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- ( what.s: description of the functions of a word)
- ( usage: what <name>)
-
- hex macros
-
- : what { 5 regs cfa ffa nfa pfa length }
-
- cr head to cfa
- cfa 5 - -1 traverse to nfa
- cfa 4- to ffa cfa 4+ to pfa
-
- nfa id. [ascii] : emit
- nfa c@ 40 and 0= if ." not " then
- ." immediate" cr
-
- ffa w@ 3ff and to length
- ." code length in bytes: "
- length if length 1+ 2* . else ." not specified" then cr
-
- ffa c@ f8 and
- case
- 20 of " no edges expected and 1 returned" endof
- 80 of " 1 edge expected and none returned" endof
- 0a0 of " 1 edge expected and 1 returned" endof
- 0b0 of " 1 edge exected and 2 returned" endof
- 0f0 of " 2 edges expected and 2 returned" endof
- 0e0 of " 2 edges expected and 1 returned" endof
- 0e8 of " 2 edges expected and a test result returned" endof
- 0a8 of " 1 edge expected and a test result returned" endof
- 0 of " no edges specified" endof
- " unclassified edge specification" ( default)
- endcase type ( the message) cr
-
- ffa 2+ w@
- case
- 0 of " no POP specified" endof
- 0ffff of " no optimisation of leading edge" endof
- 0fffe of " no optimisation of leading edge" endof
- 2d00 of " the top edge is POP D0" endof
- 2d08 of " the top edge if POP A0" endof
- " unclassified POP expected" ( default)
- endcase type cr
-
- ." code or data address is " pfa @ os> . cr
-
- ;
-
- decimal
-