Williams/Bally WPC Security

Cabinet inputs

Addresses 1-8 are the four coin chutes and the four coin-door service buttons in printed row order (internal array column 0, CORE_COINDOORSWCOL).

Matrix inputs

Public matrix addresses use WPC column/row notation 11-88, where the left digit is the drive column (internal array index 1-8) and the right digit is the return row 1-8; wpc_m2sw(col,row) = col*10+row+1. Column indices 9 and 10 (public 91-98/101-108) are a gap in the base allocation that this generation leaves unused unless a specific driver's own getSol/switch-read hook independently claims part of it.

Fliptronic inputs

This generation always has Fliptronic flipper inputs at internal column 11 (CORE_FLIPPERSWCOL), so 111-118 are the eight EOS/button positions in WPC_swF1..WPC_swF8 order:

These positions are exactly as on WPC-95 and WPC-DCS. A driver with no upper flippers is free to repurpose 115-118 for other switch-matrix-column-11 hardware entirely, or to leave the positions unwired.

Custom switch columns

A driver may declare one or more additional custom switch columns through core_tGameData hw.swCol. PinMAME's fixed custom-column start is internal array index CORE_CUSTSWCOL = CORE_STDSWCOLS = 12 (src/wpc/core.h), one column beyond the Fliptronic column. The same col*10+row+1 formula, reported through the CORE_CUSTSWNO(c,r) macro, places the declared columns as follows:

Further columns continue the same pattern. A definition declares only the addresses its own machine's custom board actually wires. This numbering is a fixed core.h offset, not a driver-visible printed silkscreen number. Any such printed board number must be captured as a manual.address alias rather than assumed equal to the public switch number.

Normalization

This generation's WPC_FLIPPERS register read (src/wpc/wpc.c, case WPC_FLIPPERS, gated on (gen & GENWPC_HASWPC95) == 0, and GENWPC_HASWPC95 = GEN_WPC95 | GEN_WPC95DCS excludes GEN_WPCSECURITY) unconditionally returns the bitwise complement of the entire flipper switch matrix column exactly as on WPC-DCS and WPC-Fliptronic. The public Fliptronic state is already normalized here; a recreation must not re-invert it.

Security-PIC row read

Separately, this generation's WPC_SWROWREAD register read (src/wpc/wpc.c, case WPC_SWROWREAD) is gated on GENWPC_HASPIC = GEN_WPCSECURITY | GEN_WPC95 | GEN_WPC95DCS and dispatches to the emulated security-PIC row reader (wpc_pic_r) instead of the plain core_getSwCol column reader that WPC-DCS/WPC-Fliptronic use. This changes how the emulator internally scans the matrix through the security handshake but does not change the public col*10+row+1 address space or its normalization: core_getSw/core_setSw/core_updInvSw apply identically regardless of GENWPC_HASPIC.

Standard and state outputs

This generation exposes standard drivers 1-28 (src/wpc/core.c core_getSol, solNo <= 28). Addresses 29-30 mirror two WPC J111 general-purpose GPIO bits, and 31-32 use the same remap (core_getSol solNo <= 32 branch, "Remap WPC GameOn/J111 GPIO", gated on GEN_ALLWPC, not WPC95-specific). Of those, 31 is PinMAME's synthetic fast-flip game-on state taken from the driver's RAM flag when wpc_set_fastflip_addr is set, and 32 is normally zero.

No LPDC range

Unlike WPC-95/WPC-95DCS, this generation has no integrated LPDC board, so 37-44 are not a duplicated general-purpose output range. Pinned PinMAME's core_getSol dispatch (src/wpc/core.c, the "37-44 WPC95 & S11 extra" branch) only serves that range for GEN_WPC95/GEN_WPC95DCS/GEN_ALLS11, and returns constant 0 for this generation. Therefore 37-44 are simply unused address space here unless a specific driver's own getSol hook independently claims part of it.

Custom outputs

Above that boundary, 51 upward are the game-specific custom solenoids a driver may publish through its own core_tGameData.hw.getSol handler, up to as many as its own hw.custSol count declares (CORE_CUSTSOLNO(n) = CORE_FIRSTCUSTSOL - 1 + n). A definition declares only the addresses its own machine publishes.

A driver's own custom-solenoid board may carry silkscreened item numbers that do not match this public address space. Any such printed manual item number must be captured as a manual.address alias rather than assumed equal to the public solenoid number.

PinMAME applies the shared wpc_sw2m/wpc_m2sw conversion to lamps (src/wpc/wpc.c MDRV_LAMP_CONV). ChangedLamps therefore reports public matrix addresses 11-88 rather than sequential indices, where the left digit is the drive column and the right digit is the return row. A driver may declare additional lamp columns through core_tGameData hw.lampCol; a definition declares only the columns its own machine populates.