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Chapter 5: Viewing Code and Data
To enable simulated I/O
stdout This name will be replaced by the name stored in the stdout_name.
This name is set via the Stdio_Redirect command.
stderr This name will be replaced by the name stored in the stderr_name.
This name is set via the Stdio_Redirect command.
/dev/simio/keyboard This name refers to the keyboard while the product is
running interactively.
/dev/simio/display This name refers to the stdio display window while the
product is running interactively.
To enable simulated I/O
• Using the command line, enter:
Debugger Execution IO_System Enable
When SIMIO is enabled, polling for simio command begins. In the
debugger/emulator, the host computer periodically reads the memory in the
emulator or target system to detect simio commands issued by the user code.
SIMIO behavior in the debugger is identical to that described in the Simulated
I/O User's Guide, with the exception that only one control address is supported
by the debugger. The control address must be named systemio_buf
(_systemio_buf in assembly code).
SIMIO is also enabled if the "Enable polling for simulated I/O?" emulator
configuration question was answered yes and "Simio control address 1" is
_systemio_buf.
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