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Japanese systems have a subset of ASCII and Japanese characters in the upper part.
| Range | Usage |
|---|---|
| $00-$1f | Control characters (same as ASCII) |
| $20-$7f | Roman alphanumeric and punctuation - same as ASCII except for $5c (should be Reverse Solidus "\", displayed as Yen Sign "¥") and $5f (should be Low Line "_", displayed as Greek Small Letter Pi "π"). |
| $80-$89 | Box drawing lines |
| $8a-$8d | Box drawing curves |
| $8e-$8f | Arrows |
| $90 | Shaded block |
| $91-$94 | Box drawing lines |
| $95-$9f | Part-filled blocks - diagonal and vertical |
| $a0 | Space |
| $a1-$a5 | Japanese punctuation |
| $a6-$dd | Katakana |
| $de-$df | Dakuten |
| $e0-$e4 | Part-filled blocks - horizontal |
| $e5 | Solid block |
| $e6-$e9 | Thick lines |
| $ea | Checkerboard pattern |
| $eb-$ec | Circles |
| $ed-$ef | Date characters 年月日 |
| $f0-$f4 | Five Elements 火水木金土 |
| $f5-$fd | Game graphics |
| $fe | Division sign |
| $ff | Unused |

Export systems use the Japanese font with the Japanese characters ($a0-$df and $ed-$f4) removed and extra characters for European languages in their place:
| Range | Usage |
|---|---|
| $a0-$c2 | Accented letters |
| $c3-$ca | Greek alphabet subset |
| $cb | Letter Ç |
| $cc-$cd | Inverted punctuation |
| $ce | Combining half-A for Æ |
| $cf | Pound/Lira symbol £/₤ |
| $d0-$df | Unused |
| $ed-$f4 | Unused |
A Windows .fon formatted font is available with this character set, which can be useful for viewing files written for the SC-3000.
Download SC-3000 font by Bimbo87