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a2o/dev/verilog/work/fu_cr2.v

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// © IBM Corp. 2020
// Licensed under the Apache License, Version 2.0 (the "License"), as modified by
// the terms below; you may not use the files in this repository except in
// compliance with the License as modified.
// You may obtain a copy of the License at http://www.apache.org/licenses/LICENSE-2.0
//
// Modified Terms:
//
// 1) For the purpose of the patent license granted to you in Section 3 of the
// License, the "Work" hereby includes implementations of the work of authorship
// in physical form.
//
// 2) Notwithstanding any terms to the contrary in the License, any licenses
// necessary for implementation of the Work that are available from OpenPOWER
// via the Power ISA End User License Agreement (EULA) are explicitly excluded
// hereunder, and may be obtained from OpenPOWER under the terms and conditions
// of the EULA.
//
// Unless required by applicable law or agreed to in writing, the reference design
// distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
// WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License
// for the specific language governing permissions and limitations under the License.
//
// Additional rights, including the ability to physically implement a softcore that
// is compliant with the required sections of the Power ISA Specification, are
// available at no cost under the terms of the OpenPOWER Power ISA EULA, which can be
// obtained (along with the Power ISA) here: https://openpowerfoundation.org.
`timescale 1 ns / 1 ns
// FPSCR BIT DEFINITIONS
// -------------- control
// [24] ve
// [25] oe
// [26] ue
// [27] ze
// [28] xe
// [29] non-ieee
// [30:31] rnd_mode 00:nr 01:zr 02:pi 03:ni
//
// the rnd_mode must be read in ex3 of the using op
// the rnd_mode is set in ex4 of the sending op (to_integer only)
// there must be a 2 cycle bubble after update op
//
// set 1 2 3
// read x x 1 2
`include "tri_a2o.vh"
module fu_cr2(
vdd,
gnd,
clk,
rst,
clkoff_b,
act_dis,
flush,
delay_lclkr,
mpw1_b,
mpw2_b,
sg_1,
thold_1,
fpu_enable,
f_cr2_si,
f_cr2_so,
ex1_act,
ex2_act,
ex1_thread_b,
f_dcd_ex7_cancel,
f_fmt_ex2_bop_byt,
f_dcd_ex1_fpscr_bit_data_b,
f_dcd_ex1_fpscr_bit_mask_b,
f_dcd_ex1_fpscr_nib_mask_b,
f_dcd_ex1_mtfsbx_b,
f_dcd_ex1_mcrfs_b,
f_dcd_ex1_mtfsf_b,
f_dcd_ex1_mtfsfi_b,
f_cr2_ex4_thread_b,
f_cr2_ex4_fpscr_bit_data_b,
f_cr2_ex4_fpscr_bit_mask_b,
f_cr2_ex4_fpscr_nib_mask_b,
f_cr2_ex4_mtfsbx_b,
f_cr2_ex4_mcrfs_b,
f_cr2_ex4_mtfsf_b,
f_cr2_ex4_mtfsfi_b,
f_cr2_ex6_fpscr_rd_dat,
f_cr2_ex7_fpscr_rd_dat,
f_cr2_ex2_fpscr_shadow
);
inout vdd;
inout gnd;
input clk;
input rst;
input clkoff_b; // tiup
input act_dis; // ??tidn??
input flush; // ??tidn??
