switch(dev.mode4(0x05, row, col) & 0xff) {
390 case 0x80: return SW;
391 case (1<<6): return NE;
392 case (1<<5): return SE;
393 case (1<<4): return NW;
394 case (1<<3): return L3;
395 case (1<<2): return L2;
396 case (1<<1): return L1;
397 case (1<<0): return L0;
399 default: throw new Error();
403 public void xi(int source) {
405 case SW: dev.mode4(0x03, row, col, 4, false); dev.mode4(0x05, row, col, 1<<7); break;
406 case NE: dev.mode4(0x03, row, col, 4, false); dev.mode4(0x05, row, col, 1<<6); break;
407 case SE: dev.mode4(0x03, row, col, 4, false); dev.mode4(0x05, row, col, 1<<5); break;
408 case NW: dev.mode4(0x03, row, col, 4, false); dev.mode4(0x05, row, col, 1<<4); break;
409 case L4: dev.mode4(0x03, row, col, 4, true); dev.mode4(0x05, row, col, 0); break;
410 case L3: dev.mode4(0x03, row, col, 4, false); dev.mode4(0x05, row, col, 1<<0); break;
411 case L2: dev.mode4(0x03, row, col, 4, false); dev.mode4(0x05, row, col, 1<<1); break;
412 case L1: dev.mode4(0x03, row, col, 4, false); dev.mode4(0x05, row, col, 1<<2); break;
413 case L0: dev.mode4(0x03, row, col, 4, false); dev.mode4(0x05, row, col, 1<<3); break;
414 default: throw new RuntimeException("invalid argument");
419 if ((dev.mode4(0x02, row, col) & (1<<6))!=0) return L4;
420 switch(dev.mode4(0x04, row, col) & 0xff) {
421 case 0x80: return NORTH;
422 case (1<<5): return SOUTH;
423 case (1<<6): return WEST;
424 case (1<<4): return EAST;
425 case (1<<3): return L3;
426 case (1<<2): return L2;
427 case (1<<1): return L1;
428 case (1<<0): return L0;
430 default: throw new Error();
434 public void yi(int source) {
436 case NORTH: dev.mode4(0x02, row, col, 6, false); dev.mode4(0x04, row, col, 1<<7); break;
437 case SOUTH: dev.mode4(0x02, row, col, 6, false); dev.mode4(0x04, row, col, 1<<5); break;
438 case WEST: dev.mode4(0x02, row, col, 6, false); dev.mode4(0x04, row, col, 1<<6); break;
439 case EAST: dev.mode4(0x02, row, col, 6, false); dev.mode4(0x04, row, col, 1<<4); break;
440 case L4: dev.mode4(0x02, row, col, 6, true); dev.mode4(0x04, row, col, 0); break;
441 case L3: dev.mode4(0x02, row, col, 6, false); dev.mode4(0x04, row, col, 1<<0); break;
442 case L2: dev.mode4(0x02, row, col, 6, false); dev.mode4(0x04, row, col, 1<<1); break;
443 case L1: dev.mode4(0x02, row, col, 6, false); dev.mode4(0x04, row, col, 1<<2); break;
444 case L0: dev.mode4(0x02, row, col, 6, false); dev.mode4(0x04, row, col, 1<<3); break;
445 default: throw new RuntimeException("invalid argument");
449 public void wi(int source) {
451 case L4: dev.mode4(0x03, row, col, 1<<5, 0xEC); break;
452 case L3: dev.mode4(0x03, row, col, 1<<6, 0xEC); break;
453 case L2: dev.mode4(0x03, row, col, 1<<7, 0xEC); break;
454 case L1: dev.mode4(0x03, row, col, 1<<3, 0xEC); break;
455 case L0: dev.mode4(0x03, row, col, 1<<2, 0xEC); break;
456 default: throw new RuntimeException("invalid argument");
461 int who = dev.mode4(0x03, row, col) & 0xff;
463 case (1<<5): return L4;
464 case (1<<6): return L3;
465 case (1<<7): return L2;
466 case (1<<3): return L1;
467 case (1<<2): return L0;
468 case (0): return NONE;
469 default: throw new RuntimeException("invalid argument: " + who);
473 public void zi(int source) {
475 case L4: dev.mode4(0x02, row, col, 1<<7, 0xDB); break;
476 case L3: dev.mode4(0x02, row, col, 1<<5, 0xDB); break;
477 case L2: dev.mode4(0x02, row, col, 1<<4, 0xDB); break;
478 case L1: dev.mode4(0x02, row, col, 1<<3, 0xDB); break;
