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MPLAB IDE Windows

12.7.3 Hardware Stack Window FAQ

How do I:

Understand the Return Address information?

See Section 12.7.1 “Hardware Stack Window Display”

Pop the stack?

Click on the right mouse button in the window to open a menu. Select Pop Stack.

Set Top-of-Stack (TOS)?

Click on the right mouse button in the window to open a menu. Select Set Top-of-Stack.

12.8 PROGRAM MEMORY WINDOW

The Program Memory window displays locations in the range of program memory for

the currently selected processor. If external program memory is supported by the

selected device and enabled, it will also appear in the Program Memory window.

• Program Memory Window Display

• Program Memory Window Menu

• Program Memory Window FAQ

12.8.1 Program Memory Window Display

You may change the way opcodes are displayed in the program memory window by

clicking on one of the buttons on the bottom of the window:

• Opcode Hex

• Machine or Symbolic

• PSV Mixed (dsPIC DSC/PIC24 devices only)

• PSV Data (dsPIC DSC/PIC24 devices only)

12.8.1.1 OPCODE HEX

This format displays program memory information as hex code. The window will have

the following columns:

• Address – Hexadecimal address of the opcode in the next column.

• Opcode Blocks – Hexadecimal opcode, shown in 2- or 3-byte blocks. For most

PICmicro MCUs these blocks represent words. For PIC18CXXX devices, the

blocks represent 2 bytes. For dsPIC DSC devices, the blocks represent 3 bytes.

The opcode block that is highlighted represents the current location of the

program counter.

• ASCII – ASCII representation of the corresponding line of opcode.

12.8.1.2 MACHINE OR SYMBOLIC

Machine format displays disassembled hex code with no symbolic information.

Symbolic format displays disassembled hex code with symbols. The window will have

the following columns:

• Debug Info – Information useful for debugging. A pointer shows the current

location of the program counter.

• Line – Reference line number

• Address – Opcode hexadecimal address.

• Opcode – Hexadecimal opcode, shown in 2- or 3-byte blocks. For most PICmicro

MCUs these blocks represent words. For PIC18CXXX devices, the blocks

represent 2 bytes. For dsPIC DSC devices, the blocks represent 3 bytes.