Meaning of error message

[MBB]

I'm using Great Cow BASIC (0.99.01 2022-01-27 (Windows 64 bit) : Build 1073).

I wrote this code:

;Chip Settings

chip 18F4550,48

config PLLDIV=1, CPUDIV=OSC1_PLL2, OSC=HSPLL_HS, LVP=OFF, MCLRE=ON ;OFF

dim Bz as long
dim Z_Total as long

dim TwoCompliment, RawWordValueINT as integer
dim Z_Total_Comp as integer

wait 100 ms

'**********

    Twos_Complement_SUB (Z_Total)
      Z_Total_Comp = TwoCompliment
        Bz = 100000 * Abs(Z_Total_Comp)
          Bz = Bz / 65536
            Bz = Bz * 160 ;160 if BR = 80 mT.  80 if BR = 40 mT.

'**********
Sub Twos_Complement_SUB ( RawWordValue as word )

 If (RawWordValue.15 = 1) then
  RawWordValueINT = (RawWordValue XOR 65535) + 1 ;convert twos complement to decimal by xor'ing with 65535 and adding 1
    TwoCompliment = 0 - RawWordValueINT
      Else
        TwoCompliment = [integer]RawWordValue
          End If

'
End Sub
'******

When I compile it I get this error message:

Error: GCASM:Bad ORG overwriting location 0

Does any one know what this means?

[Anobium]

BZ is an assembler instruction. So, you cannot use BZ as a variable.

Change BZ to BZz and it will compile.

If I get time. I will add all assembler instructions to the reserved names.

[MBB]

Thanks!