[SharpMZ] hdl

[Martin Lukasek]

Ten Michaluv emulator Ti nestaci?

M.

-----Original Message-----
From: sharpmz-bounces na mail.ordoz.com [mailto:sharpmz-bounces na mail.ordoz.com] On Behalf Of Radek Suk
Sent: Saturday, May 19, 2018 9:56 AM
To: Počítače SHARP MZ a jejich emulátory <sharpmz na mail.ordoz.com>
Subject: [SharpMZ] hdl

Kluci nemate odkazy na HDL kod (VHDL,Verilog) na soucastky co obsahuje Sharp? Pro zacatek i8253, i8255 a NE555 a pak i Z80 PIO?

zvukovy cip je 76489 je napr. 
https://github.com/mikestir/fpga-bbc/blob/master/sn76489-1.0/sn76489_noise.vhd

Nasel jsem treba:
https://github.com/sorgelig/Vector06_MIST/blob/master/k580vv55.v
https://github.com/sorgelig/Vector06_MIST/blob/master/k580vi53.v

Jinak existuje zajimavy projekt
https://github.com/MiSTer-devel/Main_MiSTer/wiki a tam jsou emulovane ruzne pocitace.

Idealni kdyz by ten kod pro z80 pio dobre emuloval interrupt jak je popsano v:
http://smithsonianchips.si.edu/ice/OCR_ScanPE125/PE125(10379-K).pdf
http://www.blunk-electronic.de//train-z/doc/z80-interrupts_rewritten.pdf

U toho NE555 se mi jedna aby emulace se snazila emulovat nabijeni/vybijeni kondenzatoru u 556-IO3C

Pak se muzeme pokusit udelat emulator MZ-80K, pak prejit na MZ-80A a nasledne na MZ700 a casem mozna i na MZ800.

Radek





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