CHAPTER 8: DEBUGGER

dw (data memory watch)

Function

This command registers four data memory locations as the watch data addresses. Memory contents equivalent to 4 words at each watch address are displayed in the [Register] window.

 

Format

 

 

 

(1)

>dw <address1> [ ... <address4>] ↵

(direct input mode)

(2)

>dw↵

 

(guidance mode)

 

 

Address 1 = Old value: <address1>↵

 

 

 

Address 2 = Old value: <address2>↵

 

 

 

Address 3 = Old value: <address3>↵

 

 

 

Address 4 = Old value: <address4>↵

 

>

<address1–4>: Watch address; hexadecimal or symbol (IEEE-695 format only)

 

Condition:

0 ≤

address1 ≤

address2 ≤ 0xffff

 

 

 

 

 

 

 

Examples

 

 

 

 

Format (1)

 

 

 

 

>dw 10 14 18 1C↵

... Sets watch addresses to 0x10, 0x14, 0x18, and 0x1c.

 

Format (2)

 

 

 

 

>dw↵

 

 

 

 

Address1 = 0010 :0↵

 

 

Address2 = 0014

:4↵

 

 

Address3 = 0018

:8↵

 

 

Address4 = 001c

:c↵

 

>

Notes

•When the debugger starts up, four locations at addresses 0, 4, 8, and 0xc are initially set as the watch data addresses.

•The address specified here must be within the range of the data memory area available with each microcomputer model.

An error results if the input one is not a hexadecimal number or a valid symbol.

Error : invalid value

(no such symbol / symbol type error)

An error results if the limit is exceeded.

Error : Address out of range, use 0-0xFFFF

•The watch data addresses are set in units of 4 words. A warning results if you specify an address that

is outside the 4-word boundary, with your specified address rounded down to a multiple of 4.

Example: >dw↵

Address1 = 0000

:0↵

 

Address2 = 0004

:10↵

 

Address3 = 0008

:15↵

... Illegal address

Address4 = 000c

:19↵

... Illegal address

Warning : round

down to multiple of 4

Address1 =

0

 

 

Address2 =

10

 

 

Address3 =

14

 

 

>

 

 

 

170

EPSON

S5U1C63000A MANUAL

 

 

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