riscv

commit 6e76c2772415b01db88491717914bfc99e8bcf5a
parent b6b3810842a068f27100369152fef579a38b8d82
Author: Brian Swetland <swetland@frotz.net>
Date:   Wed, 16 Oct 2019 15:12:39 -0700

fix typo in sltiu instruction and fix j immediate getter

Diffstat:
M
instab.txt
 | 
2
+-
M
riscv.h
 | 
2
+-

2 files changed, 2 insertions(+), 2 deletions(-)
diff --git a/instab.txt b/instab.txt
@@ -31,7 +31,7 @@
 000000000000-----000-----0010011 mv %d, %1
 -----------------000-----0010011 addi %d, %1, %i
 -----------------010-----0010011 slti %d, %1, %i
------------------011-----0010011 sltui %d, %1, %i
+-----------------011-----0010011 sltiu %d, %1, %i
 -----------------100-----0010011 xori %d, %1, %i
 -----------------110-----0010011 ori %d, %1, %i
 -----------------111-----0010011 andi %d, %1, %i
diff --git a/riscv.h b/riscv.h
@@ -28,7 +28,7 @@ static inline uint32_t get_iu(uint32_t ins) {
 	return ins & 0xFFFFF000;
 }
 static inline uint32_t get_ij(uint32_t ins) {
-	return (((int32_t)ins) >> 11) |
+	return (((int32_t)(ins & 0x80000000)) >> 11) |
 		(ins & 0xFF000) |
 		((ins >> 9) & 0x800) |
 		((ins >> 20) & 0x7fe);