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comparison python/cortexm3.py @ 279:2ccd57b1d78c

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Fix register allocator to do burn2 OK
author Windel Bouwman
date Sat, 12 Oct 2013 09:56:23 +0200
parents 046017431c6a
children 02385f62f250
comparison
equal deleted inserted replaced
278:9fca39eebe50 279:2ccd57b1d78c
216 return u32(self.expr) 216 return u32(self.expr)
217 217
218 def __repr__(self): 218 def __repr__(self):
219 return 'DCD 0x{0:X}'.format(self.expr) 219 return 'DCD 0x{0:X}'.format(self.expr)
220 220
221 @armtarget.instruction
222 class nop_ins(ArmInstruction):
223 mnemonic = 'nop'
224 operands = tuple()
225
226 def encode(self):
227 return bytes()
228
229 def __repr__(self):
230 return 'NOP'
221 231
222 232
223 # Memory related 233 # Memory related
224 234
225 class LS_imm5_base(ArmInstruction): 235 class LS_imm5_base(ArmInstruction):
297 self.offset = 0 307 self.offset = 0
298 308
299 def encode(self): 309 def encode(self):
300 rt = self.rt.num 310 rt = self.rt.num
301 assert rt < 8 311 assert rt < 8
312 assert self.offset % 4 == 0
302 imm8 = self.offset >> 2 313 imm8 = self.offset >> 2
303 assert imm8 < 256 314 assert imm8 < 256
304 assert imm8 >= 0 315 assert imm8 >= 0
305 h = (0x9 << 11) | (rt << 8) | imm8 316 h = (0x9 << 11) | (rt << 8) | imm8
306 return u16(h) 317 return u16(h)
432 443
433 @armtarget.instruction 444 @armtarget.instruction
434 class mulregreg_ins(ArmInstruction): 445 class mulregreg_ins(ArmInstruction):
435 """ mul Rn, Rdm """ 446 """ mul Rn, Rdm """
436 operands = (Reg8Op, Reg8Op) 447 operands = (Reg8Op, Reg8Op)
437 mnemonic = 'mul' 448 mnemonic = 'MUL'
438 def __init__(self, rn, rdm): 449 def __init__(self, rn, rdm):
439 self.rn = rn 450 self.rn = rn
440 self.rdm = rdm 451 self.rdm = rdm
441 452
442 def encode(self): 453 def encode(self):