Section 2 Software Specifications when Using the SH7781
Rev. 2.00 Jan. 28, 2008 Page 17 of 32
REJ10J1422-0200
9. When the [Virtual] option is selected in the [Memory area] group box in the [General] page of
the [Configuration] dialog box, a BREAKPOINT is set to a virtual address. A BREAKPOINT
is set after enabling the SH7781 MMU upon program execution. After setting, the MMU is
returned to the original state. When an ASID value is specified, the BREAKPOINT is set to
the virtual address corresponding to the ASID value. The emulator sets the BREAKPOINT
after rewriting the ASID value to the specified value, and returns the ASID value to its original
value after setting. When no ASID value is specified, the BREAKPOINT is set to a virtual
address corresponding to the ASID value at command input.
10. An address (physical address) to which a BREAKPOINT is set is determined when the
BREAKPOINT is set. Accordingly, even if the VP_MAP table is modified after
BREAKPOINT setting, the BREAKPOINT address remains unchanged. When a
BREAKPOINT is satisfied with the modified address in the VP_MAP table, the cause of
termination displayed in the status bar and the [Output] window is ILLEGAL INSTRUCTION,
not BREAKPOINT.
11. If an address of a BREAKPOINT cannot be correctly set in the ROM or flash memory area, a
mark z will be displayed in the [BP] area of the address on the [Source] or [Disassembly]
window by refreshing the [Memory] window, etc. after Go execution. However, no break will
occur at this address. When the program halts with the event condition, the mark z
disappears.
2.2.4 Notes on Setting the [Event Condition] Dialog Box and the BREAKCONDITION_
SET Command
1. When [Go to cursor], [Step In], [Step Over], or [Step Out] is selected, the settings of Event
Condition 3 are disabled.
2. When an Event Condition is satisfied, emulation may stop after two or more instructions have
been executed.
3. If a PC break address condition is set to the slot instruction after a delayed branch instruction,
user program execution cannot be terminated before the slot instruction execution; execution
stops before the branch destination instruction.
2.2.5 Note on Setting the UBC_MODE Command
In the [Configuration] dialog box, if [User] is set while the [UBC mode] list box has been set,
Ch10 (IA_OA_R) and Ch11 (OA_OA_CT_R) of Event Condition cannot be used.
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