$ (cd ~/proj/nasm/; git describe)
nasm-2.15.05-118-g5368e457
$ newnasm -v
NASM version 2.16rc0 compiled on Mar 24 2021
$ cat test2.asm

%idefine words(b)       ((b)+1>>1)
%idefine fromwords(w)           ((w)<<1)

LOADCMDLINE_size equ 256
%assign ll fromwords(words(LOADCMDLINE_size))
%assign mm LOADCMDLINE_size
%assign nn (words(LOADCMDLINE_size))
%assign oo fromwords(nn)

dw ll           ; expected 0100h
dw mm           ; expected 0100h
dw nn           ; expected 0080h
dw oo           ; expected 0100h
$ newnasm test2.asm -l /dev/stderr
     1
     2                                  %idefine words(b)       ((b)+1>>1)
     3                                  %idefine fromwords(w)           ((w)<<1)
     4
     5                                  LOADCMDLINE_size equ 256
     6                                  %assign ll fromwords(words(LOADCMDLINE_size))
     7                                  %assign mm LOADCMDLINE_size
     8                                  %assign nn (words(LOADCMDLINE_size))
     9                                  %assign oo fromwords(nn)
    10
    11 00000000 4000                    dw ll           ; expected 0100h
    12 00000002 0001                    dw mm           ; expected 0100h
    13 00000004 8000                    dw nn           ; expected 0080h
    14 00000006 4000                    dw oo           ; expected 0100h
$ 

$ perl -pe 's/^\%assign\s+(\S+)\s+/$1 equ /' test2.asm > test3.asm
$ cat test3.asm

%idefine words(b)       ((b)+1>>1)
%idefine fromwords(w)           ((w)<<1)

LOADCMDLINE_size equ 256
ll equ fromwords(words(LOADCMDLINE_size))
mm equ LOADCMDLINE_size
nn equ (words(LOADCMDLINE_size))
oo equ fromwords(nn)

dw ll           ; expected 0100h
dw mm           ; expected 0100h
dw nn           ; expected 0080h
dw oo           ; expected 0100h
$ newnasm test3.asm -l /dev/stderr
     1
     2                                  %idefine words(b)       ((b)+1>>1)
     3                                  %idefine fromwords(w)           ((w)<<1)
     4
     5                                  LOADCMDLINE_size equ 256
     6                                  ll equ fromwords(words(LOADCMDLINE_size))
     7                                  mm equ LOADCMDLINE_size
     8                                  nn equ (words(LOADCMDLINE_size))
     9                                  oo equ fromwords(nn)
    10
    11 00000000 0001                    dw ll           ; expected 0100h
    12 00000002 0001                    dw mm           ; expected 0100h
    13 00000004 8000                    dw nn           ; expected 0080h
    14 00000006 0001                    dw oo           ; expected 0100h
$ 
 
nasm$ git diff
diff --git a/asm/preproc.c b/asm/preproc.c
index d1b9b31b..cb1669da 100644
--- a/asm/preproc.c
+++ b/asm/preproc.c
@@ -1613,7 +1613,7 @@ static Token *tokenize(const char *line)
            case '<':
                if (*p == '<') {
                    p++;
-                    type = TOKEN_SHR;
+                    type = TOKEN_SHL;
                    if (*p == '<')
                        p++;
                } else if (*p == '=') {
nasm$