DZ80/D48 Addendum to D52 Disassembler User's Manual

Z80 and 8048 Disassemblers for Linux and Windows
GNU General Public License Version 3
Copyright 2007 by Jeffery L. Post
j_post <AT> pacbell <DOT> net
Hosted on www.8052.com
Version 3.4.1 - August, 2007

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This documentation contains information regarding the differences between D52, DZ80 and D48. Please see the D52 documentation (d52manual.html) for a description of the features common to all three disassemblers.

### TABLE OF CONTENTS

- Introduction
- Command Line Options
  C option - disassemble CP/M file (DZ80)
  80 option - disassemble 8080 code (DZ80)
  85 option - disassemble 8085 code (DZ80)
  1 option - disassemble 8041 code (D48)
- Control File Directives - define interpretation of disassembly data
  M directive - define name for bit addressable memory

#### Introduction

DZ80 (Z80 disassembler) and D48 (8048 disassembler) are very much like the 8052 disassembler D52. This document describes the differences between D52 and the Z80 and 8048 disassemblers.

#### Command Line Options

The following D52 options do not apply to DZ80 or D48:
I option - add include pseudo-op for sfr52.inc header file.
K option - disassemble for Keil A51.
The T option (trace and analyze code) is still experimental in DZ80, and does not exist at all in D48.

#### C Option (disassemble CP/M .com file - DZ80)

Disassembles a CP/M .com executable file beginning at address 100H. Use of this option will cause DZ80 to look for a file with a .com extension, as opposed to a .bin or .hex extension. This option also sets the offset to 100H without the need to do so with the -x option. You do not need to use the -c option if you specify a filename with a '.com' extension (ie: dz80 program.com). This option is compatible withe the -80 and -85 options.

#### 80 Option (disassemble 8080 code - DZ80)

Disassembles code using 8080 opcodes instead of Z80 opcodes.

#### 85 Option (disassemble 8085 code - DZ80)

Disassembles code using 8085 opcodes instead of Z80 opcodes. The only difference between -80 and -85 is that the 8085 has two additional opcodes: rim and sim, which will be treated as invalid with the -80 option.

#### 1 Option (disassemble 8041 code - D48)

Disassembles code using 8041 opcodes instead of 8048 opcodes. (Note that this is the digit 1, not the letter L.)

#### Control File Directives

The following control file directives do not apply to DZ80 or D48:
F directive - modify SFR name.
K directive - modify SFR bit name.
M directive - modify memory location name (different meaning in D48).
R directive - modify register name (used in D48, but not DZ80).

#### M Directive (force memory bank selection - D48)

Forces code to be disassembled as if a sel mb0 or sel mb1 instruction had been encountered, regardless of the actual state of the memory bank selection.
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