riscv/rocket-chip
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improve id/ex datapath

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move operand selection into decode stage; simplify bypassing
This commit is contained in:
Andrew Waterman
2012-02-08 06:47:26 -08:00
parent d471a8b2da
commit e9da2cf66a
4 changed files with 179 additions and 207 deletions
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36
rocket/src/main/scala/consts.scala
View File

@ -15,14 +15,13 @@ object Constants
val BR_J = UFix(7, 4);
val BR_JR = UFix(8, 4);
val PC_4 = UFix(0, 4);
val PC_BTB = UFix(1, 4);
val PC_EX4 = UFix(2, 4);
val PC_BR = UFix(3, 4);
val PC_JR = UFix(4, 4);
val PC_PCR = UFix(5, 4);
val PC_WB = UFix(6, 4);
val PC_EVEC = UFix(7, 4);
val PC_4 = UFix(0, 3);
val PC_BTB = UFix(1, 3);
val PC_EX4 = UFix(2, 3);
val PC_BR = UFix(3, 3);
val PC_PCR = UFix(4, 3);
val PC_WB = UFix(5, 3);
val PC_EVEC = UFix(6, 3);
val KF_Y = UFix(1, 1);
val KF_N = UFix(0, 1);
@ -30,19 +29,13 @@ object Constants
val REN_Y = UFix(1, 1);
val REN_N = UFix(0, 1);
val AS_X = UFix(0, 1);
val AS_IMM = UFix(0, 1);
val AS_RS2 = UFix(1, 1);
val A2_X = UFix(0, 2);
val A2_0 = UFix(0, 2);
val A2_SEXT = UFix(1, 2);
val A2_RS2 = UFix(2, 2);
val A2_SPLIT = UFix(3, 2);
val A1_X = UFix(0, 1);
val A1_RS1 = UFix(0, 1);
val A1_LUI = UFix(1, 1);
val A2_X = UFix(0, 3);
val A2_BTYPE = UFix(0, 3);
val A2_LTYPE = UFix(1, 3);
val A2_ITYPE = UFix(2, 3);
val A2_ZERO = UFix(4, 3);
val A2_JTYPE = UFix(5, 3);
val A2_RTYPE = UFix(6, 3);
val MUL_X = UFix(0, 2);
val MUL_LO = UFix(0, 2);
@ -94,6 +87,7 @@ object Constants
val FN_SL = UFix(7, 4);
val FN_SR = UFix(8, 4);
val FN_SRA = UFix(9, 4);
val FN_OP2 = UFix(10, 4);
val DW_X = UFix(0, 1);
val DW_32 = UFix(0, 1);

240
rocket/src/main/scala/ctrl.scala
View File

@ -9,7 +9,7 @@ import Instructions._
class ioCtrlDpath extends Bundle()
{
// outputs to datapath
val sel_pc = UFix(4, OUTPUT);
val sel_pc = UFix(3, OUTPUT);
val wen_btb = Bool(OUTPUT);
val clr_btb = Bool(OUTPUT);
val stallf = Bool(OUTPUT);
@ -20,8 +20,7 @@ class ioCtrlDpath extends Bundle()
val killm = Bool(OUTPUT);
val ren2 = Bool(OUTPUT);
val ren1 = Bool(OUTPUT);
val sel_alu2 = UFix(2, OUTPUT);
val sel_alu1 = Bool(OUTPUT);
val sel_alu2 = UFix(3, OUTPUT);
val fn_dw = Bool(OUTPUT);
val fn_alu = UFix(4, OUTPUT);
val mul_val = Bool(OUTPUT);
@ -39,9 +38,6 @@ class ioCtrlDpath extends Bundle()
val ex_wen = Bool(OUTPUT);
val mem_wen = Bool(OUTPUT);
val wb_wen = Bool(OUTPUT);
// instruction in execute is an unconditional jump
val ex_jmp = Bool(OUTPUT);
val ex_jr = Bool(OUTPUT);
// enable/disable interrupts
val irq_enable = Bool(OUTPUT);
val irq_disable = Bool(OUTPUT);
@ -103,130 +99,130 @@ class rocketCtrl extends Component
val xpr64 = Y;
val cs =
ListLookup(io.dpath.inst,
List( N, BR_N, REN_N,REN_N,A2_X, A1_X, DW_X, FN_X, M_N,M_X, MT_X, N,MUL_X, N,DIV_X, WEN_N,WA_X, WB_X, REN_N,WEN_N,I_X ,SYNC_N,N,N,N,N),
List( N, BR_N, REN_N,REN_N,A2_X, DW_X, FN_X, M_N,M_X, MT_X, N,MUL_X, N,DIV_X, WEN_N,WA_X, WB_X, REN_N,WEN_N,I_X ,SYNC_N,N,N,N,N),
Array(
BNE-> List(Y, BR_NE, REN_Y,REN_Y,A2_RS2, A1_RS1,DW_X, FN_X, M_N,M_X, MT_X, N,MUL_X, N,DIV_X, WEN_N,WA_X, WB_X, REN_N,WEN_N,I_X ,SYNC_N,N,N,N,N),
ADDI-> List(Y, BR_N, REN_N,REN_Y,A2_SEXT, A1_RS1,DW_XPR,FN_ADD, M_N,M_X, MT_X, N,MUL_X, N,DIV_X, WEN_Y,WA_RD,WB_ALU,REN_N,WEN_N,I_X ,SYNC_N,N,N,N,N),
BEQ-> List(Y, BR_EQ, REN_Y,REN_Y,A2_RS2, A1_RS1,DW_X, FN_X, M_N,M_X, MT_X, N,MUL_X, N,DIV_X, WEN_N,WA_X, WB_X, REN_N,WEN_N,I_X ,SYNC_N,N,N,N,N),
BLT-> List(Y, BR_LT, REN_Y,REN_Y,A2_RS2, A1_RS1,DW_X, FN_X, M_N,M_X, MT_X, N,MUL_X, N,DIV_X, WEN_N,WA_X, WB_X, REN_N,WEN_N,I_X ,SYNC_N,N,N,N,N),
BLTU-> List(Y, BR_LTU,REN_Y,REN_Y,A2_RS2, A1_RS1,DW_X, FN_X, M_N,M_X, MT_X, N,MUL_X, N,DIV_X, WEN_N,WA_X, WB_X, REN_N,WEN_N,I_X ,SYNC_N,N,N,N,N),
BGE-> List(Y, BR_GE, REN_Y,REN_Y,A2_RS2, A1_RS1,DW_X, FN_X, M_N,M_X, MT_X, N,MUL_X, N,DIV_X, WEN_N,WA_X, WB_X, REN_N,WEN_N,I_X ,SYNC_N,N,N,N,N),
BGEU-> List(Y, BR_GEU,REN_Y,REN_Y,A2_RS2, A1_RS1,DW_X, FN_X, M_N,M_X, MT_X, N,MUL_X, N,DIV_X, WEN_N,WA_X, WB_X, REN_N,WEN_N,I_X ,SYNC_N,N,N,N,N),
BNE-> List(Y, BR_NE, REN_Y,REN_Y,A2_BTYPE,DW_X, FN_ADD, M_N,M_X, MT_X, N,MUL_X, N,DIV_X, WEN_N,WA_X, WB_X, REN_N,WEN_N,I_X ,SYNC_N,N,N,N,N),
BEQ-> List(Y, BR_EQ, REN_Y,REN_Y,A2_BTYPE,DW_X, FN_ADD, M_N,M_X, MT_X, N,MUL_X, N,DIV_X, WEN_N,WA_X, WB_X, REN_N,WEN_N,I_X ,SYNC_N,N,N,N,N),
BLT-> List(Y, BR_LT, REN_Y,REN_Y,A2_BTYPE,DW_X, FN_ADD, M_N,M_X, MT_X, N,MUL_X, N,DIV_X, WEN_N,WA_X, WB_X, REN_N,WEN_N,I_X ,SYNC_N,N,N,N,N),
BLTU-> List(Y, BR_LTU,REN_Y,REN_Y,A2_BTYPE,DW_X, FN_ADD, M_N,M_X, MT_X, N,MUL_X, N,DIV_X, WEN_N,WA_X, WB_X, REN_N,WEN_N,I_X ,SYNC_N,N,N,N,N),
BGE-> List(Y, BR_GE, REN_Y,REN_Y,A2_BTYPE,DW_X, FN_ADD, M_N,M_X, MT_X, N,MUL_X, N,DIV_X, WEN_N,WA_X, WB_X, REN_N,WEN_N,I_X ,SYNC_N,N,N,N,N),
BGEU-> List(Y, BR_GEU,REN_Y,REN_Y,A2_BTYPE,DW_X, FN_ADD, M_N,M_X, MT_X, N,MUL_X, N,DIV_X, WEN_N,WA_X, WB_X, REN_N,WEN_N,I_X ,SYNC_N,N,N,N,N),
J-> List(Y, BR_J, REN_N,REN_N,A2_X, A1_X, DW_X, FN_X, M_N,M_X, MT_X, N,MUL_X, N,DIV_X, WEN_N,WA_X, WB_X, REN_N,WEN_N,I_X ,SYNC_N,N,N,N,N),
JAL-> List(Y, BR_J, REN_N,REN_N,A2_X, A1_X, DW_X, FN_X, M_N,M_X, MT_X, N,MUL_X, N,DIV_X, WEN_Y,WA_RA,WB_PC, REN_N,WEN_N,I_X ,SYNC_N,N,N,N,N),
JALR_C-> List(Y, BR_JR, REN_N,REN_Y,A2_SEXT, A1_RS1,DW_XPR,FN_ADD, M_N,M_X, MT_X, N,MUL_X, N,DIV_X, WEN_Y,WA_RD,WB_PC, REN_N,WEN_N,I_X ,SYNC_N,N,N,N,N),
JALR_J-> List(Y, BR_JR, REN_N,REN_Y,A2_SEXT, A1_RS1,DW_XPR,FN_ADD, M_N,M_X, MT_X, N,MUL_X, N,DIV_X, WEN_Y,WA_RD,WB_PC, REN_N,WEN_N,I_X ,SYNC_N,N,N,N,N),