input [1:7] delay_lclkr; // tidn,
input [1:7] mpw1_b; // tidn,
input [0:1] mpw2_b; // tidn,
input sg_1;
input thold_1;
input fpu_enable; //dc_act
input f_cr2_si; // perv
output f_cr2_so; // perv
input ex1_act; // act writes
input ex2_act; // act writes
input [0:3] ex1_thread_b; // thread write
input f_dcd_ex7_cancel;
input [45:52] f_fmt_ex2_bop_byt; //for mtfsf to shadow reg
input [0:3] f_dcd_ex1_fpscr_bit_data_b; //data to write to nibble (other than mtfsf)
input [0:3] f_dcd_ex1_fpscr_bit_mask_b; //enable update of bit within the nibble
input [0:8] f_dcd_ex1_fpscr_nib_mask_b; //enable update of this nibble
input f_dcd_ex1_mtfsbx_b; //fpscr set bit, reset bit
input f_dcd_ex1_mcrfs_b; //move fpscr field to cr and reset exceptions
input f_dcd_ex1_mtfsf_b; //move fpr data to fpscr
input f_dcd_ex1_mtfsfi_b; //move immediate data to fpscr
output [0:3] f_cr2_ex4_thread_b; //scr
output [0:3] f_cr2_ex4_fpscr_bit_data_b; //data to write to nibble (other than mtfsf)
output [0:3] f_cr2_ex4_fpscr_bit_mask_b; //enable update of bit within the nibble
output [0:8] f_cr2_ex4_fpscr_nib_mask_b; //enable update of this nibble
output f_cr2_ex4_mtfsbx_b; //fpscr set bit, reset bit
output f_cr2_ex4_mcrfs_b; //move fpscr field to cr and reset exceptions
output f_cr2_ex4_mtfsf_b; //move fpr data to fpscr
output f_cr2_ex4_mtfsfi_b; //move immediate data to fpscr
output [24:31] f_cr2_ex6_fpscr_rd_dat; //scr
output [24:31] f_cr2_ex7_fpscr_rd_dat; //scr
output [0:7] f_cr2_ex2_fpscr_shadow; //fpic
// end ports
// ENTITY
parameter tiup = 1'b1;
parameter tidn = 1'b0;
wire sg_0;
wire thold_0_b;
wire thold_0;
wire force_t;
wire ex7_th0_act;
wire ex7_th1_act;
wire ex7_th2_act;
wire ex7_th3_act;
wire ex3_act;
wire ex4_act;
wire ex5_act;
wire ex6_act;
wire ex7_act;
wire ex5_mv_to_op;
wire ex6_mv_to_op;
wire ex7_mv_to_op;
wire [0:3] ex2_thread;
wire [0:3] ex3_thread;
wire [0:3] ex4_thread;
wire [0:3] ex5_thread;
wire [0:3] ex6_thread;
wire [0:3] ex7_thread;
(* analysis_not_referenced="TRUE" *)
wire [0:2] act_spare_unused;
//-----------------
wire [0:6] act_so; //SCAN
wire [0:6] act_si;
wire [0:33] ex2_ctl_so; //SCAN
wire [0:33] ex2_ctl_si;
wire [0:24] ex3_ctl_so; //SCAN
wire [0:24] ex3_ctl_si;
wire [0:24] ex4_ctl_so; //SCAN
wire [0:24] ex4_ctl_si;
wire [0:4] ex5_ctl_so; //SCAN
wire [0:4] ex5_ctl_si;
wire [0:4] ex6_ctl_so; //SCAN
wire [0:4] ex6_ctl_si;
wire [0:4] ex7_ctl_so; //SCAN
wire [0:4] ex7_ctl_si;
wire [0:7] shadow0_so; //SCAN
wire [0:7] shadow0_si;
wire [0:7] shadow1_so; //SCAN
wire [0:7] shadow1_si;
wire [0:7] shadow2_so; //SCAN
wire [0:7] shadow2_si;
wire [0:7] shadow3_so; //SCAN
wire [0:7] shadow3_si;
wire [0:7] shadow_byp2_so; //SCAN
wire [0:7] shadow_byp2_si;
wire [0:7] shadow_byp3_so; //SCAN
wire [0:7] shadow_byp3_si;
wire [0:7] shadow_byp4_so; //SCAN
wire [0:7] shadow_byp4_si;
wire [0:7] shadow_byp5_so; //SCAN
wire [0:7] shadow_byp5_si;
wire [0:7] shadow_byp6_so; //SCAN
wire [0:7] shadow_byp6_si;
