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| author | Steve Reinhardt <stever@eecs.umich.edu> | 2006-12-17 23:09:36 -0800 |
|---|---|---|
| committer | Steve Reinhardt <stever@eecs.umich.edu> | 2006-12-17 23:09:36 -0800 |
| commit | d19d7aa8a55cd4413ab00de69deb237d89d5ef4a (patch) | |
| tree | db697d8110e815ed928fac3cf674ff0bb0220e0f /src/arch/mips/isa | |
| parent | 968048f56a5f866b267ad9961cbe8d16788bcc89 (diff) | |
| download | gem5-d19d7aa8a55cd4413ab00de69deb237d89d5ef4a.tar.xz | |
Minor cleanup of new snippet/subst code.
--HG--
extra : convert_revision : d81e0d1356f3433e8467e407d66d4afb95614748
Diffstat (limited to 'src/arch/mips/isa')
| -rw-r--r-- | src/arch/mips/isa/decoder.isa | 39 | ||||
| -rw-r--r-- | src/arch/mips/isa/formats/int.isa | 7 |
2 files changed, 21 insertions, 25 deletions
diff --git a/src/arch/mips/isa/decoder.isa b/src/arch/mips/isa/decoder.isa index d65e3eb94..12f36c449 100644 --- a/src/arch/mips/isa/decoder.isa +++ b/src/arch/mips/isa/decoder.isa @@ -154,19 +154,20 @@ decode OPCODE_HI default Unknown::unknown() { 0x3: decode FUNCTION_LO { format HiLoOp { - 0x0: mult({{ val = Rs.sd * Rt.sd; }}); - 0x1: multu({{ val = Rs.ud * Rt.ud; }}); - } - - format HiLoMiscOp { - 0x2: div({{ if (Rt.sd != 0) { - HI = Rs.sd % Rt.sd; - LO = Rs.sd / Rt.sd; + 0x0: mult({{ int64_t val = Rs.sd * Rt.sd; }}); + 0x1: multu({{ uint64_t val = Rs.ud * Rt.ud; }}); + 0x2: div({{ int64_t val; + if (Rt.sd != 0) { + int64_t hi = Rs.sd % Rt.sd; + int64_t lo = Rs.sd / Rt.sd; + val = (hi << 32) | lo; } }}); - 0x3: divu({{ if (Rt.ud != 0) { - HI = Rs.ud % Rt.ud; - LO = Rs.ud / Rt.ud; + 0x3: divu({{ uint64_t val; + if (Rt.ud != 0) { + uint64_t hi = Rs.ud % Rt.ud; + uint64_t lo = Rs.ud / Rt.ud; + val = (hi << 32) | lo; } }}); } @@ -950,17 +951,17 @@ decode OPCODE_HI default Unknown::unknown() { }}); format HiLoOp { - 0x0: madd({{ val = ((int64_t) HI << 32 | LO) + - (Rs.sd * Rt.sd); + 0x0: madd({{ int64_t val = ((int64_t) HI << 32 | LO) + + (Rs.sd * Rt.sd); }}); - 0x1: maddu({{ val = ((uint64_t) HI << 32 | LO) + - (Rs.ud * Rt.ud); + 0x1: maddu({{ uint64_t val = ((uint64_t) HI << 32 | LO) + + (Rs.ud * Rt.ud); }}); - 0x4: msub({{ val = ((int64_t) HI << 32 | LO) - - (Rs.sd * Rt.sd); + 0x4: msub({{ int64_t val = ((int64_t) HI << 32 | LO) - + (Rs.sd * Rt.sd); }}); - 0x5: msubu({{ val = ((uint64_t) HI << 32 | LO) - - (Rs.ud * Rt.ud); + 0x5: msubu({{ uint64_t val = ((uint64_t) HI << 32 | LO) - + (Rs.ud * Rt.ud); }}); } } diff --git a/src/arch/mips/isa/formats/int.isa b/src/arch/mips/isa/formats/int.isa index e9b096f56..2f131f6d9 100644 --- a/src/arch/mips/isa/formats/int.isa +++ b/src/arch/mips/isa/formats/int.isa @@ -240,11 +240,6 @@ def format IntImmOp(code, *opt_flags) {{ }}; def format HiLoOp(code, *opt_flags) {{ - if '.sd' in code: - code = 'int64_t ' + code - elif '.ud' in code: - code = 'uint64_t ' + code - code += 'HI = val<63:32>;\n' code += 'LO = val<31:0>;\n' @@ -260,7 +255,7 @@ def format HiLoMiscOp(code, *opt_flags) {{ header_output = BasicDeclare.subst(iop) decoder_output = BasicConstructor.subst(iop) decode_block = BasicDecode.subst(iop) - exec_output = HiLoExecute.subst(iop) + exec_output = BasicExecute.subst(iop) }}; |