X-Git-Url: http://git.megacz.com/?a=blobdiff_plain;f=src%2Fcom%2Fatmel%2Ffpslic%2FFpslic.java;h=9cf1ff60a00ac2b8cbe0b3b2b40393dbfcab916e;hb=dfa9f65eb0614beb6fe0d7e7660a300087fc656d;hp=f0668586b6a92d3b4347d85d10c347925eb4a42c;hpb=e9724a11d269da6da7763cfe558691791809aa9b;p=slipway.git diff --git a/src/com/atmel/fpslic/Fpslic.java b/src/com/atmel/fpslic/Fpslic.java index f066858..9cf1ff6 100644 --- a/src/com/atmel/fpslic/Fpslic.java +++ b/src/com/atmel/fpslic/Fpslic.java @@ -3,72 +3,21 @@ package com.atmel.fpslic; import java.util.*; import java.io.*; import org.ibex.util.Log; +import static com.atmel.fpslic.FpslicConstants.*; public abstract class Fpslic { - public static class Util { - public static int lutSwap(int x) { - return - (x & 0x80) | - ((x & 0x20) << 1) | - ((x & 0x40) >> 1) | - (x & 0x10) | - (x & 0x08) | - ((x & 0x02) << 1) | - ((x & 0x04) >> 1) | - (x & 0x01); - } - } - - /** issue a command to the device in Mode4 format; see Gosset's documentation for further details */ - public int getWidth() { return 24; } - public int getHeight() { return 24; } - - private static String hex2(int i) { - String ret = Integer.toString(i, 16); - while(ret.length() < 2) ret = "0"+ret; - return ret.toUpperCase(); - } + public Fpslic(int width, int height) { this.width = width; this.height = height; } - public void readMode4(InputStream in) throws IOException { - int count = 0; - BufferedReader br = new BufferedReader(new InputStreamReader(in)); - for(String str = br.readLine(); str != null; str = br.readLine()) { - long foo = Long.parseLong(str, 16); - mode4((int)(foo >> 24), (int)(foo >> 16), (int)(foo >> 8), (int)(foo >> 0)); - count++; - } - flush(); - in.close(); - } + private int width; + private int height; + public int getWidth() { return width; } + public int getHeight() { return height; } public abstract void flush(); - - public void writeMode4(Writer w) throws IOException { - for(int x=0; x 0x09 && z < 0x10) || - (z > 0x11 && z < 0x20) || - (z > 0x29 && z < 0x30) || - (z > 0x39 && z < 0x40) || - (z > 0x41 && z < 0x60) || - (z > 0x67 && z < 0x70) || - (z > 0x77 && z < 0xD0) || - (z > 0xD3)) - continue; - w.write(hex2(z)); - w.write(hex2(y)); - w.write(hex2(x)); - w.write(hex2(mode4(z, y, x) & 0xff)); - w.write('\n'); - } - w.flush(); - } - - public abstract void mode4(int z, int y, int x, int d); public abstract byte mode4(int z, int y, int x); + public byte mode4zyx(int zyx) { return mode4(zyx>>24, (zyx>>16)&0xff, (zyx>>8)&0xff); } public void mode4zyx(int zyx, int d, int invmask) { mode4(zyx>>24, (zyx>>16)&0xff, (zyx>>8)&0xff, d, invmask); } public void mode4(int z, int y, int x, int d, int invmask) { @@ -84,4 +33,828 @@ public abstract class Fpslic { old |= set ? (1 << bit) : 0; mode4(z, y, x, old); } + + // Inner Classes /////////////////////////////////////////////////////////////////////////////// + + public final class Sector { + public final int col; + public final int row; + public Sector(Cell c) { this((c.col/4)*4, (c.row/4)*4); } + private Sector(int col, int row) { + if (row % 4 != 0) throw new Error("Sector must be created with a multiple-of-4 row"); + if (col % 4 != 0) throw new Error("Sector must be created with a multiple-of-4 col"); + this.row = row; + this.col = col; + } + public Sector north() { return row+4>=getHeight() ? null : new Sector(col, row+4); } + public Sector south() { return row==0 ? null : new Sector(col, row-4); } + public Sector east() { return col+4>=getWidth() ? null : new Sector(col+4, row); } + public Sector west() { return col==0 ? null : new Sector(col-4, row); } + public Cell cell() { return Fpslic.this.cell(col, row); } + } + + public final class SectorWire { + public final boolean global; + public final boolean horizontal; + public final int plane; + public final int row; + public final int col; + public SectorWire(boolean horizontal, int plane, int col, int row) { + this.horizontal=horizontal; + this.global = false; + this.plane=plane; + 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 topleft) { + switch(plane) { + 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(); + } + + private final int fine() { return horizontal ? row : col; } + public final int coarse() { return horizontal ? col : row; } + private int _row() { return horizontal ? row : ((row)>>2); } + private int _col() { return horizontal ? ((col)>>2) : col; } + + public SectorWire west() { return !horizontal ? null : col-4<0 ? null : new SectorWire(horizontal, plane, col-4, row); } + public SectorWire east() { return !horizontal ? null : col+4>=getWidth() ? null : new SectorWire(horizontal, plane, col+4, row); } + public SectorWire north() { return horizontal ? null : row+4>=getHeight() ? null : new SectorWire(horizontal, plane, col, row+4); } + public SectorWire south() { return horizontal ? null : row-4<0 ? null : new SectorWire(horizontal, plane, col, row-4); } + + public String toString() { + return + (horizontal?(col+":"+(col+3)):(""+col))+","+ + (horizontal?(row+"") :(row+":"+(row+3)))+ + "x"+plane; + } + + /** returns the ZYX0 coordinate of the byte controlling the switchbox that allows w 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()); + boolean topleft = horizontal ? (w.coarse() < coarse()) : (w.coarse() > coarse()); + int col = _col() + (( 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 void drives(SectorWire w, boolean enable) { + mode4zyx(switchbox(w), enable?0x02:0x00, 0x07); + } + + public boolean drives(SectorWire w) { + int connect = (mode4zyx(switchbox(w)) >> (global?3:0)) & 0x7; + return (connect & 0x2)!=0; + } + public SectorWire driverRight() { + //System.out.println("checking " + Integer.toString(code(true), 16) + " " + + //Integer.toString(_row(), 16) + " " + Integer.toString(_col(), 16)); + int ret = mode4(z(code(true)), _row(), _col()); + ret = (ret >> (global?3:0)) & 0x7; + switch(ret) { + case 0: return null; + case 1: return null; /* global wire on same side */ + case 2: return new SectorWire(horizontal, plane, horizontal?(col+4):col, horizontal?row:(row+4)); + case 4: return null; /* global wire on other side */ + default: throw new Error("multiple drivers on " + this + "!"); + } + } + + public boolean touches(Cell c) { + return + horizontal + ? (c.row==_row() && (_col()/4 == c.col/4)) + : (c.col==_col() && (_row()/4 == c.row/4)); + } + } + /* + public final class SwitchBox { + public final boolean h; + public final int col; + public final int row; + public final int plane; + public SwitchBox(boolean h, int col, int row, int plane) { this.h = h; this.col = col; this.row = row; this.plane = plane; } + public SectorWire west(boolean global) { return !h ? null : global ? null : new SectorWire(h, col-4, row, plane); } + public SectorWire east(boolean global) { return !h ? null : global ? null : new SectorWire(h, col+4, row, plane); } + public SectorWire north(boolean global) { return !h ? null : global ? null : new SectorWire(h, col, row-4, plane); } + public