Support setting ISA/subsets with --isa flag

[riscv-isa-sim.git] / riscv / insns / rem.h

diff --git a/riscv/insns/rem.h b/riscv/insns/rem.h
index ac82a56f4179219a30354d11a9e4531ee45569d4..858799577ccbc4875aa38932455c5d54261b545b 100644 (file)
--- a/riscv/insns/rem.h
+++ b/riscv/insns/rem.h
@@ -1,6 +1,9 @@
-if(RS2 == 0)
-  RD = RS1;
-else if(sreg_t(RS1) == INT64_MIN && sreg_t(RS2) == -1)
-  RD = 0;
+require_extension('M');
+sreg_t lhs = sext_xlen(RS1);
+sreg_t rhs = sext_xlen(RS2);
+if(rhs == 0)
+  WRITE_RD(lhs);
+else if(lhs == INT64_MIN && rhs == -1)
+  WRITE_RD(0);
 else
-  RD = sext_xprlen(sext_xprlen(RS1) % sext_xprlen(RS2));
+  WRITE_RD(sext_xlen(lhs % rhs));