479 case L0: dev.mode4(0x02, row, col, 1<<2, 0xDB); break;
480 default: throw new RuntimeException("invalid argument");
485 switch(dev.mode4(0x02, row, col) & 0xff) {
486 case (1<<7): return L4;
487 case (1<<5): return L3;
488 case (1<<4): return L2;
489 case (1<<3): return L1;
490 case (1<<2): return L0;
492 default: throw new RuntimeException("invalid argument");
498 public IOB iob_bot(int col, boolean primary) { return new IOB(col, 0, primary, true); }
499 public IOB iob_top(int col, boolean primary) { return new IOB(col, 1, primary, true); }
500 public IOB iob_left(int row, boolean primary) { return new IOB(0, row, primary, false); }
501 public IOB iob_right(int row, boolean primary) { return new IOB(1, row, primary, false); }
503 public IOB fromPin(int pin) {
504 if (pin >= 4 && pin <= 11) return io(pin-3);
505 if (pin >= 15 && pin <= 18) return io(pin-2);
506 if (pin >= 19 && pin <= 24) return io(pin);
507 if (pin >= 27 && pin <= 30) return io(pin-2);
508 if (pin >= 33 && pin <= 36) return io(pin);
509 if (pin >= 38 && pin <= 47) return io(pin+1);
512 if (pin >= 33 && pin <= 36) return io(pin+36);
513 if (pin >= 38 && pin <= 41) return io(pin+43);
514 if (pin >= 42 && pin <= 43) return io(pin+47);
515 if (pin >= 44 && pin <= 47) return io(pin+49);
516 if (pin >= 57 && pin <= 62) return io(pin+40);
517 if (pin >= 63 && pin <= 66) return io(pin+46);
518 if (pin >= 68 && pin <= 71) return io(pin+53);
519 if (pin >= 72 && pin <= 73) return io(pin+53);
520 if (pin >= 74 && pin <= 75) return io(pin+63);
521 if (pin >= 76 && pin <= 77) return io(143+(pin-76));
522 if (pin >= 80 && pin <= 81) return io(145+(pin-80));
523 if (pin >= 82 && pin <= 85) return io(151+(pin-82));
524 if (pin >= 86 && pin <= 89) return io(165+(pin-86));
525 if (pin >= 91 && pin <= 94) return io(177+(pin-91));
526 if (pin >= 95 && pin <= 96) return io(183+(pin-95));
527 if (pin >= 97 && pin <= 100) return io(189+(pin-97));
528 if (pin >= 161 && pin <= 164) return io(289+(pin-161));
529 if (pin >= 165 && pin <= 166) return io(297+(pin-165));
530 if (pin >= 167 && pin <= 168) return io(303+(pin-167));
531 if (pin >= 169 && pin <= 170) return io(309+(pin-169));
532 if (pin >= 172 && pin <= 173) return io(313+(pin-172));
533 if (pin >= 174 && pin <= 175) return io(325+(pin-174));
534 if (pin >= 176 && pin <= 179) return io(327+(pin-176));
535 if (pin >= 180 && pin <= 181) return io(335+(pin-180));
536 if (pin >= 184 && pin <= 185) return io(337+(pin-184));
537 if (pin >= 186 && pin <= 191) return io(343+(pin-186));
538 if (pin >= 192 && pin <= 193) return io(359+(pin-192));
539 if (pin >= 195 && pin <= 196) return io(363+(pin-195));
540 if (pin >= 197 && pin <= 200) return io(369+(pin-197));
541 if (pin >= 201 && pin <= 204) return io(381+(pin-201));
543 public io(int ionum) {
545 int cell = (94 - pin) / 2;
546 boolean primary = cell * 2 == (94-pin);
550 public final class IOB {
551 public final int col;
552 public final int row;
553 public final boolean primary;
554 public final boolean northsouth;
555 public IOB(int col, int row, boolean primary, boolean northsouth) {
558 this.northsouth = northsouth;
559 this.primary = primary;
562 public String dump() {
563 System.out.println("[ "+
564 (schmitt()?"schmitt ":"")+
565 (slew()==3?"fast ":slew()==2?"med ":slew()==1?"slow ":"slew-unknown ")+
571 public void enableOutput(int direction) {
578 // note: east-side IOBs should have slew=med, others slew=fast
