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decoder.isa:

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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
This commit is contained in:
Korey Sewell
2006-05-10 08:33:52 -04:00
parent 01304f8935
commit 5aa47cdbd9
1 changed files with 146 additions and 50 deletions
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196
arch/mips/isa/decoder.isa
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@@ -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);
}});
}
}
}