mirror of https://github.com/a2-4am/4cade.git
153 lines
2.6 KiB
Plaintext
153 lines
2.6 KiB
Plaintext
CIRCUITOUS font information
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2020-09 last updated
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- $80 characters only (high bit is always 0)
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- $20 and above are standard ASCII
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- $00..$1F are various shapes and characters in no standard order
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- Capital letters are full-width, which makes all-caps drawing look bad, so
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don't do that
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- Capital letters are also full-height, which makes single-spaced text look
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bad, so don't do that either
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Font routines are near the top of LC RAM, accessible to either bank. However,
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font data is stored in LC RAM bank 2, because that's where we have space. Note
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that most strings are in LC RAM bank 1, which is admittedly inconvenient. You
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are responsible for copying characters to a place where the drawing routine can
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access them. (See src/ui.font.a) The drawing routines will switch to LC 2 to
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access font data, then back to LC 1 before returning.
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Font data is stored non-consecutively. Row 0 data starts at $D600, in order, so
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row 0 of character $00 is at $D600, row 0 of character $01 is at $D601, &c.
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Row 1 starts at $D680; row 2 starts at $D700. The entire font set finishes at
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$D9FF.
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HEX DESCRIPTION
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$00 full horizontal circuit path
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$01 horizontal circuit path endpoint with rounded left side
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$02 horizontal circuit path endpoint with rounded right side
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$03 full vertical circuit path
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$04 vertical circuit path endpoint with rounded top
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$05 vertical circuit path endpoint with rounded bottom
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$06 rounded top-left quadrant circuit path
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$07 rounded top-right quadrant circuit path
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$08 left arrow
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$09 rounded bottom-right quadrant circuit path
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$0A
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$0B up arrow
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$0C rounded bottom-left quadrant circuit path
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$0D carriage return symbol
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$0E open apple
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$0F closed apple
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$10 dot, small
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$11 dot, medium
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$12 dot, large
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$13 dot, extra large
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$14 heart
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$15 right arrow
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$16 open padlock
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$17 times
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$18
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$19
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$1A down arrow
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$1B lowercase a with umlaut
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$1C lowercase e with accent
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$1D lowercase i with accent
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$1E lowercase o with backtick accent
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$1F uppercase A with accent
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$20 space
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$21 !
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$22 "
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$23 #
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$24 $
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$25 %
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$26 &
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$27 '
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$28 (
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$29 )
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$2A *
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$2B +
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$2C ,
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$2D -
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$2E .
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$2F /
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$30 0
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$31 1
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$32 2
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$33 3
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$34 4
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$35 5
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$36 6
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$37 7
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$38 8
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$39 9
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$3A :
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$3B ;
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$3C <
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$3D =
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$3E >
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$3F ?
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$40 @
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$41 A
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$42 B
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$43 C
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$44 D
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$45 E
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$46 F
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$47 G
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$48 H
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$49 I
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$4A J
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$4B K
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$4C L
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$4D M
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$4E N
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$4F O
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$50 P
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$51 Q
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$52 R
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$53 S
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$54 T
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$55 U
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$56 V
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$57 W
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$58 X
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$59 Y
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$5A Z
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$5B [
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$5C \
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$5D ]
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$5E ^
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$5F _
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$60 `
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$61 a
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$62 b
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$63 c
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$64 d
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$65 e
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$66 f
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$67 g
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$68 h
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$69 i
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$6A j
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$6B k
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$6C l
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$6D m
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$6E n
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$6F o
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$70 p
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$71 q
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$72 r
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$73 s
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$74 t
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$75 u
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$76 v
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$77 w
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$78 x
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$79 y
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$7A z
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$7B {
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$7C |
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$7D }
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$7E ~
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$7F full block (solid cursor)
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