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added Cel to buf out ack, so that ack can't be removed before the bufs output data is fully invalidated

This commit is contained in:
alexmadison 2022-03-31 15:10:47 +02:00
parent 1d5d4738a2
commit 6dfc941993
1 changed files with 36 additions and 4 deletions
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dataflow_neuro/coders.act
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@ -130,12 +130,24 @@ defproc decoder_2d_dly (avMx1of2<NxC+NyC> in; bool? outx[Nx], outy[Ny],
export template<pint Nx, Ny>
defproc and_grid(bool! out[Nx*Ny]; bool? inx[Nx], iny[Ny]; power supply) {
// Buffer inputs
sigbuf<Ny> xbuf[Nx];
sigbuf<Nx> ybuf[Ny];
(i:Nx:
xbuf[i].in = inx[i];
xbuf[i].supply = supply;
)
(i:Ny:
ybuf[i].in = iny[i];
ybuf[i].supply = supply;
)
AND2_X1 ands[Nx*Ny];
(i:0..Nx*Ny-1:ands[i].vss = supply.vss; ands[i].vdd = supply.vdd;)
(x:0..Nx-1:
(y:0..Ny-1:
ands[x + y*Nx].a = inx[x];
ands[x + y*Nx].b = iny[y];
ands[x + y*Nx].a = xbuf[x].out[y];
ands[x + y*Nx].b = ybuf[y].out[x];
ands[x + y*Nx].y = out[x + y*Nx];
)
)
@ -164,6 +176,18 @@ defproc decoder_2d_hs (avMx1of2<NxC+NyC> in; a1of1 out[Nx*Ny]; bool? reset_B; po
decoder_dualrail<NyC,Ny> d_dr_y(.supply = supply);
(i:0..NyC-1:d_dr_y.in.d[i] = addr_buf.out.d.d[i+NxC];)
// Buffer dualrail decoder outputs
// sigbuf<Ny*2> d_dr_xX[Nx]; // x2 because X req lines go to twice the num of gates
// sigbuf<Nx> d_dr_yX[Ny];
// (i:Nx:
// d_dr_xX[i].in = d_dr_x.out[i];
// d_dr_xX[i].supply = supply;
// )
// (i:Ny:
// d_dr_yX[i].in = d_dr_y.out[i];
// d_dr_yX[i].supply = supply;
// )
// Validity
vtree<NxC> vtree_x (.supply = supply);
vtree<NyC> vtree_y (.supply = supply);
@ -171,7 +195,7 @@ defproc decoder_2d_hs (avMx1of2<NxC+NyC> in; a1of1 out[Nx*Ny]; bool? reset_B; po
(i:0..NxC-1:vtree_x.in.d[i].f = addr_buf.out.d.d[i].f;)
(i:0..NyC-1:vtree_y.in.d[i].t = addr_buf.out.d.d[i+NxC].t;)
(i:0..NyC-1:vtree_y.in.d[i].f = addr_buf.out.d.d[i+NxC].f;)
A_2C_B_X1 C2el(.c1 = vtree_x.out, .c2 = vtree_y.out, .y = addr_buf.out.v,
A_2C_B_X1 valid_Cel(.c1 = vtree_x.out, .c2 = vtree_y.out, .y = addr_buf.out.v,
.vdd = supply.vdd, .vss = supply.vss);
@ -214,7 +238,7 @@ defproc decoder_2d_hs (avMx1of2<NxC+NyC> in; a1of1 out[Nx*Ny]; bool? reset_B; po
// ORtree from all output acks, back to the buffer ack.
// This is instead of the ack that came from the delayed validity trees,
// in decoder_2d_dly.
ortree<Nx> _ortree(.out = addr_buf.out.a, .supply = supply);
ortree<Nx> _ortree(.supply = supply);
INV_X1 out_ack_invs[Nx];
(i:Nx:
out_ack_invs[i].a = _out_acksB[i];
@ -223,6 +247,14 @@ defproc decoder_2d_hs (avMx1of2<NxC+NyC> in; a1of1 out[Nx*Ny]; bool? reset_B; po
_ortree.in[i] = out_ack_invs[i].y;
)
// NEED TO ADD C EL
// SUCH THAT ACK IS LOWERED ONLY WHEN
// VAL IS LOWERED TOO
// i.e. buffer.out.a = Cel(ortree_ack, valid)
A_2C_B_X1 buf_ack_Cel(.c1 = _ortree.out, .c2 = valid_Cel.y, .y = addr_buf.out.a,
.vdd = supply.vdd, .vss = supply.vss);
}