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MAC65 I/O library
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.TITLE "IOMAC.LIB -- FTe system I/O macros"
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.PAGE " Support Macros"
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.IF .NOT .DEF IOCB
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.ERROR "You must include SYSEQU.M65 ahead of this!!"
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.ENDIF
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;
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; These macros are called by the actual I/O macros
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; to perform the rudimentary register load functions.
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;
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;
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; MACRO: @CH
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;
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; Loads IOCB number (parameter 1) into X register.
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;
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; If parameter value is 0 to 7, immediate channel number
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; is assumed.
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;
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; If parameter value is > 7 then a memory location
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; is assumed to contain the channel number.
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;
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.MACRO @CH
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.IF %1>7
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LDA %1
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ASL A
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ASL A
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ASL A
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ASL A
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TAX
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.ELSE
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LDX #%1*16
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.ENDIF
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.ENDM
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;
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;
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; MACRO: @CV
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;
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; Loads Constant or Value into accumultor (A-register)
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;
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; If value of parameter 1 is 0-255, @CV
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; assumes it's an (immediate) constant.
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;
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; Otherwise the value is assumed to
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; be a memory location (non-zero page).
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;
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;
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;
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.MACRO @CV
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.IF %1<256
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LDA #%1
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.ELSE
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LDA %1
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.ENDIF
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.ENDM
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;
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;
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;
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;
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; MACRO: @FL
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;
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; @FL is used to establish a filespec (file name)
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;
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; If a literal string is passed, @FL will
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; generate the string in line, jump
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; around it, and place its address
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; in the IOCB pointed to by the X-register.
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;
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; If a non-zero page label is passed
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; the MACRO assumes it to be the label
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; of a valid filespec and uses it instead.
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;
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;
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;
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.MACRO @FL
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.IF %1<256
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JMP *+%1+4
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@F .BYTE %$1,0
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LDA # <@F
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STA ICBADR,X
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LDA # >@F
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STA ICBADR+1,X
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.ELSE
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LDA # <%1
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STA ICBADR,X
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LDA # >%1
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STA ICBADR+1,X
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.ENDIF
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.ENDM
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.PAGE " XIO macro"
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;
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; MACRO: XIO
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;
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; FORM: XIO cmd,ch[,aux1,aux2][,filespec]
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;
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; ch is given as in the @CH macro
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; cmd, aux1, aux2 are given as in the @CV macro
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; filespec is given as in the @FL macro
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;
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; performs familiar XIO operations with/for OS/A+
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;
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; If aux1 is given, aux2 must also be given
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; If aux1 and aux2 are omitted, they are set to zero
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; If the filespec is omitted, "S:" is assumed
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;
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.MACRO XIO
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.IF %0<2 .OR %0>5
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.ERROR "XIO: wrong number of arguments"
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.ELSE
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@CH %2
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@CV %1
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STA ICCOM,X ; COMMAND
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.IF %0>=4
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@CV %3
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STA ICAUX1,X
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@CV %4
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STA ICAUX2,X
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.ELSE
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LDA #0
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STA ICAUX1,X
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STA ICAUX2,X
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.ENDIF
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.IF %0=2 .OR %0=4
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@FL "S:"
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.ELSE
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@@IO .= %0
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@FL %$(@@IO)
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.ENDIF
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JSR CIO
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.ENDIF
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.ENDM
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.PAGE " OPEN macro"
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;
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; MACRO: OPEN
