i'm getting the following error:

push arg2
error: undefined symbol.


for the following macro:

[
;********************************************************************
; strCat
; desc: concatenate strings = arg1 + arg2
; args: arg1 - string to be concatenated to
; arg2 - string to concatenate
; ret: arg1 = concatenated string
; error: n/a
;********************************************************************
macro strCat arg1,arg2
{
push TEMP_SIZE
push arg1
push TEXT_SIZE
push arg2
call str.cat
jc fasmError
mov [arg1],eax
}
]

i've done lots of testing but can't put my finger on the problem.

can someone help?
thanks,
bob k.

I think the macro itself has to be defined before arg2 is. (Just an educated guess.)

the macro is defined first. it's part of an include file.

macro looks allright. show us code that uses that macro.

i bet you are doing this:


so arg="abcde", and it results to which is not valid instruction

format PE console

include 'include/win32ax.inc'

SYSTEM equ win32

include 'include/fasmlib/include/fasm/fasmlib-src.inc'
include 'k2mMacros.inc'
include 'k2mProcedures.inc'
include 'k2wMacros.inc'

PROMPT equ 'k2-m> '
TEMP_SIZE = 512
TEXT_SIZE = 1024

.data

k2ExitCode db '0',0 ;used when exiting - '0' no error, 1 - error
_char db 'char: ',0
_error db 'fasm error: ',0
_prompt db 'k2-m> ',0
x1 db '',0

x dd 'i',0 ;temporary storage that can be reused
x2 dd '/',0

IncludeIData
IncludeUData

text rb TEXT_SIZE


.code

start:

; initialize modules
initialize

beginLoop:

; display prompt
emit _prompt

; get single character
getChar x
push [x]
call isAlpha
jc endLoop

; concatenate string
strCat x,_cat

; display string
emit [x]



endLoop:

; unititialize modules
unInitialize

; exit without error
exitProcess k2ExitCode


exp:

expected [x]

.end start


fasmError:
; eax holds fasmError code
; ebx = text of fasmError code in eax
push eax
call err.text
mov ebx,eax

; display 'Error: '
push _error
push stream.stderr
call text.write

; display fasmError message
push ebx
push stream.stderr
call text.write

; unitialize modules
unInitialize

; exit with code '1'
mov [k2ExitCode],1
exitProcess k2ExitCode
][/code]

well... where is the problem? The symbol "_cat" is not defined. Exactly what error message says.

talk about obvious! that was it. my apologies for not being more thorough. sometimes i can't see the forest for the trees...

bob k.