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fix previous commit

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This commit is contained in:
Koichi Nakamura 2021-12-06 23:03:57 +09:00
parent b2fd58b688
commit 3656a1e5c9
1 changed files with 3 additions and 1 deletions
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others/planck.py
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@ -19,6 +19,7 @@ MEMORY_SIZE = 0x10000
memory = array.array('i', [0]*MEMORY_SIZE) memory = array.array('i', [0]*MEMORY_SIZE)
CELL = memory.itemsize CELL = memory.itemsize
CELLm1 = CELL - 1
CELL_SHIFT = CELL.bit_length() - 1 CELL_SHIFT = CELL.bit_length() - 1
STACK_SIZE = 0x100 STACK_SIZE = 0x100
@ -32,8 +33,9 @@ rp = (MEMORY_SIZE - STACK_SIZE) * CELL
ip = 0 ip = 0
np = 0 np = 0
ALIGN_MASK = CELL - 1
def aligned(n): def aligned(n):
return (n + CELL - 1) % CELL return (n + CELLm1) & ALIGN_MASK
def align(): def align():
write(HERE_CELL, aligned(read(HERE_CELL))) write(HERE_CELL, aligned(read(HERE_CELL)))