Backup RAM: Difference between revisions
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| Line 16: | Line 16: | ||
|$D00000 | |$D00000 | ||
|$D0000F | |$D0000F | ||
| | |15 | ||
|$00 | |$00 | ||
|Unused, fill with $00 | |Unused, fill with $00 | ||
| Line 22: | Line 22: | ||
|$D00010 | |$D00010 | ||
|$D0001F | |$D0001F | ||
| | |15 | ||
|"BACKUP RAM OK!Ç" | |"BACKUP RAM OK!Ç" | ||
|The routine at $C125C8 will check if this string is present, if not it will test the ram (using the test_ram routine at $C13134) and re-init the backupram | |The routine at $C125C8 will check if this string is present, if not it will test the ram (using the test_ram routine at $C13134) and re-init the backupram | ||
| Line 34: | Line 34: | ||
|$D00034 | |$D00034 | ||
|$D00035 | |$D00035 | ||
| | |2 | ||
|$00 | |$00 | ||
|"Internal" credit counters for player 1 and player 2 (BCD), used by BIOS only. | |"Internal" credit counters for player 1 and player 2 (BCD), used by BIOS only. | ||
| Line 40: | Line 40: | ||
|$D0003A | |$D0003A | ||
|$D00045 | |$D00045 | ||
|$ | |12 | ||
| | |||
|Cab settings. | |||
;$D0003A: Coins needed for crediting player 1 (initialized to $01) | |||
;$D0003B: Credits added to player 1 (initialized to $01) | |||
;$D0003C: Coins needed for crediting player 2 (initialized to $01) | |||
;$D0003D: Credits added to player 2 (initialized to $02) | |||
;$D00042: Game select (1=Free, 0=Only when credited) (initialized to 0) | |||
;$D00044: Game start compulstion (seconds in BCD) (initialized to $30) | |||
;$D00046: Demo sound (1=Without) (initialized to 0) | |||
|- | |- | ||
|$D00046 | |$D00046 | ||
|$D00046 | |$D00046 | ||
| | |1 | ||
|SOUND_STOP | |SOUND_STOP | ||
|No sound at all if non-zero | |No sound at all if non-zero | ||
| Line 52: | Line 59: | ||
|$D00047 | |$D00047 | ||
|$D00047 | |$D00047 | ||
| | |1 | ||
|SLOT NUMBER | |SLOT NUMBER | ||
|Number of detected slots (2 for slot1) | |Number of detected slots (2 for slot1) | ||
| Line 64: | Line 71: | ||
|$D0005A | |$D0005A | ||
|$D0005D | |$D0005D | ||
| | |4 | ||
|HHMMSSMM | |HHMMSSMM | ||
|Current time, hour is mult by 4 (???), MM is the milliseconds. | |Current time, hour is mult by 4 (???), MM is the milliseconds. | ||
| Line 76: | Line 83: | ||
|$D00104 | |$D00104 | ||
|$D00107 | |$D00107 | ||
| | |4 | ||
|YYMMDDdd | |YYMMDDdd | ||
|Current date | |Current date | ||
| Line 88: | Line 95: | ||
|$D0010A | |$D0010A | ||
|$D0010D | |$D0010D | ||
| | |4 | ||
| | | | ||
|Detailed game start book address | |Detailed game start book address | ||
| Line 94: | Line 101: | ||
|$D0010E | |$D0010E | ||
|$D00111 | |$D00111 | ||
| | |4 | ||
| | | | ||
|Total game start book address | |Total game start book address | ||
| Line 100: | Line 107: | ||
|$D00112 | |$D00112 | ||
|$D00115 | |$D00115 | ||
| | |4 | ||
| | | | ||
|Detailed cabinet coin book address (sub 0x240 for the start book one) | |Detailed cabinet coin book address (sub 0x240 for the start book one) | ||
| Line 106: | Line 113: | ||
|$D00116 | |$D00116 | ||
|$D00119 | |$D00119 | ||
| | |4 | ||
| | | | ||
|Current month cabinet coin book address (sub 0xC for the start book one) | |Current month cabinet coin book address (sub 0xC for the start book one) | ||
| Line 118: | Line 125: | ||
|$D00122 | |$D00122 | ||
