Difference between revisions of "Debug device"
From MSX Game Library
| Line 22: | Line 22: | ||
│ │ │ │ │ │ └────── Binary mode (0 = OFF, 1 = ON) | │ │ │ │ │ │ └────── Binary mode (0 = OFF, 1 = ON) | ||
│ │ │ │ │ └────────── Decimal mode (0 = OFF, 1 = ON) | │ │ │ │ │ └────────── Decimal mode (0 = OFF, 1 = ON) | ||
| − | + | 0 : 0 1 └────────────── ASCII mode (0 = OFF, 1 = ON) | |
----------------------------------------------------------------------------- | ----------------------------------------------------------------------------- | ||
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│ │ │ │ │ │ └───┴── Mode (0 = hex, 1 = binary, 2 = decimal, 3 = ASCII mode) | │ │ │ │ │ │ └───┴── Mode (0 = hex, 1 = binary, 2 = decimal, 3 = ASCII mode) | ||
│ │ │ │ │ └────────── <b>Data width (0 = 8 bits; 1 = 16 bits)</b> | │ │ │ │ │ └────────── <b>Data width (0 = 8 bits; 1 = 16 bits)</b> | ||
| − | + | 0 : 1 1 └────────────── <b>Signed (0 = unsigned, 1 = signed)</b> | |
----------------------------------------------------------------------------- | ----------------------------------------------------------------------------- | ||
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----------------------------------------------------------------------------- | ----------------------------------------------------------------------------- | ||
7 6 5 4 3 2 1 0 | 7 6 5 4 3 2 1 0 | ||
| − | + | │ └───┴───┴───┴───┴───┴───┴── <b>Command ID (0x7F = break point)</b> | |
| + | 1 | ||
[[category:Proposal]] | [[category:Proposal]] | ||
Revision as of 18:47, 27 July 2023
Proposal to improve the debugging protocol used by openMSX pseudo-device.
Based on: https://openmsx.org/manual/user.html#debugdevice
Debug device protocol
The additions are in bold.
----------------------------------------------------------------------------- Port 0x2E - Mode Set Register ----------------------------------------------------------------------------- 7 6 5 4 3 2 1 0 │ │ │ │ └───┴───┴───┴── Mode-specific parameters │ │ └───┴────────────────── Output mode (0 = OFF, 1 = single byte, 2 = multi byte) │ └────────────────────────── Line feed mode (0 = line feed at mode change, 1 = no line feed) └────────────────────────────── Functionality (0 = output, 1 = command) ----------------------------------------------------------------------------- Functionality = output, Output mode = single byte ----------------------------------------------------------------------------- 7 6 5 4 3 2 1 0 │ │ │ │ │ │ │ └── Hexadecimal mode (0 = OFF, 1 = ON) │ │ │ │ │ │ └────── Binary mode (0 = OFF, 1 = ON) │ │ │ │ │ └────────── Decimal mode (0 = OFF, 1 = ON) 0 : 0 1 └────────────── ASCII mode (0 = OFF, 1 = ON) ----------------------------------------------------------------------------- Functionality = output, Output mode = multi byte ----------------------------------------------------------------------------- 7 6 5 4 3 2 1 0 │ │ │ │ │ │ └───┴── Mode (0 = hex, 1 = binary, 2 = decimal, 3 = ASCII mode) │ │ │ │ │ └────────── Data width (0 = 8 bits; 1 = 16 bits) 0 : 1 1 └────────────── Signed (0 = unsigned, 1 = signed) ----------------------------------------------------------------------------- Functionality = command ----------------------------------------------------------------------------- 7 6 5 4 3 2 1 0 │ └───┴───┴───┴───┴───┴───┴── Command ID (0x7F = break point) 1