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removed traces of xlen. Overloaded sext

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This commit is contained in:
Santosh Srivatsan
2022-02-01 13:54:51 -05:00
parent b23a9c76e7
commit 3eb2b71955
1 changed files with 8 additions and 14 deletions
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22
sim/common/bitmanip.h
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@@ -72,31 +72,25 @@ inline uint64_t bit_getw(uint64_t bits, uint32_t start, uint32_t end) {
} }
// Apply integer sign extension // Apply integer sign extension
inline uintx_t sext(uintx_t word, uint32_t width) { inline uint32_t sext(uint32_t word, uint32_t width) {
assert(width > 1); assert(width > 1);
assert(width <= 32); assert(width <= 32);
uintx_t unity = 1; uint64_t unity = 1;
uintx_t mask = (unity << width) - 1; uint32_t mask = (unity << width) - 1;
return ((word >> (width - 1)) & 0x1) ? (word | ~mask) : word; return ((word >> (width - 1)) & 0x1) ? (word | ~mask) : word;
} }
inline uint64_t sext64(uint64_t word, uint64_t width) { inline uint64_t sext(uint64_t word, uint32_t width) {
assert(width > 1); assert(width > 1);
assert(width <= 64); assert(width <= 64);
uint64_t unity = 1; __uint128_t unity = 1;
uint64_t mask = (unity << width) - 1; uint64_t mask = (unity << width) - 1;
return ((word >> (width - 1)) & 0x1) ? (word | ~mask) : word; return ((word >> (width - 1)) & 0x1) ? (word | ~mask) : word;
} }
inline uintm_t sext_mul(uintm_t word, uint32_t width) { // change:
assert(width > 1); // Move this to another file later
assert(width <= 32); inline uint64_t nan_box(uint32_t word) {
uintm_t unity = 1;
uintm_t mask = (unity << width) - 1;
return ((word >> (width - 1)) & 0x1) ? (word | ~mask) : word;
}
inline uintf_t nan_box(uint32_t word) {
uintf_t mask = uintf_t(0xffffffff00000000); uintf_t mask = uintf_t(0xffffffff00000000);
return word | mask; return word | mask;
} }