SectorWire south(boolean global) { return !h ? null : global ? null : new SectorWire(h, col, row+4, plane); } + } + */ + + public Cell cell(int col, int row) { + if (col<0) return null; + if (row<0) return null; + if (col>=getWidth()) return null; + if (row>=getHeight()) return null; + return new Cell(col, row); + } + + public final class Cell { + public final int col; + public final int row; + + 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) { mode4(7, row, col, (byte)(table & 0xff)); } + public byte xlut() { return (byte)(mode4(7, row, col) & 0xff); } + public String printXLut() { return FpslicUtil.printLut(xlut(), "x", "y", "t"); } + public String printXLutX() { return FpslicUtil.printLut(xlut(), str(xi(), "x"), str(yi(), "y"), str(ti_source(), "t")); } + + public String str(int x, String def) { + switch(x) { + case NORTH: return "n"; + case SOUTH: return "s"; + case EAST: return "e"; + case WEST: return "w"; + case NW: return "nw"; + case SE: return "se"; + case NE: return "ne"; + case SW: return "sw"; + case FB: return "fb"; + case L0: return (hx(0)&&vx(0))?"HV0":hx(0)?"H0":vx(0)?"V0":"L0"; + case L1: return (hx(1)&&vx(1))?"HV1":hx(1)?"H1":vx(1)?"V1":"L1"; + case L2: return (hx(2)&&vx(2))?"HV2":hx(2)?"H2":vx(2)?"V2":"L2"; + case L3: return (hx(3)&&vx(3))?"HV3":hx(3)?"H3":vx(3)?"V3":"L3"; + case L4: return (hx(4)&&vx(4))?"HV4":hx(4)?"H4":vx(4)?"V4":"L4"; + default: return def; + } + } + + /* bit positions mean: [MSB] zxy zx_ z_y z__ _xy _x_ __y ___ [LSB] */ + public void ylut(int table) { mode4(6, row, col, (byte)(table & 0xff)); } + public byte ylut() { return (byte)(mode4(6, row, col) & 0xff); } + public String printYLut() { return FpslicUtil.printLut(ylut(), "y", "x", "t"); } + public String printYLutX() { return FpslicUtil.printLut(ylut(), str(yi(), "y"), str(xi(), "x"), str(ti_source(), "t")) + Integer.toString(ylut() & 0xff, 16); } + + public void ff_reset_value(boolean value) { + //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: mode4(0x00, row, col, 2, enable); return; + case L1: mode4(0x00, row, col, 3, enable); return; + case L2: mode4(0x00, row, col, 5, enable); return; + case L3: mode4(0x00, row, col, 4, enable); return; + case L4: mode4(0x00, row, col, 1, enable); return; + default: throw new RuntimeException("invalid argument"); + } + } + + public boolean out(int plane) { + switch(plane) { + case L0: return (mode4(0x00, row, col) & (1<<2)) != 0; + case L1: return (mode4(0x00, row, col) & (1<<3)) != 0; + case L2: return (mode4(0x00, row, col) & (1<<5)) != 0; + case L3: return (mode4(0x00, row, col) & (1<<4)) != 0; + case L4: return (mode4(0x00, row, col) & (1<<1)) != 0; + default: throw new RuntimeException("invalid argument"); + } + } + + public void h(int plane, boolean enable) { + switch(plane) { + case 0: mode4(0x08, row, col, 0, enable); return; + case 1: mode4(0x08, row, col, 2, enable); return; + case 2: mode4(0x08, row, col, 5, enable); return; + case 3: mode4(0x08, row, col, 6, enable); return; + case 4: mode4(0x00, row, col, 6, enable); return; + default: throw new RuntimeException("invalid argument"); + } + } + + public boolean hx(int plane) { + switch(plane) { + case 0: return (mode4(0x08, row, col) & (1<<0)) != 0; + case 1: return (mode4(0x08, row, col) & (1<<2)) != 0; + case 2: return (mode4(0x08, row, col) & (1<<5)) != 0; + case 3: return (mode4(0x08, row, col) & (1<<6)) != 0; + case 4: return (mode4(0x00, row, col) & (1<<6)) != 0; + default: throw new