From: Korey Sewell <ksewell@umich.edu>
Date: Wed, 10 May 2006 12:33:52 +0000 (-0400)
Subject: decoder.isa:
X-Git-Tag: m5_2.0_beta1~95
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=5aa47cdbd916df34f943d6a3b072ee4eb4c96451;p=gem5.git

decoder.isa:
Now handles instructions for FP compares in single or double recision

arch/mips/isa/decoder.isa:
    Now handles instructions for FP compares in single or double recision

--HG--
extra : convert_revision : eb3a13616e6736bf2d1ead0b816dda8c6099b20f
---

diff --git a/arch/mips/isa/decoder.isa b/arch/mips/isa/decoder.isa
index b9774c6b1..6f1081dab 100644
--- a/arch/mips/isa/decoder.isa
+++ b/arch/mips/isa/decoder.isa
@@ -589,49 +589,54 @@ decode OPCODE_HI default Unknown::unknown() {
                         0x6: decode FUNCTION_LO {
                             format FloatCompareOp {
                                 0x0: c_f_s({{ cond = 0; }});
+
                                 0x1: c_un_s({{
-                                    if (unordered(Rs) || unordered(Rt))
+                                    if (unorderedFP(Fs.uw) || unorderedFP(Ft.uw))
                                         cond = 1;
                                     else
                                         cond = 0;
                                 }});
+
                                 0x2: c_eq_s({{
-                                    if (unordered(Rs) || unordered(Rt))
+                                    if (unorderedFP(Fs.uw) || unorderedFP(Ft.uw))
                                         cond = 0;
                                     else
-                                        cond = (Fs == Ft);
+                                        cond = (Fs.sf == Ft.sf);
                                 }});
+
                                 0x3: c_ueq_s({{
-                                    if (unordered(Rs) || unordered(Rt))
+                                    if (unorderedFP(Fs.uw) || unorderedFP(Ft.uw))
                                         cond = 1;
                                     else
-                                        cond = (Fs == Ft);
+                                        cond = (Fs.sf == Ft.sf);
                                 }});
+
                                 0x4: c_olt_s({{
-                                    if (unordered(Rs) || unordered(Rt))
+                                    if (unorderedFP(Fs.uw) || unorderedFP(Ft.uw))
                                         cond = 0;
                                     else
-                                        cond = ;
-                                     ;
+                                        cond = (Fs.sf < Ft.sf);
                                 }});
+
                                 0x5: c_ult_s({{
-                                    if (unordered(Rs) || unordered(Rt))
+                                    if (unorderedFP(Fs.uw) || unorderedFP(Ft.uw))
                                         cond = 1;
                                     else
-                                        cond = ;
-                                    ;
+                                        cond = (Fs.sf < Ft.sf);
                                 }});
+
                                 0x6: c_ole_s({{
-                                    if (unordered(Rs) || unordered(Rt))
+                                    if (unorderedFP(Fs.uw) || unorderedFP(Ft.uw))
                                         cond = 0;
                                     else
-                                        cond = ;
+                                        cond = (Fs.sf <= Ft.sf);
                                 }});
+
                                 0x7: c_ule_s({{
-                                    if (unordered(Rs) || unordered(Rt))
+                                    if (unorderedFP(Fs.uw) || unorderedFP(Ft.uw))
                                         cond = 1;
                                     else
-                                        cond = ;
+                                        cond = (Fs.sf <= Ft.sf);
                                 }});
                             }
                         }
@@ -639,47 +644,54 @@ decode OPCODE_HI default Unknown::unknown() {
                         0x7: decode FUNCTION_LO {
                             format FloatCompareWithXcptOp {
                                 0x0: c_sf_s({{ cond = 0; }});
+
                                 0x1: c_ngle_s({{
-                                    if (unordered(Rs) || unordered(Rt))
+                                    if (unorderedFP(Fs.uw) || unorderedFP(Ft.uw))
                                         cond = 1;
                                     else
-                                        cond = ;
+                                        cond = 0;
                                   }});
+
                                 0x2: c_seq_s({{
-                                    if (unordered(Rs) || unordered(Rt))
-                                        cond = 1;
+                                    if (unorderedFP(Fs.uw) || unorderedFP(Ft.uw))
+                                        cond = 0;
                                     else
-                                        cond = ;
+                                        cond = (Fs.sf == Ft.sf);
                                   }});
+
                                 0x3: c_ngl_s({{
-                                    if (unordered(Rs) || unordered(Rt))
+                                    if (unorderedFP(Fs.uw) || unorderedFP(Ft.uw))
                                         cond = 1;
                                     else
-                                        cond = ;
+                                        cond = (Fs.sf == Ft.sf);
                                   }});
+
                                 0x4: c_lt_s({{
-                                    if (unordered(Rs) || unordered(Rt))
-                                        cond = 1;
+                                    if (unorderedFP(Fs.uw) || unorderedFP(Ft.uw))
+                                        cond = 0;
                                     else
-                                        cond = ;
+                                        cond = (Fs.sf < Ft.sf);
                                   }});
+
                                 0x5: c_nge_s({{
-                                    if (unordered(Rs) || unordered(Rt))
+                                    if (unorderedFP(Fs.uw) || unorderedFP(Ft.uw))
                                         cond = 1;
                                     else
-                                        cond = ;
+                                        cond = (Fs.sf < Ft.sf);
                                   }});
+
                                 0x6: c_le_s({{
-                                    if (unordered(Rs) || unordered(Rt))
-                                        cond = 1;
+                                    if (unorderedFP(Fs.uw) || unorderedFP(Ft.uw))
+                                        cond = 0;
                                     else
-                                        cond = ;
+                                        cond = (Fs.sf <= Ft.sf);
                                   }});
+
                                 0x7: c_ngt_s({{
-                                    if (unordered(Rs) || unordered(Rt))
+                                    if (unorderedFP(Fs.uw) || unorderedFP(Ft.uw))
                                         cond = 1;
                                     else
-                                        cond = ;
+                                        cond = (Fs.sf <= Ft.sf);
                                   }});
                             }
                         }
@@ -780,28 +792,112 @@ decode OPCODE_HI default Unknown::unknown() {
                         }
 
