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#pc98

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FC-1307 Rev1.5のファームウェアをPC-98/EPSON互換機で使用できるようにするパッチ2025/04/16版。
✅ IOP0-3の状態を無視するパッチ。パターンカット不要
✅ CHS容量リミットを4351MB(65535x8x17セクタ)に
はそのままに
✅ Native/Current両方のシリンダ値を正しく計算し65535で頭打ちするように修正
✅ 初期のEPSONノート機で2GBを超えるとハングアップしてしまう問題を回避(H=4が指定されたときにNativeパラメータが変動して2175MBまで使用可)
改造の経緯は
こちらを参照
#PC-98 #PC98 #FC1307A

Original:
FC-1307 2015_10_16-BANK CF_V1.5B17.bin 65,536byte Download
CRC32=
2F99F86C

diff --git a/FC-1307_1.5_.bin b/FC-1307_1.5_.bin
index 7e3b8536b7735757a52cbd40ec9b17df5cae8fb2..d4da4a477dffa8c1467c98efdc64cc5c7de564d1 100755
GIT binary patch
delta 330
zcmZo@U}Ikjkzw-%<_+q691IK$4oreT5(Fl1)E1e%NV|@Up@hMKp@YGM!C~@2
zy^76?bP|PFjZ94p%_bY#ODQ-xI(vr(D1;g6nJNGQgRgT*YPLdvv#zCufq_D>%Va0}
zJxpQ$HaScZX62};Efd^4Jvd#5iRt;KhOaF36{RKrON-k}ix?Dq9YU%IYjZSk6--%o!0
z{3WEDvxk9oF9TBpOWpta{}UXT-hWv94z6Z(EmTp(qGvGm{aR47ku`$+KEWXeta&j|
i@rT7vJ}iD(yLnz~f)$fO%jSc6_5zzP=o!F?M1BA~nT7xW

delta 257
zcmZo@U}Ikj@!#eP%p27C1Q-|?9GL8ZBnV92s4X&ik#-#yO9_JmLkEiqgTv&5
zdKH@&=_CrVC>ZLQPL8yf=5}&)_6`kD2m|r!?d2wW+izy7QrYA%NtjijqPEO_^Yq|!
z9i}tSHZ^=@F%~E-`BPf_yR?Ww!AGuMpzcrY?-~XnJ;%dBy8i-rE2awRnf90VmGl<(
z6s<2^SF*NvP0{2T(-Z_S1pTKfsKEp$I50ge{jm6H$%hFJIZ)Q(5`hnkpL|$cV!wG_
XYl0Qi!^q7C_3Q;UU(hpv6N&r)bAD$%

ZennFC1307A搭載SD-IDE変換基板のおかしな挙動を直す

Sometimes I wonder if the game composers who worked on PC-98 porn games went so hard because the games were porn and therefore "didn't matter", so they decided to go all out instead of phone it in OR if they saw porn games as a genuine genre of game and so they put their all into it.

It makes me think about the differences in porn games now because like I can't think of a single modern porn game that I can praise for its artistic/musical qualities. Maybe I'm just not looking? I dunno.

#pc98 #chiptune #gamedev #indiedev

Goodie number 3: yet another bus mouse I didn't need but it was cheap so I got it anyway.
Sadly, it does not contain the bus mouse ISA card. But my olivetti M24 has a bus mouse port built into its keyboard (with a different pinout, so I'll need to use an adapter).
I have a hunch this will work without changes on my PC-98, I bought this mainly to test that theory for my blog post since the logitech C7 is relatively affordable as long as you don't get the translucent version.
#RetroComputing #VintageComputing #PC98