.\" $Header$ .TH 6800_AS 1 .ad .SH NAME 6800_as \- assembler for Motorola 6800 .SH SYNOPSIS /usr/em/lib/6800_as [options] argument ... .SH DESCRIPTION This assembler is made with the general framework described in \fIuni_ass\fP(6). .SH SYNTAX .IP registers The 6800 has two accumulator registers, A and B. An instruction that refers to accumulator A, has an "a" as last character. In the same way a "b" means that the instruction uses B as accumulator. .IP "addressing modes" .nf .ta 8n 16n 24n 32n 40n 48n syntax meaning (name) #expr with cpx, ldx, lds a 2-byte value, otherwise a 1-byte value (immediate)