package edu.berkeley.obits.device.atmel;
-import static edu.berkeley.obits.device.atmel.AtmelDevice.Constants.*;
+
+import com.atmel.fpslic.*;
+import static com.atmel.fpslic.Fpslic.Constants.*;
+import static com.atmel.fpslic.Fpslic.Util.*;
import edu.berkeley.obits.*;
import org.ibex.util.*;
import java.util.*;
public class At40k {
- /*private*/public final AtmelDevice dev;
+ /*private*/public final Fpslic dev;
private final int width;
private final int height;
- public At40k(AtmelDevice dev, int width, int height) {
+ public At40k(Fpslic dev, int width, int height) {
this.width = width;
this.height = height;
this.dev = dev;
}
public static class At40k10 extends At40k {
- public At40k10(AtmelDevice dev) { super(dev, 24, 24); }
+ public At40k10(Fpslic dev) { super(dev, 24, 24); }
}
public final class Sector {
this.col= horizontal ? (col & ~0x3) : col;
this.row=!horizontal ? (row & ~0x3) : row;
}
+ public boolean isDriven() {
+ // FIXME: bridging connections (horiz-to-vert)
+ for(int i=0; i<4; i++)
+ if (cell(horizontal ? col+i : col,
+ horizontal ? row : row+i).out(plane)) return true;
+ // FIXME: sector switchbox drivers
+ return false;
+ }
private int z(int z) { return (horizontal ? 0x30 : 0x20) | z; }
- public int code(boolean left) {
+ public int code(boolean topleft) {
switch(plane) {
- case 0: return z(6)+(left?0:1);
- case 1: return z(8)+(left?0:1);
- case 2: return z(2*(4-plane))+(left?0:1);
- case 3: return z(2*(4-plane))+(left?0:1);
- case 4: return z(2*(4-plane))+(left?0:1);
+ case 0: return z(6)+(topleft?0:1);
+ case 1: return z(8)+(topleft?0:1);
+ case 2: return z(2*(4-plane))+(topleft?0:1);
+ case 3: return z(2*(4-plane))+(topleft?0:1);
+ case 4: return z(2*(4-plane))+(topleft?0:1);
}
throw new Error();
}
"x"+plane;
}
- /** returns the ZYX0 coordinate of the byte controlling the switchbox that bridges this wire to <tt>w</tt> */
+ /** returns the ZYX0 coordinate of the byte controlling the switchbox that allows <tt>w</tt> to drive this wire */
public int switchbox(SectorWire w) {
if (w.horizontal==horizontal) {
if (w.plane!=plane) throw new Error();
if (Math.abs(w.coarse()-coarse())!=4) throw new Error(w.coarse() + " -- " + coarse());
- if (w.coarse() < coarse()) return w.switchbox(this);
- boolean topleft = w.coarse() < coarse();
+ boolean topleft = horizontal ? (w.coarse() < coarse()) : (w.coarse() > coarse());
int col = _col() + (( horizontal && !topleft) ? 1 : 0);
- int row = _row() + ((!horizontal && !topleft) ? 1 : 0);
+ int row = _row() + ((!horizontal && topleft) ? 1 : 0);
return (code(topleft) << 24) | (row<<16) | (col<<8);
}
throw new Error("not implemented");
public final int col;
public final int row;
- public SectorWire hwire(int plane) { return new SectorWire(true, plane, col, row); }
- public SectorWire vwire(int plane) { return new SectorWire(false, plane, col, row); }
-
- public Sector sector() { return new Sector(this); }
public Cell(int col, int row) {
this.row = row;
this.col = col;
}
+
+ // Accessors for Neighbors //////////////////////////////////////////////////////////////////////////////
+
+ public SectorWire hwire(int plane) { return new SectorWire(true, plane, col, row); }
+ public SectorWire vwire(int plane) { return new SectorWire(false, plane, col, row); }
+ public Cell east() { return cell(col+1, row); }
+ public Cell west() { return cell(col-1, row); }
+ public Cell north() { return cell(col, row+1); }
+ public Cell south() { return cell(col, row-1); }
+ public Cell ne() { return cell(col+1, row+1); }
+ public Cell nw() { return cell(col-1, row+1); }
+ public Cell se() { return cell(col+1, row-1); }
+ public Cell sw() { return cell(col-1, row-1); }
+ public Sector sector() { return new Sector(this); }
/* bit positions mean: [MSB] zxy z_y zx_ z__ _xy __y _x_ ___ [LSB] */
