SuperTrace ========== SuperTrace is a debugger for Nas-sys 1 or Nas-sys 3 with dynamic breakpoints. The breakpoint is described by a test condition in Zilog Assembler statements combined with logical operators (AND, OR, NOT). The debugger uses the single step hardware of the Nascom, which generates a NMI on each M1 cycle of the Z80. Debugging through LDIR for example generates so many breakpoints as the BC register holds. Start: E8000 or EC400 (depends on version) E start_adr arg1 arg2 arg3 Commands: Q : Quit to NAS-SYS R : Register menu enter register or memory values, return to main menu with ESC (shift CR) T : Test Condition (ends with '.') e.g. HL=1234 AND DE=4321. L : Lines S : toggles Single Step or Run Mode M : Modify (as the NAS-SYS 'M' command) N : New display K : The ENTER key steps to the next statement of the debugged program.