JALR_R-> List(Y, BR_JR, REN_N,REN_Y,A2_SEXT, A1_RS1,DW_XPR,FN_ADD, M_N,M_X, MT_X, N,MUL_X, N,DIV_X, WEN_Y,WA_RD,WB_PC, REN_N,WEN_N,I_X ,SYNC_N,N,N,N,N),
RDNPC-> List(Y, BR_N, REN_N,REN_Y,A2_SEXT, A1_RS1,DW_XPR,FN_ADD, M_N,M_X, MT_X, N,MUL_X, N,DIV_X, WEN_Y,WA_RD,WB_PC, REN_N,WEN_N,I_X ,SYNC_N,N,N,N,N),
J-> List(Y, BR_J, REN_N,REN_N,A2_JTYPE,DW_X, FN_ADD, M_N,M_X, MT_X, N,MUL_X, N,DIV_X, WEN_N,WA_X, WB_X, REN_N,WEN_N,I_X ,SYNC_N,N,N,N,N),
JAL-> List(Y, BR_J, REN_N,REN_N,A2_JTYPE,DW_X, FN_ADD, M_N,M_X, MT_X, N,MUL_X, N,DIV_X, WEN_Y,WA_RA,WB_PC, REN_N,WEN_N,I_X ,SYNC_N,N,N,N,N),
JALR_C-> List(Y, BR_JR, REN_N,REN_Y,A2_ITYPE,DW_XPR,FN_ADD, M_N,M_X, MT_X, N,MUL_X, N,DIV_X, WEN_Y,WA_RD,WB_PC, REN_N,WEN_N,I_X ,SYNC_N,N,N,N,N),
JALR_J-> List(Y, BR_JR, REN_N,REN_Y,A2_ITYPE,DW_XPR,FN_ADD, M_N,M_X, MT_X, N,MUL_X, N,DIV_X, WEN_Y,WA_RD,WB_PC, REN_N,WEN_N,I_X ,SYNC_N,N,N,N,N),
JALR_R-> List(Y, BR_JR, REN_N,REN_Y,A2_ITYPE,DW_XPR,FN_ADD, M_N,M_X, MT_X, N,MUL_X, N,DIV_X, WEN_Y,WA_RD,WB_PC, REN_N,WEN_N,I_X ,SYNC_N,N,N,N,N),
RDNPC-> List(Y, BR_N, REN_N,REN_Y,A2_ITYPE,DW_XPR,FN_ADD, M_N,M_X, MT_X, N,MUL_X, N,DIV_X, WEN_Y,WA_RD,WB_PC, REN_N,WEN_N,I_X ,SYNC_N,N,N,N,N),
LB-> List(Y, BR_N, REN_N,REN_Y,A2_SEXT, A1_RS1,DW_XPR,FN_ADD, M_Y,M_XRD, MT_B, N,MUL_X, N,DIV_X, WEN_Y,WA_RD,WB_ALU,REN_N,WEN_N,I_X ,SYNC_N,N,N,N,N),
LH-> List(Y, BR_N, REN_N,REN_Y,A2_SEXT, A1_RS1,DW_XPR,FN_ADD, M_Y,M_XRD, MT_H, N,MUL_X, N,DIV_X, WEN_Y,WA_RD,WB_ALU,REN_N,WEN_N,I_X ,SYNC_N,N,N,N,N),
LW-> List(Y, BR_N, REN_N,REN_Y,A2_SEXT, A1_RS1,DW_XPR,FN_ADD, M_Y,M_XRD, MT_W, N,MUL_X, N,DIV_X, WEN_Y,WA_RD,WB_ALU,REN_N,WEN_N,I_X ,SYNC_N,N,N,N,N),
LD-> List(xpr64, BR_N, REN_N,REN_Y,A2_SEXT, A1_RS1,DW_XPR,FN_ADD, M_Y,M_XRD, MT_D, N,MUL_X, N,DIV_X, WEN_Y,WA_RD,WB_ALU,REN_N,WEN_N,I_X ,SYNC_N,N,N,N,N),
LBU-> List(Y, BR_N, REN_N,REN_Y,A2_SEXT, A1_RS1,DW_XPR,FN_ADD, M_Y,M_XRD, MT_BU,N,MUL_X, N,DIV_X, WEN_Y,WA_RD,WB_ALU,REN_N,WEN_N,I_X ,SYNC_N,N,N,N,N),
LHU-> List(Y, BR_N, REN_N,REN_Y,A2_SEXT, A1_RS1,DW_XPR,FN_ADD, M_Y,M_XRD, MT_HU,N,MUL_X, N,DIV_X, WEN_Y,WA_RD,WB_ALU,REN_N,WEN_N,I_X ,SYNC_N,N,N,N,N),
LWU-> List(xpr64, BR_N, REN_N,REN_Y,A2_SEXT, A1_RS1,DW_XPR,FN_ADD, M_Y,M_XRD, MT_WU,N,MUL_X, N,DIV_X, WEN_Y,WA_RD,WB_ALU,REN_N,WEN_N,I_X ,SYNC_N,N,N,N,N),
SB-> List(Y, BR_N, REN_Y,REN_Y,A2_SPLIT,A1_RS1,DW_XPR,FN_ADD, M_Y,M_XWR, MT_B, N,MUL_X, N,DIV_X, WEN_N,WA_X, WB_ALU,REN_N,WEN_N,I_X ,SYNC_N,N,N,N,N),
SH-> List(Y, BR_N, REN_Y,REN_Y,A2_SPLIT,A1_RS1,DW_XPR,FN_ADD, M_Y,M_XWR, MT_H, N,MUL_X, N,DIV_X, WEN_N,WA_X, WB_ALU,REN_N,WEN_N,I_X ,SYNC_N,N,N,N,N),
SW-> List(Y, BR_N, REN_Y,REN_Y,A2_SPLIT,A1_RS1,DW_XPR,FN_ADD, M_Y,M_XWR, MT_W, N,MUL_X, N,DIV_X, WEN_N,WA_X, WB_ALU,REN_N,WEN_N,I_X ,SYNC_N,N,N,N,N),
SD-> List(xpr64, BR_N, REN_Y,REN_Y,A2_SPLIT,A1_RS1,DW_XPR,FN_ADD, M_Y,M_XWR, MT_D, N,MUL_X, N,DIV_X, WEN_N,WA_X, WB_ALU,REN_N,WEN_N,I_X ,SYNC_N,N,N,N,N),
LB-> List(Y, BR_N, REN_N,REN_Y,A2_ITYPE,DW_XPR,FN_ADD, M_Y,M_XRD, MT_B, N,MUL_X, N,DIV_X, WEN_Y,WA_RD,WB_ALU,REN_N,WEN_N,I_X ,SYNC_N,N,N,N,N),
LH-> List(Y, BR_N, REN_N,REN_Y,A2_ITYPE,DW_XPR,FN_ADD, M_Y,M_XRD, MT_H, N,MUL_X, N,DIV_X, WEN_Y,WA_RD,WB_ALU,REN_N,WEN_N,I_X ,SYNC_N,N,N,N,N),
LW-> List(Y, BR_N, REN_N,REN_Y,A2_ITYPE,DW_XPR,FN_ADD, M_Y,M_XRD, MT_W, N,MUL_X, N,DIV_X, WEN_Y,WA_RD,WB_ALU,REN_N,WEN_N,I_X ,SYNC_N,N,N,N,N),
LD-> List(xpr64, BR_N, REN_N,REN_Y,A2_ITYPE,DW_XPR,FN_ADD, M_Y,M_XRD, MT_D, N,MUL_X, N,DIV_X, WEN_Y,WA_RD,WB_ALU,REN_N,WEN_N,I_X ,SYNC_N,N,N,N,N),
LBU-> List(Y, BR_N, REN_N,REN_Y,A2_ITYPE,DW_XPR,FN_ADD, M_Y,M_XRD, MT_BU,N,MUL_X, N,DIV_X, WEN_Y,WA_RD,WB_ALU,REN_N,WEN_N,I_X ,SYNC_N,N,N,N,N),
LHU-> List(Y, BR_N, REN_N,REN_Y,A2_ITYPE,DW_XPR,FN_ADD, M_Y,M_XRD, MT_HU,N,MUL_X, N,DIV_X, WEN_Y,WA_RD,WB_ALU,REN_N,WEN_N,I_X ,SYNC_N,N,N,N,N),
LWU-> List(xpr64, BR_N, REN_N,REN_Y,A2_ITYPE,DW_XPR,FN_ADD, M_Y,M_XRD, MT_WU,N,MUL_X, N,DIV_X, WEN_Y,WA_RD,WB_ALU,REN_N,WEN_N,I_X ,SYNC_N,N,N,N,N),
SB-> List(Y, BR_N, REN_Y,REN_Y,A2_BTYPE,DW_XPR,FN_ADD, M_Y,M_XWR, MT_B, N,MUL_X, N,DIV_X, WEN_N,WA_X, WB_ALU,REN_N,WEN_N,I_X ,SYNC_N,N,N,N,N),
SH-> List(Y, BR_N, REN_Y,REN_Y,A2_BTYPE,DW_XPR,FN_ADD, M_Y,M_XWR, MT_H, N,MUL_X, N,DIV_X, WEN_N,WA_X, WB_ALU,REN_N,WEN_N,I_X ,SYNC_N,N,N,N,N),
SW-> List(Y, BR_N, REN_Y,REN_Y,A2_BTYPE,DW_XPR,FN_ADD, M_Y,M_XWR, MT_W, N,MUL_X, N,DIV_X, WEN_N,WA_X, WB_ALU,REN_N,WEN_N,I_X ,SYNC_N,N,N,N,N),
SD-> List(xpr64, BR_N, REN_Y,REN_Y,A2_BTYPE,DW_XPR,FN_ADD, M_Y,M_XWR, MT_D, N,MUL_X, N,DIV_X, WEN_N,WA_X, WB_ALU,REN_N,WEN_N,I_X ,SYNC_N,N,N,N,N),
AMOADD_W-> List(Y, BR_N, REN_Y,REN_Y,A2_0, A1_RS1,DW_XPR,FN_ADD, M_Y,M_XA_ADD, MT_W, N,MUL_X, N,DIV_X, WEN_Y,WA_RD,WB_ALU,REN_N,WEN_N,I_X ,SYNC_N,N,N,N,N),
AMOSWAP_W->List(Y, BR_N, REN_Y,REN_Y,A2_0, A1_RS1,DW_XPR,FN_ADD, M_Y,M_XA_SWAP,MT_W, N,MUL_X, N,DIV_X, WEN_Y,WA_RD,WB_ALU,REN_N,WEN_N,I_X ,SYNC_N,N,N,N,N),
AMOAND_W-> List(Y, BR_N, REN_Y,REN_Y,A2_0, A1_RS1,DW_XPR,FN_ADD, M_Y,M_XA_AND, MT_W, N,MUL_X, N,DIV_X, WEN_Y,WA_RD,WB_ALU,REN_N,WEN_N,I_X ,SYNC_N,N,N,N,N),
AMOOR_W-> List(Y, BR_N, REN_Y,REN_Y,A2_0, A1_RS1,DW_XPR,FN_ADD, M_Y,M_XA_OR, MT_W, N,MUL_X, N,DIV_X, WEN_Y,WA_RD,WB_ALU,REN_N,WEN_N,I_X ,SYNC_N,N,N,N,N),
AMOMIN_W-> List(Y, BR_N, REN_Y,REN_Y,A2_0, A1_RS1,DW_XPR,FN_ADD, M_Y,M_XA_MIN, MT_W, N,MUL_X, N,DIV_X, WEN_Y,WA_RD,WB_ALU,REN_N,WEN_N,I_X ,SYNC_N,N,N,N,N),
AMOMINU_W->List(Y, BR_N, REN_Y,REN_Y,A2_0, A1_RS1,DW_XPR,FN_ADD, M_Y,M_XA_MINU,MT_W, N,MUL_X, N,DIV_X, WEN_Y,WA_RD,WB_ALU,REN_N,WEN_N,I_X ,SYNC_N,N,N,N,N),
AMOMAX_W-> List(Y, BR_N, REN_Y,REN_Y,A2_0, A1_RS1,DW_XPR,FN_ADD, M_Y,M_XA_MAX, MT_W, N,MUL_X, N,DIV_X, WEN_Y,WA_RD,WB_ALU,REN_N,WEN_N,I_X ,SYNC_N,N,N,N,N),
AMOMAXU_W->List(Y, BR_N, REN_Y,REN_Y,A2_0, A1_RS1,DW_XPR,FN_ADD, M_Y,M_XA_MAXU,MT_W, N,MUL_X, N,DIV_X, WEN_Y,WA_RD,WB_ALU,REN_N,WEN_N,I_X ,SYNC_N,N,N,N,N),
