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Support setting ISA/subsets with --isa flag
[riscv-isa-sim.git]
/
riscv
/
insns
/
divw.h
diff --git
a/riscv/insns/divw.h
b/riscv/insns/divw.h
index 0654b490b8c3f3a081feb731a47fd1c91b3c013f..11be17e4c33d450244c42d98c99d2c31c8a35bd9 100644
(file)
--- a/
riscv/insns/divw.h
+++ b/
riscv/insns/divw.h
@@
-1,2
+1,8
@@
-RD = sext32(int32_t(RS1)/int32_t(RS2));
-
+require_extension('M');
+require_rv64;
+sreg_t lhs = sext32(RS1);
+sreg_t rhs = sext32(RS2);
+if(rhs == 0)
+ WRITE_RD(UINT64_MAX);
+else
+ WRITE_RD(sext32(lhs / rhs));