RuntimeException("invalid argument"); + } + } + + public void v(int plane, boolean enable) { + switch(plane) { + case 0: mode4(0x08, row, col, 1, enable); return; + case 1: mode4(0x08, row, col, 3, enable); return; + case 2: mode4(0x08, row, col, 4, enable); return; + case 3: mode4(0x08, row, col, 7, enable); return; + case 4: mode4(0x00, row, col, 7, enable); return; + default: throw new RuntimeException("invalid argument"); + } + } + + public boolean vx(int plane) { + switch(plane) { + case 0: return (mode4(0x08, row, col) & (1<<1)) != 0; + case 1: return (mode4(0x08, row, col) & (1<<3)) != 0; + case 2: return (mode4(0x08, row, col) & (1<<4)) != 0; + case 3: return (mode4(0x08, row, col) & (1<<7)) != 0; + case 4: return (mode4(0x00, row, col) & (1<<7)) != 0; + default: throw new RuntimeException("invalid argument"); + } + } + + + public int ti_source() { + switch(mode4(1, row, col) & 0x30) { + case 0x20: return zi(); + case 0x10: return FB; + case 0x00: return wi(); + default: throw new Error("ack!"); + } + } + + public int t() { + System.err.println("found " + (mode4(1, row, col) & 0x34)); + switch(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_W: result = 0x34; break; + case TMUX_Z: result = 0x20; break; // TOTALLYBOGUS throw new Error("not implemented, but should be possible"); + case TMUX_W_AND_Z: result = 0x00; break; + case TMUX_FB: result = 0x34; break; /* I think this is actually W_AND_FB, sadly */ + case TMUX_W_AND_FB: result = 0x14; break; + //default: throw new RuntimeException("unknown code! " + code); + default: result = 0x00; break; + } + 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 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... + // 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"); + int result = 0; + // 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; + mode4(1, row, col, result, 0x34); + } + + + public void c(int source) { + switch(source) { + case XLUT: mode4(1, row, col, 0x00, 0xc0); break; + case YLUT: mode4(1, row, col, 0x40, 0xc0); break; + case ZMUX: mode4(1, row, col, 0x80, 0xc0); break; + default: throw new RuntimeException("Invalid Argument"); + } + } + public int c() { + int cval = mode4(1, row, col) & 0xc0; + switch (cval) { + case 0x00: return XLUT; + case 0x40: return YLUT; + case 0x80: return ZMUX; + } + throw new Error("c() => " + cval); + } + public void b(boolean registered) { mode4(1, row, col, 3, !registered); } + public void f(boolean registered) { mode4(1, row, col, 2, !registered); } + public boolean xo() { return (mode4(1, row, col) & 0x01) != 0; } + public boolean yo() { return (mode4(1, row, col) & 0x02) != 0; } + public void xo(boolean center) { mode4(1, row, col, 0, center); } + public void yo(boolean center) { mode4(1, row, col, 1, center); } + + public void xo(Cell c) { + if (c.row==row || c.col==col) { // use the y-input + xlut(LUT_OTHER); + yi(c); + } else { + xlut(LUT_SELF); + xi(c); + } + xo(false); + } + + public void yo(Cell c) { + if (!(c.row==row || c.col==col)) { // use the x-input + ylut(LUT_OTHER); + xi(c); + } else { + ylut(LUT_SELF); + yi(c); + } + yo(false); + } + + public boolean b() { return (mode4(1, row, col) & (1 << 3)) == 0; } + public boolean f() { return (mode4(1, row, col) & (1 << 2)) == 0; } + public boolean x() { return (mode4(1, row, col) & (1 << 1)) != 0; } + public boolean y() { return (mode4(1, row, col) & (1 << 0)) != 0; } + + public int oe() { + switch (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: mode4(0x02, row, col, 0, 0x3); break; + case H4: mode4(0x02, row, col, 1, 0x3); break; + case V4: mode4(0x02, row, col, 2, 0x3); break; + default: throw new RuntimeException("invalid argument"); + } + } + + public int xi() { + // FIXME: can be multiple + if ((mode4(0x03, row, col) & (1<<4))!