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-rw-r--r--arch/mips/isa/formats/util.isa69
1 files changed, 46 insertions, 23 deletions
diff --git a/arch/mips/isa/formats/util.isa b/arch/mips/isa/formats/util.isa
index c06877b35..db4bf204a 100644
--- a/arch/mips/isa/formats/util.isa
+++ b/arch/mips/isa/formats/util.isa
@@ -1,29 +1,6 @@
// -*- 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)
-
def LoadStoreBase(name, Name, ea_code, memacc_code, mem_flags, inst_flags,
postacc_code = '', base_class = 'Memory',
decode_template = BasicDecode, exec_template_base = ''):
@@ -116,10 +93,56 @@ def LoadStoreBase(name, Name, ea_code, memacc_code, mem_flags, inst_flags,
output exec {{
+using namespace MipsISA;
+
+
/// CLEAR ALL CPU INST/EXE HAZARDS
inline void
clear_exe_inst_hazards()
{
//CODE HERE
}
+
+
+ /// Check "FP enabled" machine status bit. Called when executing any FP
+ /// instruction in full-system mode.
+ /// @retval Full-system mode: NoFault if FP is enabled, FenFault
+ /// if not. Non-full-system mode: always returns NoFault.
+#if FULL_SYSTEM
+ inline Fault checkFpEnableFault(%(CPU_exec_context)s *xc)
+ {
+ Fault fault = NoFault; // dummy... this ipr access should not fault
+ if (!Mips34k::ICSR_FPE(xc->readIpr(MipsISA::IPR_ICSR, fault))) {
+ fault = FloatEnableFault;
+ }
+ return fault;
+ }
+#else
+ inline Fault checkFpEnableFault(%(CPU_exec_context)s *xc)
+ {
+ return NoFault;
+ }
+#endif
+
+ double convert_and_round(float w, int x, int y, int z)
+ {
+ double temp = .34000;
+
+ return temp;
+ }
+
+ enum FPTypes{
+ FP_SINGLE,
+ FP_DOUBLE,
+ FP_LONG,
+ FP_PS_LO,
+ FP_PS_HI,
+ FP_WORD,
+ RND_NEAREST,
+ RND_ZERO,
+ RND_UP,
+ RND_DOWN
+ };
}};
+
+