//-----------------
wire [0:7] shadow0;
wire [0:7] shadow1;
wire [0:7] shadow2;
wire [0:7] shadow3;
wire [0:7] shadow_byp2;
wire [0:7] shadow_byp3;
wire [0:7] shadow_byp4;
wire [0:7] shadow_byp5;
wire [0:7] shadow_byp6;
wire [0:7] shadow_byp2_din;
wire [0:7] ex2_bit_sel;
wire [0:3] ex2_fpscr_bit_data;
wire [0:3] ex2_fpscr_bit_mask;
wire [0:8] ex2_fpscr_nib_mask;
wire ex2_mtfsbx;
wire ex2_mcrfs;
wire ex2_mtfsf;
wire ex2_mtfsfi;
wire [0:3] ex3_fpscr_bit_data;
wire [0:3] ex3_fpscr_bit_mask;
wire [0:8] ex3_fpscr_nib_mask;
wire ex3_mtfsbx;
wire ex3_mcrfs;
wire ex3_mtfsf;
wire ex3_mtfsfi;
wire [0:3] ex4_fpscr_bit_data;
wire [0:3] ex4_fpscr_bit_mask;
wire [0:8] ex4_fpscr_nib_mask;
wire ex4_mtfsbx;
wire ex4_mcrfs;
wire ex4_mtfsf;
wire ex4_mtfsfi;
wire ex2_mv_to_op;
wire ex3_mv_to_op;
wire ex4_mv_to_op;
wire [0:7] ex2_fpscr_data;
wire [0:3] ex1_thread;
wire ex1_rd_sel_0;
wire ex2_rd_sel_0;
wire ex1_rd_sel_1;
wire ex2_rd_sel_1;
wire ex1_rd_sel_2;
wire ex2_rd_sel_2;
wire ex1_rd_sel_3;
wire ex2_rd_sel_3;
wire ex1_rd_sel_byp2;
wire ex2_rd_sel_byp2;
wire ex1_rd_sel_byp3;
wire ex2_rd_sel_byp3;
wire ex1_rd_sel_byp4;
wire ex2_rd_sel_byp4;
wire ex1_rd_sel_byp5;
wire ex2_rd_sel_byp5;
wire ex1_rd_sel_byp6;
wire ex2_rd_sel_byp6;
wire ex1_rd_sel_byp2_pri;
wire ex1_rd_sel_byp3_pri;
wire ex1_rd_sel_byp4_pri;
wire ex1_rd_sel_byp5_pri;
wire ex1_rd_sel_byp6_pri;
wire [0:7] ex2_fpscr_shadow_mux;
wire ex1_thread_match_1;
wire ex1_thread_match_2;
wire ex1_thread_match_3;
wire ex1_thread_match_4;
wire ex1_thread_match_5;
wire [0:3] ex1_fpscr_bit_data;
wire [0:3] ex1_fpscr_bit_mask;
wire [0:8] ex1_fpscr_nib_mask;
wire ex1_mtfsbx;
wire ex1_mcrfs;
wire ex1_mtfsf;
wire ex1_mtfsfi;
wire ex7_cancel;
wire [24:31] ex7_fpscr_rd_dat_no_byp;
////############################################
////# pervasive
////############################################
tri_plat thold_reg_0(
.vd(vdd),
.gd(gnd),
.clk(clk),
.rst(rst),
.flush(flush),
.din(thold_1),
.q(thold_0)
);
tri_plat sg_reg_0(
.vd(vdd),
.gd(gnd),
.clk(clk),
.rst(rst),
.flush(flush),
.din(sg_1),
.q(sg_0)
);
tri_lcbor lcbor_0(
.clkoff_b(clkoff_b),
.thold(thold_0),
.sg(sg_0),
.act_dis(act_dis),
.force_t(force_t),
.thold_b(thold_0_b)
);
////############################################
////# ACT LATCHES
////############################################
tri_rlmreg_p #(.WIDTH(7), .NEEDS_SRESET(0)) act_lat(
.force_t(force_t), // tidn,
.d_mode(tiup),
.delay_lclkr(delay_lclkr[6]), // tidn,
.mpw1_b(mpw1_b[6]), // tidn,
.mpw2_b(mpw2_b[1]), // tidn,
.vd(vdd),
.gd(gnd),
.clk(clk),
.rst(rst),
.thold_b(thold_0_b),
.sg(sg_0),
.act(fpu_enable),
.scout(act_so),
.scin(act_si),
//---------------
.din({ act_spare_unused[0],
act_spare_unused[1],
ex2_act,
ex3_act,
ex4_act,
ex5_act,
ex6_act}),
//-----------------
.dout({ act_spare_unused[0],
act_spare_unused[1],
ex3_act,
ex4_act,
ex5_act,
ex6_act,
ex7_act})
);
assign act_spare_unused[2] = ex1_act; // take this out?
