diff options
Diffstat (limited to 'arch/mips/isa/formats/util.isa')
-rw-r--r-- | arch/mips/isa/formats/util.isa | 26 |
1 files changed, 26 insertions, 0 deletions
diff --git a/arch/mips/isa/formats/util.isa b/arch/mips/isa/formats/util.isa new file mode 100644 index 000000000..c6dae6783 --- /dev/null +++ b/arch/mips/isa/formats/util.isa @@ -0,0 +1,26 @@ +// -*- mode:c++ -*- + +let {{ +def UncondCtrlBase(name, Name, base_class, npc_expr, flags): + # Declare basic control transfer w/o link (i.e. link reg is R31) + nolink_code = 'NPC = %s;\n' % npc_expr + nolink_iop = InstObjParams(name, Name, base_class, + CodeBlock(nolink_code), flags) + header_output = BasicDeclare.subst(nolink_iop) + decoder_output = BasicConstructor.subst(nolink_iop) + exec_output = BasicExecute.subst(nolink_iop) + + # Generate declaration of '*AndLink' version, append to decls + link_code = 'Ra = NPC & ~3;\n' + nolink_code + link_iop = InstObjParams(name, Name + 'AndLink', base_class, + CodeBlock(link_code), flags) + header_output += BasicDeclare.subst(link_iop) + decoder_output += BasicConstructor.subst(link_iop) + exec_output += BasicExecute.subst(link_iop) + + # need to use link_iop for the decode template since it is expecting + # the shorter version of class_name (w/o "AndLink") + + return (header_output, decoder_output, + JumpOrBranchDecode.subst(nolink_iop), exec_output) +}}; |