CHAPTER 8: DEBUGGER

bd (data break)

Function

This command sets or clears data break. This command allows you to specify the following break conditions:

1.Memory address range to be read or written (one area)

2.Data pattern to be read or written (bit mask possible)

3.Memory read/write (three conditions: read, write, or read or write)

The program breaks after completing a memory access that satisfies the above conditions.

 

Format

 

 

 

 

 

 

 

(1) >bd <data> <option> <address1> <address2>↵

(direct input mode)

(2) >bd↵

 

 

 

 

 

(guidance mode)

 

Data break set status

 

 

 

 

 

1. set

2. clear

…?

<1 2>↵

(Command is completed when "2" is selected.)

 

data

 

Old data

 

: <data>↵

 

 

 

R/W (R,W,∗ )

Old option

: <option>↵

 

 

Start address Old address : <address1>↵

 

 

End address Old address : <address2>↵

 

>

 

 

 

 

 

 

 

 

<data>:

Data pattern; binary (∗

can be input for the bits to be masked)

 

<option>:

Memory read/write option; r, w, or ∗

 

 

<address1–2>: The specified address; hexadecimal or symbol (IEEE-695 format only)

 

Condition:

0 ≤ address1 ≤ address2 ≤ 0xffff, 0 ≤

data ≤ 0b1111

 

 

 

 

 

 

 

 

 

 

Examples

 

 

 

 

 

 

 

Format (1)

 

 

 

 

 

 

>bd 1000 W 0 f↵

 

... Sets a data break condition so that the program breaks when 0x8 is written

 

 

 

 

 

 

to the address range from 0x0 to 0xf.

 

 

 

 

 

 

* The direct input mode cannot clear the set condition.

 

Format (2)

 

 

 

 

 

 

>bd↵

 

 

 

 

 

 

 

data: -

R/W: -

area:

-

 

 

1. set

2. clear ...? 1↵

 

... "1. set" is selected.

 

data

 

---- : 1***↵

 

... Data pattern is set to 0b1***.

 

R/W (R,W,*)

-

: w↵

 

... R/W condition is set for write access.

 

Start

address ---- : 0↵

 

... Break address range is set to 0x0–0xf.

 

End

address ---- : f

 

 

 

>bd↵

 

 

 

 

 

... Currently set condition.

 

data: 1***

R/W: W area: 0000 - 000F

 

1. set

2. clear ...? 2↵

 

... "2. clear" is selected.

 

>bd↵

 

 

 

 

 

 

 

data: -

R/W: -

area:

-

 

 

1. set

2. clear ...? ↵

 

...Terminated by [Enter] key.

>

"∗ " in the binary data pattern specifies that the bit will not be compared with the actual read/write data.

S5U1C63000A MANUAL

EPSON

187

(S1C63 FAMILY ASSEMBLER PACKAGE)