+ public void lut(int xlut, int ylut) { xlut(xlut); ylut(ylut); }
public void xlut(int table) { dev.mode4(7, row, col, (byte)(table & 0xff)); }
public byte xlut() { return (byte)(dev.mode4(7, row, col) & 0xff); }
- public String printXLut() { return printLut(xlut(), "y", "x", "t"); }
- public String printXLutX() { return printLut(xlut(), str(yi(), "y"), str(xi(), "x"), str(ti(), "t")); }
+ public String printXLut() { return printLut(xlut(), "x", "y", "t"); }
+ public String printXLutX() { return printLut(xlut(), str(xi(), "x"), str(yi(), "y"), str(ti_source(), "t")); }
public String str(int x, String def) {
switch(x) {
public void ylut(int table) { dev.mode4(6, row, col, (byte)(table & 0xff)); }
public byte ylut() { return (byte)(dev.mode4(6, row, col) & 0xff); }
public String printYLut() { return printLut(ylut(), "y", "x", "t"); }
- public String printYLutX() { return printLut(ylut(), str(yi(), "y"), str(xi(), "x"), str(ti(), "t")); }
+ public String printYLutX() { return printLut(ylut(), str(yi(), "y"), str(xi(), "x"), str(ti_source(), "t")) + Integer.toString(ylut() & 0xff, 16); }
public void ff_reset_value(boolean value) {
//dev.mode4( /* FIXME WRONG!!! */, row, col, 3, !value); return;
}
+ /** FIXME!!! */
+ public boolean ff_reset_value() { return false; }
+ public boolean columnClocked() {
+ return false;
+ }
public void out(int plane, boolean enable) {
switch(plane) {
- case L0: dev.mode4(0x00, row, col, 3, enable); return;
- case L1: dev.mode4(0x00, row, col, 2, enable); return;
+ case L0: dev.mode4(0x00, row, col, 2, enable); return;
+ case L1: dev.mode4(0x00, row, col, 3, enable); return;
case L2: dev.mode4(0x00, row, col, 5, enable); return;
case L3: dev.mode4(0x00, row, col, 4, enable); return;
case L4: dev.mode4(0x00, row, col, 1, enable); return;
public boolean out(int plane) {
switch(plane) {
- case L0: return (dev.mode4(0x00, row, col) & (1<<3)) != 0;
- case L1: return (dev.mode4(0x00, row, col) & (1<<2)) != 0;
+ case L0: return (dev.mode4(0x00, row, col) & (1<<2)) != 0;
+ case L1: return (dev.mode4(0x00, row, col) & (1<<3)) != 0;
case L2: return (dev.mode4(0x00, row, col) & (1<<5)) != 0;
case L3: return (dev.mode4(0x00, row, col) & (1<<4)) != 0;
case L4: return (dev.mode4(0x00, row, col) & (1<<1)) != 0;
}
}
- public int ti() {
+
+ public int ti_source() {
switch(dev.mode4(1, row, col) & 0x30) {
case 0x20: return zi();
case 0x10: return FB;
default: throw new Error("ack!");
}
}
- public void t(boolean z, boolean w, boolean fb) {
+
+ public int t() {
+ System.err.println("found " + (dev.mode4(1, row, col) & 0x34));
+ switch(dev.mode4(1, row, col) & 0x34) {
+ case 0x20: return TMUX_Z;
+ case 0x24: return TMUX_W_AND_Z;
+ case 0x34: return TMUX_FB;
+ case 0x14: return TMUX_W_AND_FB;
+ case 0x00: return TMUX_W;
+ //default: throw new RuntimeException("unknown!");
+ default: return TMUX_W;
+ }
+ }
+
+ public void t(int code) {
+ int result = 0;
+ switch(code) {
+ case TMUX_Z: result = 0x20; break; // TOTALLYBOGUS throw new Error("not implemented, but should be possible");
+ case TMUX_W_AND_Z: result = 0x24; break;
+ case TMUX_FB: result = 0x34; break; /* I think this is actually W_AND_FB, sadly */
+ case TMUX_W_AND_FB: result = 0x14; break;
+ case TMUX_W: result = 0x00; break;
+ //default: throw new RuntimeException("unknown code! " + code);
+ default: result = 0x00; break;
+ }
+ dev.mode4(1, row, col, result, 0x34);
+ }
+ /*
+ private void fmux(int source) {
+ switch(source) {
+ case ZMUX:
+ case FB:
+ case ALWAYS_ON:
+ default: throw new Error("unknown argument to fmux()");
+ }
+ }
+
+ public boolean win_easable() {
+ }
+ */
+
+ public int ti() {
+ return dev.mode4(1, row, col) & 0x34;
+ }
+
+ public void t(boolean ignore_z_and_fb, boolean zm_drives_fb, boolean fb_drives_wm) {
// still not totally satisfied...