////#############################################
////## ex2 latches
////#############################################
assign ex1_thread[0:3] = (~ex1_thread_b[0:3]);
assign ex1_fpscr_bit_data[0:3] = (~f_dcd_ex1_fpscr_bit_data_b[0:3]);
assign ex1_fpscr_bit_mask[0:3] = (~f_dcd_ex1_fpscr_bit_mask_b[0:3]);
assign ex1_fpscr_nib_mask[0:8] = (~f_dcd_ex1_fpscr_nib_mask_b[0:8]);
assign ex1_mtfsbx = (~f_dcd_ex1_mtfsbx_b);
assign ex1_mcrfs = (~f_dcd_ex1_mcrfs_b);
assign ex1_mtfsf = (~f_dcd_ex1_mtfsf_b);
assign ex1_mtfsfi = (~f_dcd_ex1_mtfsfi_b);
tri_rlmreg_p #(.WIDTH(34)) ex2_ctl_lat(
.force_t(force_t), // tidn,
.d_mode(tiup),
.delay_lclkr(delay_lclkr[1]), // tidn,
.mpw1_b(mpw1_b[1]), // tidn,
.mpw2_b(mpw2_b[0]), // tidn,
.vd(vdd),
.gd(gnd),
.clk(clk),
.rst(rst),
.thold_b(thold_0_b),
.sg(sg_0),
.act(fpu_enable), //ex1_act
.scout(ex2_ctl_so),
.scin(ex2_ctl_si),
//-----------------
.din({ ex1_thread[0:3],
ex1_fpscr_bit_data[0:3],
ex1_fpscr_bit_mask[0:3],
ex1_fpscr_nib_mask[0:8],
ex1_mtfsbx,
ex1_mcrfs,
ex1_mtfsf,
ex1_mtfsfi,
ex1_rd_sel_0,
ex1_rd_sel_1,
ex1_rd_sel_2,
ex1_rd_sel_3,
ex1_rd_sel_byp2_pri,
ex1_rd_sel_byp3_pri,
ex1_rd_sel_byp4_pri,
ex1_rd_sel_byp5_pri,
ex1_rd_sel_byp6_pri}),
//-----------------
.dout({ ex2_thread[0:3],
ex2_fpscr_bit_data[0:3],
ex2_fpscr_bit_mask[0:3],
ex2_fpscr_nib_mask[0:8],
ex2_mtfsbx,
ex2_mcrfs,
ex2_mtfsf,
ex2_mtfsfi,
ex2_rd_sel_0,
ex2_rd_sel_1,
ex2_rd_sel_2,
ex2_rd_sel_3,
ex2_rd_sel_byp2,
ex2_rd_sel_byp3,
ex2_rd_sel_byp4,
ex2_rd_sel_byp5,
ex2_rd_sel_byp6})
);
////#############################################
////## ex3 latches
////#############################################
tri_rlmreg_p #(.WIDTH(25)) ex3_ctl_lat(
.force_t(force_t), // tidn,
.d_mode(tiup),
.delay_lclkr(delay_lclkr[2]), // tidn,
.mpw1_b(mpw1_b[2]), // tidn,
.mpw2_b(mpw2_b[0]), // tidn,
.vd(vdd),
.gd(gnd),
.clk(clk),
.rst(rst),
.thold_b(thold_0_b),
.sg(sg_0),
.act(fpu_enable),//ex2_act
.scout(ex3_ctl_so),
.scin(ex3_ctl_si),
//-----------------
.din({ ex2_thread[0:3],
ex2_fpscr_bit_data[0:3],
ex2_fpscr_bit_mask[0:3],
ex2_fpscr_nib_mask[0:8],
ex2_mtfsbx,
ex2_mcrfs,
ex2_mtfsf,
ex2_mtfsfi}),
//-----------------
.dout({ ex3_thread[0:3],
ex3_fpscr_bit_data[0:3],
ex3_fpscr_bit_mask[0:3],
ex3_fpscr_nib_mask[0:8],
ex3_mtfsbx,
ex3_mcrfs,
ex3_mtfsf,
ex3_mtfsfi})
);
////#############################################
////## ex4 latches
////#############################################
tri_rlmreg_p #(.WIDTH(25)) ex4_ctl_lat(
.force_t(force_t), // tidn,
.d_mode(tiup),
.delay_lclkr(delay_lclkr[3]), // tidn,
.mpw1_b(mpw1_b[3]), // tidn,
.mpw2_b(mpw2_b[0]), // tidn,
.vd(vdd),
.gd(gnd),
.clk(clk),
.rst(rst),
.thold_b(thold_0_b),
.sg(sg_0),
.act(fpu_enable),//ex3_act
.scout(ex4_ctl_so),
.scin(ex4_ctl_si),
//-----------------
.din({ ex3_thread[0:3],
ex3_fpscr_bit_data[0:3],
ex3_fpscr_bit_mask[0:3],
ex3_fpscr_nib_mask[0:8],
ex3_mtfsbx,
ex3_mcrfs,
ex3_mtfsf,
ex3_mtfsfi}),
//-----------------
.dout({ ex4_thread[0:3],
