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decode optimization

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This commit is contained in:
Blaise Tine
2021-06-28 05:06:30 -07:00
parent f84c8a0b5d
commit 6ae2f5199d
8 changed files with 132 additions and 165 deletions
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6
hw/rtl/VX_define.vh
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@@ -99,6 +99,8 @@
`define ALU_OP(x) x[`ALU_BITS-1:0]
`define ALU_OP_CLASS(x) x[3:2]
`define ALU_SIGNED(x) x[0]
`define ALU_IS_BR(x) x[0]
`define ALU_IS_MUL(x) x[1]
`define BR_EQ 4'b0000
`define BR_NE 4'b0010
@@ -119,7 +121,6 @@
`define BR_NEG(x) x[1]
`define BR_LESS(x) x[2]
`define BR_STATIC(x) x[3]
`define IS_BR_MOD(x) x[0]
`define MUL_MUL 3'h0
`define MUL_MULH 3'h1
@@ -131,8 +132,7 @@
`define MUL_REMU 3'h7
`define MUL_BITS 3
`define MUL_OP(x) x[`MUL_BITS-1:0]
`define IS_DIV_OP(x) x[2]
`define IS_MUL_MOD(x) x[1]
`define MUL_IS_DIV(x) x[2]
`define FMT_B 3'b000
`define FMT_H 3'b001