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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.
Pro Baseball Skill Tryout (Data East Corporation, 1985)
Memory Area:main_cpu
Address RangeLengthFunctionDescription
0x0000-0x07FF2048RAM
0x1000-0x17FF2048RAM Write, Sharedvideoram_w, videoram
0x2000-0x3FFF8192ROM Bankbank1
0x4000-0xBFFF32768ROM
0xC800-0xC87F128RAM, Sharedspriteram
0xCC00-0xCC7F128RAM, Sharedspriteram2
0xD000-0xD7FF2048Read/Writevram_r, vram_w
0xE0001Read PortDSW
0x00002C_1CActive High
0x00031C_1CActive High
0x00021C_2CActive High
0x00011C_3CActive High
0x00002C_1CActive High
0x000c1C_1CActive High
0x00081C_2CActive High
0x00041C_3CActive High
0x0010OffActive High
0x0000OnActive High
0x0020OffActive High
0x0000OnActive High
0x0000UprightActive High
0x0040CocktailActive High
0x0080OffActive High
0x0000OnActive High
0xE0011Read PortP1
0x0001Joystick RightActive Low
0x0002Joystick LeftActive Low
0x0004Joystick UpActive Low
0x0008Joystick DownActive Low
0x0010Button 1Active Low
0x0020Button 2Active Low
0x0040UnknownActive Low
0x0080UnknownActive Low
0xE0021Read PortP2
0x0001Joystick RightActive Low
0x0002Joystick LeftActive Low
0x0004Joystick UpActive Low
0x0008Joystick DownActive Low
0x0010Button 1Active Low
0x0020Button 2Active Low
0x0040UnknownActive Low
0x0080UnknownActive Low
0xE0031Read PortSYSTEM
0x0001Start 1Active Low
0x0002Start 2Active Low
0x0004Service 1Active Low
0x0008Coin 1Active Low
0x0010Coin 2Active Low
0x0020UnknownActive Low
0x0040UnknownActive Low
0x0080CustomActive Low
0xE3011Writeflipscreen_w
0xE3021Writebankswitch_w
0xE4011Writevram_bankswitch_w
0xE402-0xE4043Write Only, Sharedgfx_control
0xE4141Writesound_w
0xE4171Writenmi_ack_w
0xFFF0-0xFFFF16ROM, Regionmaincpu, 0xbff0 (/* reset vectors */)
Memory Area:sound_cpu
Address RangeLengthFunctionDescription
0x0000-0x07FF2048RAM
0x4000-0x40012Device Read/Writeymsnd, ym2203_device, read, write
0xA0001Device Readsoundlatch, generic_latch_8_device, read
0xC000-0xFFFF16384ROM
0xD0001Writesound_irq_ack_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:audiocpu
Address RangeLengthLabel/LocationDescription
0xC000-0xFFFF16384ch00-1.binCRC(8b33d968) (Fluke: 1318)
Memory Area:gfx1
Address RangeLengthLabel/LocationDescription
0x0000-0x3FFF16384ch13.binCRC(a9619c58) (Fluke: 2B09)
Memory Area:gfx2
Address RangeLengthLabel/LocationDescription
0x0000-0x3FFF16384ch09.binCRC(9c5e275b) (Fluke: 9BA9)
0x4000-0x7FFF16384ch08.binCRC(88396abb) (Fluke: B373)
0x8000-0xBFFF16384ch07.binCRC(901b5f5e) (Fluke: 9B2D)
0xC000-0xFFFF16384ch06.binCRC(d937e326) (Fluke: E1E1)
0x10000-0x13FFF16384ch05.binCRC(27f0e7be) (Fluke: BDE2)
0x14000-0x17FFF16384ch04.binCRC(019e0b75) (Fluke: D6A3)
0x18000-0x1BFFF16384ch03.binCRC(b87e2464) (Fluke: B092)
0x1C000-0x1FFFF16384ch02.binCRC(62369772) (Fluke: 2A0E)
0x20000-0x23FFF16384ch01.binCRC(ee6d57b5) (Fluke: FCE9)
Memory Area:maincpu
Address RangeLengthLabel/LocationDescription
0x4000-0x7FFF16384ch10-1.binCRC(d046231b) (Fluke: 05BE)
0x8000-0xBFFF16384ch11.binCRC(4d00b6f0) (Fluke: 57A3)
0x10000-0x13FFF16384ch12.binCRC(bcd221be) (Fluke: 4172)
Memory Area:proms
Address RangeLengthLabel/LocationDescription
0x0000-0x001F32ch14.bprCRC(8ce19925) (Fluke: BB63)
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