=0) return L4; + switch(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 L0; + case (1<<2): return L1; + case (1<<1): return L2; + case (1<<0): return L3; + case 0: return NONE; + default: throw new Error(); + } + } + + public void xi(int source) { + switch(source) { + case SW: mode4(0x03, row, col, 4, false); mode4(0x05, row, col, 1<<7); break; + case NE: mode4(0x03, row, col, 4, false); mode4(0x05, row, col, 1<<6); break; + case SE: mode4(0x03, row, col, 4, false); mode4(0x05, row, col, 1<<5); break; + case NW: mode4(0x03, row, col, 4, false); mode4(0x05, row, col, 1<<4); break; + + case L0: mode4(0x03, row, col, 4, false); mode4(0x05, row, col, 1<<3); break; + case L1: mode4(0x03, row, col, 4, false); mode4(0x05, row, col, 1<<2); break; + case L2: mode4(0x03, row, col, 4, false); mode4(0x05, row, col, 1<<1); break; + case L3: mode4(0x03, row, col, 4, false); mode4(0x05, row, col, 1<<0); break; + case L4: mode4(0x03, row, col, 4, true); mode4(0x05, row, col, 0); break; + + case NONE: mode4(0x03, row, col, 4, false); mode4(0x05, row, col, 0); break; + default: throw new RuntimeException("invalid argument"); + } + } + + public void xi(SectorWire sw) { + if (!sw.touches(this)) throw new RuntimeException("invalid argument"); + xi(sw.plane); + } + + public void xi(Cell c) { + if (c.row==row-1 && c.col==col-1) xi(SW); + else if (c.row==row+1 && c.col==col-1) xi(NW); + else if (c.row==row-1 && c.col==col+1) xi(SE); + else if (c.row==row+1 && c.col==col+1) xi(NE); + else throw new RuntimeException("invalid argument"); + } + + public int yi() { + if ((mode4(0x02, row, col) & (1<<6))!=0) return L4; + switch(mode4(0x04, row, col) & 0xff) { + case 0x80: return NORTH; + case (1<<5): return SOUTH; + case (1<<6): return WEST; + case (1<<4): return EAST; + 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(); + } + } + + public void yi(int source) { + switch(source) { + case NORTH: mode4(0x02, row, col, 6, false); mode4(0x04, row, col, 1<<7); break; + case SOUTH: mode4(0x02, row, col, 6, false); mode4(0x04, row, col, 1<<5); break; + case WEST: mode4(0x02, row, col, 6, false); mode4(0x04, row, col, 1<<6); break; + case EAST: mode4(0x02, row, col, 6, false); mode4(0x04, row, col, 1<<4); break; + case L4: mode4(0x02, row, col, 6, true); mode4(0x04, row, col, 0); break; + case L3: mode4(0x02, row, col, 6, false); mode4(0x04, row, col, 1<<0); break; + case L2: mode4(0x02, row, col, 6, false); mode4(0x04, row, col, 1<<1); break; + case L1: mode4(0x02, row, col, 6, false); mode4(0x04, row, col, 1<<2); break; + case L0: mode4(0x02, row, col, 6, false); mode4(0x04, row, col, 1<<3); break; + case NONE: mode4(0x02, row, col, 6, false); mode4(0x04, row, col, 0); break; + default: throw new RuntimeException("invalid argument"); + } + } + + public void yi(SectorWire sw) { + if (!sw.touches(this)) throw new RuntimeException("invalid argument"); + yi(sw.plane); + } + + public void yi(Cell c) { + if (c.row==row-1 && c.col==col) yi(SOUTH); + else if (c.row==row+1 && c.col==col) yi(NORTH); + else if (c.row==row && c.col==col-1) yi(WEST); + else if (c.row==row && c.col==col+1) yi(EAST); + else throw new RuntimeException("invalid