ex4_fpscr_bit_data[0:3],
ex4_fpscr_bit_mask[0:3],
ex4_fpscr_nib_mask[0:8],
ex4_mtfsbx,
ex4_mcrfs,
ex4_mtfsf,
ex4_mtfsfi})
);
assign f_cr2_ex4_thread_b[0:3] = (~ex4_thread[0:3]); //output--
assign f_cr2_ex4_fpscr_bit_data_b[0:3] = (~ex4_fpscr_bit_data[0:3]); //output--
assign f_cr2_ex4_fpscr_bit_mask_b[0:3] = (~ex4_fpscr_bit_mask[0:3]); //output--
assign f_cr2_ex4_fpscr_nib_mask_b[0:8] = (~ex4_fpscr_nib_mask[0:8]); //output--
assign f_cr2_ex4_mtfsbx_b = (~ex4_mtfsbx); //output--
assign f_cr2_ex4_mcrfs_b = (~ex4_mcrfs); //output--
assign f_cr2_ex4_mtfsf_b = (~ex4_mtfsf); //output--
assign f_cr2_ex4_mtfsfi_b = (~ex4_mtfsfi); //output--
tri_rlmreg_p #(.WIDTH(5)) ex5_ctl_lat(
.force_t(force_t), // tidn,
.d_mode(tiup),
.delay_lclkr(delay_lclkr[4]), // tidn,
.mpw1_b(mpw1_b[4]), // tidn,
.mpw2_b(mpw2_b[0]), // tidn,
.vd(vdd),
.gd(gnd),
.clk(clk),
.rst(rst),
.thold_b(thold_0_b),
.sg(sg_0),
.act(fpu_enable),//ex4_act
.scout(ex5_ctl_so),
.scin(ex5_ctl_si),
//-----------------
.din({ ex4_thread[0:3],
ex4_mv_to_op}),
//-----------------
.dout({ ex5_thread[0:3],
ex5_mv_to_op})
);
tri_rlmreg_p #(.WIDTH(5)) ex6_ctl_lat(
.force_t(force_t), // tidn,
.d_mode(tiup),
.delay_lclkr(delay_lclkr[5]), // tidn,
.mpw1_b(mpw1_b[5]), // tidn,
.mpw2_b(mpw2_b[1]), // tidn,
.vd(vdd),
.gd(gnd),
.clk(clk),
.rst(rst),
.thold_b(thold_0_b),
.sg(sg_0),
.act(fpu_enable),//ex5_act
.scout(ex6_ctl_so),
.scin(ex6_ctl_si),
//-----------------
.din({ ex5_thread[0:3],
ex5_mv_to_op}),
//-----------------
.dout({ ex6_thread[0:3],
ex6_mv_to_op})
);
tri_rlmreg_p #(.WIDTH(5)) ex7_ctl_lat(
.force_t(force_t), // tidn,
.d_mode(tiup),
.delay_lclkr(delay_lclkr[6]), // tidn,
.mpw1_b(mpw1_b[6]), // tidn,
.mpw2_b(mpw2_b[1]), // tidn,
.vd(vdd),
.gd(gnd),
.clk(clk),
.rst(rst),
.thold_b(thold_0_b),
.sg(sg_0),
.act(fpu_enable),//ex6_act
.scout(ex7_ctl_so),
.scin(ex7_ctl_si),
//-----------------
.din({ ex6_thread[0:3],
ex6_mv_to_op}),
.dout({ ex7_thread[0:3],
ex7_mv_to_op})
);
assign ex7_cancel = f_dcd_ex7_cancel;
////##############################################
////# read mux for mffs instruction
////##############################################
assign f_cr2_ex6_fpscr_rd_dat[24:31] = ({8{ex6_thread[0]}} & shadow0[0:7]) |
({8{ex6_thread[1]}} & shadow1[0:7]) |
({8{ex6_thread[2]}} & shadow2[0:7]) |
({8{ex6_thread[3]}} & shadow3[0:7]); // output to rounder
assign ex7_fpscr_rd_dat_no_byp[24:31] = ({8{ex7_thread[0]}} & shadow0[0:7]) |
({8{ex7_thread[1]}} & shadow1[0:7]) |
({8{ex7_thread[2]}} & shadow2[0:7]) |
({8{ex7_thread[3]}} & shadow3[0:7]);
assign f_cr2_ex7_fpscr_rd_dat[24:31] = ({8{ex7_mv_to_op}} & shadow_byp6[0:7]) |
({8{(~ex7_mv_to_op)}} & ex7_fpscr_rd_dat_no_byp[24:31]);
////##############################################
////# fpscr write data / merge
////##############################################
assign ex2_bit_sel[0:3] = ex2_fpscr_bit_mask[0:3] & {4{ex2_mv_to_op & ex2_fpscr_nib_mask[6]}};
