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a2i/rel/src/vhdl/work/xuq_add_glbglbci.vhdl

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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.
library ieee; use ieee.std_logic_1164.all ;
library ibm;
use ibm.std_ulogic_support.all;
use ibm.std_ulogic_function_support.all;
use ibm.std_ulogic_ao_support.all;
use ibm.std_ulogic_mux_support.all;
-- input phase is important
-- (change X (B) by switching xor/xnor )
entity xuq_add_glbglbci is port(
g08 :in std_ulogic_vector(0 to 7) ;
t08 :in std_ulogic_vector(0 to 7) ;
ci :in std_ulogic ;
c64_b :out std_ulogic_vector(0 to 7)
);
END xuq_add_glbglbci;
ARCHITECTURE xuq_add_glbglbci OF xuq_add_glbglbci IS
constant tiup : std_ulogic := '1';
constant tidn : std_ulogic := '0';
signal b0_g16_b :std_ulogic_vector(0 to 3);
signal b0_t16_b :std_ulogic_vector(0 to 2);
signal b0_g32 :std_ulogic_vector(0 to 1);
signal b0_t32 :std_ulogic_vector(0 to 0);
signal b1_g16_b :std_ulogic_vector(0 to 3);
signal b1_t16_b :std_ulogic_vector(0 to 2);
signal b1_g32 :std_ulogic_vector(0 to 1);
signal b1_t32 :std_ulogic_vector(0 to 0);
signal b2_g16_b :std_ulogic_vector(0 to 3);
signal b2_t16_b :std_ulogic_vector(0 to 2);
signal b2_g32 :std_ulogic_vector(0 to 1);
signal b2_t32 :std_ulogic_vector(0 to 0);
signal b3_g16_b :std_ulogic_vector(0 to 3);
signal b3_t16_b :std_ulogic_vector(0 to 2);
signal b3_g32 :std_ulogic_vector(0 to 1);
signal b3_t32 :std_ulogic_vector(0 to 0);
signal b4_g16_b :std_ulogic_vector(0 to 3);
signal b4_t16_b :std_ulogic_vector(0 to 2);
signal b4_g32 :std_ulogic_vector(0 to 1);
signal b4_t32 :std_ulogic_vector(0 to 0);
signal b5_g16_b :std_ulogic_vector(0 to 2);
signal b5_t16_b :std_ulogic_vector(0 to 1);
signal b5_g32 :std_ulogic_vector(0 to 1);
signal b5_t32 :std_ulogic_vector(0 to 0);
signal b6_g16_b :std_ulogic_vector(0 to 1);
signal b6_t16_b :std_ulogic_vector(0 to 0);
signal b6_g32 :std_ulogic_vector(0 to 0);
signal b7_g16_b :std_ulogic_vector(0 to 0);
signal b7_g32 :std_ulogic_vector(0 to 0);
signal b0_g56_b, b0_c64 :std_ulogic ;
signal g08_b, t08_b :std_ulogic_vector(0 to 0) ;
BEGIN
--//#############################
--//## byte 0 <for CO only ??
--//#############################
u0_g16_0: b0_g16_b(0) <= not( g08(1) or ( t08(1) and g08(2) ) );
u0_g16_1: b0_g16_b(1) <= not( g08(3) or ( t08(3) and g08(4) ) );
u0_g16_2: b0_g16_b(2) <= not( g08(5) or ( t08(5) and g08(6) ) );
u0_g16_3: b0_g16_b(3) <= not( g08(7) or ( t08(7) and ci ) );
u0_t16_0: b0_t16_b(0) <= not( t08(1) and t08(2) );
u0_t16_1: b0_t16_b(1) <= not( t08(3) and t08(4) );
u0_t16_2: b0_t16_b(2) <= not( t08(5) and t08(6) );
u0_g32_0: b0_g32(0) <= not( b0_g16_b(0) and ( b0_t16_b(0) or b0_g16_b(1) ) ) ;
u0_g32_1: b0_g32(1) <= not( b0_g16_b(2) and ( b0_t16_b(2) or b0_g16_b(3) ) ) ;
u0_t32_0: b0_t32(0) <= not( b0_t16_b(0) or b0_t16_b(1) ) ;
u0_g08b: g08_b(0) <= not g08(0) ;
u0_t08b: t08_b(0) <= not t08(0) ;
u0_g56_0: b0_g56_b <= not( b0_g32(0) or (b0_t32(0) and b0_g32(1) ) ); --output--
u0_c64_0: b0_c64 <= not( g08_b(0) and ( t08_b(0) or b0_g56_b ) ) ;
u0_g64_0: c64_b(0) <= not( b0_c64 );
--//#############################
--//## byte 1
--//#############################
u1_g16_0: b1_g16_b(0) <= not( g08(1) or ( t08(1) and g08(2) ) );
u1_g16_1: b1_g16_b(1) <= not( g08(3) or ( t08(3) and g08(4) ) );
u1_g16_2: b1_g16_b(2) <= not( g08(5) or ( t08(5) and g08(6) ) );
u1_g16_3: b1_g16_b(3) <= not( g08(7) or (t08(7) and ci) );
u1_t16_0: b1_t16_b(0) <= not( t08(1) and t08(2) );
u1_t16_1: b1_t16_b(1) <= not( t08(3) and t08(4) );
u1_t16_2: b1_t16_b(2) <= not( t08(5) and t08(6) );
u1_g32_0: b1_g32(0) <= not( b1_g16_b(0) and ( b1_t16_b(0) or b1_g16_b(1) ) ) ;