|$D00123 | |$D00123 | ||
| | |2 | ||
|$23 | |$23 | ||
|The init_backupram routine write $23 there, purpose unknown. | |The init_backupram routine write $23 there, purpose unknown. | ||
| Line 124: | Line 131: | ||
|$D00124 | |$D00124 | ||
|$D00127 | |$D00127 | ||
| | |4 | ||
|Slot-1 [[NGH number]] and game name ID (see below) | |Slot-1 [[NGH number]] and game name ID (see below) | ||
|If not present $0000 as NGH and $FFFF as game name ID | |If not present $0000 as NGH and $FFFF as game name ID | ||
| Line 130: | Line 137: | ||
|$D00128 | |$D00128 | ||
|$D0012B | |$D0012B | ||
| | |4 | ||
|Slot-2 [[NGH number]] and game name ID (see below) | |Slot-2 [[NGH number]] and game name ID (see below) | ||
|If not present $0000 as NGH and $FFFF as game name ID. | |If not present $0000 as NGH and $FFFF as game name ID. | ||
| Line 137: | Line 144: | ||
|$D0012C | |$D0012C | ||
|$D0012F | |$D0012F | ||
| | |4 | ||
|Slot-3 [[NGH number]] and game name ID (see below) | |Slot-3 [[NGH number]] and game name ID (see below) | ||
|If not present $0000 as NGH and $FFFF as game name ID | |If not present $0000 as NGH and $FFFF as game name ID | ||
| Line 143: | Line 150: | ||
|$D00130 | |$D00130 | ||
|$D00133 | |$D00133 | ||
| | |4 | ||
|Slot-4 [[NGH number]] and game name ID (see below) | |Slot-4 [[NGH number]] and game name ID (see below) | ||
|If not present $0000 as NGH and $FFFF as game name ID | |If not present $0000 as NGH and $FFFF as game name ID | ||
| Line 149: | Line 156: | ||
|$D00134 | |$D00134 | ||
|$D00137 | |$D00137 | ||
| | |4 | ||
|Slot-5 [[NGH number]] and game name ID (see below) | |Slot-5 [[NGH number]] and game name ID (see below) | ||
|If not present $0000 as NGH and $FFFF as game name ID | |If not present $0000 as NGH and $FFFF as game name ID | ||
| Line 155: | Line 162: | ||
|$D00138 | |$D00138 | ||
|$D0013B | |$D0013B | ||
| | |4 | ||
|Slot-6 [[NGH number]] and game name ID (see below) | |Slot-6 [[NGH number]] and game name ID (see below) | ||
|If not present $0000 as NGH and $FFFF as game name ID | |If not present $0000 as NGH and $FFFF as game name ID | ||
| Line 161: | Line 168: | ||
|$D0013C | |$D0013C | ||
|$D0013F | |$D0013F | ||
| | |4 | ||
|Slot-7 [[NGH number]] and game name ID (see below) | |Slot-7 [[NGH number]] and game name ID (see below) | ||
|If not present $0000 as NGH and $FFFF as game name ID | |If not present $0000 as NGH and $FFFF as game name ID | ||
| Line 167: | Line 174: | ||
|$D00140 | |$D00140 | ||
|$D00143 | |$D00143 | ||
| | |4 | ||
|Slot-8 [[NGH number]] and game name ID (see below) | |Slot-8 [[NGH number]] and game name ID (see below) | ||
|If not present $0000 as NGH and $FFFF as game name ID | |If not present $0000 as NGH and $FFFF as game name ID | ||
| Line 173: | Line 180: | ||
|$D00144 | |$D00144 | ||
|$D00147 | |$D00147 | ||
| | |4 | ||
|YYMMDDdd | |YYMMDDdd | ||
|Slot-1 book creation time YEAR-MONTH-DAY-day number | |Slot-1 book creation time YEAR-MONTH-DAY-day number | ||
| Line 179: | Line 186: | ||
|$D00148 | |$D00148 | ||
|$D0014B | |$D0014B | ||
| | |4 | ||
|YYMMDDdd | |YYMMDDdd | ||
|Slot-2 book creation time YEAR-MONTH-DAY-day number | |Slot-2 book creation time YEAR-MONTH-DAY-day number | ||
| Line 191: | Line 198: | ||
|$D00150 | |$D00150 | ||
|$D00153 | |$D00153 | ||
| | |4 | ||
