tag

#rsp

2 posts

RetrogamingDeep Dive October 4, 2026 6 min read

Nintendo 64 RSP Vector Arithmetic: Fixed Point, Accumulators, and Saturation

Understand Nintendo 64 RSP vector multiply, fixed-point rounding, the 48-bit accumulator, saturation, and emulator tests that expose hidden-state bugs.

#nintendo-64#rsp#vector-unit

RetrogamingDeep Dive October 3, 2026 8 min read

Nintendo 64 RDP: From Microcode Display Lists to Filtered Pixels

Follow Nintendo 64 graphics from RSP microcode and RDP command streams through TMEM, rasterization, blending, framebuffer writes, and VI scanout.

#nintendo-64#rdp#rsp