Search

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.
Speed Up (bootleg, 1983)
Memory Area:z80_io
Address RangeLengthFunctionDescription
0x00001Read, Write NOPpolepos_adc_r,
Memory Area:z80_map
Address RangeLengthFunctionDescription
0x0000-0x2FFF12288ROM
0x3000-0x37FF2048Mirror, RAM, Shared0x0800, , nvram (/* Battery Backup */)
0x4000-0x47FF2048Read/Writepolepos_sprite_r, polepos_sprite_w (/* Motion Object */)
0x4800-0x4BFF1024Read/Writepolepos_road_r, polepos_road_w (/* Road Memory */)
0x4C00-0x4FFF1024Read/Writepolepos_alpha_r, polepos_alpha_w (/* Alphanumeric (char ram) */)
0x5000-0x57FF2048Read/Writepolepos_view_r, polepos_view_w (/* Background Memory */)
0x8000-0x83BF960Mirror, RAM0x0c00, (/* Sound Memory */)
0x83C0-0x83FF64Mirror, Device Read/Write0x0c00, namco, namco_device, polepos_sound_r, polepos_sound_w (/* Sound data */)
0x90001Mirror, Device Read/Write0x0eff, 06xx, namco_06xx_device, data_r, data_w
0x91001Mirror, Device Read/Write0x0eff, 06xx, namco_06xx_device, ctrl_r, ctrl_w
0xA000-0xA0078Mirror, Write0x0cf8, polepos_latch_w (/* misc latches */)
0xA0001Mirror, Read0x0cff, polepos_ready_r (/* READY */)
0xA1001Mirror, Device Write0x0cff, watchdog, watchdog_timer_device, reset_w
0xA2001Mirror, Device Write0x0cff, polepos, polepos_sound_device, polepos_engine_sound_lsb_w (/* Car Sound ( Lower Nibble ) */)
0xA3001Mirror, Device Write0x0cff, polepos, polepos_sound_device, polepos_engine_sound_msb_w (/* Car Sound ( Upper Nibble ) */)
Memory Area:z8002_map
Address RangeLengthFunctionDescription
0x0000-0x7FFF32768ROM
0x6000-0x60012Mirror, Write0x0ffe, polepos_z8002_nvi_enable_w (/* NVI enable - *NOT* shared by the two CPUs */)
0x8000-0x8FFF4096Read/Write, Sharedpolepos_sprite16_r, polepos_sprite16_w, sprite16_memory (/* Motion Object */)
0x9000-0x97FF2048Read/Write, Sharedpolepos_road16_r, polepos_road16_w, road16_memory (/* Road Memory */)
0x9800-0x9FFF2048Read/Write, Sharedpolepos_alpha16_r, polepos_alpha16_w, alpha16_memory (/* Alphanumeric (char ram) */)
0xA000-0xAFFF4096Read/Write, Sharedpolepos_view16_r, polepos_view16_w, view16_memory (/* Background memory */)
0xC000-0xC0012Mirror, Write0x38fe, polepos_view16_hscroll_w (/* Background horz scroll position */)
0xC100-0xC1012Mirror, Write0x38fe, polepos_road16_vscroll_w (/* Road vertical position */)
 

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:52xx
Address RangeLengthLabel/LocationDescription
0x0000-0x1FFF8192tr11.b1CRC(5b4cf05e),voice (Fluke: 18FC)
Memory Area:engine
Address RangeLengthLabel/LocationDescription
0x0000-0x1FFF8192tr15.binCRC(b5ad4d5f),engine sound (Fluke: 67F2)
0x2000-0x3FFF8192tr16.binCRC(8fdd2f6f),engine sound (Fluke: FBE3)
Memory Area:gfx1
Address RangeLengthLabel/LocationDescription
0x0000-0x0FFF4096tr28.binCRC(cd80b4c3)
Memory Area:gfx2
Address RangeLengthLabel/LocationDescription
0x0000-0x0FFF4096tr29.binCRC(c6e15c21) (Fluke: A980)
Memory Area:gfx4
Address RangeLengthLabel/LocationDescription
0x2000-0x3FFF8192tr19.binCRC(1ea04ccd)
0x4000-0x5FFF8192tr21.binCRC(bd7b4a62)
0xA000-0xBFFF8192tr20.binCRC(c572c6ed)
0xC000-0xDFFF8192tr22.binCRC(db1bcdd8)
Memory Area:gfx5
Address RangeLengthLabel/LocationDescription
0x0000-0x1FFF8192tr30.binCRC(ee6b3315),road control (Fluke: 9629)
0x2000-0x3FFF8192tr31.binCRC(6d1e7042),road bits 1 (Fluke: 96E2)
0x4000-0x4FFF4096tr32.binCRC(4e97f101),road bits 2 (Fluke: C475)
Memory Area:gfx6
Address RangeLengthLabel/LocationDescription
0x0000-0x0FFF4096tr27.binCRC(a61bff15),vertical scaling (Fluke: ED75)
Memory Area:maincpu
Address RangeLengthLabel/LocationDescription
0x0000-0x1FFF8192tr9b.binCRC(538bd0cb)
0x2000-0x2FFF4096tr10.binCRC(7174bcb7) (Fluke: 7B7B)
Memory Area:namco
Address RangeLengthLabel/LocationDescription
0x0000-0x00FF2567052-5.e9CRC(8568decc),Namco sound (Fluke: 490A)
Memory Area:proms
Address RangeLengthLabel/LocationDescription
0x0000-0x00FF2567052-7.k21CRC(f07ff2ad),red palette (Fluke: F9E6)
0x0100-0x01FF2567052-8.k20CRC(adbde7d7),green palette (Fluke: B2CC)
0x0200-0x02FF2567052-9.k19CRC(ddac786a),blue palette (Fluke: 286E)
0x0300-0x03FF2567052-10.h15CRC(5af3f710),alpha color (Fluke: 9E07)
0x0400-0x04FF2567052-11.j15CRC(8c90e36e),background color (Fluke: 6A53)
0x0500-0x05FF2567052-15.d1CRC(2d502464),vertical position low (Fluke: DC4B)
0x0600-0x06FF2567052-16.d2CRC(027aa62c),vertical position med (Fluke: 6A0C)
0x0700-0x07FF2567052-17.d3CRC(1f8d0df3),vertical position hi (Fluke: 6A8E)
0x0800-0x0BFF10247122.a19CRC(7afc7cfc),road color (Fluke: DE0B)
0x0C00-0x0FFF10247122.e7CRC(2f1079ee),sprite color (Fluke: FD28)
0x1000-0x101F327051-13.l7CRC(4330a51b),video RAM address decoder (not used) (Fluke: E1B4)
0x1020-0x103F327051-14.l8CRC(4330a51b),video RAM address decoder (not used) (Fluke: E1B4)
Memory Area:user1
Address RangeLengthLabel/LocationDescription
0x0000-0x00FF2567052-4.c14CRC(0e742cb1),sync chain (Fluke: 2DFA)
© Copyright 2009-2025, ClassicSoft, LLC. All rights reserved
Powered by the ClassicSoft Web Content Framework V3