Epson S5U1C17001C, Manual

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S5U1C17001C ManUal
EPSOn
10-99
(C COMPilEr PaCkagE fOr S1C17 faMily) (Ver. 1.5.0)
10 DEBUggEr
10
Debugger
The
n
mark (in blue) indicates that the hardware PC breakpoint is effective. The blue color of the mark can be
changed to any desired color in the [Source Preferences] dialog box, which appears when choosing [Source...]
from the [Preferences] menu in the [Source] window. Any breakpoint disabled by a command, etc. changes
color to black.
Breakpoints can be disabled or enabled again in the [Breakpoints] window. For details, see Section 10.4.6,
"[Breakpoints] Window".
The
n
mark (in orange) indicates that the temporary hardware PC breakpoint is effective.
Notes
• The maximum number of enabled hardware PC breakpoints that can be set is 1 to 4 for ICD mode,
depending on the model, and only 1 for the SIM mode. You can set more hardware PC breakpoints by setting
the breakpoints in the disabled state. Keep in mind that this break count includes a temporary hardware PC
breakpoint.
• C source lines that are not expanded to mnemonic cannot be specified as a location where to set a hardware
PC breakpoint. Specifying such a C line sets a hardware PC breakpoint at the address of the first instruction
to be executed next.
• If a function name or the beginning C source line in a function is specified as the position at which to set
a hardware PC breakpoint, the program execution will break at the start address of the first C source (i.e.,
instruction to be expanded to mnemonic) in the function. Although a
ld
instruction to save registers is
inserted at the beginning of the function during compilation, this instruction is executed before the program
breaks. To make the program break before executing this instruction, specify a breakpoint with the address
value of that instruction.
• No hardware PC breakpoints can be set at the following lines, because an error is assumed and the target
program can no longer be executed. (This problem may be resolved, however, by clearing the breakpoint.)
- Extended instruction lines (except for the
ext
instruction at the beginning)
- Delayed instruction lines (next line after a delayed branch instruction)
• If hardware PC breakpoints are specified using a nonexistent function name or line number, an error is
assumed.
• When specifying hardware PC breakpoints by address value and the address is specified with an odd value,
the specified address is adjusted to the 16-bit boundary by assuming LSB = 0.