- // 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
+ // need to find the bit that sets the w-mux off
// what does it mean for both bits (0x30) to be set to 1?
- if (fb && z) throw new RuntimeException("invalid combination");
+ //if (fb && z) throw new RuntimeException("invalid combination");
int result = 0;
- if (z) result |= 0x20;
- if (fb) result |= 0x10;
- dev.mode4(1, row, col, result, 0x30);
+ // ZM->FB = 0x04
+ // FB->WM = 0x10
+ // WZ->WM = 0x20
+
+ // tff => w&z [0x20]
+ // fff => w [0x00]
+ // ttt => fb&w [0x34]
+ // ftt => fb&w [0x14]
+ // fft => fb&w [0x10]
+
+ // ttf => w&z [0x24]
+ // ftf => w [0x04]
+ // tft => fb&w [0x30]
+ if (ignore_z_and_fb) result |= 0x20;
+ if (zm_drives_fb) result |= 0x04;
+ if (fb_drives_wm) result |= 0x10;
+ dev.mode4(1, row, col, result, 0x34);
}
+
public void c(int source) {
switch(source) {
case XLUT: dev.mode4(1, row, col, 0x00, 0xc0); break;
}
}
public int c() {
- switch (dev.mode4(1, row, col) >> 6) {
+ int cval = dev.mode4(1, row, col) & 0xc0;
+ switch (cval) {
case 0x00: return XLUT;
- case 0x01: return YLUT;
- case 0x02: return ZMUX;
+ case 0x40: return YLUT;
+ case 0x80: return ZMUX;
}
- throw new Error();
+ throw new Error("c() => " + cval);
}
public void b(boolean registered) { dev.mode4(1, row, col, 3, !registered); }
public void f(boolean registered) { dev.mode4(1, row, col, 2, !registered); }
- public void xo(boolean center) { dev.mode4(1, row, col, 1, center); }
- public void yo(boolean center) { dev.mode4(1, row, col, 0, center); }
- public boolean b() { return (dev.mode4(1, row, col) >> 3)!=1; }
- public boolean f() { return (dev.mode4(1, row, col) >> 2)!=1; }
- public boolean x() { return (dev.mode4(1, row, col) >> 1)==1; }
- public boolean y() { return (dev.mode4(1, row, col) >> 0)==1; }
-
+ public boolean xo() { return (dev.mode4(1, row, col) & 0x01) != 0; }
+ public boolean yo() { return (dev.mode4(1, row, col) & 0x02) != 0; }
+ public void xo(boolean center) { dev.mode4(1, row, col, 0, center); }
+ public void yo(boolean center) { dev.mode4(1, row, col, 1, center); }
+ public boolean b() { return (dev.mode4(1, row, col) & (1 << 3)) == 0; }
+ public boolean f() { return (dev.mode4(1, row, col) & (1 << 2)) == 0; }
+ public boolean x() { return (dev.mode4(1, row, col) & (1 << 1)) != 0; }
+ public boolean y() { return (dev.mode4(1, row, col) & (1 << 0)) != 0; }
+
+ public int oe() {
+ switch (dev.mode4(0x02, row, col) & 0x3) {
+ case 0: return NONE;
+ case 1: return H4;
+ case 2: return V4;
+ default: throw new RuntimeException("invalid argument");
+ }
+ }
public void oe(int source) {
switch(source) {
case NONE: dev.mode4(0x02, row, col, 0, 0x3); break;
public int xi() {
// FIXME: can be multiple
- if ((dev.mode4(0x03, row, col) & (1<<4))!=0) return L3;
+ if ((dev.mode4(0x03, row, col) & (1<<4))!=0) return L4;
switch(dev.mode4(0x05, row, col) & 0xff) {
case 0x80: return SW;
case (1<<6): return NE;
case (1<<5): return SE;
case (1<<4): return NW;
- case (1<<3): return L3;
- case (1<<2): return L2;
- case (1<<1): return L1;
- case (1<<0): return L0;
+ case (1<<3): return L0;
+ case (1<<2): return L1;
+ case (1<<1): return L2;
+ case (1<<0): return L3;
case 0: return NONE;
default: throw new Error();
}
case L2: dev.mode4(0x03, row, col, 4, false); dev.mode4(0x05, row, col, 1<<1); break;
