;************************************************************************ ;* Super Famicom Disk Operation System include file. * ;* [ Aug.26, 1991 ] * ;************************************************************************ DOS_variable equ 001E00H ;=============== System works =========================================== NMI_switch equ DOS_variable+000H ; 1 byte : NMI switch DOS_switch equ DOS_variable+001H ; 1 byte : Driver active switch IRQ_status equ DOS_variable+002H ; 1 byte : IRQ status IRQ_address equ DOS_variable+004H ; 2 bytes : IRQ routine address NMI_address equ DOS_variable+006H ; 2 bytes : NMI routine address keyboard_type equ DOS_variable+008H ; 1 byte ;=============== Temporary works ======================================== work0 equ DOS_variable+010H ; 2 bytes : Temporary work 0 work1 equ DOS_variable+012H ; 2 bytes : Temporary work 1 work2 equ DOS_variable+014H ; 2 bytes : Temporary work 2 work3 equ DOS_variable+016H ; 2 bytes : Temporary work 3 ;=============== File I/O work ========================================== current_drive equ DOS_variable+030H ; 1 byte : Current directory current_cluster equ DOS_variable+031H ; 2 bytes : Current cruster number void_cluster equ DOS_variable+033H ; 2 bytes : Void culuster number file_open_mode equ DOS_variable+035H ; 1 byte : secbuf_count equ DOS_variable+036H ; 2 bytes : logical_head equ DOS_variable+038H ; 4 bytes : ;------------------------------------------------------------------------ current_dir_sec equ DOS_variable+040H ; 1 byte : Search directory current sector current_dir_idx equ DOS_variable+041H ; 2 bytes : Search directory current index notused_dir_sec equ DOS_variable+043H ; 1 byte : Not used directory sector notused_dir_idx equ DOS_variable+044H ; 2 bytes : Not used directory index ;=============== Disk information works ================================= FloppyDisk_Info equ DOS_variable+050H sectors_cruster equ DOS_variable+050H ; 1 byte : sectors / cruster sectors_track equ DOS_variable+051H ; 1 byte : sectors / track dir_top_sector equ DOS_variable+052H ; 1 byte : top sector of Directory dir_nsectors equ DOS_variable+053H ; 1 byte : number of Directory sectors FAT_nsectors equ DOS_variable+054H ; 1 byte : number of FAT sectors cls_top_sector equ DOS_variable+055H ; 2 byte : top sector of Cruster nclusters equ DOS_variable+057H ; 2 bytes : number of Crusters sector_length equ DOS_variable+059H ; 2 bytes : size of Sector ( byte ) directory_size equ DOS_variable+05BH ; 2 byte : size of Directory ( byte ) FAT_code equ DOS_variable+05DH ; 1 byte : FAT ID code ;reserved equ DOS_variable+05EH ; 2 bytes : Reserved ;=============== FDC driver's works ===================================== Disk_control equ DOS_variable+060H ; 8 bytes : Disk control parameter buffer FDC_result equ DOS_variable+068H ; 7 bytes : FDC result buffer FDC_device_mode equ DOS_variable+06FH ; 1 byte : FDC device mode FDC_command equ DOS_variable+070H ; 9 bytes : FDC command buffer FDC_parameter equ DOS_variable+076H ; 10 bytes : FDC parameter buffer FDC_EOT equ DOS_variable+076H ; 1 byte : FDC Last sector number FDC_GSL equ DOS_variable+077H ; 1 byte : FDC Gap skip length FDC_DTL equ DOS_variable+078H ; 1 byte : FDC Data length FDC_TRK equ DOS_variable+079H ; 1 byte : FDC Number of tracks FDC_LEN equ DOS_variable+07AH ; 1 byte : FDC Record length ( *256 bytes ) FDC_SC equ DOS_variable+07BH ; 1 byte : FDC Number of Sectors on 1 track FDC_N equ DOS_variable+07CH ; 1 byte : FDC Record length ( code ) FDC_GPL equ DOS_variable+07DH ; 1 byte : FDC Gap length FDC_SRT_HUT equ DOS_variable+07EH ; 1 byte : FDC SRT & HUT FDC_HLT_ND equ DOS_variable+07FH ; 1 byte : FDC HLT & Non-DMA ;=============== Define SCC driver's works ============================== RS232C_baurate equ DOS_variable+080H ; 1 byte : RS232C baurate RS232C_status equ DOS_variable+081H ; 1 byte : RS232C status ;------------------------------------------------------------------------ serial_errsta equ DOS_variable+082H ; 1 byte : RS232C receive error status serial_datcnt equ DOS_variable+083H ; 1 byte : RS232C buffer Data counter serial_putptr equ DOS_variable+084H ; 1 byte : RS232C buffer Data put pointer serial_getptr equ DOS_variable+085H ; 1 byte : RS232C buffer Data get pointer ;------------------------------------------------------------------------ keybuf_datcnt equ DOS_variable+086H ; 1 byte : Keyboard buffer Data counter keybuf_putptr equ DOS_variable+087H ; 1 byte : Keyboard buffer Data put pointer keybuf_getptr equ DOS_variable+088H ; 1 byte : Keyboard buffer Data get pointer ;------------------------------------------------------------------------ capital_lock equ DOS_variable+089H ; 1 byte : Keyboard capital lock flag shift_flags equ DOS_variable+08AH ; 1 byte : Keyboard shift flags ;=============== Define CON driver's works ============================== cursor_posx equ DOS_variable+090H ; 1 byte : Cursor position x cursor_posy equ DOS_variable+091H ; 1 byte : Cursor position y cursor_addr equ DOS_variable+092H ; 2 bytes : Cursor address cursor_point equ DOS_variable+094H ; 2 bytes : Cursor display address cursor_flags equ DOS_variable+096H ; 1 byte : Cursor display flags space_character equ DOS_variable+097H ; 1 byte : Space character character_color equ DOS_variable+098H ; 1 byte : Character color escape_command equ DOS_variable+099H ; 1 byte : Escape sequence status escape_counter equ DOS_variable+09AH ; 1 byte : Escape sequence counter escape_buffer equ DOS_variable+09BH ; 3 bytes ;=============== System buffers ========================================= directory_entry equ DOS_variable+0C0H ; 32 bytes : Directory entry search_filename equ DOS_variable+0E0H ; 32 bytes : Search file name access_filename equ DOS_variable+0E0H ; 16 bytes : Access file name rename_filename equ DOS_variable+0F0H ; 16 bytes : Rename file name data_address equ DOS_variable+0F0H ; 4 bytes : data_length equ DOS_variable+0F4H ; 4 bytes : access_size equ DOS_variable+0F8H ; 4 bytes : ;------------------------------------------------------------------------ Keyboard_buffer equ DOS_variable+0A0H ; 32 bytes : Keyboard receive buffer Line_buffer equ DOS_variable+0C0H ; 64 bytes : Line buffer ( temporary buffer ) RS232C_buffer equ DOS_variable+100H ; 256 bytes : RS232C receive buffer ;------------------------------------------------------------------------ Disk_FAT equ 7E2000H ; 2048 bytes : Floppy disk File Allocation Table Disk_Directory equ 7E2800H ; 1024 bytes : Floppy disk Directory buffer Disk_Sector equ 7E2C00H ; 1024 bytes : Floppy disk Sector read/write buffer Text_VRAM equ 7E3000H ; 2048 bytes : Text Video RAM emulation buffer ;=============== Define Device control I/O ports ====================== SCC_chanB_ctrl equ 005F00H ; SCC channel B control port SCC_chanB_data equ 005F01H ; SCC channel B data port SCC_chanA_ctrl equ 005F02H ; SCC channel A control port SCC_chanA_data equ 005F03H ; SCC channel A data port ;------------------------------------------------------------------------ PPI_port_A equ 005F10H ; PPI parallel port A PPI_port_B equ 005F11H ; PPI parallel port B PPI_port_C equ 005F12H ; PPI parallel port C PPI_comm_reg equ 005F13H ; PPI command register ;------------------------------------------------------------------------ FDC_Stat_reg equ 005F20H ; FDC Status register FDC_Data_reg equ 005F21H ; FDC Data register FDC_term_cnt equ 005F30H ; FDC TC ( Terminal Count ) ;_______________ end of include file __________________________________