## Prohibit the automatic placement of pins that are connected to VCC or GND for configuration.
CONFIG PROHIBIT=P99;
CONFIG PROHIBIT=P43;
CONFIG PROHIBIT=P42;
CONFIG PROHIBIT=P39;
CONFIG PROHIBIT=P49;
CONFIG PROHIBIT=P48;
CONFIG PROHIBIT=P47;
CONFIG PART=XC3S500E-VQ100-5;

# Clock
NET "CLK_32MHZ" LOC = "P89" | IOSTANDARD = LVCMOS25 | PERIOD=31.25ns;

# Reset
NET "RESET" LOC="P67"  | IOSTANDARD=LVTTL | PULLDOWN;

# Joypad
NET "BTN_UP"      LOC="P54"  | IOSTANDARD=LVTTL | DRIVE=8 | SLEW=FAST;
NET "BTN_DOWN"    LOC="P41"  | IOSTANDARD=LVTTL | DRIVE=8 | SLEW=FAST;
NET "BTN_LEFT"    LOC="P58"  | IOSTANDARD=LVTTL | DRIVE=8 | SLEW=FAST;
NET "BTN_RIGHT"   LOC="P36"  | IOSTANDARD=LVTTL | DRIVE=8 | SLEW=FAST;

# PS/2, port A
NET "PS2A_DAT"    LOC="P91"  | IOSTANDARD=LVTTL | DRIVE=8 | SLEW=FAST | PULLUP;
NET "PS2A_CLK"    LOC="P92"  | IOSTANDARD=LVTTL | DRIVE=8 | SLEW=FAST | PULLUP;

# PS/2, port B
NET "PS2B_DAT"    LOC="P70"  | IOSTANDARD=LVTTL | DRIVE=8 | SLEW=FAST | PULLUP;
NET "PS2B_CLK"    LOC="P79"  | IOSTANDARD=LVTTL | DRIVE=8 | SLEW=FAST | PULLUP;

# Joystick, port A
NET "JOYA_UP"    LOC="P34"   | IOSTANDARD=LVTTL | DRIVE=8 | SLEW=FAST | PULLUP; # B12
NET "JOYA_DOWN"  LOC="P25"   | IOSTANDARD=LVTTL | DRIVE=8 | SLEW=FAST | PULLUP; # B14
NET "JOYA_LEFT"  LOC="P22"   | IOSTANDARD=LVTTL | DRIVE=8 | SLEW=FAST | PULLUP; # B15
NET "JOYA_RIGHT" LOC="P23"   | IOSTANDARD=LVTTL | DRIVE=8 | SLEW=FAST | PULLUP; # A1
NET "JOYA_FIRE1" LOC="P32"   | IOSTANDARD=LVTTL | DRIVE=8 | SLEW=FAST | PULLUP; # B13
NET "JOYA_FIRE2" LOC="P33"   | IOSTANDARD=LVTTL | DRIVE=8 | SLEW=FAST | PULLUP; # A3
NET "JOYA_GND"   LOC="P18"   | IOSTANDARD=LVTTL | DRIVE=8 | SLEW=FAST | PULLUP; # A0

# Joystick, port B
NET "JOYB_UP"    LOC="P5"    | IOSTANDARD=LVTTL | DRIVE=8 | SLEW=FAST | PULLUP; # B12
NET "JOYB_DOWN"  LOC="P10"   | IOSTANDARD=LVTTL | DRIVE=8 | SLEW=FAST | PULLUP; # B14
NET "JOYB_LEFT"  LOC="P11"   | IOSTANDARD=LVTTL | DRIVE=8 | SLEW=FAST | PULLUP; # B15
NET "JOYB_RIGHT" LOC="P15"   | IOSTANDARD=LVTTL | DRIVE=8 | SLEW=FAST | PULLUP; # A1
NET "JOYB_FIRE1" LOC="P9"    | IOSTANDARD=LVTTL | DRIVE=8 | SLEW=FAST | PULLUP; # B13
NET "JOYB_FIRE2" LOC="P17"   | IOSTANDARD=LVTTL | DRIVE=8 | SLEW=FAST | PULLUP; # A3
NET "JOYB_GND"   LOC="P12"   | IOSTANDARD=LVTTL | DRIVE=8 | SLEW=FAST | PULLUP; # A0

# LEDs
NET "LED<3>"      LOC="P35"  | IOSTANDARD=LVTTL;                                # A4
NET "LED<2>"      LOC="P40"  | IOSTANDARD=LVTTL;                                # A5
NET "LED<1>"      LOC="P53"  | IOSTANDARD=LVTTL;                                # A6
NET "LED<0>"      LOC="P57"  | IOSTANDARD=LVTTL;                                # A7

# VGA
NET "VGA_R<0>"    LOC="P98"  | IOSTANDARD=LVTTL | DRIVE=8 | SLEW=FAST;          # C4
NET "VGA_R<1>"    LOC="P2"   | IOSTANDARD=LVTTL | DRIVE=8 | SLEW=FAST;          # C5
NET "VGA_R<2>"    LOC="P3"   | IOSTANDARD=LVTTL | DRIVE=8 | SLEW=FAST;          # C6
NET "VGA_R<3>"    LOC="P4"   | IOSTANDARD=LVTTL | DRIVE=8 | SLEW=FAST;          # C7
NET "VGA_G<0>"    LOC="P68"  | IOSTANDARD=LVTTL | DRIVE=8 | SLEW=FAST;          # B4
NET "VGA_G<1>"    LOC="P66"  | IOSTANDARD=LVTTL | DRIVE=8 | SLEW=FAST;          # B5
NET "VGA_G<2>"    LOC="P63"  | IOSTANDARD=LVTTL | DRIVE=8 | SLEW=FAST;          # B6
NET "VGA_G<3>"    LOC="P61"  | IOSTANDARD=LVTTL | DRIVE=8 | SLEW=FAST;          # B7
NET "VGA_B<0>"    LOC="P83"  | IOSTANDARD=LVTTL | DRIVE=8 | SLEW=FAST;          # B1
NET "VGA_B<1>"    LOC="P78"  | IOSTANDARD=LVTTL | DRIVE=8 | SLEW=FAST;          # B2
NET "VGA_B<2>"    LOC="P71"  | IOSTANDARD=LVTTL | DRIVE=8 | SLEW=FAST;          # B3
NET "VGA_B<3>"    LOC="P85"  | IOSTANDARD=LVTTL | DRIVE=8 | SLEW=FAST;          # B0
NET "VGA_VSYNC"   LOC="P94"  | IOSTANDARD=LVTTL | DRIVE=8 | SLEW=FAST;          # B3
NET "VGA_HSYNC"   LOC="P95"  | IOSTANDARD=LVTTL | DRIVE=8 | SLEW=FAST;          # B3