|YYMMDDdd | |YYMMDDdd | ||
|Slot-4 book creation time YEAR-MONTH-DAY-day number | |Slot-4 book creation time YEAR-MONTH-DAY-day number | ||
| Line 197: | Line 204: | ||
|$D00154 | |$D00154 | ||
|$D00157 | |$D00157 | ||
| | |4 | ||
|YYMMDDdd | |YYMMDDdd | ||
|Slot-5 book creation time YEAR-MONTH-DAY-day number | |Slot-5 book creation time YEAR-MONTH-DAY-day number | ||
| Line 203: | Line 210: | ||
|$D00158 | |$D00158 | ||
|$D0015B | |$D0015B | ||
| | |4 | ||
|YYMMDDdd | |YYMMDDdd | ||
|Slot-6 book creation time YEAR-MONTH-DAY-day number | |Slot-6 book creation time YEAR-MONTH-DAY-day number | ||
| Line 209: | Line 216: | ||
|$D0015C | |$D0015C | ||
|$D0015F | |$D0015F | ||
| | |4 | ||
|YYMMDDdd | |YYMMDDdd | ||
|Slot-7 book creation time YEAR-MONTH-DAY-day number | |Slot-7 book creation time YEAR-MONTH-DAY-day number | ||
| Line 215: | Line 222: | ||
|$D00160 | |$D00160 | ||
|$D00163 | |$D00163 | ||
| | |4 | ||
|YYMMDDdd | |YYMMDDdd | ||
|Slot-8 book creation time YEAR-MONTH-DAY-day number | |Slot-8 book creation time YEAR-MONTH-DAY-day number | ||
| Line 221: | Line 228: | ||
|$D001A4 | |$D001A4 | ||
|$D002A7 | |$D002A7 | ||
| | |4 | ||
| | | | ||
|Current month game start book | |Current month game start book | ||
| Line 227: | Line 234: | ||
|$D001A8 | |$D001A8 | ||
|$D002AB | |$D002AB | ||
| | |4 | ||
| | | | ||
|? | |? | ||
| Line 233: | Line 240: | ||
|$D002A0 | |$D002A0 | ||
|$D002AF | |$D002AF | ||
| | |15 | ||
| | | | ||
|Game Name 0 | |Game Name 0 | ||
| Line 239: | Line 246: | ||
|$D002B0 | |$D002B0 | ||
|$D002BF | |$D002BF | ||
| | |15 | ||
| | | | ||
|Game Name 1 | |Game Name 1 | ||
| Line 245: | Line 252: | ||
|$D002C0 | |$D002C0 | ||
|$D002CF | |$D002CF | ||
| | |15 | ||
| | | | ||
|Game Name 2 | |Game Name 2 | ||
| Line 251: | Line 258: | ||
|$D002D0 | |$D002D0 | ||
|$D002DF | |$D002DF | ||
| | |15 | ||
| | | | ||
|Game Name 3 | |Game Name 3 | ||
| Line 257: | Line 264: | ||
|$D002E0 | |$D002E0 | ||
|$D002EF | |$D002EF | ||
| | |15 | ||
| | | | ||
|Game Name 4 | |Game Name 4 | ||
| Line 263: | Line 270: | ||
|$D002F0 | |$D002F0 | ||
|$D002FF | |$D002FF | ||
| | |15 | ||
| | | | ||
|Game Name 5 | |Game Name 5 | ||
| Line 269: | Line 276: | ||
|$D00300 | |$D00300 | ||
|$D0030F | |$D0030F | ||
| | |15 | ||
| | | | ||
|Game Name 6 | |Game Name 6 | ||
| Line 275: | Line 282: | ||
|$D00310 | |$D00310 | ||
|$D0031F | |$D0031F | ||
| | |15 | ||
| | | | ||
|Game Name 7 | |Game Name 7 | ||
Revision as of 19:28, 8 October 2011
The backup RAM is a battery-powered 64KiB RAM space used by MVS systems to store game scores, cab infos and income logs. Access is handled by the BIOSes.
Memory region: $D00000~$D0FFFF (Mirrored up to $DFFFFF ?).
Data structure
All offset are taken from the sp-s2.bin bios.
| Start | End | Size | Data | Description |
| $D00000 | $D0000F | 15 | $00 | Unused, fill with $00 |
| $D00010 | $D0001F | 15 | "BACKUP RAM OK!Ç" | The routine at $C125C8 will check if this string is present, if not it will test the ram (using the test_ram routine at $C13134) and re-init the backupram |
| $D00020 | $D00021 | 2 | Coin deposit related (rising edge finding ?) | |
| $D00034 | $D00035 | 2 | $00 | "Internal" credit counters for player 1 and player 2 (BCD), used by BIOS only. |
| $D0003A | $D00045 | 12 | Cab settings.
