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Re: AW: Mess Emulator für diverse Schachcomputer ist fertig!
 Zitat von fhub
Hi,
Question for hap:
There's one thing I don't understand with these 2 devices: they have different key codes (ports&bits), although using exactly the same ROM program - how is this possible?
Example:
Port "IN.2" bit 0x02 is "Multi Move" for the ccompanion2, but the same port&bit is "Take Back" for the expchess!?
So if this key with port "IN.2" bit 0x02 is pressed, how can the same program know, whether it should switch to 'multi move' mode (when I'm running ccompanion2) or just 'take back' the last move (when running expchess)??
Looking at your driver I don't see any differentiation between these 2 engines - apart from the layouts and the input ports they use exactly the same machine configuration!?
The code in CC2 :
Code:
ldx #$F75C ; 12 keys table
ldab #$0C ; 12 keys counter
tim #$08,$Port2Data ; test config 12/14 keys <-------------- hardware test
bne LF73E >- ; yes for 12
ldx #$F76A | ; 14 keys table
ldab #$0E | ; 14 keys counter
LF73E: | ;
dex <- ;
decb | ;
bmi LF7A9 | ; end
cmpa $00,x | ; same as table ?
bne LF73E >- ; no, next
ldx #$F76A ; vectors table
abx ; 2 bytes for address
abx ;
ldx $00,x ; loading vector
clra ; a=0
pshx ; in stack for jmp
rts ; indirect by return
XF750: ;
db $40, $43, $44, $45 ; 14 keys | 12 keys
db $80, $81, $82, $83 ; 40 FE30 Pawn | 81 FE30
db $84, $85, $86, $87 ; 41 FE31 knight | 82 FE31
XF75C: ; 42 FE32 bishop | 86 FE32
db $44, $82 ,$80, $45, ; 43 FE33 rook | 87 FE33
db $84, $40, $41, $83, ; 44 FE35 king | 40 FE35
db $86, $81, $42, $43, ; 45 FDF3 color | 45 FDF3
db $46, $85 ; 46 FD44 sound |
XF76A: ; 80 FC93 New G. | 44 FC93
db $FE, $35, $FC, $8A ; 81 FCBD takebk | 85 FCBD
db $FC, $93, $FD, $F3 ; 82 FC8A epos | 43 FC8A
db $FE, $34, $FE, $30 ; 83 FE0B play | 83 FE0B
db $FE, $31, $FE, $0B ; 84 FE34 queen | 80 FE34
db $FD, $3F, $FC, $BD ; 85 FE10 multmv |
db $FE, $32, $FE, $33 ; 86 FD3F level | 84 FD3F
db $FD, $44, $FE, $10 ;
Hacking is possible by adding 2 keys and put the pin 3 of the port 2 at Vcc.
Cordially.
Geändert von Mychess (08.11.2023 um 17:23 Uhr)
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