AMOADD_D-> List(xpr64, BR_N, REN_Y,REN_Y,A2_0, A1_RS1,DW_XPR,FN_ADD, M_Y,M_XA_ADD, MT_D, N,MUL_X, N,DIV_X, WEN_Y,WA_RD,WB_ALU,REN_N,WEN_N,I_X ,SYNC_N,N,N,N,N),
AMOSWAP_D->List(xpr64, BR_N, REN_Y,REN_Y,A2_0, A1_RS1,DW_XPR,FN_ADD, M_Y,M_XA_SWAP,MT_D, N,MUL_X, N,DIV_X, WEN_Y,WA_RD,WB_ALU,REN_N,WEN_N,I_X ,SYNC_N,N,N,N,N),
AMOAND_D-> List(xpr64, BR_N, REN_Y,REN_Y,A2_0, A1_RS1,DW_XPR,FN_ADD, M_Y,M_XA_AND, MT_D, N,MUL_X, N,DIV_X, WEN_Y,WA_RD,WB_ALU,REN_N,WEN_N,I_X ,SYNC_N,N,N,N,N),
AMOOR_D-> List(xpr64, BR_N, REN_Y,REN_Y,A2_0, A1_RS1,DW_XPR,FN_ADD, M_Y,M_XA_OR, MT_D, N,MUL_X, N,DIV_X, WEN_Y,WA_RD,WB_ALU,REN_N,WEN_N,I_X ,SYNC_N,N,N,N,N),
AMOMIN_D-> List(xpr64, BR_N, REN_Y,REN_Y,A2_0, A1_RS1,DW_XPR,FN_ADD, M_Y,M_XA_MIN, MT_D, N,MUL_X, N,DIV_X, WEN_Y,WA_RD,WB_ALU,REN_N,WEN_N,I_X ,SYNC_N,N,N,N,N),
AMOMINU_D->List(xpr64, BR_N, REN_Y,REN_Y,A2_0, A1_RS1,DW_XPR,FN_ADD, M_Y,M_XA_MINU,MT_D, N,MUL_X, N,DIV_X, WEN_Y,WA_RD,WB_ALU,REN_N,WEN_N,I_X ,SYNC_N,N,N,N,N),
AMOMAX_D-> List(xpr64, BR_N, REN_Y,REN_Y,A2_0, A1_RS1,DW_XPR,FN_ADD, M_Y,M_XA_MAX, MT_D, N,MUL_X, N,DIV_X, WEN_Y,WA_RD,WB_ALU,REN_N,WEN_N,I_X ,SYNC_N,N,N,N,N),
AMOMAXU_D->List(xpr64, BR_N, REN_Y,REN_Y,A2_0, A1_RS1,DW_XPR,FN_ADD, M_Y,M_XA_MAXU,MT_D, N,MUL_X, N,DIV_X, WEN_Y,WA_RD,WB_ALU,REN_N,WEN_N,I_X ,SYNC_N,N,N,N,N),
AMOADD_W-> List(Y, BR_N, REN_Y,REN_Y,A2_ZERO, DW_XPR,FN_ADD, M_Y,M_XA_ADD, MT_W, N,MUL_X, N,DIV_X, WEN_Y,WA_RD,WB_ALU,REN_N,WEN_N,I_X ,SYNC_N,N,N,N,N),
AMOSWAP_W->List(Y, BR_N, REN_Y,REN_Y,A2_ZERO, DW_XPR,FN_ADD, M_Y,M_XA_SWAP,MT_W, N,MUL_X, N,DIV_X, WEN_Y,WA_RD,WB_ALU,REN_N,WEN_N,I_X ,SYNC_N,N,N,N,N),
AMOAND_W-> List(Y, BR_N, REN_Y,REN_Y,A2_ZERO, DW_XPR,FN_ADD, M_Y,M_XA_AND, MT_W, N,MUL_X, N,DIV_X, WEN_Y,WA_RD,WB_ALU,REN_N,WEN_N,I_X ,SYNC_N,N,N,N,N),
AMOOR_W-> List(Y, BR_N, REN_Y,REN_Y,A2_ZERO, DW_XPR,FN_ADD, M_Y,M_XA_OR, MT_W, N,MUL_X, N,DIV_X, WEN_Y,WA_RD,WB_ALU,REN_N,WEN_N,I_X ,SYNC_N,N,N,N,N),
AMOMIN_W-> List(Y, BR_N, REN_Y,REN_Y,A2_ZERO, DW_XPR,FN_ADD, M_Y,M_XA_MIN, MT_W, N,MUL_X, N,DIV_X, WEN_Y,WA_RD,WB_ALU,REN_N,WEN_N,I_X ,SYNC_N,N,N,N,N),
AMOMINU_W->List(Y, BR_N, REN_Y,REN_Y,A2_ZERO, DW_XPR,FN_ADD, M_Y,M_XA_MINU,MT_W, N,MUL_X, N,DIV_X, WEN_Y,WA_RD,WB_ALU,REN_N,WEN_N,I_X ,SYNC_N,N,N,N,N),
AMOMAX_W-> List(Y, BR_N, REN_Y,REN_Y,A2_ZERO, DW_XPR,FN_ADD, M_Y,M_XA_MAX, MT_W, N,MUL_X, N,DIV_X, WEN_Y,WA_RD,WB_ALU,REN_N,WEN_N,I_X ,SYNC_N,N,N,N,N),
AMOMAXU_W->List(Y, BR_N, REN_Y,REN_Y,A2_ZERO, DW_XPR,FN_ADD, M_Y,M_XA_MAXU,MT_W, N,MUL_X, N,DIV_X, WEN_Y,WA_RD,WB_ALU,REN_N,WEN_N,I_X ,SYNC_N,N,N,N,N),
AMOADD_D-> List(xpr64, BR_N, REN_Y,REN_Y,A2_ZERO, DW_XPR,FN_ADD, M_Y,M_XA_ADD, MT_D, N,MUL_X, N,DIV_X, WEN_Y,WA_RD,WB_ALU,REN_N,WEN_N,I_X ,SYNC_N,N,N,N,N),
AMOSWAP_D->List(xpr64, BR_N, REN_Y,REN_Y,A2_ZERO, DW_XPR,FN_ADD, M_Y,M_XA_SWAP,MT_D, N,MUL_X, N,DIV_X, WEN_Y,WA_RD,WB_ALU,REN_N,WEN_N,I_X ,SYNC_N,N,N,N,N),
AMOAND_D-> List(xpr64, BR_N, REN_Y,REN_Y,A2_ZERO, DW_XPR,FN_ADD, M_Y,M_XA_AND, MT_D, N,MUL_X, N,DIV_X, WEN_Y,WA_RD,WB_ALU,REN_N,WEN_N,I_X ,SYNC_N,N,N,N,N),
AMOOR_D-> List(xpr64, BR_N, REN_Y,REN_Y,A2_ZERO, DW_XPR,FN_ADD, M_Y,M_XA_OR, MT_D, N,MUL_X, N,DIV_X, WEN_Y,WA_RD,WB_ALU,REN_N,WEN_N,I_X ,SYNC_N,N,N,N,N),
AMOMIN_D-> List(xpr64, BR_N, REN_Y,REN_Y,A2_ZERO, DW_XPR,FN_ADD, M_Y,M_XA_MIN, MT_D, N,MUL_X, N,DIV_X, WEN_Y,WA_RD,WB_ALU,REN_N,WEN_N,I_X ,SYNC_N,N,N,N,N),
AMOMINU_D->List(xpr64, BR_N, REN_Y,REN_Y,A2_ZERO, DW_XPR,FN_ADD, M_Y,M_XA_MINU,MT_D, N,MUL_X, N,DIV_X, WEN_Y,WA_RD,WB_ALU,REN_N,WEN_N,I_X ,SYNC_N,N,N,N,N),
AMOMAX_D-> List(xpr64, BR_N, REN_Y,REN_Y,A2_ZERO, DW_XPR,FN_ADD, M_Y,M_XA_MAX, MT_D, N,MUL_X, N,DIV_X, WEN_Y,WA_RD,WB_ALU,REN_N,WEN_N,I_X ,SYNC_N,N,N,N,N),
AMOMAXU_D->List(xpr64, BR_N, REN_Y,REN_Y,A2_ZERO, DW_XPR,FN_ADD, M_Y,M_XA_MAXU,MT_D, N,MUL_X, N,DIV_X, WEN_Y,WA_RD,WB_ALU,REN_N,WEN_N,I_X ,SYNC_N,N,N,N,N),
LUI-> List(Y, BR_N, REN_N,REN_Y,A2_0, A1_LUI,DW_XPR,FN_ADD, M_N,M_X, MT_X, N,MUL_X, N,DIV_X, WEN_Y,WA_RD,WB_ALU,REN_N,WEN_N,I_X ,SYNC_N,N,N,N,N),
SLTI -> List(Y, BR_N, REN_N,REN_Y,A2_SEXT, A1_RS1,DW_XPR,FN_SLT, M_N,M_X, MT_X, N,MUL_X, N,DIV_X, WEN_Y,WA_RD,WB_ALU,REN_N,WEN_N,I_X ,SYNC_N,N,N,N,N),
SLTIU-> List(Y, BR_N, REN_N,REN_Y,A2_SEXT, A1_RS1,DW_XPR,FN_SLTU,M_N,M_X, MT_X, N,MUL_X, N,DIV_X, WEN_Y,WA_RD,WB_ALU,REN_N,WEN_N,I_X ,SYNC_N,N,N,N,N),
ANDI-> List(Y, BR_N, REN_N,REN_Y,A2_SEXT, A1_RS1,DW_XPR,FN_AND, M_N,M_X, MT_X, N,MUL_X, N,DIV_X, WEN_Y,WA_RD,WB_ALU,REN_N,WEN_N,I_X ,SYNC_N,N,N,N,N),
ORI-> List(Y, BR_N, REN_N,REN_Y,A2_SEXT, A1_RS1,DW_XPR,FN_OR, M_N,M_X, MT_X, N,MUL_X, N,DIV_X, WEN_Y,WA_RD,WB_ALU,REN_N,WEN_N,I_X ,SYNC_N,N,N,N,N),
XORI-> List(Y, BR_N, REN_N,REN_Y,A2_SEXT, A1_RS1,DW_XPR,FN_XOR, M_N,M_X, MT_X, N,MUL_X, N,DIV_X, WEN_Y,WA_RD,WB_ALU,REN_N,WEN_N,I_X ,SYNC_N,N,N,N,N),
SLLI-> List(Y, BR_N, REN_N,REN_Y,A2_SEXT, A1_RS1,DW_XPR,FN_SL, M_N,M_X, MT_X, N,MUL_X, N,DIV_X, WEN_Y,WA_RD,WB_ALU,REN_N,WEN_N,I_X ,SYNC_N,N,N,N,N),
SRLI-> List(Y_SH, BR_N, REN_N,REN_Y,A2_SEXT, A1_RS1,DW_XPR,FN_SR, M_N,M_X, MT_X, N,MUL_X, N,DIV_X, WEN_Y,WA_RD,WB_ALU,REN_N,WEN_N,I_X ,SYNC_N,N,N,N,N),
SRAI-> List(Y_SH, BR_N, REN_N,REN_Y,A2_SEXT, A1_RS1,DW_XPR,FN_SRA, M_N,M_X, MT_X, N,MUL_X, N,DIV_X, WEN_Y,WA_RD,WB_ALU,REN_N,WEN_N,I_X ,SYNC_N,N,N,N,N),
ADD-> List(Y, BR_N, REN_Y,REN_Y,A2_RS2, A1_RS1,DW_XPR,FN_ADD, M_N,M_X, MT_X, N,MUL_X, N,DIV_X, WEN_Y,WA_RD,WB_ALU,REN_N,WEN_N,I_X ,SYNC_N,N,N,N,N),
SUB-> List(Y, BR_N, REN_Y,REN_Y,A2_RS2, A1_RS1,DW_XPR,FN_SUB, M_N,M_X, MT_X, N,MUL_X, N,DIV_X, WEN_Y,WA_RD,WB_ALU,REN_N,WEN_N,I_X ,SYNC_N,N,N,N,N),
SLT-> List(Y, BR_N, REN_Y,REN_Y,A2_RS2, A1_RS1,DW_XPR,FN_SLT, M_N,M_X, MT_X, N,MUL_X, N,DIV_X, WEN_Y,WA_RD,WB_ALU,REN_N,WEN_N,I_X ,SYNC_N,N,N,N,N),
