Optimizing Small Words In-line

Given:

: RDROP ( R: x -- ) R> DROP ;

see rdrop
4CD2 4 #Q A7 ADD 588F
4CD4 RTS 4E75 ok

I compliment Forth Inc on the SwiftX optimizer which produced one ADD
instead of a pop and call to drop.

Given:

: dwb1 2 >R RDROP ;

see dwb1
6E68A 2 #Q D0 MOV 7002
6E68C D0 A7 -) MOV 2F00
6E68E RDROP AB JMP 4EF84CD2 ok

The jump to RDROP is longer than the contents of RDROP. It would be
terrific if the optimizer had an option to in-line small words.

Wish for see dwb1:
        2 #Q D0 MOV
        D0 A7 -) MOV
        4 #Q A7 ADD
        RTS
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Received on Fri May 03 2002 - 13:37:07 PDT