argument"); + } + + public void wi(SectorWire sw) { + if (!sw.touches(this)) throw new RuntimeException("invalid argument"); + wi(sw.plane); + } + + public void wi(int source) { + switch(source) { + case L4: mode4(0x03, row, col, 1<<5, 0xEC); break; + case L3: mode4(0x03, row, col, 1<<6, 0xEC); break; + case L2: mode4(0x03, row, col, 1<<7, 0xEC); break; + case L1: mode4(0x03, row, col, 1<<3, 0xEC); break; + case L0: mode4(0x03, row, col, 1<<2, 0xEC); break; + case NONE: mode4(0x03, row, col, 0, 0xEC); break; + default: throw new RuntimeException("invalid argument"); + } + } + + public int wi() { + int who = 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: " + who); + } + } + + + public void zi(SectorWire sw) { + if (!sw.touches(this)) throw new RuntimeException("invalid argument"); + zi(sw.plane); + } + + public void zi(int source) { + switch(source) { + case L4: mode4(0x02, row, col, 1<<7, 0xDB); break; + case L3: mode4(0x02, row, col, 1<<5, 0xDB); break; + case L2: mode4(0x02, row, col, 1<<4, 0xDB); break; + case L1: mode4(0x02, row, col, 1<<3, 0xDB); break; + case L0: mode4(0x02, row, col, 1<<2, 0xDB); break; + case NONE: mode4(0x02, row, col, 0, 0xDB); break; + default: throw new RuntimeException("invalid argument"); + } + } + + public int zi() { + switch(mode4(0x02, row, col) & 0x9B) { + 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: zi=="+(mode4(0x02, row, col) & 0x9B)); + } + } + + + public void generalized_c_element() { + + /* + ylut(LUT_SELF & (~LUT_OTHER)); + xlut((~LUT_SELF) | LUT_OTHER); + c(ZMUX); + zi(L2); + //h(L2, true); + out(L2, true); + xo(true); + yo(true); + */ + + //ylut(0xB2); + ylut((LUT_SELF & ~LUT_OTHER) | (LUT_Z & ~LUT_OTHER) | (LUT_Z & LUT_SELF & LUT_OTHER)); + xlut(LUT_Z); + c(YLUT); + f(false); + b(false); + t(false, false, true); + yo(false); + xo(false); + } + + + // Relevance ////////////////////////////////////////////////////////////////////////////// + public boolean relevant() { + return xo_relevant() || yo_relevant() || out_relevant(); + } + + 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; + case NW: return nw() != null && nw().xi()==SE; + case SE: return se() != null && se().xi()==NW; + case SW: return sw() != null && sw().xi()==NE; + 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++) { + + // FIXME FIXME FIXME + if (i==3) continue; + + 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_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); } + /* + public IOB fromPin(int pin) { + if (pin >= 4 && pin <= 11) return io(pin-3); + if (pin >= 15 && pin <= 18) return io(pin-2); + if (pin >= 19 && pin <= 24) return io(pin); + if (pin >= 27 && pin <= 30) return io(pin-2); + if (pin >= 33 && pin <= 36) return io(pin); + if (pin >= 38 && pin <= 47) return io(pin+1); + + + if (pin >= 33 && pin <= 36) return io(pin+36); + if (pin >= 38 && pin <= 41) return io(pin+43); + if (pin >= 42 && pin <= 43) return io(pin+47); + if (pin >= 44 && pin <= 47) return io(pin+49); + if (pin >= 57 && pin <= 62) return io(pin+40); + if (pin >= 63 && pin <= 66) return io(pin+46); + if (pin >= 68 && pin <= 71) return io(pin+53); + if (pin >= 72 && pin <= 73) return io(pin+53); + if (pin >= 74 && pin <= 75) return io(pin+63); + if (pin >= 76 && pin <= 77) return io(143+(pin-76)); + if (pin >= 80 && pin <= 81) return io(145+(pin-80)); + if (pin >= 82 && pin <= 85) return io(151+(pin-82)); + if (pin >= 86 && pin <= 89) return io(165+(pin-86)); + if (pin >= 91 && pin <= 94) return