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from .utils import *
# common preamble to add, sub, and, or
BINARY_COMMON_ASM = """@SP
AM=M-1
D=M
A=A-1
"""
# common preamble to neg and not
UNARY_COMMON_ASM = """@SP
A=M-1
"""
ARITH_LOGIC_ASM = {
"add": BINARY_COMMON_ASM + "M=D+M\n",
"sub": BINARY_COMMON_ASM + "M=M-D\n",
"and": BINARY_COMMON_ASM + "M=D&M\n",
"or": BINARY_COMMON_ASM + "M=D|M\n",
"neg": UNARY_COMMON_ASM + "M=-M\n",
"not": UNARY_COMMON_ASM + "M=!M\n",
}
def translate_arith_logic(command):
return ARITH_LOGIC_ASM[command]
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