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Merge pull request #2764 from rzero9/patch-2

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fmtowns: fix kanji offset calculation
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R. Belmont 2017-11-01 08:55:37 -04:00 committed by GitHub
commit 6ed80ab6d1
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1 changed files with 5 additions and 4 deletions
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9
src/mame/video/fmtowns.cpp
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@ -228,11 +228,11 @@ void towns_state::towns_update_kanji_offset()
} }
else if(m_video.towns_kanji_code_h < 0x70) else if(m_video.towns_kanji_code_h < 0x70)
{ {
m_video.towns_kanji_offset = ((m_video.towns_kanji_code_l & 0x1f) << 4) m_video.towns_kanji_offset = (((m_video.towns_kanji_code_l & 0x1f) << 5)
+ (((m_video.towns_kanji_code_l - 0x20) & 0x60) << 8) + (((m_video.towns_kanji_code_l - 0x20) & 0x60) << 9)
+ ((m_video.towns_kanji_code_h & 0x0f) << 9) + ((m_video.towns_kanji_code_h & 0x0f) << 10)
+ (((m_video.towns_kanji_code_h - 0x30) & 0x70) * 0xc00) + (((m_video.towns_kanji_code_h - 0x30) & 0x70) * 0xc00)
+ 0x8000; + 0x8000) >> 1;
} }
else else
{ {
@ -244,6 +244,7 @@ void towns_state::towns_update_kanji_offset()
} }
} }
READ8_MEMBER( towns_state::towns_video_cff80_r ) READ8_MEMBER( towns_state::towns_video_cff80_r )
{ {
uint8_t* ROM = m_user->base(); uint8_t* ROM = m_user->base();