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annotate python/target/arm.brg @ 323:e9fe6988497c

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Used burg for generating expressions
author Windel Bouwman
date Thu, 30 Jan 2014 19:03:24 +0100
parents 44f336460c2a
children d1ecc493384e
rev   line source
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1
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2 from target.basetarget import Label, Comment, Alignment, LabelRef, DebugInfo, Nop
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3 from target.arminstructions import Orr, Lsl, Str2, Ldr2, Ldr3
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4 from target.arminstructions import B, Bl, Bgt, Blt, Beq, Bne
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5 from target.arminstructions import Mov2, Mov3
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6 from target.arminstructions import Add, Sub, Cmp, Sub2, Add2, Mul
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8 %%
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10 %terminal ADDI32 SUBI32 MULI32
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11 %terminal ORI32 SHLI32
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12 %terminal CONSTI32 MEMI32 REGI32 CALL
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13 %terminal MOVI32
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15 %%
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18 reg: ADDI32(reg, reg) 2 (. d = self.newTmp(); self.emit(Add, dst=[d], src=[$1, $2]); return d .)
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19 reg: SUBI32(reg, reg) 2 (. d = self.newTmp(); self.emit(Sub, dst=[d], src=[$1, $2]); return d .)
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20 reg: ORI32(reg, reg) 2 (. d = self.newTmp(); self.selector.move(d, $1); self.emit(Orr, dst=[], src=[d, $2]); return d .)
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21 reg: SHLI32(reg, reg) 2 (. d = self.newTmp(); self.selector.move(d, $1); self.emit(Lsl, dst=[], src=[d, $2]); return d .)
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22 reg: MULI32(reg, reg) 2 (. d = self.newTmp(); self.selector.move(d, $1); self.emit(Mul, dst=[d], src=[$2, d]); return d .)
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24 reg: CONSTI32 3 (. d = self.newTmp(); ln = LabelRef(self.selector.frame.addConstant($$.value)); self.emit(Ldr3, dst=[d], others=[ln]); return d .)
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25 reg: MEMI32(reg) 4 (. d = self.newTmp(); self.emit(Ldr2, dst=[d], src=[$1], others=[0]); return d .)
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26 reg: REGI32 1 (. return $$.value .)
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27 reg: CALL 1 (. return self.selector.munchCall($$.value) .)
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30 stmt: MOVI32(MEMI32(addr), reg) 3 (. self.emit(Str2, src=[$1, $2]) .)
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32 addr: reg 2 (. .)