assign ex2_bit_sel[4:7] = ex2_fpscr_bit_mask[0:3] & {4{ex2_mv_to_op & ex2_fpscr_nib_mask[7]}};
assign ex2_fpscr_data[0:3] = (f_fmt_ex2_bop_byt[45:48] & {4{ex2_mtfsf}}) |
(ex2_fpscr_bit_data[0:3] & {4{(~ex2_mtfsf)}});
assign ex2_fpscr_data[4:7] = (f_fmt_ex2_bop_byt[49:52] & {4{ex2_mtfsf}}) |
(ex2_fpscr_bit_data[0:3] & {4{(~ex2_mtfsf)}});
assign shadow_byp2_din[0:7] = (ex2_fpscr_shadow_mux[0:7] & (~ex2_bit_sel[0:7])) |
(ex2_fpscr_data[0:7] & ex2_bit_sel[0:7]); // may not update all the bits
////##############################################
////# read mux select generation (for pipeline control bits)
////##############################################
assign ex2_mv_to_op = ex2_mtfsbx | ex2_mtfsf | ex2_mtfsfi;
assign ex3_mv_to_op = ex3_mtfsbx | ex3_mtfsf | ex3_mtfsfi;
assign ex4_mv_to_op = ex4_mtfsbx | ex4_mtfsf | ex4_mtfsfi;
assign ex1_thread_match_1 = (ex1_thread[0] & ex2_thread[0]) | (ex1_thread[1] & ex2_thread[1]) | (ex1_thread[2] & ex2_thread[2]) | (ex1_thread[3] & ex2_thread[3]);
assign ex1_thread_match_2 = (ex1_thread[0] & ex3_thread[0]) | (ex1_thread[1] & ex3_thread[1]) | (ex1_thread[2] & ex3_thread[2]) | (ex1_thread[3] & ex3_thread[3]);
assign ex1_thread_match_3 = (ex1_thread[0] & ex4_thread[0]) | (ex1_thread[1] & ex4_thread[1]) | (ex1_thread[2] & ex4_thread[2]) | (ex1_thread[3] & ex4_thread[3]);
assign ex1_thread_match_4 = (ex1_thread[0] & ex5_thread[0]) | (ex1_thread[1] & ex5_thread[1]) | (ex1_thread[2] & ex5_thread[2]) | (ex1_thread[3] & ex5_thread[3]);
assign ex1_thread_match_5 = (ex1_thread[0] & ex6_thread[0]) | (ex1_thread[1] & ex6_thread[1]) | (ex1_thread[2] & ex6_thread[2]) | (ex1_thread[3] & ex6_thread[3]);
assign ex1_rd_sel_byp2 = ex1_thread_match_1 & ex2_mv_to_op;
assign ex1_rd_sel_byp3 = ex1_thread_match_2 & ex3_mv_to_op;
assign ex1_rd_sel_byp4 = ex1_thread_match_3 & ex4_mv_to_op;
assign ex1_rd_sel_byp5 = ex1_thread_match_4 & ex5_mv_to_op;
assign ex1_rd_sel_byp6 = ex1_thread_match_5 & ex6_mv_to_op;
assign ex1_rd_sel_0 = ex1_thread[0] & (~ex1_rd_sel_byp2) & (~ex1_rd_sel_byp3) & (~ex1_rd_sel_byp4) & (~ex1_rd_sel_byp5) & (~ex1_rd_sel_byp6);
assign ex1_rd_sel_1 = ex1_thread[1] & (~ex1_rd_sel_byp2) & (~ex1_rd_sel_byp3) & (~ex1_rd_sel_byp4) & (~ex1_rd_sel_byp5) & (~ex1_rd_sel_byp6);
assign ex1_rd_sel_2 = ex1_thread[2] & (~ex1_rd_sel_byp2) & (~ex1_rd_sel_byp3) & (~ex1_rd_sel_byp4) & (~ex1_rd_sel_byp5) & (~ex1_rd_sel_byp6);
assign ex1_rd_sel_3 = ex1_thread[3] & (~ex1_rd_sel_byp2) & (~ex1_rd_sel_byp3) & (~ex1_rd_sel_byp4) & (~ex1_rd_sel_byp5) & (~ex1_rd_sel_byp6);
assign ex1_rd_sel_byp2_pri = ex1_rd_sel_byp2;
assign ex1_rd_sel_byp3_pri = (~ex1_rd_sel_byp2) & ex1_rd_sel_byp3;
assign ex1_rd_sel_byp4_pri = (~ex1_rd_sel_byp2) & (~ex1_rd_sel_byp3) & ex1_rd_sel_byp4;
assign ex1_rd_sel_byp5_pri = (~ex1_rd_sel_byp2) & (~ex1_rd_sel_byp3) & (~ex1_rd_sel_byp4) & ex1_rd_sel_byp5;
assign ex1_rd_sel_byp6_pri = (~ex1_rd_sel_byp2) & (~ex1_rd_sel_byp3) & (~ex1_rd_sel_byp4) & (~ex1_rd_sel_byp5) & ex1_rd_sel_byp6;