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;
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; FORM: OPEN ch,aux1,aux2,filespec
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;
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; ch is given as in the @CH macro
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; aux1 and aux2 are given as in the @CV macro
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; filespec is given as in the @FL macro
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;
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; will attempt to open the given file name on
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; the given channel, using the open "modes"
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; specified by aux1 and aux2
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;
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.MACRO OPEN
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.IF %0<>4
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.ERROR "OPEN: wrong number of arguments"
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.ELSE
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.IF %4<256
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XIO COPN,%1,%2,%3,%$4
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.ELSE
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XIO COPN,%1,%2,%3,%4
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.ENDIF
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.ENDIF
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.ENDM
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.PAGE " BGET and BPUT macros"
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;
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; MACROS: BGET and BPUT
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;
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; FORM: BGET ch,buf,len
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; BPUT ch,buf,len
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;
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; ch is given as in the @CH macro
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; len is ALWAYS assumed to be an immediate
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; and actual value...never a memory address
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; buf must be the address of an appropriate
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; buffer in memory
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;
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; puts or gets length bytes to/from the
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; specified buffer, uses binary read/write
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;
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;
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; first: a common macro
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;
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.MACRO @GP
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@CH %1
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LDA #%4
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STA ICCOM,X
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LDA # <%2
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STA ICBADR,X
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LDA # >%2
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STA ICBADR+1,X
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LDA # <%3
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STA ICBLEN,X
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LDA # >%3
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STA ICBLEN+1,X
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JSR CIO
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.ENDM
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;
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.MACRO BGET
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.IF %0<>3
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.ERROR "BGET: wrong number of parameters"
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.ELSE
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@GP %1,%2,%3,CGBINR
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.ENDIF
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.ENDM
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;
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.MACRO BPUT
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.IF %0<>3
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.ERROR "BPUT: wrong number of parameters"
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.ELSE
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@GP %1,%2,%3,CPBINR
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.ENDIF
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.ENDM
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;
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.PAGE " PRINT macro"
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;
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; MACRO: PRINT
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;
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; FORM: PRINT ch[,buffer[,length]]
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;
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; ch is as given in @CH macro
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; if no buffer, prints just a RETURN
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; if no length given, 255 assumed
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;
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; used to print text. To print text without RETURN,
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; length must be given. See OS/A+ manual
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;
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; EXCEPTION: second parameter may be a literal
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; string (e.g., PRINT 0,"test"), in which
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; case the length (if given) is ignored.
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;
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.MACRO PRINT
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.IF %0<1 .OR %0>3
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.ERROR "PRINT: wrong number of parameters"
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.ELSE
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.IF %0>1
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.IF %2<128
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JMP *+4+%2
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@IO .BYTE %$2,$9B
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@GP %1,@IO,%2+1,CPTXTR
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.ELSE
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.IF %0=2
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@GP %1,%2,255,CPTXTR
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.ELSE
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@GP %1,%2,%3,CPTXTR
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.ENDIF
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.ENDIF
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.ELSE
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JMP *+4
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@IO .BYTE $9B
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@GP %1,@IO,1,CPTXTR
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.ENDIF
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.ENDIF
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.ENDM
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;
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.PAGE " INPUT macro"
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;
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; MACRO: INPUT
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;
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; FORM: INPUT ch,buf,len
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;
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; ch is given as in the @CH macro
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; buf MUST be a proper buffer address
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; len may be omitted, in which case 255 is assumed
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;
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; gets a line of text input to the given
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; buffer, maximum of length bytes
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;
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.MACRO INPUT
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.IF %0<2 .OR %0>3
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.ERROR "INPUT: wrong number of parameters"
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.ELSE
