DEBUG MONITOR COMMANDS
M68CPU32BUG/D REV 1 3-23
GO Go Execute User Program GO
3.12 GO EXECUTE USER PROGRAM
GO [<addr>]
Use the GO command (alias G) to initiate target code execution. All previously set breakpoints
are enabled. If an address is specified, it is placed in the target PC. Execution starts at the target
PC address.
The sequence of events is:
1. An address is specified and loaded into the target PC
2. If a breakpoint is set at the target PC address, the instruction is traced at the target PC
(executed in trace mode)
3. All breakpoints are inserted in the target code
4. Target code execution resumes at the target PC address
There are several methods for returning control to CPU32Bug:
• Execute the .RETURN TRAP #15 function
• Press the ABORT switch or RESET switch of the M68300PFB Platform Board
• Encountering a breakpoint with 0 count
• Generation of an unexpected exception
EXAMPLE The following program resides at $4000.
CPU32Bug>MD 4000;DI<CR>
00004000 2200 MOVE.L D0,D1
00004002 4282 CLR.L D2
00004004 D401 ADD.B D1,D2
00004006 E289 LSR.L #$1,D1
00004008 66FA BNE.B $4004
0000400A E20A LSR.B #$1,D2
0000400C 55C2 SCS.B D2
0000400E 60FE BRA.B $400E
CPU32Bug>RM D0<CR>
Commentaires sur ces manuels