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include defs
# ctomn --- translate ASCII control character to mnemonic string
integer function ctomn (c, rep)
character c, rep (4)
integer i
integer length
character mntext (136) # 4 chars/mnemonic; 32 control chars + SP + DEL
data mntext / _
BIGN, BIGU, BIGL, EOS,
BIGS, BIGO, BIGH, EOS,
BIGS, BIGT, BIGX, EOS,
BIGE, BIGT, BIGX, EOS,
BIGE, BIGO, BIGT, EOS,
BIGE, BIGN, BIGQ, EOS,
BIGA, BIGC, BIGK, EOS,
BIGB, BIGE, BIGL, EOS,
BIGB, BIGS, EOS, EOS,
BIGH, BIGT, EOS, EOS,
BIGL, BIGF, EOS, EOS,
BIGV, BIGT, EOS, EOS,
BIGF, BIGF, EOS, EOS,
BIGC, BIGR, EOS, EOS,
BIGS, BIGO, EOS, EOS,
BIGS, BIGI, EOS, EOS,
BIGD, BIGL, BIGE, EOS,
BIGD, BIGC, DIG1, EOS,
BIGD, BIGC, DIG2, EOS,
BIGD, BIGC, DIG3, EOS,
BIGD, BIGC, DIG4, EOS,
BIGN, BIGA, BIGK, EOS,
BIGS, BIGY, BIGN, EOS,
BIGE, BIGT, BIGB, EOS,
BIGC, BIGA, BIGN, EOS,
BIGE, BIGM, EOS, EOS,
BIGS, BIGU, BIGB, EOS,
BIGE, BIGS, BIGC, EOS,
BIGF, BIGS, EOS, EOS,
BIGG, BIGS, EOS, EOS,
BIGR, BIGS, EOS, EOS,
BIGU, BIGS, EOS, EOS,
BIGS, BIGP, EOS, EOS,
BIGD, BIGE, BIGL, EOS/
i = mod (max(c,0), 128)
if (0 <= i & i <= 32) # non-printing character or space
call scopy (mntext, 4 * i + 1, rep, 1)
else if (i == 127) # rubout (DEL)
call scopy (mntext, 133, rep, 1)
else { # printing character
rep (1) = c
rep (2) = EOS
}
return (length (rep))
end
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