SLTU-> List(Y, BR_N, REN_Y,REN_Y,A2_RS2, A1_RS1,DW_XPR,FN_SLTU,M_N,M_X, MT_X, N,MUL_X, N,DIV_X, WEN_Y,WA_RD,WB_ALU,REN_N,WEN_N,I_X ,SYNC_N,N,N,N,N),
riscvAND-> List(Y, BR_N, REN_Y,REN_Y,A2_RS2, A1_RS1,DW_XPR,FN_AND, M_N,M_X, MT_X, N,MUL_X, N,DIV_X, WEN_Y,WA_RD,WB_ALU,REN_N,WEN_N,I_X ,SYNC_N,N,N,N,N),
riscvOR-> List(Y, BR_N, REN_Y,REN_Y,A2_RS2, A1_RS1,DW_XPR,FN_OR, M_N,M_X, MT_X, N,MUL_X, N,DIV_X, WEN_Y,WA_RD,WB_ALU,REN_N,WEN_N,I_X ,SYNC_N,N,N,N,N),
riscvXOR-> List(Y, BR_N, REN_Y,REN_Y,A2_RS2, A1_RS1,DW_XPR,FN_XOR, M_N,M_X, MT_X, N,MUL_X, N,DIV_X, WEN_Y,WA_RD,WB_ALU,REN_N,WEN_N,I_X ,SYNC_N,N,N,N,N),
SLL-> List(Y, BR_N, REN_Y,REN_Y,A2_RS2, A1_RS1,DW_XPR,FN_SL, M_N,M_X, MT_X, N,MUL_X, N,DIV_X, WEN_Y,WA_RD,WB_ALU,REN_N,WEN_N,I_X ,SYNC_N,N,N,N,N),
SRL-> List(Y, BR_N, REN_Y,REN_Y,A2_RS2, A1_RS1,DW_XPR,FN_SR, M_N,M_X, MT_X, N,MUL_X, N,DIV_X, WEN_Y,WA_RD,WB_ALU,REN_N,WEN_N,I_X ,SYNC_N,N,N,N,N),
SRA-> List(Y, BR_N, REN_Y,REN_Y,A2_RS2, A1_RS1,DW_XPR,FN_SRA, M_N,M_X, MT_X, N,MUL_X, N,DIV_X, WEN_Y,WA_RD,WB_ALU,REN_N,WEN_N,I_X ,SYNC_N,N,N,N,N),
LUI-> List(Y, BR_N, REN_N,REN_N,A2_LTYPE,DW_XPR,FN_OP2, M_N,M_X, MT_X, N,MUL_X, N,DIV_X, WEN_Y,WA_RD,WB_ALU,REN_N,WEN_N,I_X ,SYNC_N,N,N,N,N),
ADDI-> List(Y, BR_N, REN_N,REN_Y,A2_ITYPE,DW_XPR,FN_ADD, M_N,M_X, MT_X, N,MUL_X, N,DIV_X, WEN_Y,WA_RD,WB_ALU,REN_N,WEN_N,I_X ,SYNC_N,N,N,N,N),
SLTI -> List(Y, BR_N, REN_N,REN_Y,A2_ITYPE,DW_XPR,FN_SLT, M_N,M_X, MT_X, N,MUL_X, N,DIV_X, WEN_Y,WA_RD,WB_ALU,REN_N,WEN_N,I_X ,SYNC_N,N,N,N,N),
SLTIU-> List(Y, BR_N, REN_N,REN_Y,A2_ITYPE,DW_XPR,FN_SLTU,M_N,M_X, MT_X, N,MUL_X, N,DIV_X, WEN_Y,WA_RD,WB_ALU,REN_N,WEN_N,I_X ,SYNC_N,N,N,N,N),
ANDI-> List(Y, BR_N, REN_N,REN_Y,A2_ITYPE,DW_XPR,FN_AND, M_N,M_X, MT_X, N,MUL_X, N,DIV_X, WEN_Y,WA_RD,WB_ALU,REN_N,WEN_N,I_X ,SYNC_N,N,N,N,N),
ORI-> List(Y, BR_N, REN_N,REN_Y,A2_ITYPE,DW_XPR,FN_OR, M_N,M_X, MT_X, N,MUL_X, N,DIV_X, WEN_Y,WA_RD,WB_ALU,REN_N,WEN_N,I_X ,SYNC_N,N,N,N,N),
XORI-> List(Y, BR_N, REN_N,REN_Y,A2_ITYPE,DW_XPR,FN_XOR, M_N,M_X, MT_X, N,MUL_X, N,DIV_X, WEN_Y,WA_RD,WB_ALU,REN_N,WEN_N,I_X ,SYNC_N,N,N,N,N),
SLLI-> List(Y, BR_N, REN_N,REN_Y,A2_ITYPE,DW_XPR,FN_SL, M_N,M_X, MT_X, N,MUL_X, N,DIV_X, WEN_Y,WA_RD,WB_ALU,REN_N,WEN_N,I_X ,SYNC_N,N,N,N,N),
SRLI-> List(Y_SH, BR_N, REN_N,REN_Y,A2_ITYPE,DW_XPR,FN_SR, M_N,M_X, MT_X, N,MUL_X, N,DIV_X, WEN_Y,WA_RD,WB_ALU,REN_N,WEN_N,I_X ,SYNC_N,N,N,N,N),
SRAI-> List(Y_SH, BR_N, REN_N,REN_Y,A2_ITYPE,DW_XPR,FN_SRA, M_N,M_X, MT_X, N,MUL_X, N,DIV_X, WEN_Y,WA_RD,WB_ALU,REN_N,WEN_N,I_X ,SYNC_N,N,N,N,N),
ADD-> List(Y, BR_N, REN_Y,REN_Y,A2_RTYPE,DW_XPR,FN_ADD, M_N,M_X, MT_X, N,MUL_X, N,DIV_X, WEN_Y,WA_RD,WB_ALU,REN_N,WEN_N,I_X ,SYNC_N,N,N,N,N),
SUB-> List(Y, BR_N, REN_Y,REN_Y,A2_RTYPE,DW_XPR,FN_SUB, M_N,M_X, MT_X, N,MUL_X, N,DIV_X, WEN_Y,WA_RD,WB_ALU,REN_N,WEN_N,I_X ,SYNC_N,N,N,N,N),
SLT-> List(Y, BR_N, REN_Y,REN_Y,A2_RTYPE,DW_XPR,FN_SLT, M_N,M_X, MT_X, N,MUL_X, N,DIV_X, WEN_Y,WA_RD,WB_ALU,REN_N,WEN_N,I_X ,SYNC_N,N,N,N,N),
SLTU-> List(Y, BR_N, REN_Y,REN_Y,A2_RTYPE,DW_XPR,FN_SLTU,M_N,M_X, MT_X, N,MUL_X, N,DIV_X, WEN_Y,WA_RD,WB_ALU,REN_N,WEN_N,I_X ,SYNC_N,N,N,N,N),
riscvAND-> List(Y, BR_N, REN_Y,REN_Y,A2_RTYPE,DW_XPR,FN_AND, M_N,M_X, MT_X, N,MUL_X, N,DIV_X, WEN_Y,WA_RD,WB_ALU,REN_N,WEN_N,I_X ,SYNC_N,N,N,N,N),
riscvOR-> List(Y, BR_N, REN_Y,REN_Y,A2_RTYPE,DW_XPR,FN_OR, M_N,M_X, MT_X, N,MUL_X, N,DIV_X, WEN_Y,WA_RD,WB_ALU,REN_N,WEN_N,I_X ,SYNC_N,N,N,N,N),
riscvXOR-> List(Y, BR_N, REN_Y,REN_Y,A2_RTYPE,DW_XPR,FN_XOR, M_N,M_X, MT_X, N,MUL_X, N,DIV_X, WEN_Y,WA_RD,WB_ALU,REN_N,WEN_N,I_X ,SYNC_N,N,N,N,N),
SLL-> List(Y, BR_N, REN_Y,REN_Y,A2_RTYPE,DW_XPR,FN_SL, M_N,M_X, MT_X, N,MUL_X, N,DIV_X, WEN_Y,WA_RD,WB_ALU,REN_N,WEN_N,I_X ,SYNC_N,N,N,N,N),
SRL-> List(Y, BR_N, REN_Y,REN_Y,A2_RTYPE,DW_XPR,FN_SR, M_N,M_X, MT_X, N,MUL_X, N,DIV_X, WEN_Y,WA_RD,WB_ALU,REN_N,WEN_N,I_X ,SYNC_N,N,N,N,N),
SRA-> List(Y, BR_N, REN_Y,REN_Y,A2_RTYPE,DW_XPR,FN_SRA, M_N,M_X, MT_X, N,MUL_X, N,DIV_X, WEN_Y,WA_RD,WB_ALU,REN_N,WEN_N,I_X ,SYNC_N,N,N,N,N),
ADDIW-> List(xpr64, BR_N, REN_N,REN_Y,A2_SEXT, A1_RS1,DW_32,FN_ADD, M_N,M_X, MT_X, N,MUL_X, N,DIV_X, WEN_Y,WA_RD,WB_ALU,REN_N,WEN_N,I_X ,SYNC_N,N,N,N,N),
SLLIW-> List(xpr64, BR_N, REN_N,REN_Y,A2_SEXT, A1_RS1,DW_32,FN_SL, M_N,M_X, MT_X, N,MUL_X, N,DIV_X, WEN_Y,WA_RD,WB_ALU,REN_N,WEN_N,I_X ,SYNC_N,N,N,N,N),
SRLIW-> List(xpr64, BR_N, REN_N,REN_Y,A2_SEXT, A1_RS1,DW_32,FN_SR, M_N,M_X, MT_X, N,MUL_X, N,DIV_X, WEN_Y,WA_RD,WB_ALU,REN_N,WEN_N,I_X ,SYNC_N,N,N,N,N),
SRAIW-> List(xpr64, BR_N, REN_N,REN_Y,A2_SEXT, A1_RS1,DW_32,FN_SRA, M_N,M_X, MT_X, N,MUL_X, N,DIV_X, WEN_Y,WA_RD,WB_ALU,REN_N,WEN_N,I_X ,SYNC_N,N,N,N,N),
ADDW-> List(xpr64, BR_N, REN_Y,REN_Y,A2_RS2, A1_RS1,DW_32,FN_ADD, M_N,M_X, MT_X, N,MUL_X, N,DIV_X, WEN_Y,WA_RD,WB_ALU,REN_N,WEN_N,I_X ,SYNC_N,N,N,N,N),
SUBW-> List(xpr64, BR_N, REN_Y,REN_Y,A2_RS2, A1_RS1,DW_32,FN_SUB, M_N,M_X, MT_X, N,MUL_X, N,DIV_X, WEN_Y,WA_RD,WB_ALU,REN_N,WEN_N,I_X ,SYNC_N,N,N,N,N),
SLLW-> List(xpr64, BR_N, REN_Y,REN_Y,A2_RS2, A1_RS1,DW_32,FN_SL, M_N,M_X, MT_X, N,MUL_X, N,DIV_X, WEN_Y,WA_RD,WB_ALU,REN_N,WEN_N,I_X ,SYNC_N,N,N,N,N),
SRLW-> List(xpr64, BR_N, REN_Y,REN_Y,A2_RS2, A1_RS1,DW_32,FN_SR, M_N,M_X, MT_X, N,MUL_X, N,DIV_X, WEN_Y,WA_RD,WB_ALU,REN_N,WEN_N,I_X ,SYNC_N,N,N,N,N),
SRAW-> List(xpr64, BR_N, REN_Y,REN_Y,A2_RS2, A1_RS1,DW_32,FN_SRA, M_N,M_X, MT_X, N,MUL_X, N,DIV_X, WEN_Y,WA_RD,WB_ALU,REN_N,WEN_N,I_X ,SYNC_N,N,N,N,N),
ADDIW-> List(xpr64, BR_N, REN_N,REN_Y,A2_ITYPE,DW_32,FN_ADD, M_N,M_X, MT_X, N,MUL_X, N,DIV_X, WEN_Y,WA_RD,WB_ALU,REN_N,WEN_N,I_X ,SYNC_N,N,N,N,N),
SLLIW-> List(xpr64, BR_N, REN_N,REN_Y,A2_ITYPE,DW_32,FN_SL, M_N,M_X, MT_X, N,MUL_X, N,DIV_X, WEN_Y,WA_RD,WB_ALU,REN_N,WEN_N,I_X ,SYNC_N,N,N,N,N),
