Virtual console display (80x24 character grid, 16 colors)
Memory layout
0 - F
Address
Description
Name
0
code pointer
CP
2
stack pointer
SP
4
zero flag
ZF
6
carry flag
CF
8
register
AX
A
register
BX
C
register
CX
E
register
DX
10 - FF
Address
Description
Name
10
interrupt value
IX
12
ir state
IT
14
ir keyboard
IK
16
ir stack overflow
IS
100 - FFF
Address
Description
Name
100
stack base
SB
...
stack
-
FFF
stack max
-
1000 - 1FFFF
The memory layout of this region differs from mode to mode. The graphics mode is stored in 1FFE.
The only available mode at this time is the terminal mode (80x24).
In this mode the region (1000 - 1EFF) stores character and color data.
The first byte maps the color (first half foreground, second half background). You can choose between 8 different colors.
The second byte must be a UTF-8 encoded character.
License
Copyright 2016 Lennart Espe. All rights reserved.
Use of this source code is governed by a MIT-style
license that can be found in the LICENSE.md file.