| |
| $D00046 | $D00046 | 1 | SOUND_STOP | No sound at all if non-zero |
| $D00047 | $D00047 | 1 | SLOT NUMBER | Number of detected slots (2 for slot1) |
| $D00048 | $D00059 | ? | ||
| $D0005A | $D0005D | 4 | HHMMSSMM | Current time, hour is mult by 4 (???), MM is the milliseconds. |
| $D0005E | $D00103 | ? | ||
| $D00104 | $D00107 | 4 | YYMMDDdd | Current date |
| $D00108 | $D00109 | ? | ||
| $D0010A | $D0010D | 4 | Detailed game start book address | |
| $D0010E | $D00111 | 4 | Total game start book address | |
| $D00112 | $D00115 | 4 | Detailed cabinet coin book address (sub 0x240 for the start book one) | |
| $D00116 | $D00119 | 4 | Current month cabinet coin book address (sub 0xC for the start book one) | |
| $D0011A | $D00121 | ? | ||
| $D00122 | $D00123 | 2 | $23 | The init_backupram routine write $23 there, purpose unknown. |
| $D00124 | $D00127 | 4 | Slot-1 NGH number and game name ID (see below) | If not present $0000 as NGH and $FFFF as game name ID |
| $D00128 | $D0012B | 4 | Slot-2 NGH number and game name ID (see below) | If not present $0000 as NGH and $FFFF as game name ID.
On a slot1 always unset (slot1 are slot2 with the second one empty) |
| $D0012C | $D0012F | 4 | Slot-3 NGH number and game name ID (see below) | If not present $0000 as NGH and $FFFF as game name ID |
| $D00130 | $D00133 | 4 | Slot-4 NGH number and game name ID (see below) | If not present $0000 as NGH and $FFFF as game name ID |
| $D00134 | $D00137 | 4 | Slot-5 NGH number and game name ID (see below) | If not present $0000 as NGH and $FFFF as game name ID |
| $D00138 | $D0013B | 4 | Slot-6 NGH number and game name ID (see below) | If not present $0000 as NGH and $FFFF as game name ID |
| $D0013C | $D0013F | 4 | Slot-7 NGH number and game name ID (see below) | If not present $0000 as NGH and $FFFF as game name ID |
| $D00140 | $D00143 | 4 | Slot-8 NGH number and game name ID (see below) | If not present $0000 as NGH and $FFFF as game name ID |
| $D00144 | $D00147 | 4 | YYMMDDdd | Slot-1 book creation time YEAR-MONTH-DAY-day number |
| $D00148 | $D0014B | 4 | YYMMDDdd | Slot-2 book creation time YEAR-MONTH-DAY-day number |
| $D0014C | $D0014F | $4 | YYMMDDdd | Slot-3 book creation time YEAR-MONTH-DAY-day number |
| $D00150 | $D00153 | 4 | YYMMDDdd | Slot-4 book creation time YEAR-MONTH-DAY-day number |
| $D00154 | $D00157 | 4 | YYMMDDdd | Slot-5 book creation time YEAR-MONTH-DAY-day number |
| $D00158 | $D0015B | 4 | YYMMDDdd | Slot-6 book creation time YEAR-MONTH-DAY-day number |
| $D0015C | $D0015F | 4 | YYMMDDdd | Slot-7 book creation time YEAR-MONTH-DAY-day number |
| $D00160 | $D00163 | 4 | YYMMDDdd | Slot-8 book creation time YEAR-MONTH-DAY-day number |
| $D001A4 | $D002A7 | 4 | Current month game start book | |
| $D001A8 | $D002AB | 4 | ? | |
| $D002A0 | $D002AF | 15 | Game Name 0 | |
| $D002B0 | $D002BF | 15 | Game Name 1 | |
| $D002C0 | $D002CF | 15 | Game Name 2 | |
| $D002D0 | $D002DF | 15 | Game Name 3 | |
| $D002E0 | $D002EF | 15 | Game Name 4 | |
| $D002F0 | $D002FF | 15 | Game Name 5 | |
| $D00300 | $D0030F | 15 | Game Name 6 | |
| $D00310 | $D0031F | 15 | Game Name 7 | |
| $D00320 | $D0131F | $1000 | Game 1 data | |
| $D01320 | $D0231F | $1000 | Game 2 data | |
| $D02320 | $D0331F | $1000 | Game 3 data | |
| $D03320 | $D0431F | $1000 | Game 4 data | |
| $D04320 | $D0531F | $1000 | Game 5 data | |
| $D05320 | $D0631F | $1000 | Game 6 data | |
| $D06320 | $D0731F | $1000 | Game 7 data | |
| $D07320 | $D0831F | $1000 | Game 8 data |