SRLIW-> List(xpr64, BR_N, REN_N,REN_Y,A2_ITYPE,DW_32,FN_SR, M_N,M_X, MT_X, N,MUL_X, N,DIV_X, WEN_Y,WA_RD,WB_ALU,REN_N,WEN_N,I_X ,SYNC_N,N,N,N,N),
SRAIW-> List(xpr64, BR_N, REN_N,REN_Y,A2_ITYPE,DW_32,FN_SRA, M_N,M_X, MT_X, N,MUL_X, N,DIV_X, WEN_Y,WA_RD,WB_ALU,REN_N,WEN_N,I_X ,SYNC_N,N,N,N,N),
ADDW-> List(xpr64, BR_N, REN_Y,REN_Y,A2_RTYPE,DW_32,FN_ADD, M_N,M_X, MT_X, N,MUL_X, N,DIV_X, WEN_Y,WA_RD,WB_ALU,REN_N,WEN_N,I_X ,SYNC_N,N,N,N,N),
SUBW-> List(xpr64, BR_N, REN_Y,REN_Y,A2_RTYPE,DW_32,FN_SUB, M_N,M_X, MT_X, N,MUL_X, N,DIV_X, WEN_Y,WA_RD,WB_ALU,REN_N,WEN_N,I_X ,SYNC_N,N,N,N,N),
SLLW-> List(xpr64, BR_N, REN_Y,REN_Y,A2_RTYPE,DW_32,FN_SL, M_N,M_X, MT_X, N,MUL_X, N,DIV_X, WEN_Y,WA_RD,WB_ALU,REN_N,WEN_N,I_X ,SYNC_N,N,N,N,N),
SRLW-> List(xpr64, BR_N, REN_Y,REN_Y,A2_RTYPE,DW_32,FN_SR, M_N,M_X, MT_X, N,MUL_X, N,DIV_X, WEN_Y,WA_RD,WB_ALU,REN_N,WEN_N,I_X ,SYNC_N,N,N,N,N),
SRAW-> List(xpr64, BR_N, REN_Y,REN_Y,A2_RTYPE,DW_32,FN_SRA, M_N,M_X, MT_X, N,MUL_X, N,DIV_X, WEN_Y,WA_RD,WB_ALU,REN_N,WEN_N,I_X ,SYNC_N,N,N,N,N),
MUL-> List(Y, BR_N, REN_Y,REN_Y,A2_X, A1_X, DW_XPR,FN_X, M_N,M_X, MT_X, Y,MUL_LO, N,DIV_X, WEN_Y,WA_RD,WB_X, REN_N,WEN_N,I_X ,SYNC_N,N,N,N,N),
MULH-> List(Y, BR_N, REN_Y,REN_Y,A2_X, A1_X, DW_XPR,FN_X, M_N,M_X, MT_X, Y,MUL_HS, N,DIV_X, WEN_Y,WA_RD,WB_X, REN_N,WEN_N,I_X ,SYNC_N,N,N,N,N),
MULHU-> List(Y, BR_N, REN_Y,REN_Y,A2_X, A1_X, DW_XPR,FN_X, M_N,M_X, MT_X, Y,MUL_HU, N,DIV_X, WEN_Y,WA_RD,WB_X, REN_N,WEN_N,I_X ,SYNC_N,N,N,N,N),
MULHSU-> List(Y, BR_N, REN_Y,REN_Y,A2_X, A1_X, DW_XPR,FN_X, M_N,M_X, MT_X, Y,MUL_HSU, N,DIV_X, WEN_Y,WA_RD,WB_X, REN_N,WEN_N,I_X ,SYNC_N,N,N,N,N),
MULW-> List(xpr64, BR_N, REN_Y,REN_Y,A2_X, A1_X, DW_32, FN_X, M_N,M_X, MT_X, Y,MUL_LO, N,DIV_X, WEN_Y,WA_RD,WB_X, REN_N,WEN_N,I_X ,SYNC_N,N,N,N,N),
MUL-> List(Y, BR_N, REN_Y,REN_Y,A2_X, DW_XPR,FN_X, M_N,M_X, MT_X, Y,MUL_LO, N,DIV_X, WEN_Y,WA_RD,WB_X, REN_N,WEN_N,I_X ,SYNC_N,N,N,N,N),
MULH-> List(Y, BR_N, REN_Y,REN_Y,A2_X, DW_XPR,FN_X, M_N,M_X, MT_X, Y,MUL_HS, N,DIV_X, WEN_Y,WA_RD,WB_X, REN_N,WEN_N,I_X ,SYNC_N,N,N,N,N),
MULHU-> List(Y, BR_N, REN_Y,REN_Y,A2_X, DW_XPR,FN_X, M_N,M_X, MT_X, Y,MUL_HU, N,DIV_X, WEN_Y,WA_RD,WB_X, REN_N,WEN_N,I_X ,SYNC_N,N,N,N,N),
MULHSU-> List(Y, BR_N, REN_Y,REN_Y,A2_X, DW_XPR,FN_X, M_N,M_X, MT_X, Y,MUL_HSU, N,DIV_X, WEN_Y,WA_RD,WB_X, REN_N,WEN_N,I_X ,SYNC_N,N,N,N,N),
MULW-> List(xpr64, BR_N, REN_Y,REN_Y,A2_X, DW_32, FN_X, M_N,M_X, MT_X, Y,MUL_LO, N,DIV_X, WEN_Y,WA_RD,WB_X, REN_N,WEN_N,I_X ,SYNC_N,N,N,N,N),
DIV-> List(Y, BR_N, REN_Y,REN_Y,A2_X, A1_X, DW_XPR,FN_X, M_N,M_X, MT_X, N,MUL_X, Y,DIV_D, WEN_Y,WA_RD,WB_X, REN_N,WEN_N,I_X ,SYNC_N,N,N,N,N),
DIVU-> List(Y, BR_N, REN_Y,REN_Y,A2_X, A1_X, DW_XPR,FN_X, M_N,M_X, MT_X, N,MUL_X, Y,DIV_DU, WEN_Y,WA_RD,WB_X, REN_N,WEN_N,I_X ,SYNC_N,N,N,N,N),
REM-> List(Y, BR_N, REN_Y,REN_Y,A2_X, A1_X, DW_XPR,FN_X, M_N,M_X, MT_X, N,MUL_X, Y,DIV_R, WEN_Y,WA_RD,WB_X, REN_N,WEN_N,I_X ,SYNC_N,N,N,N,N),
REMU-> List(Y, BR_N, REN_Y,REN_Y,A2_X, A1_X, DW_XPR,FN_X, M_N,M_X, MT_X, N,MUL_X, Y,DIV_RU, WEN_Y,WA_RD,WB_X, REN_N,WEN_N,I_X ,SYNC_N,N,N,N,N),
DIVW-> List(xpr64, BR_N, REN_Y,REN_Y,A2_X, A1_X, DW_32, FN_X, M_N,M_X, MT_X, N,MUL_X, Y,DIV_D, WEN_Y,WA_RD,WB_X, REN_N,WEN_N,I_X ,SYNC_N,N,N,N,N),
DIVUW-> List(xpr64, BR_N, REN_Y,REN_Y,A2_X, A1_X, DW_32, FN_X, M_N,M_X, MT_X, N,MUL_X, Y,DIV_DU, WEN_Y,WA_RD,WB_X, REN_N,WEN_N,I_X ,SYNC_N,N,N,N,N),
REMW-> List(xpr64, BR_N, REN_Y,REN_Y,A2_X, A1_X, DW_32, FN_X, M_N,M_X, MT_X, N,MUL_X, Y,DIV_R, WEN_Y,WA_RD,WB_X, REN_N,WEN_N,I_X ,SYNC_N,N,N,N,N),
REMUW-> List(xpr64, BR_N, REN_Y,REN_Y,A2_X, A1_X, DW_32, FN_X, M_N,M_X, MT_X, N,MUL_X, Y,DIV_RU, WEN_Y,WA_RD,WB_X, REN_N,WEN_N,I_X ,SYNC_N,N,N,N,N),
DIV-> List(Y, BR_N, REN_Y,REN_Y,A2_X, DW_XPR,FN_X, M_N,M_X, MT_X, N,MUL_X, Y,DIV_D, WEN_Y,WA_RD,WB_X, REN_N,WEN_N,I_X ,SYNC_N,N,N,N,N),
DIVU-> List(Y, BR_N, REN_Y,REN_Y,A2_X, DW_XPR,FN_X, M_N,M_X, MT_X, N,MUL_X, Y,DIV_DU, WEN_Y,WA_RD,WB_X, REN_N,WEN_N,I_X ,SYNC_N,N,N,N,N),
REM-> List(Y, BR_N, REN_Y,REN_Y,A2_X, DW_XPR,FN_X, M_N,M_X, MT_X, N,MUL_X, Y,DIV_R, WEN_Y,WA_RD,WB_X, REN_N,WEN_N,I_X ,SYNC_N,N,N,N,N),
REMU-> List(Y, BR_N, REN_Y,REN_Y,A2_X, DW_XPR,FN_X, M_N,M_X, MT_X, N,MUL_X, Y,DIV_RU, WEN_Y,WA_RD,WB_X, REN_N,WEN_N,I_X ,SYNC_N,N,N,N,N),
DIVW-> List(xpr64, BR_N, REN_Y,REN_Y,A2_X, DW_32, FN_X, M_N,M_X, MT_X, N,MUL_X, Y,DIV_D, WEN_Y,WA_RD,WB_X, REN_N,WEN_N,I_X ,SYNC_N,N,N,N,N),
DIVUW-> List(xpr64, BR_N, REN_Y,REN_Y,A2_X, DW_32, FN_X, M_N,M_X, MT_X, N,MUL_X, Y,DIV_DU, WEN_Y,WA_RD,WB_X, REN_N,WEN_N,I_X ,SYNC_N,N,N,N,N),
REMW-> List(xpr64, BR_N, REN_Y,REN_Y,A2_X, DW_32, FN_X, M_N,M_X, MT_X, N,MUL_X, Y,DIV_R, WEN_Y,WA_RD,WB_X, REN_N,WEN_N,I_X ,SYNC_N,N,N,N,N),
REMUW-> List(xpr64, BR_N, REN_Y,REN_Y,A2_X, DW_32, FN_X, M_N,M_X, MT_X, N,MUL_X, Y,DIV_RU, WEN_Y,WA_RD,WB_X, REN_N,WEN_N,I_X ,SYNC_N,N,N,N,N),
SYSCALL-> List(Y, BR_N, REN_N,REN_N,A2_X, A1_X, DW_X, FN_X, M_N,M_X, MT_X, N,MUL_X, N,DIV_X, WEN_N,WA_X, WB_X, REN_N,WEN_N,I_X ,SYNC_N,N,Y,N,N),
EI-> List(Y, BR_N, REN_N,REN_N,A2_X, A1_X, DW_X, FN_X, M_N,M_X, MT_X, N,MUL_X, N,DIV_X, WEN_N,WA_X, WB_X, REN_N,WEN_N,I_EI,SYNC_N,N,N,Y,Y),
DI-> List(Y, BR_N, REN_N,REN_N,A2_X, A1_X, DW_X, FN_X, M_N,M_X, MT_X, N,MUL_X, N,DIV_X, WEN_N,WA_X, WB_X, REN_N,WEN_N,I_DI,SYNC_N,N,N,Y,Y),
ERET-> List(Y, BR_N, REN_N,REN_N,A2_X, A1_X, DW_X, FN_X, M_N,M_X, MT_X, N,MUL_X, N,DIV_X, WEN_N,WA_X, WB_PCR,REN_N,WEN_N,I_X ,SYNC_N,Y,N,Y,N),
FENCE-> List(Y, BR_N, REN_N,REN_N,A2_X, A1_X, DW_X, FN_X, M_Y,M_FENCE, MT_X, N,MUL_X, N,DIV_X, WEN_N,WA_X, WB_X, REN_N,WEN_N,I_X ,SYNC_D,N,N,N,N),
FENCE_I-> List(Y, BR_N, REN_N,REN_N,A2_X, A1_X, DW_X, FN_X, M_Y,M_FLA, MT_X, N,MUL_X, N,DIV_X, WEN_N,WA_X, WB_X, REN_N,WEN_N,I_X ,SYNC_I,N,N,N,N),
