Table 6-3 Debugger's Command Syntax Command line syntax: j_aa_bb_cc-dd_ee-ff-gg-hh-ii [Floppy] j: Floppy I/O command. aa: Command byte required by Floppy Disk Controller. bb ii: Fifo parameters (number of parameters required depending on the actual command) (Default floppy disk buffer area begins at 10000h) example: j-08 : 08 Denotes a "sense interrupt status" command with no additional parameter required. HARD DISK I/O: This command allows the user to communicate directly to the hard disk controller ship (Western Digital 1010). Furthermore, the user is required to enter the right amount of parameter byte for a particular command operation.
(refer to western Digital 1010 specification for more information) Upon receiving a carriage return, the Monitor passes the command byte as well as all the parameter to the controller. After the command is finished, status bytes will be displayed on the screen in the same format as in the controller specification. Also, the starting address of the disk buffer during read/write command is default to location 04000 (hex). Command line syntax: k-aa-bb-cc-dd-ee-ff [Hard Disk] k: Hard disk I/O command. aa: Command byte for Hard disk controller (WD 1010). bb: Sector/Drive/Head (SDH) byte. cc: Cylinder low byte. dd: Cylinder low byte. ee: Beginning sector number. ff: Sector Count.
(Default hard disk buffer area begins at 04000h) example: k-10-20 : 10 Denotes a "recal" command. 20 Denotes a 512K byte sector size: a drive number 0: and head number 0. 6-9