| from runtime.types import Integer, InvalidShift |
|
|
| def band(a: Integer, b: Integer) -> Integer: |
| return Integer(a.value & b.value) |
|
|
| def bor(a: Integer, b: Integer) -> Integer: |
| return Integer(a.value | b.value) |
|
|
| def bxor(a: Integer, b: Integer) -> Integer: |
| return Integer(a.value ^ b.value) |
|
|
| def bnot(a: Integer, width: int = None) -> Integer: |
| if width is None: |
| return Integer(~a.value) |
| return Integer((~a.value) & ((1 << width) - 1)) |
|
|
| def shl(a: Integer, n: Integer) -> Integer: |
| if n.value < 0: raise InvalidShift("negative shift") |
| return Integer(a.value << n.value) |
|
|
| def shr(a: Integer, n: Integer) -> Integer: |
| if n.value < 0: raise InvalidShift("negative shift") |
| return Integer(a.value >> n.value) |
|
|
| def rotl(x: Integer, n: Integer, width: int) -> Integer: |
| if width <= 0: raise InvalidShift("invalid width") |
| nmod = n.value % width |
| mask = (1 << width) - 1 |
| v = x.value & mask |
| return Integer(((v << nmod) & mask) | ((v >> (width - nmod)) & mask)) |
|
|
| def rotr(x: Integer, n: Integer, width: int) -> Integer: |
| if width <= 0: raise InvalidShift("invalid width") |
| nmod = n.value % width |
| mask = (1 << width) - 1 |
| v = x.value & mask |
| return Integer(((v >> nmod) & mask) | ((v << (width - nmod)) & mask)) |
|
|