io(177+(pin-91)); + if (pin >= 95 && pin <= 96) return io(183+(pin-95)); + if (pin >= 97 && pin <= 100) return io(189+(pin-97)); + if (pin >= 161 && pin <= 164) return io(289+(pin-161)); + if (pin >= 165 && pin <= 166) return io(297+(pin-165)); + if (pin >= 167 && pin <= 168) return io(303+(pin-167)); + if (pin >= 169 && pin <= 170) return io(309+(pin-169)); + if (pin >= 172 && pin <= 173) return io(313+(pin-172)); + if (pin >= 174 && pin <= 175) return io(325+(pin-174)); + if (pin >= 176 && pin <= 179) return io(327+(pin-176)); + if (pin >= 180 && pin <= 181) return io(335+(pin-180)); + if (pin >= 184 && pin <= 185) return io(337+(pin-184)); + if (pin >= 186 && pin <= 191) return io(343+(pin-186)); + if (pin >= 192 && pin <= 193) return io(359+(pin-192)); + if (pin >= 195 && pin <= 196) return io(363+(pin-195)); + if (pin >= 197 && pin <= 200) return io(369+(pin-197)); + if (pin >= 201 && pin <= 204) return io(381+(pin-201)); + } + public io(int ionum) { + if (ionum <= 94) { + int cell = (94 - pin) / 2; + boolean primary = cell * 2 == (94-pin); + } + } + */ + public final class IOB { + public final int col; + public final int row; + public final boolean primary; + public final boolean northsouth; + public IOB(int col, int row, boolean primary, boolean northsouth) { + this.col = col; + this.row = row; + this.northsouth = northsouth; + this.primary = primary; + } + /* + public String dump() { + System.out.println("[ "+ + (schmitt()?"schmitt ":"")+ + (slew()==3?"fast ":slew()==2?"med ":slew()==1?"slow ":"slew-unknown ")+ + (cr()?"cr ":"")+ + (reg()?"reg ":"")+ + + } + */ + public void enableOutput(int direction) { + useoem(true); + output(direction); + pullnone(); + useoem(true); + oem(ALWAYS_ON); + oe(true); + // note: east-side IOBs should have slew=med, others slew=fast + slew((!northsouth && col==1) ? MEDIUM : FAST); + } + public void enableInput() { + schmitt(true); + pullnone(); + } + + public void useoem(boolean use) { mode4(z(3), row, col, 6, use); } + public boolean useoem() { return (mode4(z(3), row, col) & (1<<6))!=0; } + public void schmitt(boolean use) { mode4(z(0), row, col, 7, use); } + public boolean schmitt() { return (mode4(z(0), row, col) & (1<<7))!=0; } + + public void slew(int slew) { + switch(slew) { + case FAST: mode4(z(0), row, col, 3<<5, 0x60); return; + case MEDIUM: mode4(z(0), row, col, 2<<5, 0x60); return; + case SLOW: mode4(z(0), row, col, 1<<5, 0x60); return; + default: throw new Error(); + } + } + + public void oem(int source) { + switch(source) { + case ALWAYS_ON: mode4(z(3), row, col, 1<<5, 0x3f); return; + case ALWAYS_OFF: mode4(z(3), row, col, 0, 0x3f); return; + default: throw new Error(); + } + } + + private int z(int code) { return (northsouth ? 0x70 : 0x60) | (primary ? 0x00 : 0x04) | (code & 0x7); } + public void pullup() { mode4(z(0), row, col, 0x00<<1, 0x06); } + public void pulldown() { mode4(z(0), row, col, 0x03<<1, 0x06); } + public void pullnone() { mode4(z(0), row, col, 0x01<<1, 0x06); } + public void oe(boolean oe) { + int old = mode4(z(1), row, col) & (~(1<<5)); + old |= oe ? 0 : (1<<5); + mode4(z(1), row, col, old & 0xff); + } + + public void output(int which) { + switch(which) { + case NONE: + mode4(z(1), row, col, 0, 0x1f); return; + case WEST: case EAST: case NORTH: case SOUTH: + mode4(z(1), row, col, 1<<0, 0x1f); return; + case NW: case SW: case NE: case SE: + mode4(z(1), row, col, 1<<1, 0x1f); return; + default: throw new Error(); + } + } + + } + + }