N64® Disk Drive Functions in Alphabetical Order Nintendo® Confidential

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Leo | Overview of the N64® Disk Drive Functions
LeoBootGame | Executes a reboot
LeoByteToLBA | Converts from byte to LBA
LeoCACreateLeoManager | Creates and starts the Leo Manager device driver system threads for America-based Game Paks that also use disks in the N64® Disk Drive.
LeoCJCreateLeoManager | Creates and starts the Leo Manager device driver system threads for Japan-based Game Paks that also use disks in the N64® Disk Drive.
LeoClearQueue | Clears the Leo Manager’s command queue
LeoCreateLeoManager | Creates and starts the Leo Manager device driver system threads for games that run exclusively from disks in the N64® Disk Drive; that is, they are not used in combination with a Game Pak.
LeoDriveExist | Checks whether an N64 Disk Drive is connected
LeoGetAAdr | Gets the storage offset address (offset from the beginning of DDROM) for a specified ASCII character by linking to all of the tables related to ASCII characters
LeoGetAAdr2 | Gets the storage offset address (offset from the beginning of DDROM) for a specified ASCII character from the 32 bits of data compressed by the asccode tool
LeoGetKAdr | Gets the storage offset address (offset from the beginning of DDROM) for a specified Kanji character.
LeoInquiry | Inquires as to the version numbers of hardware and software for the N64® Disk Drive
LeoLBAToByte | Converts from LBA to byte
LeoModeSelect | Has been modified into an asynchronous function and renamed to LeoModeSelectAsync
LeoModeSelectAsync | Alters the N64® Disk Drive mode switching time; that is it provides a way to alter the wait-time specified for changes between active, standby, and sleep modes to meet the needs of the game.
LeoReadCapacity | Calculates the N64® Disk Drive disk available region
LeoReadDiskID | Acquires the ID number written in the system region of the N64® Disk Drive disk.
LeoReadRTC | Reads the built-in real-time clock
LeoSetRTC | Sets the built-in real-time clock
LeoReadWrite | Reads and writes between RDRAM and the N64® Disk Drive
leoReset | Has been renamed to LeoReset
LeoReset | Inhibits the issuing of new commands and clears the command queue.
LeoResetClear | Cancels the N64® Disk Drive reset state
LeoRezero | Recalibrates the drive by initializing several set values in the internal resistor and moving the head to LBA0
LeoSeek | Moves the head of N64® Disk Drive to a specified position
LeoSpdlMotor | Controls the motor and the head position in the drive
LeoTestUnitReady | Examines whether or not the disk is inserted, the head is retracted, and the motor is on

Warning: all information in this document is confidential and covered by a non-disclosure agreement. You are responsible for keeping this information confidential and protected. Nintendo will vigorously enforce this responsibility. Copyright © 1998
Nintendo of America Inc.
All rights reserved.
Last updated March 1998