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integer reduction unit

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joshua
2024-03-06 01:39:17 -08:00
parent 5f2b10b8a6
commit beb3dce46d
7 changed files with 587 additions and 10 deletions
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14
hw/rtl/VX_define.vh
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@@ -115,7 +115,7 @@
///////////////////////////////////////////////////////////////////////////////
`define INST_OP_BITS 4
`define INST_MOD_BITS 3
`define INST_MOD_BITS 4
`define INST_FMT_BITS 2
///////////////////////////////////////////////////////////////////////////////
@@ -140,6 +140,7 @@
`define INST_ALU_IS_BR(mod) mod[0]
`define INST_ALU_IS_M(mod) mod[1]
`define INST_ALU_IS_W(mod) mod[2]
`define INST_ALU_IS_RED(mod) mod[3]
`define INST_BR_EQ 4'b0000
`define INST_BR_NE 4'b0010
@@ -176,6 +177,17 @@
`define INST_M_SIGNED_A(op) (op[1:0] != 1)
`define INST_M_IS_REM(op) op[1]
`define INST_RED_ADD 4'b0000
`define INST_RED_ADDU 4'b1000
`define INST_RED_MIN 4'b0001
`define INST_RED_MINU 4'b1001
`define INST_RED_MAX 4'b0010
`define INST_RED_MAXU 4'b1010
`define INST_RED_AND 4'b0011
`define INST_RED_OR 4'b0100
`define INST_RED_XOR 4'b0101
`define INST_RED_BITS 4
`define INST_FMT_B 3'b000
`define INST_FMT_H 3'b001
`define INST_FMT_W 3'b010