////##############################################
////# read mux for pipeline control bits
////##############################################
assign ex2_fpscr_shadow_mux[0:7] = ({8{ex2_rd_sel_0}} & shadow0[0:7]) |
({8{ex2_rd_sel_1}} & shadow1[0:7]) |
({8{ex2_rd_sel_2}} & shadow2[0:7]) |
({8{ex2_rd_sel_3}} & shadow3[0:7]) |
({8{ex2_rd_sel_byp2}} & shadow_byp2[0:7]) |
({8{ex2_rd_sel_byp3}} & shadow_byp3[0:7]) |
({8{ex2_rd_sel_byp4}} & shadow_byp4[0:7]) |
({8{ex2_rd_sel_byp5}} & shadow_byp5[0:7]) |
({8{ex2_rd_sel_byp6}} & shadow_byp6[0:7]);
assign f_cr2_ex2_fpscr_shadow[0:7] = ex2_fpscr_shadow_mux[0:7];
////##############################################
////# latches
////##############################################
tri_rlmreg_p #(.WIDTH(8)) shadow_byp2_lat(
.force_t(force_t), // tidn,
.d_mode(tiup),
.delay_lclkr(delay_lclkr[2]), // tidn,
.mpw1_b(mpw1_b[2]), // tidn,
.mpw2_b(mpw2_b[0]), // tidn,
.vd(vdd),
.gd(gnd),
.clk(clk),
.rst(rst),
.thold_b(thold_0_b),
.sg(sg_0),
.act(ex2_act),
.scout(shadow_byp2_so),
.scin(shadow_byp2_si),
//----------------
.din(shadow_byp2_din[0:7]),
.dout(shadow_byp2[0:7]) //LAT--
);
tri_rlmreg_p #(.WIDTH(8)) shadow_byp3_lat(
.force_t(force_t), // tidn,
.d_mode(tiup),
.delay_lclkr(delay_lclkr[3]), // tidn,
.mpw1_b(mpw1_b[3]), // tidn,
.mpw2_b(mpw2_b[0]), // tidn,
.vd(vdd),
.gd(gnd),
.clk(clk),
.rst(rst),
.thold_b(thold_0_b),
.sg(sg_0),
.act(ex3_act),
.scout(shadow_byp3_so),
.scin(shadow_byp3_si),
//-----------------
.din(shadow_byp2[0:7]),
.dout(shadow_byp3[0:7]) //LAT--
);
tri_rlmreg_p #(.WIDTH(8)) shadow_byp4_lat(
.force_t(force_t), // tidn,
.d_mode(tiup),
.delay_lclkr(delay_lclkr[4]), // tidn,
.mpw1_b(mpw1_b[4]), // tidn,
.mpw2_b(mpw2_b[0]), // tidn,
.vd(vdd),
.gd(gnd),
.clk(clk),
.rst(rst),
.thold_b(thold_0_b),
.sg(sg_0),
.act(ex4_act),
.scout(shadow_byp4_so),
.scin(shadow_byp4_si),
//-----------------
.din(shadow_byp3[0:7]),
.dout(shadow_byp4[0:7]) //LAT--
);
tri_rlmreg_p #(.WIDTH(8)) shadow_byp5_lat(
.force_t(force_t), // tidn,
.d_mode(tiup),
.delay_lclkr(delay_lclkr[5]), // tidn,
.mpw1_b(mpw1_b[5]), // tidn,
.mpw2_b(mpw2_b[1]), // tidn,
.vd(vdd),
.gd(gnd),
.clk(clk),
.rst(rst),
.thold_b(thold_0_b),
.sg(sg_0),
.act(ex5_act),
.scout(shadow_byp5_so),
.scin(shadow_byp5_si),
//-----------------
.din(shadow_byp4[0:7]),
.dout(shadow_byp5[0:7]) //LAT--
);
tri_rlmreg_p #(.WIDTH(8)) shadow_byp6_lat(
.force_t(force_t), // tidn,
.d_mode(tiup),
.delay_lclkr(delay_lclkr[6]), // tidn,
.mpw1_b(mpw1_b[6]), // tidn,
.mpw2_b(mpw2_b[1]), // tidn,
.vd(vdd),
.gd(gnd),
.clk(clk),
.rst(rst),
.thold_b(thold_0_b),
.sg(sg_0),
.act(ex6_act),
.scout(shadow_byp6_so),
.scin(shadow_byp6_si),
//-----------------
.din(shadow_byp5[0:7]),
.dout(shadow_byp6[0:7]) //LAT--
);
assign ex7_th0_act = ex7_act & ex7_thread[0] & (~ex7_cancel) & ex7_mv_to_op;
assign ex7_th1_act = ex7_act & ex7_thread[1] & (~ex7_cancel) & ex7_mv_to_op;
