Memory Map

The following is a memory map that was generated based on the MAME source code (.180).  This information is only as accurate as the MAME driver is.  If you see any errors, please let me know what that error is.
 
The Memory Area is related to where the information is from (CPU, Sound Board, etc..), and it may also reflect what it has in common with other hardware.
Memory Area:sspeedr_io_map
Address RangeLengthFunctionDescription
0x00001Read PortIN0
0x003fPositionalActive High
0x0000-0x00012Writesspeedr_sound_w
0x00011Read PortIN1
0x001fPositional VActive High
0x00021Writesspeedr_lamp_w
0x00031Read PortDSW
0x0003CoinageActive High
0x00012C_1CActive High
0x00001C_1CActive High
0x00032C_3CActive High
0x00021C_2CActive High
0x000060 secondsActive High
0x000470 secondsActive High
0x000880 secondsActive High
0x000c90 secondsActive High
0x000020 secondsActive High
0x001030 secondsActive High
0x00e0Service_ModeActive High
0x0020Play ModeActive High
0x00a0RAM/ROM TestActive High
0x00e0Accelerator AdjustmentActive High
0x0004-0x00052Writesspeedr_time_w
0x00041Read PortIN2
0x0001UnusedActive Low
0x0002UnusedActive Low
0x0004ShifterActive Low
0x0008Coin 1Active Low
0x00061Device Writewatchdog, watchdog_timer_device, reset_w
0x00101Writesspeedr_driver_horz_w
0x00111Writesspeedr_driver_pic_w
0x00121Writesspeedr_driver_horz_2_w
0x00131Writesspeedr_drones_horz_w
0x00141Writesspeedr_drones_horz_2_w
0x00151Writesspeedr_drones_mask_w
0x00161Writesspeedr_driver_vert_w
0x0017-0x00182Writesspeedr_track_vert_w
0x00191Writesspeedr_track_horz_w
0x001A1Writesspeedr_track_horz_2_w
0x001B1Writesspeedr_track_ice_w
0x001C-0x001E3Writesspeedr_drones_vert_w
0x001F1Writesspeedr_int_ack_w
Memory Area:sspeedr_map
Address RangeLengthFunctionDescription
0x0000-0x0FFF4096ROM
0x2000-0x21FF512RAM
0x7F00-0x7F1724Writesspeedr_score_w
 

ROM Map for this game

 
This is the ROM map for the game.  This should tell you what address the ROM is at, how big it is, what it's used for.   
Memory Area:gfx1
Address RangeLengthLabel/LocationDescription
0x0000-0x07FF2048ssrm762a.f3CRC(de4653a9) (Fluke: 843B)
Memory Area:gfx2
Address RangeLengthLabel/LocationDescription
0x0000-0x07FF2048ssrm762b.j3CRC(ef6a1cd6) (Fluke: 4A98)
Memory Area:gfx3
Address RangeLengthLabel/LocationDescription
0x0000-0x07FF2048ssrm762c.l3CRC(ebaad3ee) (Fluke: 7C83)
Memory Area:maincpu
Address RangeLengthLabel/LocationDescription
0x0000-0x07FF2048ssr0000.pgmCRC(bfc7069a) (Fluke: 7BD1)
0x0800-0x0FFF2048ssr0800.pgmCRC(ec46b59a) (Fluke: 509F)
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