CFLUSH-> List(Y, BR_N, REN_Y,REN_N,A2_X, A1_X, DW_X, FN_X, M_Y,M_FLA, MT_X, N,MUL_X, N,DIV_X, WEN_N,WA_X, WB_X, REN_N,WEN_N,I_X ,SYNC_N,N,N,Y,Y),
MFPCR-> List(Y, BR_N, REN_N,REN_N,A2_X, A1_X, DW_X, FN_X, M_N,M_X, MT_X, N,MUL_X, N,DIV_X, WEN_Y,WA_RD,WB_PCR,REN_Y,WEN_N,I_X ,SYNC_N,N,N,Y,N),
MTPCR-> List(Y, BR_N, REN_N,REN_Y,A2_X, A1_X, DW_X, FN_X, M_N,M_X, MT_X, N,MUL_X, N,DIV_X, WEN_N,WA_X, WB_X, REN_N,WEN_Y,I_X ,SYNC_N,N,N,Y,Y),
RDTIME-> List(Y, BR_N, REN_N,REN_Y,A2_SEXT, A1_RS1,DW_XPR,FN_ADD, M_N,M_X, MT_X, N,MUL_X, N,DIV_X, WEN_Y,WA_RD,WB_TSC,REN_N,WEN_N,I_X ,SYNC_N,N,N,N,N),
RDCYCLE-> List(Y, BR_N, REN_N,REN_Y,A2_SEXT, A1_RS1,DW_XPR,FN_ADD, M_N,M_X, MT_X, N,MUL_X, N,DIV_X, WEN_Y,WA_RD,WB_TSC,REN_N,WEN_N,I_X ,SYNC_N,N,N,N,N),
RDINSTRET->List(Y, BR_N, REN_N,REN_Y,A2_SEXT, A1_RS1,DW_XPR,FN_ADD, M_N,M_X, MT_X, N,MUL_X, N,DIV_X, WEN_Y,WA_RD,WB_IRT,REN_N,WEN_N,I_X ,SYNC_N,N,N,N,N),
SYSCALL-> List(Y, BR_N, REN_N,REN_N,A2_X, DW_X, FN_X, M_N,M_X, MT_X, N,MUL_X, N,DIV_X, WEN_N,WA_X, WB_X, REN_N,WEN_N,I_X ,SYNC_N,N,Y,N,N),
EI-> List(Y, BR_N, REN_N,REN_N,A2_X, DW_X, FN_X, M_N,M_X, MT_X, N,MUL_X, N,DIV_X, WEN_N,WA_X, WB_X, REN_N,WEN_N,I_EI,SYNC_N,N,N,Y,Y),
DI-> List(Y, BR_N, REN_N,REN_N,A2_X, DW_X, FN_X, M_N,M_X, MT_X, N,MUL_X, N,DIV_X, WEN_N,WA_X, WB_X, REN_N,WEN_N,I_DI,SYNC_N,N,N,Y,Y),
ERET-> List(Y, BR_N, REN_N,REN_N,A2_X, DW_X, FN_X, M_N,M_X, MT_X, N,MUL_X, N,DIV_X, WEN_N,WA_X, WB_PCR,REN_N,WEN_N,I_X ,SYNC_N,Y,N,Y,N),
FENCE-> List(Y, BR_N, REN_N,REN_N,A2_X, DW_X, FN_X, M_Y,M_FENCE, MT_X, N,MUL_X, N,DIV_X, WEN_N,WA_X, WB_X, REN_N,WEN_N,I_X ,SYNC_D,N,N,N,N),
FENCE_I-> List(Y, BR_N, REN_N,REN_N,A2_X, DW_X, FN_X, M_Y,M_FLA, MT_X, N,MUL_X, N,DIV_X, WEN_N,WA_X, WB_X, REN_N,WEN_N,I_X ,SYNC_I,N,N,N,N),
CFLUSH-> List(Y, BR_N, REN_Y,REN_N,A2_X, DW_X, FN_X, M_Y,M_FLA, MT_X, N,MUL_X, N,DIV_X, WEN_N,WA_X, WB_X, REN_N,WEN_N,I_X ,SYNC_N,N,N,Y,Y),
MFPCR-> List(Y, BR_N, REN_N,REN_N,A2_X, DW_X, FN_X, M_N,M_X, MT_X, N,MUL_X, N,DIV_X, WEN_Y,WA_RD,WB_PCR,REN_Y,WEN_N,I_X ,SYNC_N,N,N,Y,N),
MTPCR-> List(Y, BR_N, REN_N,REN_Y,A2_ZERO, DW_XPR,FN_ADD, M_N,M_X, MT_X, N,MUL_X, N,DIV_X, WEN_N,WA_X, WB_ALU,REN_N,WEN_Y,I_X ,SYNC_N,N,N,Y,Y),
RDTIME-> List(Y, BR_N, REN_N,REN_N,A2_X, DW_XPR,FN_X, M_N,M_X, MT_X, N,MUL_X, N,DIV_X, WEN_Y,WA_RD,WB_TSC,REN_N,WEN_N,I_X ,SYNC_N,N,N,N,N),
RDCYCLE-> List(Y, BR_N, REN_N,REN_N,A2_X, DW_XPR,FN_X, M_N,M_X, MT_X, N,MUL_X, N,DIV_X, WEN_Y,WA_RD,WB_TSC,REN_N,WEN_N,I_X ,SYNC_N,N,N,N,N),
RDINSTRET->List(Y, BR_N, REN_N,REN_N,A2_X, DW_XPR,FN_X, M_N,M_X, MT_X, N,MUL_X, N,DIV_X, WEN_Y,WA_RD,WB_IRT,REN_N,WEN_N,I_X ,SYNC_N,N,N,N,N),
// Instructions that have not yet been implemented
// Faking these for now so akaros will boot
//MFFSR-> List(Y, BR_N, REN_N,REN_N,A2_X, A1_X, DW_X, FN_X, M_N,M_X, MT_X, N,MUL_X, N,DIV_X, WEN_N,WA_X, WB_X, REN_N,WEN_N,I_X ,SYNC_N,N,N,N,N),
//MTFSR-> List(Y, BR_N, REN_N,REN_N,A2_X, A1_X, DW_X, FN_X, M_N,M_X, MT_X, N,MUL_X, N,DIV_X, WEN_N,WA_X, WB_X, REN_N,WEN_N,I_X ,SYNC_N,N,N,N,N),
FLW-> List(Y, BR_N, REN_N,REN_Y,A2_SEXT, A1_RS1,DW_XPR,FN_ADD, M_Y,M_XRD, MT_W, N,MUL_X, N,DIV_X, WEN_N,WA_X, WB_ALU,REN_N,WEN_N,I_X ,SYNC_N,N,N,N,N),
FLD-> List(Y, BR_N, REN_N,REN_Y,A2_SEXT, A1_RS1,DW_XPR,FN_ADD, M_Y,M_XRD, MT_D, N,MUL_X, N,DIV_X, WEN_N,WA_X, WB_ALU,REN_N,WEN_N,I_X ,SYNC_N,N,N,N,N),
FSW-> List(Y, BR_N, REN_N,REN_Y,A2_SPLIT,A1_RS1,DW_XPR,FN_ADD, M_Y,M_XWR, MT_W, N,MUL_X, N,DIV_X, WEN_N,WA_X, WB_ALU,REN_N,WEN_N,I_X ,SYNC_N,N,N,N,N),
FSD-> List(Y, BR_N, REN_N,REN_Y,A2_SPLIT,A1_RS1,DW_XPR,FN_ADD, M_Y,M_XWR, MT_D, N,MUL_X, N,DIV_X, WEN_N,WA_X, WB_ALU,REN_N,WEN_N,I_X ,SYNC_N,N,N,N,N)
//MFFSR-> List(Y, BR_N, REN_N,REN_N,A2_X, DW_X, FN_X, M_N,M_X, MT_X, N,MUL_X, N,DIV_X, WEN_N,WA_X, WB_X, REN_N,WEN_N,I_X ,SYNC_N,N,N,N,N),
//MTFSR-> List(Y, BR_N, REN_N,REN_N,A2_X, DW_X, FN_X, M_N,M_X, MT_X, N,MUL_X, N,DIV_X, WEN_N,WA_X, WB_X, REN_N,WEN_N,I_X ,SYNC_N,N,N,N,N),
FLW-> List(Y, BR_N, REN_N,REN_Y,A2_ITYPE,DW_XPR,FN_ADD, M_Y,M_XRD, MT_W, N,MUL_X, N,DIV_X, WEN_N,WA_X, WB_ALU,REN_N,WEN_N,I_X ,SYNC_N,N,N,N,N),
FLD-> List(Y, BR_N, REN_N,REN_Y,A2_ITYPE,DW_XPR,FN_ADD, M_Y,M_XRD, MT_D, N,MUL_X, N,DIV_X, WEN_N,WA_X, WB_ALU,REN_N,WEN_N,I_X ,SYNC_N,N,N,N,N),
FSW-> List(Y, BR_N, REN_N,REN_Y,A2_BTYPE,DW_XPR,FN_ADD, M_Y,M_XWR, MT_W, N,MUL_X, N,DIV_X, WEN_N,WA_X, WB_ALU,REN_N,WEN_N,I_X ,SYNC_N,N,N,N,N),
FSD-> List(Y, BR_N, REN_N,REN_Y,A2_BTYPE,DW_XPR,FN_ADD, M_Y,M_XWR, MT_D, N,MUL_X, N,DIV_X, WEN_N,WA_X, WB_ALU,REN_N,WEN_N,I_X ,SYNC_N,N,N,N,N)
/*
// floating point
FLW-> List(FPU_Y, BR_N, REN_N,REN_Y,A2_SEXT, A1_RS1,DW_XPR,FN_ADD, M_Y,M_FRD, MT_WU,N,MUL_X, N,DIV_X, WEN_N,WA_X, WB_X, REN_N,WEN_N,I_X ,SYNC_N,N,N,N),
FLD-> List(FPU_Y, BR_N, REN_N,REN_Y,A2_SEXT, A1_RS1,DW_XPR,FN_ADD, M_Y,M_FRD, MT_D, N,MUL_X, N,DIV_X, WEN_N,WA_X, WB_X, REN_N,WEN_N,I_X ,SYNC_N,N,N,N),
FSW-> List(FPU_Y, BR_N, REN_Y,REN_Y,A2_SPLIT,A1_RS1,DW_XPR,FN_ADD, M_Y,M_FWR, MT_W, N,MUL_X, N,DIV_X, WEN_N,WA_X, WB_X, REN_N,WEN_N,I_X ,SYNC_N,N,N,N),
FSD-> List(FPU_Y, BR_N, REN_Y,REN_Y,A2_SPLIT,A1_RS1,DW_XPR,FN_ADD, M_Y,M_FWR, MT_D, N,MUL_X, N,DIV_X, WEN_N,WA_X, WB_X, REN_N,WEN_N,I_X ,SYNC_N,N,N,N),
FLW-> List(FPU_Y, BR_N, REN_N,REN_Y,A2_ITYPE,DW_XPR,FN_ADD, M_Y,M_FRD, MT_WU,N,MUL_X, N,DIV_X, WEN_N,WA_X, WB_X, REN_N,WEN_N,I_X ,SYNC_N,N,N,N),
FLD-> List(FPU_Y, BR_N, REN_N,REN_Y,A2_ITYPE,DW_XPR,FN_ADD, M_Y,M_FRD, MT_D, N,MUL_X, N,DIV_X, WEN_N,WA_X, WB_X, REN_N,WEN_N,I_X ,SYNC_N,N,N,N),
FSW-> List(FPU_Y, BR_N, REN_Y,REN_Y,A2_BTYPE,DW_XPR,FN_ADD, M_Y,M_FWR, MT_W, N,MUL_X, N,DIV_X, WEN_N,WA_X, WB_X, REN_N,WEN_N,I_X ,SYNC_N,N,N,N),