assign ex7_th2_act = ex7_act & ex7_thread[2] & (~ex7_cancel) & ex7_mv_to_op;
assign ex7_th3_act = ex7_act & ex7_thread[3] & (~ex7_cancel) & ex7_mv_to_op;
tri_rlmreg_p #(.WIDTH(8)) shadow0_lat(
.force_t(force_t), // tidn,
.d_mode(tiup),
.delay_lclkr(delay_lclkr[7]), // tidn,
.mpw1_b(mpw1_b[7]), // tidn,
.mpw2_b(mpw2_b[1]), // tidn,
.vd(vdd),
.gd(gnd),
.clk(clk),
.rst(rst),
.thold_b(thold_0_b),
.sg(sg_0),
.act(ex7_th0_act),
.scout(shadow0_so),
.scin(shadow0_si),
//-----------------
.din(shadow_byp6[0:7]),
.dout(shadow0[0:7]) //LAT--
);
tri_rlmreg_p #(.WIDTH(8)) shadow1_lat(
.force_t(force_t), // tidn,
.d_mode(tiup),
.delay_lclkr(delay_lclkr[7]), // tidn,
.mpw1_b(mpw1_b[7]), // tidn,
.mpw2_b(mpw2_b[1]), // tidn,
.vd(vdd),
.gd(gnd),
.clk(clk),
.rst(rst),
.thold_b(thold_0_b),
.sg(sg_0),
.act(ex7_th1_act),
.scout(shadow1_so),
.scin(shadow1_si),
//-----------------
.din(shadow_byp6[0:7]),
.dout(shadow1[0:7]) //LAT--
);
tri_rlmreg_p #(.WIDTH(8)) shadow2_lat(
.force_t(force_t), // tidn,
.d_mode(tiup),
.delay_lclkr(delay_lclkr[7]), // tidn,
.mpw1_b(mpw1_b[7]), // tidn,
.mpw2_b(mpw2_b[1]), // tidn,
.vd(vdd),
.gd(gnd),
.clk(clk),
.rst(rst),
.thold_b(thold_0_b),
.sg(sg_0),
.act(ex7_th2_act),
.scout(shadow2_so),
.scin(shadow2_si),
//-----------------
.din(shadow_byp6[0:7]),
.dout(shadow2[0:7]) //LAT--
);
tri_rlmreg_p #(.WIDTH(8)) shadow3_lat(
.force_t(force_t), // tidn,
.d_mode(tiup),
.delay_lclkr(delay_lclkr[7]), // tidn,
.mpw1_b(mpw1_b[7]), // tidn,
.mpw2_b(mpw2_b[1]), // tidn,
.vd(vdd),
.gd(gnd),
.clk(clk),
.rst(rst),
.thold_b(thold_0_b),
.sg(sg_0),
.act(ex7_th3_act),
.scout(shadow3_so),
.scin(shadow3_si),
//-----------------
.din(shadow_byp6[0:7]),
.dout(shadow3[0:7]) //LAT--
);
////############################################
////# scan
////############################################
// initial value must be "11111" for _b latches --
assign ex2_ctl_si[0:33] = {ex2_ctl_so[1:33], f_cr2_si};
assign ex3_ctl_si[0:24] = {ex3_ctl_so[1:24], ex2_ctl_so[0]};
assign ex4_ctl_si[0:24] = {ex4_ctl_so[1:24], ex3_ctl_so[0]};
assign ex5_ctl_si[0:4] = {ex5_ctl_so[1:4], ex4_ctl_so[0]};
assign ex6_ctl_si[0:4] = {ex6_ctl_so[1:4], ex5_ctl_so[0]};
assign ex7_ctl_si[0:4] = {ex7_ctl_so[1:4], ex6_ctl_so[0]};
assign shadow0_si[0:7] = {shadow0_so[1:7], ex7_ctl_so[0]};
assign shadow1_si[0:7] = {shadow1_so[1:7], shadow0_so[0]};
assign shadow2_si[0:7] = {shadow2_so[1:7], shadow1_so[0]};
assign shadow3_si[0:7] = {shadow3_so[1:7], shadow2_so[0]};
assign shadow_byp2_si[0:7] = {shadow_byp2_so[1:7], shadow3_so[0]};
assign shadow_byp3_si[0:7] = {shadow_byp3_so[1:7], shadow_byp2_so[0]};
assign shadow_byp4_si[0:7] = {shadow_byp4_so[1:7], shadow_byp3_so[0]};
assign shadow_byp5_si[0:7] = {shadow_byp5_so[1:7], shadow_byp4_so[0]};
assign shadow_byp6_si[0:7] = {shadow_byp6_so[1:7], shadow_byp5_so[0]};
assign act_si[0:6] = {act_so[1:6], shadow_byp6_so[0]};
assign f_cr2_so = act_so[0];
endmodule
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