JML indirect is not handled

[dfgordon]

Merlin 32 will assemble JML ($8000) as 6C 00 80. All other Merlin versions assemble this as DC 00 80.

[fadden]

This is version-specific. I put some notes on https://gist.github.com/fadden/61bab5c9d5fb4732935b6e4843065b15 ; the test example is:

org     $1000
        typ     BIN
        dsk     FOO
        jmp     start       ;v1.0-4c 13 10       v1.2-4c 12 10
        jml     start       ;v1.0-5c 13 10 00    v1.2-dc 12 10    ?!
        jmp     (start)     ;v1.0-6c 13 10       v1.2-6c 12 10
        jmp     [start]     ;v1.0-dc 13 10       v1.2- impossible to decode
        jml     (start)     ;v1.0-6c 13 10       v1.2- impossible to decode
        jml     [start]     ;v1.0-dc 13 10       v1.2- impossible to decode
start   bit     start

The Merlin v1.0 behavior matches ACME, cc65, and 64tass.

The Eyes & Lichty book says (page 459):

Absolute                   JMP addr      4C
Absolute Indirect          JMP (addr)    6C
Absolute Indexed Indirect  JMP (addr,X)  7C
Absolute Long              JMP long      5C
                       (or JML long)
Absolute Indirect Long     JMP [addr]    DC
                       (or JML [addr])