Sam Stevens
7bd26502ff
Re-formatted as markdown. Changed how flags are accessed. Started flag documentation. Added syscalls.
1.3 KiB
1.3 KiB
Flags
Locations shown below are relative to the start of flags, typically 0xFF00.
Bits marked N/A read as zero and writing values will not have an effect.
Console
Status | CONSTS | 0x00
| 7 | 6 | 5 | 4 | 3 | 2 | 1 | 0 | |
|---|---|---|---|---|---|---|---|---|
| Read/Write | R/W | R | ||||||
| Defaults | 1 | X | ||||||
| Name | N/A | N/A | N/A | N/A | N/A | N/A | Enabled | Available |
Cursor X | CONPOSX | 0x01
- 8-bit unsigned number
- Read/Write
Cursor Y | CONPOSY | 0x02
- 8-bit unsigned number
- Read/Write
Width | CONX | 0x03
- 8-bit unsigned number
- Read/Write
Height | CONY | 0x04
- 8-bit unsigned number
- Read/Write
ALU
Flags here for logic/math results
Tape
Tape control and status
Traps
Trap status and settings