Started by RobIvy64, January 04, 2014, 01:20:41 PM
Quote3.5 N64 CPUN64 CPU is part of the MIPS R4000 family of processors. The N64 CPU consists of the following components:an execution unit with a 64-bit register file for integer and floating-point operationsa 16 KB instruction cachean 8 KB writeback data cachea 32-entry TLB (Translation Lookaside Buffer) for virtual address to physical address calculationThe 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, R4300 Specifications, and Chapter 6, "N64 Operating System Overview".
Quote from: CybertronicI was also under the impression that the N64 OS was indeed on the CPU and it was indeed a system on a chip.
QuoteYou didn't have to be so blunt about it.
QuoteGidday,Long time tinkerer, first time poster here. I've been working with replacing the RAM on the N64 board with something that has a lower latency as that appears to be the bottleneck in many of the higher aspect games. While the pinout seems simple enough it's the serial arrangement of the older board that are hampering my efforts. I noticed you swapped the ram out on yours for the NEC A60s, do you think that A50s would remove the latency issue while having the same speed as the original RDRAM chips? And do you have any suggestions on the ram replacement front? I'm also unsure as to how accurate the pinout information I've got is - might search this forum a bit deeper for that now that I've found it.I hark from the GE/PD mod front, and did also wonder if the ROM header could be modified to offset the increase in overclock speed (kind of backwards to the suggestion earlier in the thread) so it'd remain at playspeed through the overclock - just a thought