579 slew((!northsouth && col==1) ? MEDIUM : FAST);
581 public void enableInput() {
586 public void useoem(boolean use) { dev.mode4(z(3), row, col, 6, use); }
587 public boolean useoem() { return (dev.mode4(z(3), row, col) & (1<<6))!=0; }
588 public void schmitt(boolean use) { dev.mode4(z(0), row, col, 7, use); }
589 public boolean schmitt() { return (dev.mode4(z(0), row, col) & (1<<7))!=0; }
591 public void slew(int slew) {
593 case FAST: dev.mode4(z(0), row, col, 3<<5, 0x60); return;
594 case MEDIUM: dev.mode4(z(0), row, col, 2<<5, 0x60); return;
595 case SLOW: dev.mode4(z(0), row, col, 1<<5, 0x60); return;
596 default: throw new Error();
600 public void oem(int source) {
602 case ALWAYS_ON: dev.mode4(z(3), row, col, 1<<5, 0x3f); return;
603 case ALWAYS_OFF: dev.mode4(z(3), row, col, 0, 0x3f); return;
604 default: throw new Error();
608 private int z(int code) { return (northsouth ? 0x70 : 0x60) | (primary ? 0x00 : 0x04) | (code & 0x7); }
609 public void pullup() { dev.mode4(z(0), row, col, 0x00<<1, 0x06); }
610 public void pulldown() { dev.mode4(z(0), row, col, 0x03<<1, 0x06); }
611 public void pullnone() { dev.mode4(z(0), row, col, 0x01<<1, 0x06); }
612 public void oe(boolean oe) {
613 int old = dev.mode4(z(1), row, col) & (~(1<<5));
614 old |= oe ? 0 : (1<<5);
615 dev.mode4(z(1), row, col, old & 0xff);
618 public void output(int which) {
621 dev.mode4(z(1), row, col, 0, 0x1f); return;
622 case WEST: case EAST: case NORTH: case SOUTH:
623 dev.mode4(z(1), row, col, 1<<0, 0x1f); return;
624 case NW: case SW: case NE: case SE:
625 dev.mode4(z(1), row, col, 1<<1, 0x1f); return;
626 default: throw new Error();
632 public static void main(String[] s) throws Exception {
633 System.out.println(printLut(0x39, "se", "n", "L0"));
635 public static synchronized String printLut(int lut, String xn, String yn, String zn) {
637 File f = File.createTempFile("mvsis", ".mvs");
640 FileOutputStream fos = new FileOutputStream(f);
641 PrintWriter pw = new PrintWriter(new OutputStreamWriter(fos));
642 pw.println(".model clb");
643 pw.println(".inputs "+xn+" "+yn+" "+zn);
644 pw.println(".outputs O");
645 pw.println(".table "+xn+" "+yn+" "+zn+/*("X_xor_Y X_xor_Z Y_xor_Z")+*/ " -> O");
646 for(int i=8; i>=0; i--) {
647 int x = ((i & 0x01)!=0 ? 1 : 0);
648 int y = ((i & 0x02)!=0 ? 1 : 0);
649 int z = ((i & 0x04)!=0 ? 1 : 0);
653 //pw.print(" "+(x ^ y)+" ");
654 //pw.print(" "+(y ^ z)+" ");
655 //pw.print(" "+(z ^ y)+" ");
656 pw.print((lut & (1<<i))==0 ? 0 : 1);
662 Process p = Runtime.getRuntime().exec(new String[] { "mvsis", "-c", "simplify;print_factor", f.getAbsolutePath() });
663 new Gobble("mvsis: ", p.getErrorStream()).start();
664 //new Gobble("mvsis: ", p.getInputStream()).start();
665 BufferedReader br = new BufferedReader(new InputStreamReader(p.getInputStream()));
666 String ret = br.readLine();
669 } catch (Exception e) {
671 return "*mvsis_error*";
675 public static class Gobble extends Thread {
676 private final String header;
677 private final BufferedReader br;
678 public Gobble(String header, BufferedReader br) { this.br = br; this.header = header; }
679 public Gobble(String header, Reader r) { this(header, new BufferedReader(r)); }
680 public Gobble(String header, InputStream is) { this(header, new InputStreamReader(is)); }
683 for(String s = br.readLine(); s!=null; s=br.readLine())
684 System.err.println(header + s);
685 } catch (Exception e) {