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Foundation の console で PCG mode 3 の全角文字を表示する - #153
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8×16表示で JIS X 0208 の文字と U+FFFD を UTF-16 の2セル文字として描画する。 全角フォントは最初の mode 3 切替時に VRAM 0x200000 へ配置し、折返し・BS・ 上書き/消去時の対の解消を扱う。 Co-Authored-By: Claude Sonnet 5.5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01NgLFc3Zqfh41qc1tk5gozY
Co-Authored-By: Claude Sonnet 5.5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01NgLFc3Zqfh41qc1tk5gozY
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Requested by src3453 · project thread
Closes #150
概要
#148 で VDP に入った PCG mode 3 の 2 byte 文字（FG 属性 bit 7:6 = 01 MSB / 10 LSB、
WIDE_FONT_BASE）を、console サービスから使えるようにします。?1 セルです。0x200000 + u*32（Unifont ROM と同じ並び）へ書き、WIDE_FONT_BASEを設定します。データはfoundation/boot/wide_font.pyがビルド時にassets/unifont-bmp.chrから生成します（約 240 KiB）。console の MMIO grant に0x10200000–0x103FFFFFを追加し、1 byte 用フォント領域は引き続き触りません。doc/spec_Foundation_API.md§8.1／§8.1.2）、README、MEMORY.md を更新しました。テスト
python3 -m unittest discover -s foundation/tests/console（ホスト＋testbench、全 9 件）合格。新規test_wide_characters_in_8x16は属性・WIDE_FONT_BASE・Unifont 由来の画素を確認します。FND_MM=slotでも同テスト合格。Generated by Claude Code