u1_g32_1: b1_g32(1) <= not( b1_g16_b(2) and ( b1_t16_b(2) or b1_g16_b(3) ) ) ;
u1_t32_0: b1_t32(0) <= not( b1_t16_b(0) or b1_t16_b(1) ) ;
u1_g64_0: c64_b(1) <= not( b1_g32(0) or (b1_t32(0) and b1_g32(1) ) ); --output--
--//#############################
--//## byte 2
--//#############################
u2_g16_0: b2_g16_b(0) <= not( g08(2) or ( t08(2) and g08(3) ) );
u2_g16_1: b2_g16_b(1) <= not( g08(4) or ( t08(4) and g08(5) ) );
u2_g16_2: b2_g16_b(2) <= not( g08(6) );
u2_g16_3: b2_g16_b(3) <= not( g08(7) or (t08(7) and ci) );
u2_t16_0: b2_t16_b(0) <= not( t08(2) and t08(3) );
u2_t16_1: b2_t16_b(1) <= not( t08(4) and t08(5) );
u2_t16_2: b2_t16_b(2) <= not( t08(6) );
u2_g32_0: b2_g32(0) <= not( b2_g16_b(0) and ( b2_t16_b(0) or b2_g16_b(1) ) ) ;
u2_g32_1: b2_g32(1) <= not( b2_g16_b(2) and ( b2_t16_b(2) or b2_g16_b(3) ) ) ;
u2_t32_0: b2_t32(0) <= not( b2_t16_b(0) or b2_t16_b(1) ) ;
u2_g64_0: c64_b(2) <= not( b2_g32(0) or (b2_t32(0) and b2_g32(1) ) ); --output--
--//#############################
--//## byte 3
--//#############################
u3_g16_0: b3_g16_b(0) <= not( g08(3) or ( t08(3) and g08(4) ) );
u3_g16_1: b3_g16_b(1) <= not( g08(5) );
u3_g16_2: b3_g16_b(2) <= not( g08(6) );
u3_g16_3: b3_g16_b(3) <= not( g08(7) or (t08(7) and ci) );
u3_t16_0: b3_t16_b(0) <= not( t08(3) and t08(4) );
u3_t16_1: b3_t16_b(1) <= not( t08(5) );
u3_t16_2: b3_t16_b(2) <= not( t08(6) );
u3_g32_0: b3_g32(0) <= not( b3_g16_b(0) and ( b3_t16_b(0) or b3_g16_b(1) ) ) ;
u3_g32_1: b3_g32(1) <= not( b3_g16_b(2) and ( b3_t16_b(2) or b3_g16_b(3) ) ) ;
u3_t32_0: b3_t32(0) <= not( b3_t16_b(0) or b3_t16_b(1) ) ;
u3_g64_0: c64_b(3) <= not( b3_g32(0) or (b3_t32(0) and b3_g32(1) ) ); --output--
--//#############################
--//## byte 4
--//#############################
u4_g16_0: b4_g16_b(0) <= not( g08(4) );
u4_g16_1: b4_g16_b(1) <= not( g08(5) );
u4_g16_2: b4_g16_b(2) <= not( g08(6) );
u4_g16_3: b4_g16_b(3) <= not( g08(7) or (t08(7) and ci) );
u4_t16_0: b4_t16_b(0) <= not( t08(4) );
u4_t16_1: b4_t16_b(1) <= not( t08(5) );
u4_t16_2: b4_t16_b(2) <= not( t08(6) );
u4_g32_0: b4_g32(0) <= not( b4_g16_b(0) and ( b4_t16_b(0) or b4_g16_b(1) ) ) ;
u4_g32_1: b4_g32(1) <= not( b4_g16_b(2) and ( b4_t16_b(2) or b4_g16_b(3) ) ) ;
u4_t32_0: b4_t32(0) <= not( b4_t16_b(0) or b4_t16_b(1) ) ;
u4_g64_0: c64_b(4) <= not( b4_g32(0) or (b4_t32(0) and b4_g32(1) ) ); --output--
--//#############################
--//## byte 5
--//#############################
u5_g16_0: b5_g16_b(0) <= not( g08(5) );
u5_g16_1: b5_g16_b(1) <= not( g08(6) );
u5_g16_2: b5_g16_b(2) <= not( g08(7) or (t08(7) and ci) );
u5_t16_0: b5_t16_b(0) <= not( t08(5) );
u5_t16_1: b5_t16_b(1) <= not( t08(6) );
u5_g32_0: b5_g32(0) <= not( b5_g16_b(0) and ( b5_t16_b(0) or b5_g16_b(1) ) ) ;
u5_g32_1: b5_g32(1) <= not( b5_g16_b(2) ) ;
u5_t32_0: b5_t32(0) <= not( b5_t16_b(0) or b5_t16_b(1) ) ;
u5_g64_0: c64_b(5) <= not( b5_g32(0) or (b5_t32(0) and b5_g32(1) ) ); --output--
--//#############################
--//## byte 6
--//#############################
u6_g16_0: b6_g16_b(0) <= not( g08(6) );
u6_g16_1: b6_g16_b(1) <= not( g08(7) or (t08(7) and ci) );
u6_t16_0: b6_t16_b(0) <= not( t08(6) );
u6_g32_0: b6_g32(0) <= not( b6_g16_b(0) and ( b6_t16_b(0) or b6_g16_b(1) ) ) ;
u6_g64_0: c64_b(6) <= not( b6_g32(0) ) ; --output--
--//#############################
--//## byte 7
--//#############################
u7_g16_0: b7_g16_b(0) <= not( g08(7) or (t08(7) and ci) );
u7_g32_0: b7_g32(0) <= not( b7_g16_b(0) );
u7_g64_0: c64_b(7) <= not( b7_g32(0) ) ; --output--
END; -- ARCH xuq_add_glbglbci
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