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.IF %0=2
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@GP %1,%2,255,CGTXTR
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.ELSE
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@GP %1,%2,%3,CGTXTR
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.ENDIF
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.ENDIF
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.ENDM
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.PAGE " CLOSE macro"
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;
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; MACRO: CLOSE
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;
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; FORM: CLOSE ch
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;
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; ch is given as in the @CH macro
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;
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; closes channel ch
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;
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.MACRO CLOSE
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.IF %0<>1
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.ERROR "CLOSE: wrong number of parameters"
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.ELSE
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@CH %1
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LDA #CCLOSE
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STA ICCOM,X
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JSR CIO
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.ENDIF
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.ENDM
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;
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;;;;;;;;;;; END OF IOMAC.LIB ;;;;;;;;;;;;
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;
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@@ -0,0 +1,94 @@
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.PAGE "FTe SYSTEM EQUATES FOR ATARI"
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;
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; FILE = #DN:SYSEQU.ASM
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;
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;
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; I/O CONTROL BLOCK EQUATES
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;
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SAVEPC = * ; SAVE CURRENT ORG
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;
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*= $0340 ;START OF SYSTEM IOCBS
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IOCB
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;
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ICHID *= *+1 ;DEVICE HANDLER IS (SET BY OS)
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ICDNO *= *+1 ;DEVICE NUMBER (SET BY OS)
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ICCOM *= *+1 ;I/O COMMAND
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ICSTA *= *+1 ;I/O STATUS
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ICBADR *= *+2 ;BUFFER ADDRESS
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ICPUT *= *+2 ;DH PUT ROUTINE (ADR-1)
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ICBLEN *= *+2 ;BUFFER LENGTH
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ICAUX1 *= *+1 ;AUX 1
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ICAUX2 *= *+1 ;AUX 2
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ICAUX3 *= *+1 ;AUX 3
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ICAUX4 *= *+1 ;AUX 4
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ICAUX5 *= *+1 ;AUX 5
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ICAUX6 *= *+1 ;AUX 6
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;
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IOCBLEN = *-IOCB ;LENGTH OF ONE IOCB
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;
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; IOCB COMMAND VALUE EQUATES
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;
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COPN = 3 ;OPEN
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CGBINR = 7 ;GET BINARY RECORD
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CGTXTR = 5 ;GET TEXT RECORD
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CPBINR = 11 ;PUT BINARY RECORD
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CPTXTR = 9 ;PUT TEXT RECORD
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CCLOSE = 12 ;CLOSE
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CSTAT = 13 ;GET STATUS
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;
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; DEVICE DEPENDENT COMMAND EQUATES FOR FILE MANAGER
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;
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CREN = 32 ;RENAME
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CERA = 33 ;ERASE
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CPRO = 35 ;PROTECT
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CUNP = 36 ;UNPROTECT
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CPOINT = 37 ;POINT
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CNOTE = 38 ;NOTE
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;
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; AUX1 VALUES REQD FOR OPEN
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;
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OPIN = 4 ;OPEN INPUT
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OPOUT = 8 ;OPEN OUTPUT
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OPUPD = 12 ;OPEN UPDATE
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OPAPND = 9 ;OPEN APPEND
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OPDIR = 6 ;OPEN DIRECTORY
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;
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.PAGE
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;
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; EXECUTE FLAG DEFINES
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;
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EXCYES = $80 ; EXECUTE IN PROGRESS
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EXCSCR = $40 ; ECHO EXCUTE INPUT TO SCREEN
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EXCNEW = $10 ; EXECUTE START UP MODE
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EXCSUP = $20 ; COLD START EXEC FLAG
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;
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; MISC ADDRESS EQUATES
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;
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CPALOC = $0A ; POINTER TO CP/A
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WARMST = $08 ; WAR, START (0=COLD)
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MEMLO = $02E7 ; AVAIL MEM (LOW) PTR
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MEMTOP = $02E5 ; AVAIL MEM (HIGH) PTR
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APPMHI = $0E ; UPPER LIMIT OF APPLICATION MEMORY
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INITADR = $02E2 ; ATARI LOAD/INIT ADR
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GOADR = $02E0 ; ATARI LOAD/GO ADR
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CARTLOC = $BFFA ; CARTRIDGE RUN LOCATION
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CIO = $E456 ;CIO ENTRY ADR
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EOL = $9B ; END OF LINE CHAR
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;
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; CP/A FUNCTION AND VALUE DISPLACEMSNT
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; (INDIRECT THROUGH CPALOC)
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; IE. (CPALOC),Y
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;
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CPGNFN = 3 ; GET NEXT FILE NAME
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CPDFDV = $07 ; DEFAULT DRIVE (3 BYTES)
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CPBUFP = $0A ; CMD BUFF NEXT CHAR POINTR (1 BYTE)
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CPEXFL = $0B ; EXECUTE FLAG
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CPEXFN = $0C ; EXECUTE FILE NAME (16 BYTES)
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CPEXNP = $1C ; EXECUTE NOTE/POINT VALUES
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CPFNAM = $21 ; FILENAME BUFFER
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RUNLOC = $3D ; CP/A LOAD/RUN ADR
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CPCMDB = $3F ; COMMAND BUFFER (60 BYTES)
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CPCMDGO = $F3
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;
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*= SAVEPC ; RESTORE PC
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;
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