| Commit message (Collapse) | Author | Age |
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Because the program counter is incremented immediately after an
instruction byte is loaded, the value of the program counter reported
by a debug instruction was actually the address of the following byte.
This made the SYM symbol name line in the debug output report the wrong
symbol name in some situations.
This was fixed by decrementing the value used.
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Debug messages are now printed with a blue [INFO] prefix, to match the
style of the information messages printed by the rest of the project.
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The stack state when halting was previously being printed even outside
of debug mode.
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The memory address of the most recent symbol is now displayed next to
the name of that symbol in the emulator debug output, to make it easier
to see how close the program counter is to that symbol.
The source location of that symbol is now also shown as dimmed to make
it less distracting.
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The assembler saves out symbols files, which are loaded automatically
by the emulator when present. The name and location of the most recent
label is displayed with the debug information when symbols are loaded.
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This is a complete rewrite and restructure of the entire emulator
project, as part of the effort in locking down the Bedrock specification
and in creating much better tooling for creating and using Bedrock
programs.
This commit adds a command-line argument scheme, an embedded assembler,
a headless emulator for use in non-graphical environments, deferred
window creation for programs that do not access the screen device,
and new versions of phosphor and bedrock-core. The new version of
phosphor supports multi-window programs, which will make it possible to
implement program forking in the system device later on, and the new
version of bedrock-core implements the final core specification.
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