1984-07-12 15:18:13 +00:00
|
|
|
.\" $Header$
|
1984-07-12 14:51:48 +00:00
|
|
|
.TH 8080_AS 1
|
|
|
|
.ad
|
|
|
|
.SH NAME
|
|
|
|
8080_as \- assembler for Intel 8080 and 8085
|
|
|
|
.SH SYNOPSIS
|
|
|
|
/usr/em/lib/8080_as [options] argument ...
|
|
|
|
.SH DESCRIPTION
|
|
|
|
This assembler is made with the general framework
|
|
|
|
described in \fIuni_ass\fP(6).
|
|
|
|
.SH SYNTAX
|
|
|
|
.IP registers
|
|
|
|
The 8080 has seven one-byte registers: a, b, c, d, e, h, l;
|
|
|
|
and two two-byte registers: sp and psw, respectively the stack pointer
|
|
|
|
and the processor status word.
|
|
|
|
.IP "addressing modes"
|
|
|
|
.nf
|
|
|
|
.ta 8 16 24 32 40 48
|
|
|
|
syntax meaning
|
|
|
|
|
|
|
|
expr one- or two-byte address or immediate
|
|
|
|
data, depending on the instruction.
|
|
|
|
|
|
|
|
a,b,c,d,e,h,l
|
|
|
|
sp,psw (lower byte) of register
|
|
|
|
|
|
|
|
b,d,h register-pair b-c, d-e, or h-l
|
|
|
|
|
|
|
|
m register-pair h-l is address of
|
|
|
|
(one or two byte) operand
|
|
|
|
.fi
|
|
|
|
.SH "SEE ALSO"
|
|
|
|
uni_ass(1),
|
|
|
|
ack(1),
|
|
|
|
.br
|
|
|
|
System 80/20-4 microcomputer hardware reference manual, 1978 Intel corporation
|