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figure this out plz xoxo

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minjaesong
2022-02-24 17:16:03 +09:00
parent f6ee563573
commit 62077ea5e6
1 changed files with 19 additions and 9 deletions
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28
terranmon.txt
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@@ -171,18 +171,13 @@ From the start of the memory space:
framebuffer scroll X framebuffer scroll X
2 bytes 2 bytes
framebuffer scroll Y framebuffer scroll Y
896 bytes 2 bytes
horizontal scroll offset for scanlines
1 bytes
terminal configuration #0
0b 0000 000h
h: halfrow mode
233 bytes
unused unused
1920 1128 bytes
"copper" instructions (282 words)
1920 bytes
mapped to font ROM mapped to font ROM
Font Mapping area holds 128 characters in consecutive order, each character is always 15 bytes. Font Mapping area holds 128 characters in consecutive order, each character is always 15 bytes.
2 bytes 2 bytes
Cursor position in: (y*80 + x) Cursor position in: (y*80 + x)
2560 bytes 2560 bytes
@@ -258,3 +253,18 @@ MMIO
Text-mode-font-ROM is immutable and does not belong to VRAM Text-mode-font-ROM is immutable and does not belong to VRAM
Even in the text mode framebuffer is still being drawn onto the screen, and the texts are drawn on top of it Even in the text mode framebuffer is still being drawn onto the screen, and the texts are drawn on top of it
Copper Commands
WAITFOR 3,32
80·03 46 00 (0x004603: offset on the framebuffer)
SCROLLX 569
A0·39 02 00
SCROLLY 321
B0·41 01 00
SETPAL 5 (15 2 8 15)
C0·05·F2 8F (0x05: Palette number, 0xF28F: RGBA colour)
SETBG (15 2 8 15)
D0·00·F2 8F (0xF28F: RGBA colour)
END (pseudocommand of WAITFOR)
80·FF FF FF