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Clean up MsbRoutingCell

This commit is contained in:
Lofty 2025-07-01 11:48:48 +01:00
parent 012f78c9e3
commit 77311a8cdd
1 changed files with 15 additions and 13 deletions
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26
himbaechel/uarch/gatemate/pack_mult.cc
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@ -261,23 +261,25 @@ MultCell::MultCell(CellInfo *lower, CellInfo *upper, IdString name, bool is_msb)
MsbRoutingCell::MsbRoutingCell(CellInfo *lower, CellInfo *upper, IdString name) : lower{lower}, upper{upper}
{
lower->params[id_INIT_L02] = Property(LUT_ONE, 4);
lower->params[id_INIT_L03] = Property(LUT_ONE, 4);
lower->params[id_INIT_L11] = Property(LUT_ZERO, 4);
lower->params[id_INIT_L20] = Property(LUT_D1, 4); // L11
lower->params[id_INIT_L30] = Property(LUT_ONE, 4);
lower->params[id_INIT_L02] = Property(LUT_ZERO, 4); // (unused)
lower->params[id_INIT_L03] = Property(LUT_ZERO, 4); // (unused)
lower->params[id_INIT_L11] = Property(LUT_ZERO, 4); // (unused)
lower->params[id_INIT_L20] = Property(LUT_ZERO, 4); // (unused)
lower->params[id_INIT_L30] = Property(LUT_ONE, 4); // zero -> COMP_OUT (L30 is inverted)
upper->params[id_INIT_L00] = Property(LUT_D1, 4); // PINY1
upper->params[id_INIT_L01] = Property(LUT_ZERO, 4); // (unused)
upper->params[id_INIT_L10] = Property(LUT_OR, 4);
upper->params[id_INIT_L10] = Property(LUT_D0, 4); // L00 -> COMB2OUT
upper->params[id_C_I1] = Property(1, 1); // PINY1 for L00
upper->params[id_C_SELX] = Property(1, 1);
upper->params[id_C_SEL_P] = Property(1, 1);
upper->params[id_C_CX_I] = Property(1, 1);
upper->params[id_C_PX_I] = Property(1, 1);
upper->params[id_C_PY1_I] = Property(1, 1);
upper->params[id_C_PY2_I] = Property(1, 1);
upper->params[id_C_SELX] = Property(1, 1); // COMB2OUT -> CX_VAL; PINY1 -> PX_VAL
upper->params[id_C_SELY1] = Property(0, 1); // COMP_OUT -> PY1_VAL
upper->params[id_C_SELY2] = Property(0, 1); // COMP_OUT -> PY2_VAL
upper->params[id_C_SEL_P] = Property(1, 1); // PINY1 -> PX_VAL; COMP_OUT -> PY1_VAL; COMP_OUT -> PY2_VAL
upper->params[id_C_CX_I] = Property(1, 1); // CX_VAL -> COUTX
upper->params[id_C_PX_I] = Property(1, 1); // PX_VAL -> POUTX
upper->params[id_C_PY1_I] = Property(1, 1); // PY1_VAL -> POUTY1
upper->params[id_C_PY2_I] = Property(1, 1); // PY2_VAL -> POUTY2
upper->params[id_C_O2] = Property(0b11, 2); // COMB2 -> OUT2
}