FSD-> List(FPU_Y, BR_N, REN_Y,REN_Y,A2_BTYPE,DW_XPR,FN_ADD, M_Y,M_FWR, MT_D, N,MUL_X, N,DIV_X, WEN_N,WA_X, WB_X, REN_N,WEN_N,I_X ,SYNC_N,N,N,N),
*/
));
val if_reg_xcpt_ma_inst = Reg(io.dpath.xcpt_ma_inst, resetVal = Bool(false));
val id_int_val :: id_br_type :: id_renx2 :: id_renx1 :: id_sel_alu2 :: id_sel_alu1 :: id_fn_dw :: id_fn_alu :: csremainder = cs;
val id_int_val :: id_br_type :: id_renx2 :: id_renx1 :: id_sel_alu2 :: id_fn_dw :: id_fn_alu :: csremainder = cs;
val id_mem_val :: id_mem_cmd :: id_mem_type :: id_mul_val :: id_mul_fn :: id_div_val :: id_div_fn :: id_wen :: id_sel_wa :: id_sel_wb :: id_ren_pcr :: id_wen_pcr :: id_irq :: id_sync :: id_eret :: id_syscall :: id_privileged :: id_replay_next :: Nil = csremainder;
val id_raddr3 = io.dpath.inst(16,12);
@ -360,12 +356,6 @@ class rocketCtrl extends Component
ex_reg_mem_cmd <== id_mem_cmd;
ex_reg_mem_type <== id_mem_type;
val jr_taken = (ex_reg_br_type === BR_JR);
val j_taken = (ex_reg_br_type === BR_J);
io.dpath.ex_jmp := j_taken;
io.dpath.ex_jr := jr_taken;
val beq = io.dpath.br_eq;
val bne = ~io.dpath.br_eq;
val blt = io.dpath.br_lt;
@ -380,7 +370,8 @@ class rocketCtrl extends Component
(ex_reg_br_type === BR_LTU) & bltu |
(ex_reg_br_type === BR_GE) & bge |
(ex_reg_br_type === BR_GEU) & bgeu |
j_taken; // treat J/JAL like a taken branch
(ex_reg_br_type === BR_J) |
(ex_reg_br_type === BR_JR); // treat J/JAL/JALR like a taken branch
val mem_reg_div_mul_val = Reg(){Bool()};
val mem_reg_eret = Reg(){Bool()};
@ -526,8 +517,7 @@ class rocketCtrl extends Component
// control transfer from ex/mem
val ex_btb_match = ex_reg_btb_hit && io.dpath.btb_match
val br_jr_taken = br_taken || jr_taken
val take_pc_ex = !ex_btb_match && br_jr_taken || ex_reg_btb_hit && !br_jr_taken
val take_pc_ex = !ex_btb_match && br_taken || ex_reg_btb_hit && !br_taken
val take_pc_wb = wb_reg_replay || wb_reg_exception || wb_reg_eret;
take_pc <== take_pc_ex || take_pc_wb;
@ -563,14 +553,13 @@ class rocketCtrl extends Component
Mux(wb_reg_exception, PC_EVEC, // exception
Mux(wb_reg_replay, PC_WB, // replay
Mux(wb_reg_eret, PC_PCR, // eret instruction
Mux(ex_reg_btb_hit && !br_jr_taken, PC_EX4, // mispredicted not taken branch
Mux(ex_reg_btb_hit && !br_taken, PC_EX4, // mispredicted not taken branch
Mux(!ex_btb_match && br_taken, PC_BR, // mispredicted taken branch
Mux(!ex_btb_match && jr_taken, PC_JR, // mispredicted jump register
Mux(io.dpath.btb_hit, PC_BTB, // predicted PC from BTB
PC_4))))))); // PC+4
PC_4)))))); // PC+4
io.dpath.wen_btb := !ex_btb_match && br_jr_taken;
io.dpath.clr_btb := ex_reg_btb_hit && !br_jr_taken || id_reg_icmiss;
io.dpath.wen_btb := !ex_btb_match && br_taken;
io.dpath.clr_btb := ex_reg_btb_hit && !br_taken || id_reg_icmiss;
io.imem.req_val := take_pc_wb || !mem_reg_replay && !ex_reg_replay && (take_pc_ex || !id_reg_replay)
@ -645,7 +634,6 @@ class rocketCtrl extends Component
io.dpath.ren2 := id_renx2.toBool;
io.dpath.ren1 := id_renx1.toBool;
io.dpath.sel_alu2 := id_sel_alu2;
io.dpath.sel_alu1 := id_sel_alu1.toBool;
io.dpath.fn_dw := id_fn_dw.toBool;
io.dpath.fn_alu := id_fn_alu;
io.dpath.div_fn := id_div_fn;

77
rocket/src/main/scala/dpath.scala
View File

@ -75,13 +75,11 @@ class rocketDpath extends Component
// execute definitions
val ex_reg_valid = Reg(resetVal = Bool(false));
val ex_reg_pc = Reg() { UFix() };
val ex_reg_inst = Reg() { Bits() };
val ex_reg_raddr2 = Reg() { UFix() };
val ex_reg_op2 = Reg() { Bits() };
val ex_reg_rs2 = Reg() { Bits() };
val ex_reg_rs1 = Reg() { Bits() };
val ex_reg_waddr = Reg() { UFix() };
val ex_reg_ctrl_sel_alu2 = Reg() { UFix() };
val ex_reg_ctrl_sel_alu1 = Reg() { UFix() };
val ex_reg_ctrl_eret = Reg(resetVal = Bool(false));
val ex_reg_ctrl_fn_dw = Reg() { UFix() };
val ex_reg_ctrl_fn_alu = Reg() { UFix() };
@ -124,31 +122,23 @@ class rocketDpath extends Component
val if_pc_plus4 = if_reg_pc + UFix(4);
val ex_pc_plus4 = ex_reg_pc + UFix(4);
val ex_sign_extend =
Cat(Fill(52, ex_reg_inst(21)), ex_reg_inst(21,10));
val ex_sign_extend_split =
Cat(Fill(52, ex_reg_inst(31)), ex_reg_inst(31,27), ex_reg_inst(16,10));
val ex_branch_target = ex_reg_pc + Cat(ex_reg_op2, Bits(0,1)).toUFix
val branch_adder_rhs =
Mux(io.ctrl.ex_jmp, Cat(Fill(VADDR_BITS-25, ex_reg_inst(31)), ex_reg_inst(31,7), UFix(0,1)),
Cat(ex_sign_extend_split(VADDR_BITS-1,0), UFix(0, 1)));
val ex_branch_target = ex_reg_pc + branch_adder_rhs.toUFix;
val ex_jr_target_sign = Mux(ex_alu_adder_out(VADDR_BITS-1), ~ex_alu_adder_out(63,VADDR_BITS) === UFix(0), ex_alu_adder_out(63,VADDR_BITS) != UFix(0))
val ex_jr_target_extended = Cat(ex_jr_target_sign, ex_alu_adder_out(VADDR_BITS-1,0)).toUFix
val jr_br_target = Mux(io.ctrl.ex_jr, ex_jr_target_extended, ex_branch_target);
btb.io.correct_target := jr_br_target
val ex_ea_sign = Mux(ex_alu_adder_out(VADDR_BITS-1), ~ex_alu_adder_out(63,VADDR_BITS) === UFix(0), ex_alu_adder_out(63,VADDR_BITS) != UFix(0))
val ex_effective_address = Cat(ex_ea_sign, ex_alu_adder_out(VADDR_BITS-1,0)).toUFix
val ex_br_target_sel = Reg(io.ctrl.sel_alu2 === A2_BTYPE || io.ctrl.sel_alu2 === A2_JTYPE)
val ex_br_target = Mux(ex_br_target_sel, ex_branch_target, ex_effective_address)
btb.io.correct_target := ex_br_target
val if_next_pc =
Mux(io.ctrl.sel_pc === PC_BTB, Cat(if_btb_target(VADDR_BITS-1), if_btb_target),
Mux(io.ctrl.sel_pc === PC_EX4, ex_pc_plus4,
Mux(io.ctrl.sel_pc === PC_BR, ex_branch_target,
Mux(io.ctrl.sel_pc === PC_JR, ex_jr_target_extended,
Mux(io.ctrl.sel_pc === PC_BR, ex_br_target,
Mux(io.ctrl.sel_pc === PC_PCR, wb_reg_wdata(VADDR_BITS,0), // only used for ERET
Mux(io.ctrl.sel_pc === PC_EVEC, Cat(pcr.io.evec(VADDR_BITS-1), pcr.io.evec),
