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Minor unpacking cleanup

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This commit is contained in:
David Harris 2021-07-22 17:52:37 -04:00
parent 551e3491af
commit 98660e0d19
1 changed files with 7 additions and 7 deletions
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14
wally-pipelined/src/fpu/unpacking.sv
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@ -25,9 +25,9 @@ module unpacking (
assign YSgnE = FmtE ? Y[63] : Y[31];
assign ZSgnE = FmtE ? Z[63] : Z[31];
assign XExpE = FmtE ? X[62:52] : {X[30], {3{~X[30]&~XExpZero|XExpMaxE}}, X[29:23]};
assign YExpE = FmtE ? Y[62:52] : {Y[30], {3{~Y[30]&~YExpZero|YExpMaxE}}, Y[29:23]};
assign ZExpE = FmtE ? Z[62:52] : {Z[30], {3{~Z[30]&~ZExpZero|ZExpMaxE}}, Z[29:23]};
assign XExpE = FmtE ? X[62:52] : {X[30], {3{~X[30] & XExpNonzero | XExpMaxE}}, X[29:23]};
assign YExpE = FmtE ? Y[62:52] : {Y[30], {3{~Y[30] & YExpNonzero | YExpMaxE}}, Y[29:23]};
assign ZExpE = FmtE ? Z[62:52] : {Z[30], {3{~Z[30] & ZExpNonzero | ZExpMaxE}}, Z[29:23]};
/* assign XExpE = FmtE ? X[62:52] : {3'b0, X[30:23]}; // *** maybe convert to full number of bits here?
assign YExpE = FmtE ? Y[62:52] : {3'b0, Y[30:23]};
assign ZExpE = FmtE ? Z[62:52] : {3'b0, Z[30:23]};*/
@ -40,10 +40,6 @@ module unpacking (
assign YExpNonzero = FmtE ? |Y[62:52] : |Y[30:23];
assign ZExpNonzero = FmtE ? |Z[62:52] : |Z[30:23];
assign XManE = {XExpNonzero, XFracE};
assign YManE = {YExpNonzero, YFracE};
assign ZManE = {ZExpNonzero, ZFracE};
assign XExpZero = ~XExpNonzero;
assign YExpZero = ~YExpNonzero;
assign ZExpZero = ~ZExpNonzero;
@ -52,6 +48,10 @@ module unpacking (
assign YFracZero = ~|YFracE;
assign ZFracZero = ~|ZFracE;
assign XManE = {XExpNonzero, XFracE};
assign YManE = {YExpNonzero, YFracE};
assign ZManE = {ZExpNonzero, ZFracE};
assign XExpMaxE = FmtE ? &X[62:52] : &X[30:23];
assign YExpMaxE = FmtE ? &Y[62:52] : &Y[30:23];
assign ZExpMaxE = FmtE ? &Z[62:52] : &Z[30:23];