simple assembler program

["Roman Mashak" <mrv@xxxxxxxx>]

Hello!

    I tried to compile simple assembler program:

#define a 1
#define b 2

.ent main
.global main
main:
        li $3, a
        li $2, b
        addu $4, $2, $3
.end main

I use SDE-lite kit version 5.03.06 and compile with sde-as:
#sde-as test.S -o testtest.S: Assembler messages:
test.S:9: Error: absolute expression required `li'
test.S:10: Error: absolute expression required `li'

When I eliminate #define and use just 'li $3, 1' and so on - everything is
compiled correctly. Where is my problem?

Thanks in advance!

With best regards, Roman Mashak.  E-mail: mrv@xxxxxxxx