Added FLEN parameterization for RV32/64 F and D instructions

sim/common/xlen.h

@@ -0,0 +1,35 @@
+#pragma once
+
+#ifndef XLEN
+#define XLEN 32
+#endif
+
+#ifndef FLEN
+#define FLEN 32
+#endif
+
+#if XLEN == 32
+#define uintx_t uint32_t
+#define intx_t int32_t
+#define intm_t int64_t
+#define uintm_t uint64_t
+#elif XLEN == 64
+#define uintx_t uint64_t
+#define intx_t int64_t
+#define intm_t __int128_t
+#define uintm_t __uint128_t
+#else
+#error unsupported XLEN
+#endif
+
+#if FLEN >= XLEN
+#if FLEN == 32
+#define uintf_t uint32_t
+#elif FLEN == 64
+#define uintf_t uint64_t
+#else
+#error unsupported FLEN
+#endif
+#else
+#error unsupported FLEN
+#endif