K8 là một trong những nhà cái trực tuyến uy tín hàng đầu tại Việt Nam, thu hút hàng triệu thành viên tham gia mỗi ngày. Top 20 nhà cái uy tín gồm VSbet, FUN88, 6686, W88, M88, BK8, VSbet, JBO, We88, 188BET, 12Play và E2BET. It finds the highest of memory, restores the clock after a reset while the DOS was energetic, reads the system data sector and units the DOS up from the SYSTEM options, exhibits the banner, asks for the date and time, reads the GAT and runs the AUTO command. When the verify learn fails, the write is repeated as much as SYSTEM possibility AW times. The fastened entry points documented in chapter three of the manual. Register Pair BC is preserved. 4467H (display, handbook 3.33) enters at 4BA6H and 446AH (print, manual 3.34) at 4BBCH. The message at Register Pair HL is shipped through the ROM’s output routine at 001BH as much as and together with a 0DH, or up to however not together with a 03H. Register Pairs HL and DE are preserved.
4063H stores Register Pair DE as 4 hexadecimal digits at Register Pair HL, 4068H shops Register A as two. Register A not zero asks for a confirm learn after the write, and the NZ FLAG asks for the directory mark. The code’s bits 0-2 are the listing sector minus 2, bits 3-four the file in that sector, and bits 5-7 the perform number. Register L x Register A. 4C94H: Register Pair HL x Register A, with the lead to Register A (high byte), Register H and Register L. 4C9DH: Register Pair HL x Register A with the result in Register H (high), Register L and Register C (low), used for file x LRL. The file is read a sector at a time into 4200H, so the FCB’s buffer should be 4200H. Record kind 01H is a load block (length, two handle bytes, information), 02H is the switch deal with (it ends the load), and every other kind up to 1FH is skipped. FDE sectors) of the present drive into 4200H, or at 48FDH for one try. Enter at 491FH to put in writing back the directory sector now in 4200H, or at 4922H with its quantity in Register A. The sector is written with the directory mark and the verify learn.
RST 28H comes right here via 400CH with a function code in Register A. Codes under 20H (perform 0) are sent to the BREAK hook at 4312H. Any other code names a system file by its directory slot (bits 0-4) and a operate in it (bits 5-7). If that file is just not the overlay now in 4D00H-51FFH, its listing entry is read from drive 0, and it’s loaded via the FCB at 43CEH; a system file that cannot be found offers error 2EH (SYSTEM PROGRAM NOT Found), or a HALT if the missing file is SYS4, the error message module. 48E6H comes back right here after copying a directory entry’s extents into the FCB. 4 seven-byte ROUTE entries, then the FCB used to load system information. The present drive’s stepping price is added, the command is issued, and the routine waits till the controller is not busy, reselecting the drive meanwhile so that its motor keeps operating.
Then the date and time are displayed, the GAT of drive 0 is learn and the AUTO command is run. Clears the display, routes the display to NL if option BA is Y, reveals the banner and, depending on choices AY and AZ, asks for the date and time. The time and date are binary values. Bad values give error 27H (Illegal INITIALIZATION Data ON SYSTEM DISKETTE). Register Pair HL points to the typed answer, Register Pair DE to the primary of three clock bytes (saved downward), Register Pair BC to 3 pairs of (lowest worth, variety of values), and Register A holds the separator. 34H and Register Pair HL unchanged. Waits Register B x 256 passes of the ROM’s delay loop at 0060H (plus the passes in Register C), repeated SYSTEM option BJ occasions. With the lower case driver on (SYSTEM possibility BF, or the LCDVR command in SYS3), 4505H turns into JR C,4513H and characters 20H-7FH are put on the display screen by the ROM’s retailer routine, so decrease case letters are usually not changed to upper case. Put into the display’s control block (401EH) at reset when SYSTEM option AJ is Y (4E31H). The ROM’s dispatcher at 03C2H enters a driver with Index Register IX pointing to the control block, Register C holding the character, and the flags of CP 02H on the request kind: the CARRY FLAG set for enter (studying the character at the cursor), clear for output.