From: notaz <notasas@gmail.com>
Date: Fri, 6 Oct 2017 21:08:05 +0000 (+0300)
Subject: some irq hacks
X-Git-Tag: v1.92~4
X-Git-Url: https://notaz.gp2x.de/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=22814963ccbcba3a08ca49656fd80dc40de64710;hp=22814963ccbcba3a08ca49656fd80dc40de64710;p=picodrive.git

some irq hacks

notes to self (derived from Nemesis):

H32: 0x10A .. 0x127 0x1D2 .. 0x1FF 0x000 0x001
pclk       30             46          1 |0x109
mclk                 770                | 2650   = 3420
68kclk              110                   378.5 ~= 488.5

H40: 0x14A .. 0x16C 0x1C9 .. 0x1FF 0x000 0x001
pclk       35             55          1
mclk     35*8       4*8+314+10+19*8     |0x149*8
                  788                   | 2632   = 3420
68kclk           112.5                    376   ~= 488.5
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