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* Help: 'unresolved expression that must be resolved'
@ 2002-09-30  7:22 Michael Chapman
  2002-09-30  7:27 ` Frank Ch. Eigler
  0 siblings, 1 reply; 5+ messages in thread
From: Michael Chapman @ 2002-09-30  7:22 UTC (permalink / raw)
  To: cgen

I have trouble trying to refer to a label in the assembler 
anywhere.

The one line test program

	subroutine: call subroutine

gives me

$ gas test1.asm
test1.asm: Assembler messages:
test1.asm:1: Error: unresolved expression that must be resolved
$ 

What does it mean that an expression is unresolved?

Here below is the relevant parts from my .cpu file.

Any explanations as to how to make this simple example work
would be most welcome.

Thanks.
Mike Chapman


; Opcode fields
(dnf f-call-opcode "call opcode" () 7 6)

; Absolute address, 26-bit (shifted 1 bit to right)
(df f-abs26   "abs26"  (ABS-ADDR) 
    31 26 UINT
    ((value pc) (sra WI value (const 1)))
    ((value pc) (sll WI value (const 1))))

; Instruction operands.
(dnop abs26  "abs26"         ()       h-iaddr f-abs26)

; Instructions
(dni call-abs26 "call abs26"
     (UNCOND-CTI)
     "call $abs26"
     (+ (f-call-opcode #xf3) abs26)
     (set pc abs26)
     ()
)

^ permalink raw reply	[flat|nested] 5+ messages in thread

end of thread, other threads:[~2002-09-30 15:41 UTC | newest]

Thread overview: 5+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2002-09-30  7:22 Help: 'unresolved expression that must be resolved' Michael Chapman
2002-09-30  7:27 ` Frank Ch. Eigler
2002-09-30  7:54   ` Michael Chapman
2002-09-30  8:04     ` Frank Ch. Eigler
2002-09-30  8:41       ` Michael Chapman

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