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This commit is contained in:
Kartik K. Agaram 2021-08-29 20:39:42 -07:00
parent b1dcfb03d0
commit 0633e401f9
3 changed files with 12 additions and 8 deletions
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10
font.subx
View File

@ -4,11 +4,15 @@
# See https://en.wikipedia.org/wiki/GNU_Unifont#The_.hex_font_format
# Website: http://unifoundry.com/unifont/index.html
# License: http://unifoundry.com/LICENSE.txt (GPL v2)
#
# This file can only contain:
# - 2-letter hex bytes, optionally followed by '/' and single-word comments, and
# - line comments after '#'
# Each glyph consists of a 1-byte size followed by a 16-byte bitmap.
# The size can currently be only 8 or 16 (10).
# * If it's 8, the glyph is 8 pixels wide, each row consists of one byte, and
# The size can currently be only '08' or '10' (16).
# * If it's '08', the glyph is 8 pixels wide, each row consists of one byte, and
# the last 8 bytes of the bitmap are ignored.
# * If it's 16, the glyph is 16 pixels wide, and each row consists of two
# * If it's '10', the glyph is 16 pixels wide, and each row consists of two
# bytes.
# 0x00-0x1f: unprintable ASCII

4
translate
View File

@ -71,8 +71,8 @@ fi
dd if=labels of=code.img seek=$DEBUG conv=notrunc # keep this sync'd with abort.subx
## Some space for font data at another well-defined location
cat font.subx |sed 's,#.*,,' |sed 's,/[^ ]*,,' |linux/hex > a.font
## Font data at another well-defined location
cat font.subx |sed 's,/[^ ]*,,' |linux/hex > a.font
if [ `stat --printf="%s" a.bin` -ge $(( ($DEBUG - $FONT) * 512 )) ]
then

6
translate_emulated
View File

@ -12,7 +12,7 @@ export DISK=20160 # 20*16*63 512-byte sectors = almost 10MB
dd if=/dev/zero of=code.img count=$DISK
# code: sectors 0-8999
# font: sectors 9000-10079 (1080 sectors = space enough for 16k glyphs (1080 * 512 / 33 bytes per glyph))
export FONT=9000
export FONT=9000 # keep this sync'd with boot.subx
# debug: sector 10080 onwards
export DEBUG=10080
@ -75,8 +75,8 @@ fi
dd if=labels of=code.img seek=$DEBUG conv=notrunc # keep this sync'd with abort.subx
## Some space for font data at another well-defined location
cat font.subx |sed 's,#.*,,' |sed 's,/[^ ]*,,' |linux/hex > a.font
## Font data at another well-defined location
cat font.subx |sed 's,/[^ ]*,,' |linux/hex > a.font
if [ `stat --printf="%s" a.bin` -ge $(( ($DEBUG - $FONT) * 512 )) ]
then