T Trace - Nice Z80+ Operation Manual

T-TRACE
Purpose
Allows you to follow a program through one or more instruction steps. After each
instruction is executed, NICE displays all internal Z80 registers and flags, as well as
the mnemonic of the next instruction. The Trace Command is especially useful in
debugging virgin code.
Format
The Trace Command has two formats:
1.
T -
Traces the program through one instruction.
2. T Number-of-Instructions - Traces the program for the specified number of
instructions. (Number-of-Instructions is a 16-bit value.)
After NICE traces each instruction, all the Z80 registers and flags are printed at the
terminal. If breakpoints are enabled, encountering a breakpoint will cause the trace
sequence to terminate.
You can start or stop printout by entering CTRL-S, or terminate the command by
entering CTRL-C.
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