27 lines
1.1 KiB
Text
27 lines
1.1 KiB
Text
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// -*- mode:c++ -*-
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let {{
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def UncondCtrlBase(name, Name, base_class, npc_expr, flags):
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# Declare basic control transfer w/o link (i.e. link reg is R31)
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nolink_code = 'NPC = %s;\n' % npc_expr
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nolink_iop = InstObjParams(name, Name, base_class,
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CodeBlock(nolink_code), flags)
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header_output = BasicDeclare.subst(nolink_iop)
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decoder_output = BasicConstructor.subst(nolink_iop)
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exec_output = BasicExecute.subst(nolink_iop)
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# Generate declaration of '*AndLink' version, append to decls
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link_code = 'Ra = NPC & ~3;\n' + nolink_code
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link_iop = InstObjParams(name, Name + 'AndLink', base_class,
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CodeBlock(link_code), flags)
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header_output += BasicDeclare.subst(link_iop)
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decoder_output += BasicConstructor.subst(link_iop)
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exec_output += BasicExecute.subst(link_iop)
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# need to use link_iop for the decode template since it is expecting
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# the shorter version of class_name (w/o "AndLink")
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return (header_output, decoder_output,
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JumpOrBranchDecode.subst(nolink_iop), exec_output)
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}};
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