tag

#memory-mapping

2 posts

RetrogamingDeep Dive October 13, 2026 6 min read

Sega 32X SH-2 Bus Ownership: ROM Arbitration, Framebuffer Roles, and Display Composition

Trace how the 32X shares cartridge access, assigns framebuffer roles, and combines its output with Mega Drive video without guessing at ownership.

#sega-32x#sh-2#memory-mapping

RetrogamingDeep Dive October 12, 2026 8 min read

Map Nintendo DS VRAM banks A-I to 2D, 3D, LCD, and ARM7 consumers without confusing physical capacity, virtual windows, and graphics offsets.

#nintendo-ds#vram#graphics