Mux(io.ctrl.sel_pc === PC_WB, wb_reg_pc,
if_pc_plus4))))))); // PC_4
if_pc_plus4)))))); // PC_4
when (!io.ctrl.stallf) {
if_reg_pc <== if_next_pc.toUFix;
@ -165,7 +155,7 @@ class rocketDpath extends Component
btb.io.wen <> io.ctrl.wen_btb;
btb.io.clr <> io.ctrl.clr_btb;
btb.io.correct_pc4 := ex_pc_plus4;
io.ctrl.btb_match := id_reg_pc === jr_br_target;
io.ctrl.btb_match := id_reg_pc === ex_br_target;
// instruction decode stage
when (!io.ctrl.stalld) {
@ -210,17 +200,33 @@ class rocketDpath extends Component
Mux((io.ctrl.wb_wen || wb_reg_ll_wb) && id_raddr2 === wb_reg_waddr, wb_wdata,
id_rdata2)));
// immediate generation
val id_imm_bj = io.ctrl.sel_alu2 === A2_BTYPE || io.ctrl.sel_alu2 === A2_JTYPE
val id_imm_l = io.ctrl.sel_alu2 === A2_LTYPE
val id_imm_zero = io.ctrl.sel_alu2 === A2_ZERO || io.ctrl.sel_alu2 === A2_RTYPE
val id_imm_ibz = io.ctrl.sel_alu2 === A2_ITYPE || io.ctrl.sel_alu2 === A2_BTYPE || id_imm_zero
val id_imm_sign = Mux(id_imm_bj, id_reg_inst(31),
Mux(id_imm_l, id_reg_inst(26),
Mux(id_imm_zero, Bits(0,1),
id_reg_inst(21)))) // IMM_ITYPE
val id_imm_small = Mux(id_imm_zero, Bits(0,12),
Cat(Mux(id_imm_bj, id_reg_inst(31,27), id_reg_inst(21,17)), id_reg_inst(16,10)))
val id_imm = Cat(Fill(32, id_imm_sign),
Mux(id_imm_l, Cat(id_reg_inst(26,7), Bits(0,12)),
Mux(id_imm_ibz, Cat(Fill(20, id_imm_sign), id_imm_small),
Cat(Fill(7, id_imm_sign), id_reg_inst(31,7))))) // A2_JTYPE
val id_op2 = Mux(io.ctrl.sel_alu2 === A2_RTYPE, id_rs2, id_imm)
io.ctrl.inst := id_reg_inst;
// execute stage
ex_reg_pc <== id_reg_pc;
ex_reg_inst <== id_reg_inst;
ex_reg_raddr2 <== id_raddr2;
ex_reg_op2 <== id_op2;
ex_reg_rs2 <== id_rs2;
ex_reg_rs1 <== id_rs1;
ex_reg_waddr <== id_waddr;
ex_reg_ctrl_sel_alu2 <== io.ctrl.sel_alu2;
ex_reg_ctrl_sel_alu1 <== io.ctrl.sel_alu1.toUFix;
ex_reg_ctrl_fn_dw <== io.ctrl.fn_dw.toUFix;
ex_reg_ctrl_fn_alu <== io.ctrl.fn_alu;
ex_reg_ctrl_mul_fn <== io.ctrl.mul_fn;
@ -243,24 +249,10 @@ class rocketDpath extends Component
ex_reg_ctrl_eret <== io.ctrl.id_eret;
}
val ex_alu_in2 =
Mux(ex_reg_ctrl_sel_alu2 === A2_SEXT, ex_sign_extend,
Mux(ex_reg_ctrl_sel_alu2 === A2_SPLIT, ex_sign_extend_split,
Mux(ex_reg_ctrl_sel_alu2 === A2_RS2, ex_reg_rs2,
UFix(0, 64)))); // A2_0
val ex_alu_in1 =
Mux(ex_reg_ctrl_sel_alu1 === A1_RS1, ex_reg_rs1,
Cat(Fill(32, ex_reg_inst(26)),ex_reg_inst(26,7),UFix(0, 12))); // A1_LUI
val ex_alu_shamt =
Cat(ex_alu_in2(5) & ex_reg_ctrl_fn_dw === DW_64, ex_alu_in2(4,0)).toUFix;
alu.io.dw := ex_reg_ctrl_fn_dw;
alu.io.fn := ex_reg_ctrl_fn_alu;
alu.io.shamt := ex_alu_shamt.toUFix;
alu.io.in2 := ex_alu_in2.toUFix;
alu.io.in1 := ex_alu_in1.toUFix;
alu.io.in2 := ex_reg_op2.toUFix;
alu.io.in1 := ex_reg_rs1.toUFix;
// divider
div.io.dw := ex_reg_ctrl_fn_dw;
@ -292,7 +284,7 @@ class rocketDpath extends Component
// D$ request interface (registered inside D$ module)
// other signals (req_val, req_rdy) connect to control module
io.dmem.req_addr := ex_jr_target_extended.toUFix;
io.dmem.req_addr := ex_effective_address.toUFix;
if (HAVE_FPU) {
io.dmem.req_data := Mux(io.ctrl.ex_fp_val, io.fpu.store_data, ex_reg_rs2)
io.dmem.req_tag := Cat(ex_reg_waddr, io.ctrl.ex_fp_val).toUFix
@ -335,12 +327,11 @@ class rocketDpath extends Component
// writeback select mux
ex_wdata :=
Mux(ex_reg_ctrl_wen_pcr, ex_reg_rs1,
Mux(ex_reg_ctrl_sel_wb === WB_PC, Cat(Fill(64-VADDR_BITS, ex_pc_plus4(VADDR_BITS-1)), ex_pc_plus4),
Mux(ex_reg_ctrl_sel_wb === WB_PCR, ex_pcr,
Mux(ex_reg_ctrl_sel_wb === WB_TSC, tsc_reg,
Mux(ex_reg_ctrl_sel_wb === WB_IRT, irt_reg,
ex_alu_out))))).toBits; // WB_ALU
ex_alu_out)))).toBits; // WB_ALU
// memory stage
mem_reg_pc <== ex_reg_pc;

33
rocket/src/main/scala/dpath_alu.scala
View File

@ -10,7 +10,6 @@ import Instructions._
class ioALU extends Bundle(){
val dw = UFix(1, INPUT);
val fn = UFix(4, INPUT);
val shamt = UFix(6, INPUT);
val in2 = UFix(64, INPUT);
val in1 = UFix(64, INPUT);
val out = UFix(64, OUTPUT);
@ -27,31 +26,31 @@ class rocketDpathALU extends Component
val sum = (io.in1 + adder_rhs + sub.toUFix)(63,0)
// SLT, SLTU
val less = Mux(io.in1(63) === io.in2(63), sum(63), io.in1(63))
val lessu = Mux(io.in1(63) === io.in2(63), sum(63), io.in2(63))
val less = Mux(io.in1(63) === io.in2(63), sum(63),
Mux(io.fn === FN_SLT, io.in1(63), io.in2(63)))
// SLL, SRL, SRA
val sra = (io.fn === FN_SRA)
val shamt = Cat(io.in2(5) & (io.dw === DW_64), io.in2(4,0)).toUFix
val shright = sra || (io.fn === FN_SR)
val shin_hi_32 = Mux(sra, Fill(32, io.in1(31)), UFix(0,32))
val shin_hi = Mux(io.dw === DW_64, io.in1(63,32), shin_hi_32)
val shin_r = Cat(shin_hi, io.in1(31,0))
val shin = Mux(shright, shin_r, Reverse(shin_r))
val shout_r = (Cat(sra & shin_r(63), shin).toFix >>> io.shamt)(63,0)
val shout_r = (Cat(sra & shin_r(63), shin).toFix >>> shamt)(63,0)
val out64 = Wire { Bits(64) }
switch(io.fn)
{
is(FN_ADD) { out64 <== sum }
is(FN_SUB) { out64 <== sum }
is(FN_SLT) { out64 <== less }
is(FN_SLTU) { out64 <== lessu }
is(FN_AND) { out64 <== io.in1 & io.in2 }
is(FN_OR) { out64 <== io.in1 | io.in2 }
is(FN_XOR) { out64 <== io.in1 ^ io.in2 }
is(FN_SL) { out64 <== Reverse(shout_r) }
}
out64 <== shout_r
val logic =
Mux(io.fn === FN_AND, io.in1 & io.in2,
Mux(io.fn === FN_OR, io.in1 | io.in2,
Mux(io.fn === FN_XOR, io.in1 ^ io.in2,
io.in2))) // FN_OP2
val out64 =
Mux(io.fn === FN_ADD || io.fn === FN_SUB, sum,
Mux(io.fn === FN_SLT || io.fn === FN_SLTU, less,
Mux(io.fn === FN_SR || io.fn === FN_SRA, shout_r,
Mux(io.fn === FN_SL, Reverse(shout_r),
logic))))
val out_hi = Mux(io.dw === DW_64, out64(63,32), Fill(32, out64(31)))
io.out := Cat(out_hi, out64(31,0)).toUFix