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#turbografx-16

3 posts

RetrogamingHistory October 5, 2026 5 min read

NEC's PC Engine Family: HuCards, CD-ROM, Regional Variants, and PC-FX

Trace the NEC and Hudson PC Engine platform through its cartridge, CD-ROM, and regional branches, while separating documented facts from thinner corporate records.

#nec#pc-engine#turbografx-16

RetrogamingDeep Dive October 4, 2026 8 min read

PC Engine HuC6280 Timer IRQ: Reload Semantics, Prescaling, and Acknowledgement

Reproduce the HuC6280's seven-bit interval timer, oscillator prescaler, reload edge, interrupt request flag, and counter-read caveat in PC Engine software.

#pc-engine#turbografx-16#huc6280

RetrogamingDeep Dive October 3, 2026 7 min read

PC Engine VDC SATB DMA: Sprite Tables, VBlank Transfers, and Timing

Understand how the PC Engine HuC6270 stages sprite attributes in VRAM, copies them to internal SATB, and reports DMA completion to software.

#pc-engine#turbografx-16#huc6270