The T command allows execution of one instruction at a time, displaying the target state after execution. T starts tracing at the address in the target PC. The optional count field (which defaults to 1 if none entered) specifies the number of instructions to be traced before returning control to 16XBug. Breakpoints are monitored (but not inserted) during tracing for all trace commands. Instruction memory must be writable. In all cases, if a breakpoint with 0 count is encountered, control is returned to 16XBug. The trace functions are implemented with the trace bits (T0, T1) in the MC68040 status register, and in the T-bit in the MC68060 status register. These bits should not be modified while using the trace commands.
TA - Terminal Attach
Terminal Attach allows you to assign any serial port to be the console. The port specified must already be assigned (refer to the Port Format (PF) command). Any serial port selected as the console port is saved/retained in Battery Backed Up RAM (BBRAM), also known as Non-Volatile RAM (NVRAM). This console remains in effect through power-up or any reset. Note The Reset and Abort option returns the console port to the default port ("DEBUG" port, LUN 0). Any time the console port is moved, you are prompted to update the NVRAM with the new port configuration parameters.
TC - Trace on Change of Control Flow
The TC command starts execution at the address in the target PC and begins tracing upon the detection of an instruction that causes a change of control flow, such as JSR, BSR, RTS, etc. This means that execution is in real time until a change of flow instruction is encountered. The optional count field (which defaults to 1 if none entered) specifies the number of change of flow instructions to be traced before returning control to 16XBug. Breakpoints are monitored (but not inserted) during tracing for all trace commands, which allows the use of breakpoints in ROM or write protected memory. Note that the TC command recognizes a breakpoint only if it is at a change of flow instruction. In all cases, if a breakpoint with 0 count is encountered, control is returned to 16XBug.
product application
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--ICS Triplex Rockwell T8151B/T8461/T8310
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