                         0x6: decode FUNCTION_LO {
-                            format FloatOp {
-                                0x0: c_f_d({{ ; }});
-                                0x1: c_un_d({{ ; }});
-                                0x2: c_eq_d({{ ; }});
-                                0x3: c_ueq_d({{ ; }});
-                                0x4: c_olt_d({{ ; }});
-                                0x5: c_ult_d({{ ; }});
-                                0x6: c_ole_d({{ ; }});
-                                0x7: c_ule_d({{ ; }});
+                            format FloatCompareOp {
+                                0x0: c_f_d({{ cond = 0; }});
+
+                                0x1: c_un_d({{
+                                    if (unorderedFP(Fs.ud) || unorderedFP(Ft.ud))
+                                        cond = 1;
+                                    else
+                                        cond = 0;
+                                }});
+
+                                0x2: c_eq_d({{
+                                    if (unorderedFP(Fs.ud) || unorderedFP(Ft.ud))
+                                        cond = 0;
+                                    else
+                                        cond = (Fs.df == Ft.df);
+                                }});
+
+                                0x3: c_ueq_d({{
+                                    if (unorderedFP(Fs.ud) || unorderedFP(Ft.ud))
+                                        cond = 1;
+                                    else
+                                        cond = (Fs.df == Ft.df);
+                                }});
+
+                                0x4: c_olt_d({{
+                                    if (unorderedFP(Fs.ud) || unorderedFP(Ft.ud))
+                                        cond = 0;
+                                    else
+                                        cond = (Fs.df < Ft.df);
+                                }});
+
+                                0x5: c_ult_d({{
+                                    if (unorderedFP(Fs.ud) || unorderedFP(Ft.ud))
+                                        cond = 1;
+                                    else
+                                        cond = (Fs.df < Ft.df);
+                                }});
+
+                                0x6: c_ole_d({{
+                                    if (unorderedFP(Fs.ud) || unorderedFP(Ft.ud))
+                                        cond = 0;
+                                    else
+                                        cond = (Fs.df <= Ft.df);
+                                }});
+
+                                0x7: c_ule_d({{
+                                    if (unorderedFP(Fs.ud) || unorderedFP(Ft.ud))
+                                        cond = 1;
+                                    else
+                                        cond = (Fs.df <= Ft.df);
+                                }});
                             }
                         }
 
                         0x7: decode FUNCTION_LO {
-                            format FloatOp {
-                                0x0: c_sf_d({{ ; }});
-                                0x1: c_ngle_d({{ ; }});
-                                0x2: c_seq_d({{ ; }});
-                                0x3: c_ngl_d({{ ; }});
-                                0x4: c_lt_d({{ ; }});
-                                0x5: c_nge_d({{ ; }});
-                                0x6: c_le_d({{ ; }});
-                                0x7: c_ngt_d({{ ; }});
+                            format FloatCompareWithXcptOp {
+                                0x0: c_sf_d({{ cond = 0; }});
+
+                                0x1: c_ngle_d({{
+                                    if (unorderedFP(Fs.ud) || unorderedFP(Ft.ud))
+                                        cond = 1;
+                                    else
+                                        cond = 0;
+                                  }});
+
+                                0x2: c_seq_d({{
+                                    if (unorderedFP(Fs.ud) || unorderedFP(Ft.ud))
+                                        cond = 0;
+                                    else
+                                        cond = (Fs.df == Ft.df);
+                                  }});
+
+                                0x3: c_ngl_d({{
+                                    if (unorderedFP(Fs.ud) || unorderedFP(Ft.ud))
+                                        cond = 1;
+                                    else
+                                        cond = (Fs.df == Ft.df);
+                                  }});
+
+                                0x4: c_lt_d({{
+                                    if (unorderedFP(Fs.ud) || unorderedFP(Ft.ud))
+                                        cond = 0;
+                                    else
+                                        cond = (Fs.df < Ft.df);
+                                  }});
+
+                                0x5: c_nge_d({{
+                                    if (unorderedFP(Fs.ud) || unorderedFP(Ft.ud))
+                                        cond = 1;
+                                    else
+                                        cond = (Fs.df < Ft.df);
+                                  }});
+
+                                0x6: c_le_d({{
+                                    if (unorderedFP(Fs.ud) || unorderedFP(Ft.ud))
+                                        cond = 0;
+                                    else
+                                        cond = (Fs.df <= Ft.df);
+                                  }});
+
+                                0x7: c_ngt_d({{
+                                    if (unorderedFP(Fs.ud) || unorderedFP(Ft.ud))
+                                        cond = 1;
+                                    else
+                                        cond = (Fs.df <= Ft.df);
+                                  }});
                             }
                         }
                     }