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XLEN parameterization for simx

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This commit is contained in:
Santosh Srivatsan
2022-02-03 15:19:31 -05:00
parent 54dd2cfe1d
commit 836c777680
191 changed files with 5520 additions and 32163 deletions
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15
sim/common/bitmanip.h
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@@ -3,7 +3,6 @@
#include <cstdint>
#include <algorithm>
#include <assert.h>
#include "xlen.h"
constexpr uint32_t count_leading_zeros(uint32_t value) {
return value ? __builtin_clz(value) : 32;
@@ -88,9 +87,11 @@ inline uint64_t sext(uint64_t word, uint32_t width) {
return ((word >> (width - 1)) & 0x1) ? (word | ~mask) : word;
}
// change:
// Move this to another file later
inline uint64_t nan_box(uint32_t word) {
uintf_t mask = uintf_t(0xffffffff00000000);
return word | mask;
}
inline __uint128_t sext(__uint128_t word, uint32_t width) {
assert(width > 1);
assert(width <= 64);
__uint128_t unity = 1;
__uint128_t mask = (unity << width) - 1;
return ((word >> (width - 1)) & 0x1) ? (word | ~mask) : word;
}