case L1: dev.mode4(0x03, row, col, 4, false); dev.mode4(0x05, row, col, 1<<2); break;
case L0: dev.mode4(0x03, row, col, 4, false); dev.mode4(0x05, row, col, 1<<3); break;
+ case NONE: dev.mode4(0x03, row, col, 4, false); dev.mode4(0x05, row, col, 0); break;
default: throw new RuntimeException("invalid argument");
}
}
case (1<<5): return SOUTH;
case (1<<6): return WEST;
case (1<<4): return EAST;
- case (1<<3): return L3;
- case (1<<2): return L2;
- case (1<<1): return L1;
- case (1<<0): return L0;
+ case (1<<3): return L0;
+ case (1<<2): return L1;
+ case (1<<1): return L2;
+ case (1<<0): return L3;
case 0: return NONE;
default: throw new Error();
}
case L2: dev.mode4(0x02, row, col, 6, false); dev.mode4(0x04, row, col, 1<<1); break;
case L1: dev.mode4(0x02, row, col, 6, false); dev.mode4(0x04, row, col, 1<<2); break;
case L0: dev.mode4(0x02, row, col, 6, false); dev.mode4(0x04, row, col, 1<<3); break;
+ case NONE: dev.mode4(0x02, row, col, 6, false); dev.mode4(0x04, row, col, 0); break;
default: throw new RuntimeException("invalid argument");
}
}
case L2: dev.mode4(0x03, row, col, 1<<7, 0xEC); break;
case L1: dev.mode4(0x03, row, col, 1<<3, 0xEC); break;
case L0: dev.mode4(0x03, row, col, 1<<2, 0xEC); break;
+ case NONE: dev.mode4(0x03, row, col, 0, 0xEC); break;
default: throw new RuntimeException("invalid argument");
}
}
public int wi() {
- switch(dev.mode4(0x03, row, col) & 0xff) {
+ int who = dev.mode4(0x03, row, col) & 0xEC;
+ switch(who) {
case (1<<5): return L4;
case (1<<6): return L3;
case (1<<7): return L2;
case (1<<3): return L1;
case (1<<2): return L0;
+ case (1<<0): return NONE; /* huh? */
case (0): return NONE;
- default: throw new RuntimeException("invalid argument");
+ default: throw new RuntimeException("invalid argument: " + who);
}
}
+
public void zi(int source) {
switch(source) {
case L4: dev.mode4(0x02, row, col, 1<<7, 0xDB); break;
case L2: dev.mode4(0x02, row, col, 1<<4, 0xDB); break;
case L1: dev.mode4(0x02, row, col, 1<<3, 0xDB); break;
case L0: dev.mode4(0x02, row, col, 1<<2, 0xDB); break;
+ case NONE: dev.mode4(0x02, row, col, 0, 0xDB); break;
default: throw new RuntimeException("invalid argument");
}
}
public int zi() {
- switch(dev.mode4(0x02, row, col) & 0xff) {
+ switch(dev.mode4(0x02, row, col) & 0xDB) {
case (1<<7): return L4;
case (1<<5): return L3;
case (1<<4): return L2;
case (1<<3): return L1;
case (1<<2): return L0;
+ case (1<<1): return NONE; /* huh? */
+ case (1<<0): return NONE; /* huh? */
case 0: return NONE;
- default: throw new RuntimeException("invalid argument");
+ default: throw new RuntimeException("invalid argument: zi=="+(dev.mode4(0x02, row, col) & 0xDB));
}
}
+
+ // Relevance //////////////////////////////////////////////////////////////////////////////
+
+ public boolean xo_relevant() { return xo_relevant(NE) || xo_relevant(SE) || xo_relevant(NW) || xo_relevant(SW); }
+ public boolean xo_relevant(int direction) {
+ switch(direction) {
+ case NE: return ne() != null && ne().xi()==SW /*&& ne().xi_relevant()*/;
+ case NW: return nw() != null && nw().xi()==SE /*&& nw().xi_relevant()*/;
+ case SE: return se() != null && se().xi()==NW /*&& se().xi_relevant()*/;
+ case SW: return sw() != null && sw().xi()==NE /*&& sw().xi_relevant()*/;
