N64 CPU

The R4300 CPU is part of the MIPS R4000 family of processors. The R4300 consists of an execution unit with a 64-bit register file for integer and floating-point operations, a 16 KB instruction cache, an 8 KB writeback data cache, and a 32-entry TLB for virtual-to-physical address calculation. The Nintendo 64 game runs in kernel mode with 32-bit addressing. 64-bit integer operations are available in this mode. However, the 32-bit C calling convention is used to maximize performance.

For more information on the R4300 and the operating system control of the CPU see the MIPS Microprocessor R4000 User�s Manual, and Section 6, �Operating System Overview�.

Copyright © 1999 Nintendo of America Inc. All Rights Reserved Nintendo and N64 are registered trademarks of Nintendo Last Updated January, 1999