asm02.doc

Usage:
  asm02 [options] filename

Command line options:
     -1805        - Enable 1804/5/6 instructions
     -l           - Show listing
     -L           - Generate .lst file
     -s           - Show Symbols
     -Dname       - Define name with value '1'
     -Dname=value - Define name with specified value

Preprocessor
  #include file       - Include specified file
  #define name        - Define name as '1'
  #define name string - Define name as specified string
  #ifdef name         - Condition if name is defined
  #ifndef name        - Condition if name is not defined
  #if expr            - Condition of expr evaluates non-zero
  #else               - Else of #ifdef/#ifndef/#if
  #endif              - End if #ifdef/#ifndef/#if
  #error message      - Display message and increment error count

  note: #define substitution on source lines does occur

Assembler directives:
  .1805        - Enable 1805 instructions
  .align word  - Align address on word boundary (2 bytes)
  .align dword - Align address on double word boundary (4 bytes)
  .align qword - Align address on quad word boundary (8 bytes)
  .align para  - Align address on paragraph boundary (16 bytes)
  .align 32    - Align address on 32-byte boundary
  .align 64    - Align address on 64-byte boundary
  .align 128   - Align address on 128-byte boundary
  .align page  - Align address on page boundary (256 bytes)
  .list        - Enable show list
  .sym         - Show Symbols

Pseudo Ops:
  ORG nnnn     - Set assembly address to nnnn
  DB n,n,..    - Define bytes
  DW nn,nn,..  - Define words
  DS nn        - Define storage
  END nnnn     - End assembly and set starting address
  EQU nnnn     - Equate label to nnnn
  PUBLIC sym   - Declare sym as a public symbol
  EXTRN sym    - Declare sym as external symbol
  VER          - Build standard Elf/OS VER header
  EVER         - Build extended Elf/OS VER header
  EEVER        - Build enhanced Elf/OS VER header
  PROC name    - Begin proc assembly
  ENDP         - End proc assembly
  CALL nnnn    - Assembles as 'SEP R4  DW nnnn'
  RTN          - Assembles as 'SEP R5'
  PUSH n       - Push 16-bit register n
  POP n        - Pop 16-bit register n

Evaluator variables:
  [month]      - Build month
  [day]        - Build day
  [year]       - Build year
  [hour]       - Build hour
  [minute]     - Build minute
  [second]     - Build second
  [build]      - Build number

Expression evaluator terms:
  nn           - Decimal number
  %nn          - Binary number
  $nn          - Hex number
  $            - Current assembly address
  'c'          - ASCII value of character
  label        - Value of label
  Rn           - n=0-15, a-f
  HIGH nnnn    - High byte of value
  LOW nnnn     - Low byte of value
  SGN(expr)    - Sign of expression
  ABS(expr)    - Absolute value of expression
  ~nnn         - Invert bits of n

Expression operators:
    + - Addition
    - - Subtraction
    * - Multiplication
    / - Division
    % - Modulo
   << - shift left
   >> - shift right
    > - Greater than
   >= - Greater or equal
    < - Less than
   <= - Less or equal
    = - equal to
   == - Equal to
   <> - Not equal to
   != - Not equal to
    & - And
   && - And
    | - Or
   || - Or
    ^ - Xor
    . - byte selector

Operator precedence:
  LOW  HIGH  SGN  ABS
  .
  / % *
  + -
  << >>
  & | ^ ~
  = == <> != > >= < <=
  && ||

Precedence can be altered with the use of parenthesis