+ default: return false;
+ }
+ }
+ public boolean yo_relevant() { return yo_relevant(NORTH) || yo_relevant(SOUTH) || yo_relevant(EAST) || yo_relevant(WEST); }
+ public boolean yo_relevant(int direction) {
+ switch(direction) {
+ case NORTH: return north() != null && north().yi()==SOUTH /*&& north().yi_relevant()*/;
+ case EAST: return east() != null && east().yi()==WEST /*&& east().yi_relevant()*/;
+ case SOUTH: return south() != null && south().yi()==NORTH /*&& south().yi_relevant()*/;
+ case WEST: return west() != null && west().yi()==EAST /*&& west().yi_relevant()*/;
+ default: return false;
+ }
+ }
+ public boolean xi_relevant() { return xi_to_xlut_relevant() || xi_to_ylut_relevant(); }
+ public boolean yi_relevant() { return yi_to_xlut_relevant() || yi_to_ylut_relevant(); }
+ public boolean xi_to_ylut_relevant() { return (((ylut() & 0xcc) >> 2) != (ylut() & 0x33)); }
+ public boolean yi_to_xlut_relevant() { return (((xlut() & 0xcc) >> 2) != (xlut() & 0x33)); }
+ public boolean zi_to_xlut_relevant() { return (((xlut() & LUT_Z) >> 4) != (xlut() & LUT_Z)); }
+ public boolean zi_to_ylut_relevant() { return (((ylut() & LUT_Z) >> 4) != (ylut() & LUT_Z)); }
+ public boolean xi_to_xlut_relevant() { return (((xlut() & LUT_SELF) >> 1) != (xlut() & (LUT_SELF >> 1))); }
+ public boolean yi_to_ylut_relevant() { return (((ylut() & LUT_SELF) >> 1) != (ylut() & (LUT_SELF >> 1))); }
+ public boolean xlut_relevant() {
+ if ((c()==XLUT || c()==ZMUX) && c_relevant()) return true;
+ if (xo()) return false;
+ return xo_relevant();
+ }
+ public boolean ylut_relevant() {
+ if ((c()==YLUT || c()==ZMUX) && c_relevant()) return true;
+ if (yo()) return false;
+ return yo_relevant();
+ }
+ public boolean c_relevant() {
+ switch(ti()) {
+ case 0x34: return true;
+ case 0x14: return true;
+ case 0x10: return true;
+ case 0x30: return true;
+ }
+ for(int i=0; i<5; i++)
+ if (out(i))
+ return true;
+ if (xo() || yo()) return true;
+ return false;
+ }
+
+ public boolean register_relevant() {
+ if (!c_relevant()) return false;
+ if (f() && out_relevant()) return true;
+ if (f() && fb_relevant()) return true;
+ if (b() && xo()) return true;
+ if (b() && yo()) return true;
+ return false;
+ }
+ public boolean out_relevant() {
+ boolean out = false;
+ boolean connect = false;
+ for(int i=0; i<4; i++) {
+ if (out(L0+i)) out = true;
+ if (hx(L0+i)) connect = true;
+ if (vx(L0+i)) connect = true;
+ }
+ return out && connect;
+ }
+ public boolean fb_relevant() {
+ if (!(zi_to_xlut_relevant()) ||
+ !(zi_to_ylut_relevant())) return false;
+ switch(ti()) {
+ case 0x34: return true;
+ case 0x14: return true;
+ case 0x10: return true;
+ case 0x30: return true;
+ }
+ return false;
+ }
+
+
}
- public IOB iob_top(int col, boolean primary) { return new IOB(col, 0, primary, true); }
- public IOB iob_bot(int col, boolean primary) { return new IOB(col, 1, primary, true); }
+ public IOB iob_bot(int col, boolean primary) { return new IOB(col, 0, primary, true); }
+ public IOB iob_top(int col, boolean primary) { return new IOB(col, 1, primary, true); }
public IOB iob_left(int row, boolean primary) { return new IOB(0, row, primary, false); }
public IOB iob_right(int row, boolean primary) { return new IOB(1, row, primary, false); }
/*
projects / slipway.git / blobdiff