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-rw-r--r--arch/mips/isa/decoder.isa147
1 files changed, 93 insertions, 54 deletions
diff --git a/arch/mips/isa/decoder.isa b/arch/mips/isa/decoder.isa
index e29b57602..54a9f1cb5 100644
--- a/arch/mips/isa/decoder.isa
+++ b/arch/mips/isa/decoder.isa
@@ -222,8 +222,8 @@ decode OPCODE_HI default FailUnimpl::unknown() {
0xB: decode SC {
format BasicOp {
- 0x0: di({{ }});
- 0x1: ei({{ }});
+ 0x0: di({{ Rt.sw = xc->miscRegs.statusReg; statusReg[IE] = 0;}});
+ 0x1: ei({{ Rt.sw = xc->miscRegs.statusReg; statusReg[IE] = 1;}});
}
}
@@ -239,7 +239,7 @@ decode OPCODE_HI default FailUnimpl::unknown() {
0x08: tlbp({{ }});
}
- format BasicOp {
+ format WarnUnimpl {
0x18: eret({{ }});
0x1F: deret({{ }});
0x20: wait({{ }});
@@ -252,12 +252,14 @@ decode OPCODE_HI default FailUnimpl::unknown() {
0x0: decode RS_HI {
0x0: decode RS_LO {
- 0x0: mfc1({{ }});
- 0x2: cfc1({{ }});
- 0x3: mfhc1({{ }});
- 0x4: mtc1({{ }});
- 0x6: ctc1({{ }});
- 0x7: mftc1({{ }});
+ format FloatOp {
+ 0x0: mfc1({{ }});
+ 0x2: cfc1({{ }});
+ 0x3: mfhc1({{ }});
+ 0x4: mtc1({{ }});
+ 0x6: ctc1({{ }});
+ 0x7: mftc1({{ }});
+ }
}
0x1: decode ND {
@@ -315,7 +317,7 @@ decode OPCODE_HI default FailUnimpl::unknown() {
0x2: decode RS_LO {
0x1: decode MOVCF {
- format BasicOp {
+ format FloatOp {
0x0: movf_fmt({{ }});
0x1: movt_fmt({{ }});
}
@@ -347,54 +349,62 @@ decode OPCODE_HI default FailUnimpl::unknown() {
//Table A-15 MIPS32 COP1 Encoding of Function Field When rs=D
0x1: decode RS_HI {
0x0: decode RS_LO {
- 0x0: add_fmt({{ }});
- 0x1: sub_fmt({{ }});
- 0x2: mul_fmt({{ }});
- 0x3: div_fmt({{ }});
- 0x4: sqrt_fmt({{ }});
- 0x5: abs_fmt({{ }});
- 0x6: mov_fmt({{ }});
- 0x7: neg_fmt({{ }});
+ format FloatOp {
+ 0x0: add_fmt({{ }});
+ 0x1: sub_fmt({{ }});
+ 0x2: mul_fmt({{ }});
+ 0x3: div_fmt({{ }});
+ 0x4: sqrt_fmt({{ }});
+ 0x5: abs_fmt({{ }});
+ 0x6: mov_fmt({{ }});
+ 0x7: neg_fmt({{ }});
+ }
}
0x1: decode RS_LO {
//only legal for 64 bit
- format mode64 {
+ format FloatOp64 {
0x0: round_l({{ }});
0x1: trunc_l({{ }});
0x2: ceil_l({{ }});
0x3: floor_l({{ }});
}
- 0x4: round_w({{ }});
- 0x5: trunc_w({{ }});
- 0x6: ceil_w({{ }});
- 0x7: floor_w({{ }});
+ format FloatOp {
+ 0x4: round_w({{ }});
+ 0x5: trunc_w({{ }});
+ 0x6: ceil_w({{ }});
+ 0x7: floor_w({{ }});
+ }
}
0x2: decode RS_LO {
0x1: decode MOVCF {
- 0x0: movf_fmt({{ }});
- 0x1: movt_fmt({{ }});
+ format FloatOp {
+ 0x0: movf_fmt({{ }});
+ 0x1: movt_fmt({{ }});
+ }
}
- format Move {
+ format BasicOp {
0x2: movz({{ if (Rt == 0) Rd = Rs; }});
0x3: movn({{ if (Rt != 0) Rd = Rs; }});
}
- format mode64 {
+ format FloatOp64 {
0x5: recip({{ }});
0x6: rsqrt{{ }});
}
}
0x4: decode RS_LO {
- 0x0: cvt_s({{ }});
- 0x4: cvt_w({{ }});
+ format FloatOp {
+ 0x0: cvt_s({{ }});
+ 0x4: cvt_w({{ }});
+ }
//only legal for 64 bit
- format mode64 {
+ format FloatOp64 {
0x5: cvt_l({{ }});
}
}
@@ -402,16 +412,20 @@ decode OPCODE_HI default FailUnimpl::unknown() {
//Table A-16 MIPS32 COP1 Encoding of Function Field When rs=W
0x4: decode FUNCTION {
- 0x10: cvt_s({{ }});
- 0x10: cvt_d({{ }});
+ format FloatOp {
+ 0x10: cvt_s({{ }});
+ 0x10: cvt_d({{ }});
+ }
}
//Table A-16 MIPS32 COP1 Encoding of Function Field When rs=L1
//Note: "1. Format type L is legal only if 64-bit floating point operations
//are enabled."
