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-rw-r--r--chapter21/src/main/java/com/seaofnodes/simple/node/cpus/riscv/riscv.java3
1 files changed, 3 insertions, 0 deletions
diff --git a/chapter21/src/main/java/com/seaofnodes/simple/node/cpus/riscv/riscv.java b/chapter21/src/main/java/com/seaofnodes/simple/node/cpus/riscv/riscv.java
index 0d382c6d..7baef360 100644
--- a/chapter21/src/main/java/com/seaofnodes/simple/node/cpus/riscv/riscv.java
+++ b/chapter21/src/main/java/com/seaofnodes/simple/node/cpus/riscv/riscv.java
@@ -106,6 +106,9 @@ public class riscv extends Machine {
public static int OP = 0b01_100_11;
public static int OP_FP = 0b10_100_11;
public static int OP_CUSTOM0 = 0b00_010_11;
+ public static int OP_CUSTOM1 = 0b01_010_11;
+ public static int OP_CUSTOM2 = 0b10_010_11;
+ public static int OP_RESERVED= 0b11_010_11;
public static int OP_BRANCH = 0b11_000_11;
//I_type opcode: 0010 0011