mdw@git.distorted.org.uk Git - ssr/blob - StraySrc/Hammer/sh/asm

   1 ;
   2 ; asm.s
   3 ;
   4 ; Assembly of instructions -- Blurg
   5 ;
   6 ; © 1994-1998 Straylight
   7 ;
   8
   9 ;----- Licensing note -------------------------------------------------------
  10 ;
  11 ; This file is part of Straylight's Sledgehammer debugger.
  12 ;
  13 ; Sledgehammer is free software; you can redistribute it and/or modify
  14 ; it under the terms of the GNU General Public License as published by
  15 ; the Free Software Foundation; either version 2, or (at your option)
  16 ; any later version.
  17 ;
  18 ; Sledgehammer is distributed in the hope that it will be useful,
  19 ; but WITHOUT ANY WARRANTY; without even the implied warranty of
  20 ; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  21 ; GNU General Public License for more details.
  22 ;
  23 ; You should have received a copy of the GNU General Public License
  24 ; along with Sledgehammer.  If not, write to the Free Software Foundation,
  25 ; 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
  26
  27 ;----- Overview -------------------------------------------------------------
  28 ;
  29 ; Functions provided:
  30 ;
  31 ;   asm_assemble
  32 ;   asm_register
  33
  34 ; --- asm_assemble ---
  35 ;
  36 ; On entry:     R0 == pointer to the instruction to assemble
  37 ;               R1 == address at which to assemble instruction
  38 ;
  39 ; On exit:      VC and R0 == the assembled instruction
  40 ;               VS and R0 == pointer to an error
  41 ;
  42 ; Use:          Assembles the given insruction, returning the result in
  43 ;               R0. The instruction is NOT placed into the memory location
  44 ;               passed in R1.
  45
  46                 IMPORT  asm_assemble
  47
  48 ; --- asm_register ---
  49 ;
  50 ; On entry:     R8 == pointer into the instruction
  51 ;
  52 ; On exit:      VS and R0 == pointer to error or
  53 ;               VC and R0 == number, R8 updated appropriately
  54 ;
  55 ; Use:          Reads in a register name
  56
  57                 IMPORT  asm_register
  58
  59 ;----- That's all, folks ----------------------------------------------------
  60
  61                 END