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Arrow Bingo: Added a new input requested by the code. Added

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more technical notes about the program. [Roberto Fresca]
This commit is contained in:
RobertoFresca 2017-02-01 03:00:18 -03:00
parent 0330b5c6bb
commit d1974dda9e
1 changed files with 8 additions and 4 deletions
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12
src/mame/drivers/avt.cpp
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@ -661,11 +661,15 @@ ADDRESS_MAP_END
02D6: CD B2 02 call $02B2 02D6: CD B2 02 call $02B2
02D9: C9 ret 02D9: C9 ret
0338: DB 02 in a,($02) 0338: DB 02 in a,($02) --> poll IN0
033A: E6 40 and $40 033A: E6 40 and $40 ------> check for IN0-7 if active.
033C: 28 02 jr z,$0340 033C: 28 02 jr z,$0340 --> to continue the program.
033E: AF xor a 033E: AF xor a
033F: C9 ret 033F: C9 ret
....
1ACB: B7 or a
1ACC: 28 03 jr z,$1AD1 --> to continue the program.
1ACE: CD B6 2D call $2DB6 ----> nothing there!!!
poll the port 00h and compare with 0x03 poll the port 00h and compare with 0x03
@ -882,7 +886,7 @@ static INPUT_PORTS_START( avtbingo )
PORT_BIT( 0x08, IP_ACTIVE_LOW, IPT_COIN1 ) PORT_BIT( 0x08, IP_ACTIVE_LOW, IPT_COIN1 )
PORT_BIT( 0x10, IP_ACTIVE_LOW, IPT_POKER_HOLD5 ) PORT_NAME("Column 5 UP") PORT_BIT( 0x10, IP_ACTIVE_LOW, IPT_POKER_HOLD5 ) PORT_NAME("Column 5 UP")
PORT_BIT( 0x20, IP_ACTIVE_LOW, IPT_POKER_HOLD4 ) PORT_NAME("Column 4 UP") PORT_BIT( 0x20, IP_ACTIVE_LOW, IPT_POKER_HOLD4 ) PORT_NAME("Column 4 UP")
PORT_BIT( 0x40, IP_ACTIVE_LOW, IPT_UNUSED ) PORT_BIT( 0x40, IP_ACTIVE_LOW, IPT_OTHER ) PORT_CODE(KEYCODE_7) PORT_NAME("IN0-7") // Used. Masked 0x40. See code at PC=0338.
PORT_BIT( 0x80, IP_ACTIVE_LOW, IPT_UNUSED ) PORT_BIT( 0x80, IP_ACTIVE_LOW, IPT_UNUSED )
INPUT_PORTS_END INPUT_PORTS_END