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Merged RV64IMFD extensions to master branch

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This commit is contained in:
Santosh Srivatsan
2021-12-11 17:06:29 -05:00
parent 3324b32a29
commit 885bb58ca9
10 changed files with 237 additions and 225 deletions
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12
sim/common/bitmanip.h
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@@ -78,16 +78,18 @@ inline uint32_t sext32(uint32_t word, uint32_t width) {
return ((word >> (width - 1)) & 0x1) ? (word | ~mask) : word;
}
inline uint32_t sext64(uint64_t word, uint32_t width) {
inline uint64_t sext64(uint64_t word, uint64_t width) {
assert(width > 1);
assert(width <= 64);
uint64_t mask = (1 << width) - 1;
return ((word >> (width - 1)) & 0x1) ? (word | ~mask) : word;
uint64_t unity = 1;
uint64_t mask = (unity << width) - 0x1;
return ((word >> (width - 0x1)) & 0x1) ? (word | ~mask) : word;
}
inline uint32_t sext128(__uint128_t word, uint32_t width) {
inline __uint128_t sext128(__uint128_t word, uint32_t width) {
assert(width > 1);
assert(width <= 128);
uint128_t mask = (1 << width) - 1;
__uint128_t unity = 1;
__uint128_t mask = (unity << width) - 1;
return ((word >> (width - 1)) & 0x1) ? (word | ~mask) : word;
}