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comparison python/codegenarm.py @ 218:494828a7adf1

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added some sort of cache to assembler
author Windel Bouwman
date Fri, 05 Jul 2013 15:30:22 +0200
parents 62386bcee1ba
children 1fa3e0050b49
comparison
equal deleted inserted replaced
217:8b2e5f3cd579 218:494828a7adf1
1 import ir 1 import ir
2 from asmnodes import ALabel 2 from asmnodes import ALabel
3 import arm_cm3 as arm 3 import cortexm3 as arm
4 from ppci import CompilerError 4 from ppci import CompilerError
5 5
6 class ArmCodeGenerator: 6 class ArmCodeGenerator:
7 """ Simple code generator """ 7 """ Simple code generator """
8 def __init__(self, out): 8 def __init__(self, out):
22 self.emit(arm.dcd_ins(0)) 22 self.emit(arm.dcd_ins(0))
23 23
24 self.outs.selectSection('code') 24 self.outs.selectSection('code')
25 for f in ircode.Functions: 25 for f in ircode.Functions:
26 self.emit(ALabel(f.name)) 26 self.emit(ALabel(f.name))
27 self.emit(arm.push_ins(arm.RegisterSet({arm.r2, arm.r3,arm.lr}))) 27 # Save some registers:
28 self.emit(arm.push_ins(arm.RegisterSet({arm.r4, arm.r5, arm.r6,arm.r7,arm.lr})))
28 for bb in f.BasicBlocks: 29 for bb in f.BasicBlocks:
29 self.emit(ALabel(bb.name)) 30 self.emit(ALabel(bb.name))
30 for ins in bb.Instructions: 31 for ins in bb.Instructions:
31 self.generateInstruction(ins) 32 self.generateInstruction(ins)
32 33
41 elif type(ins) is ir.ImmLoad and ins.value < (2**32): 42 elif type(ins) is ir.ImmLoad and ins.value < (2**32):
42 print(ins) 43 print(ins)
43 elif type(ins) is ir.Store: 44 elif type(ins) is ir.Store:
44 print(ins) 45 print(ins)
45 elif type(ins) is ir.Return: 46 elif type(ins) is ir.Return:
46 self.emit(arm.pop_ins(arm.RegisterSet({arm.r2, arm.r3, arm.pc}))) 47 self.emit(arm.pop_ins(arm.RegisterSet({arm.r5, arm.r6, arm.pc})))
47 elif type(ins) is ir.Load: 48 elif type(ins) is ir.Load:
48 print(ins) 49 print(ins)
49 elif type(ins) is ir.BinaryOperator: 50 elif type(ins) is ir.BinaryOperator:
50 print(ins) 51 print(ins)
51 elif type(ins) is ir.ConditionalBranch: 52 elif type(ins) is ir.ConditionalBranch:
52 print(ins) 53 print(ins)
54 self.emit(arm.cmp_ins(arm.r1, arm.r0))
53 else: 55 else:
54 print(ins)
55 raise CompilerError('IR "{}" not covered'.format(ins)) 56 raise CompilerError('IR "{}" not covered'.format(ins))
56 57
57 58