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141 lines
4.0 KiB
Plaintext
141 lines
4.0 KiB
Plaintext
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;C02 Module file.h02 Assembly Lamnguage
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;Template Code
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;Sample Device Numbers
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CASST1 EQU 0
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MODEM1 EQU 2
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PRNTR1 EQU 3
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PRNTR2 EQU 4
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DRIVE1 EQU 5
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DRIVE2 EQU 6
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DRIVE3 EQU 7
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DRIVE4 EQU 8
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;Disk Numbers (Within Drive)
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DISK0 EQU $00
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DISK1 EQU $40
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;File Open Modes
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MWRITE EQU $80
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MREAD EQU $00
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;fflush(chan) - Flush Write Buffer to File
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;Args: A = Mode + Drive ID
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;Returns: A = File Channel (0=File Not Opened)
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FFLUSH: ;Return Success (fall through)
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;fopen(args, &name) - Open File
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;Args: A = Mode + Drive ID
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; Y,X = Pointer to File Name
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;Returns: A = File Channel (0=File Not Opened)
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FOPEN: LDA $00 ;Return File Not Opened (fall through)
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;fclose(chan) - Close File
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;Args: A = Channel Number
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FCLOSE: RTS ;No Action
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;fgetc(chan) - Read Character from File
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;Args: A = Channel Number
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;Returns: A = Character
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; Y = Error Code
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; $00 - Success
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; $FF - Not Implemented
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FGETC: ;Return Error - Not Implemented (fall through)
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;fgets(chan, &s) - Read String from File
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;Args: A = Channel Number
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; Y,X = Pointer to String Array
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;Returns: A = Number of Bytes Read
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; Y = Error Code
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; $00 - Success
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; $FF - Not Implemented
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FGETS: ;Return Error - Not Implemented (fall through)
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;fread(chan, count) - Read Bytes from File
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;Args: A = Channel Number
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; Y = Number of Bytes to Read
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;Uses: DSTLO,DSTHI - Pointer Destination Array
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;Returns: A = Number of Bytes Read
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; Y = Error Code
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; $00 - Success
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; $FF - Not Implemented
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FREAD: ;Return Error - Not Implemented (fall through)
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;fwrite(chan, count) - Write Bytes to File
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;Args: A = Channel Number
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; Y = Number of Bytes to Write
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;Uses: DSTLO,DSTHI - Pointer to Source Array
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;Returns: A = Number of Bytes Written
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; Y = Error Code
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; $00 - Success
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; $FF - Not Implemented
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FWRITE: LDA $00 ;Return 0 Bytes Read/Written
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LDY $FF ;and Error - Not Implemented
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RTS
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;feof(chan) - Check for End of File
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;Args: A = Channel Number
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;Returns: A = Platform Specific EOF Value
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; $00 - Not End of File
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; $FF - Not Implemented
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FEOF: ;Return Error - Not Implemented (fall through)
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;ferror(chan) - Check for Error
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;Args: A = Channel Number
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;Returns: A = Error Code
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; $00 - Success
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; $FF - Not Implemented
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FERROR: ;Return Error - Not Implemented (fall through)
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;fputc(chan, char) - Write Character to File
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;Args: A = Channel Number
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; Y = Character to Write
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;Returns: A = Error Code
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; $00 - Success
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; $FF - Not Implemented
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FPUTC: ;Return Error - Not Implemented (fall through)
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;fputs(chan, &s) - Write String from File
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;Args: A = Channel Number
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; Y,X = Pointer to String Array
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;Returns: A = Error Code
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; $00 - Success
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; $FF - Not Implemented
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FPUTS: ;Return Error - Not Implemented (fall through)
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;fload(name) - Load File into Memory
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;Args: A = Option + DriveID
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; Y,X = Pointer to File Name
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;Uses: SRCLO,SRCHI = Start Address
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; DSTLO,DSTHI = End Address
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;Returns: A = Error Code
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; $00 - Success
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; $FF - Not Implemented
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; X,Y = Load Address
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FLOAD: ;Return Error - Not Implemented (fall through)
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;fsave(name) - Save File from Memory
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;Args: A = Option + DriveID
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;Args: Y,X = Pointer to File Name
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;Uses: SRCLO,SRCHI = Start Address
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; DSTLO,DSTHI = End Address
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;Returns: A = Error Code
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; $00 - Success
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; $FF - Not Implemented
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FSAVE: LDA $FF ;Return Error - Not Implemented
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RTS
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;Internal routines are all prefixed with FS
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;fsetup() - Set Parameters for File Open
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;Platform Specific
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;fsinit() - Initialize Control Block
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;For platforms that use File or Parameter Control Blocks
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;fname(&name) - Set File Name
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;If a seperate OS Call to set the File Name
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;or a terminator other than NUL is required
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