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mgbaGame Boy

MGBA(6) Games Manual MGBA(6)

NAME

mgbaGame Boy Advance emulator

SYNOPSIS

mgba [-123456dfg] [-b biosfile] [-c cheatfile] [-l loglevel] [-p patchfile] [-s n] [-v moviefile] file

DESCRIPTION

mgba is a Game Boy Advance emulator. The options are as follows:
-1
Scale the window 1×.
-2
Scale the window 2×.
-3
Scale the window 3×.
-4
Scale the window 4×.
-5
Scale the window 5×.
-6
Scale the window 6×.
-b biosfile, --bios biosfile
Specify a BIOS file to use during boot. If this flag is omitted, mgba will use the BIOS specified in the configuration file, or a high‐level emulated BIOS if none is specified.
-c cheatfile, --cheats cheatfile
Apply cheat codes from cheatfile.
-d
Start emulating via the command‐line debugger.
-f
Start the emulator full‐screen.
-g
Start a gdb(1) session. By default the session starts on port 2345.
-l loglevel
Log messages during emulation to stdout. loglevel is a bitmask defining which types of messages to log:
  • 1 – fatal errors
  • 2 – errors
  • 4 – warnings
  • 8 – informative messages
  • 16 – debugging messages
  • 32 – stub messages for unimplemented features
  • 256 – in‐game errors
  • 512 – software interrupts
  • 1024 – emulator status messages
  • 2048 – serial I/O messages
The default is to log warnings, errors, fatal errors, and status messages.
-p patchfile, --patch patchfile
Specify a patch file in BPS, IPS, or UPS format.
-s n, --frameskip n
Skip every n frames.
-v moviefile, --movie moviefile
Play back a movie of recording input from moviefile.

CONTROLS

The default controls are as follows:
A
x
B
z
L
a
R
s
Start
Enter
Select
Backspace
Load state
F1F9
Save state
Shift⟩‐F1F9
Frame advance
Ctrl⟩‐n

DEBUGGER

When mgba is run with the -d option, the command‐line debugger is enabled. It supports the following commands:
b[reak] address
 
b[reak]/a address
 
b[reak]/t address
Set a breakpoint – ARM (‘/a’), Thumb (‘/t’), or the current CPU mode – at address.
c[ontinue]
Continue execution.
d[elete] address
Delete a breakpoint at address.
dis[asm] [address [count]]
 
dis[asm]/a [address [count]]
 
dis[asm]/t [address [count]]
 
dis[assemble] [address [count]]
 
dis[assemble]/a [address [count]]
 
dis[assemble]/t [address [count]]
Disassemble count instructions starting at address, as ARM (‘/a’), Thumb (‘/t’), or the current CPU mode. If count is not specified, only disassemble the instruction at address. If address is not specified, only disassemble the current address.
h[elp]
Print help.
i[nfo]
 
status
Print the current contents of general‐purpose registers and the current program state register, and disassemble the current instruction.
n[ext]
Execute the next instruction.
p[rint] value ...
 
p[rint]/t value ...
 
p[rint]/x value ...
Print one or more values as binary (‘/t’), hexadecimal (‘/x’), or decimal.
q[uit]
Quit the emulator.
reset
Reset the emulation.
r/1 address
 
r/2 address
 
r/4 address
Read a byte (‘/1’), halfword (‘/2’), or word (‘/4’) from address.
w[atch] address
Set a watchpoint at address.
w/1 address data
 
w/2 address data
 
w/4 address data
Write data as a byte (‘/1’), halfword (‘/2’), or word (‘/4’) to address.
w/r register data
Write data as a word to register.
x/1 address [count]
 
x/2 address [count]
 
x/4 address [count]
Examine count bytes (‘/1’), halfwords (‘/2’), or words (‘/4’) from address. If count is not specified, examine 16 bytes, 8 halfwords, or 4 words.

ENVIRONMENT

XDG_CONFIG_HOME
The location where mgba will look for the configuration directory. If not set, ~/.config is used.

FILES

$XDG_CONFIG_HOME/mgba/config.ini
Default mgba(6) configuration file.
portable.ini
If this file exists in the current directory, mgba will read config.ini from the current directory instead of $XDG_CONFIG_HOME/mgba.

AUTHORS

Jeffrey Pfau <jeffrey@endrift.com>

HOMEPAGE

July 29, 2015 Debian Sid