0x5: decode FUNCTION_HI {
- 0x10: cvt_s({{ }});
- 0x11: cvt_d({{ }});
+ format FloatOp {
+ 0x10: cvt_s({{ }});
+ 0x11: cvt_d({{ }});
+ }
}
//Table A-17 MIPS64 COP1 Encoding of Function Field When rs=PS1
@@ -419,32 +433,38 @@ decode OPCODE_HI default FailUnimpl::unknown() {
//are enabled. "
0x6: decode RS_HI {
0x0: decode RS_LO {
- 0x0: add_fmt({{ }});
- 0x1: sub_fmt({{ }});
- 0x2: mul_fmt({{ }});
- 0x5: abs_fmt({{ }});
- 0x6: mov_fmt({{ }});
- 0x7: neg_fmt({{ }});
+ format FloatOp64 {
+ 0x0: add_fmt({{ }});
+ 0x1: sub_fmt({{ }});
+ 0x2: mul_fmt({{ }});
+ 0x5: abs_fmt({{ }});
+ 0x6: mov_fmt({{ }});
+ 0x7: neg_fmt({{ }});
+ }
}
0x2: decode RS_LO {
0x1: decode MOVCF {
- 0x0: movf_fmt({{ }});
- 0x1: movt_fmt({{ }});
+ format FloatOp64 {
+ 0x0: movf_fmt({{ }});
+ 0x1: movt_fmt({{ }});
+ }
}
}
0x4: decode RS_LO {
- 0x0: cvt_s_pu({{ }});
+ 0x0: FloatOp64::cvt_s_pu({{ }});
}
0x5: decode RS_LO {
- 0x0: cvt_s_pl({{ }});
- 0x4: pll_s_pl({{ }});
- 0x5: plu_s_pl({{ }});
- 0x6: pul_s_pl({{ }});
- 0x7: puu_s_pl({{ }});
+ format FloatOp64 {
+ 0x0: cvt_s_pl({{ }});
+ 0x4: pll_s_pl({{ }});
+ 0x5: plu_s_pl({{ }});
+ 0x6: pul_s_pl({{ }});
+ 0x7: puu_s_pl({{ }});
+ }
}
}
}
@@ -581,13 +601,32 @@ decode OPCODE_HI default FailUnimpl::unknown() {
0x4: decode FUNCTION_LO {
format BasicOp {
- 0x0: clz({{ }});
- 0x1: clo({{ }});
+ 0x0: clz({{
+ int cnt = 0;
+ int idx = 0;
+ while ( Rs.uw<idx>!= 1) {
+ cnt++;
+ idx--;
+ }
+
+ Rd.uw = cnt;
+ }});
+
+ 0x1: clo({{
+ int cnt = 0;
+ int idx = 0;
+ while ( Rs.uw<idx>!= 0) {
+ cnt++;
+ idx--;
+ }
+
+ Rd.uw = cnt;
+ }});
}
}
0x7: decode FUNCTION_LO {
- 0x7: BasicOp::sdbbp({{ }});
+ 0x7: WarnUnimpl::sdbbp({{ }});
}
}
@@ -595,7 +634,7 @@ decode OPCODE_HI default FailUnimpl::unknown() {
0x7: decode FUNCTION_HI {
0x0: decode FUNCTION_LO {
- format Branch {
+ format WarnUnimpl {
0x1: ext({{ }});
0x4: ins({{ }});
}
@@ -605,8 +644,8 @@ decode OPCODE_HI default FailUnimpl::unknown() {
0x4: decode SA {
format BasicOp {
0x02: wsbh({{ }});
- 0x10: seb({{ }});
- 0x18: seh({{ }});
+ 0x10: seb({{ Rd.sw = /* sext32(Rt<7>,24) | */ Rt<7:0>}});
+ 0x18: seh({{ Rd.sw = /* sext32(Rt<15>,16) | */ Rt<15:0>}});
}
}
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-13 17:00:28 +0000