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101 lines
1.3 KiB
ArmAsm
101 lines
1.3 KiB
ArmAsm
*
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* Alzan
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*
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* (c) 1981, The pocket ZX81 book
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* (c) 2023, Brutal Deluxe Software (Apple II)
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*
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mx %11
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org $2000
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lst off
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*-----------------------------------
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* SOFTSWITCHES AND FRIENDS
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*-----------------------------------
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leJEU = $4000
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ptrPREFIX = $280
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proBUFFER = $b800
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PRODOS = $bf00
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*-----------------------------------
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* LOAD THE GAME
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*-----------------------------------
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jsr PRODOS ; get the prefix
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dfb $c7
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da proGETPFX
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jsr PRODOS ; set it
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dfb $c6
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da proGETPFX
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jsr PRODOS
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dfb $c8
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da proOPEN
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bcs quitME
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lda proOPEN+5 ; zou, on prend l'ID
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sta proGETEOF+1
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sta proREAD+1
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sta proCLOSE+1
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jsr PRODOS ; longueur du fichier
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dfb $d1
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da proGETEOF
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bcs quitME
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lda proGETEOF+2
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sta proREAD+4
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lda proGETEOF+3
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sta proREAD+5
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jsr PRODOS ; lecture du fichier
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dfb $ca
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da proREAD
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bcs quitME
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jsr PRODOS ; fermeture du fichier
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dfb $cc
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da proCLOSE
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bcs quitME
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jmp leJEU
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quitME jsr PRODOS ; exit
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dfb $65
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da proQUIT
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brk $bd ; on ne se refait pas ;-)
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*--- Data
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proQUIT dfb $4
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ds 1
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ds 2
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ds 1
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ds 2
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proGETPFX dfb $1
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da ptrPREFIX
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proOPEN dfb $3
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da pLEJEU ; pathname (par dŽfaut, le moteur)
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da proBUFFER ; io_buffer
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ds 1 ; ref_num
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proREAD dfb $4
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ds 1 ; ref_num
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da leJEU ; data_buffer
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ds 2 ; request_count
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ds 2 ; transfer_count
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proCLOSE dfb $1
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ds 1 ; ref_num
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proGETEOF dfb $2
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ds 1 ; ref_num
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ds 3 ; eof
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pLEJEU str 'Alzan'
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