Use addr statement in calculator.asm
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parent
117a2e24c2
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@ -1,8 +1,6 @@
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org 0
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start:
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cleq r0, r0, initStack
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load r0, lit01
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load r1, litff
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cleq r0, r0, pushWord
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@ -143,17 +141,17 @@ popWord:
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; trashes:
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; r0, r1, r2, r3
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pushByte:
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load r2, SPHigh
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load r2, SP+0
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store storeByteHigh, r2
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load r3, SPLow
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load r3, SP+1
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store storeByteLow, r3
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cleq r0, r0, storeByte
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load r0, SPHigh
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load r1, SPLow
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load r0, SP+0
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load r1, SP+1
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cleq r0, r0, incWord
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store SPHigh, r0
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store SPLow, r1
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store SP+0, r0
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store SP+1, r1
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ret
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@ -162,11 +160,11 @@ pushByte:
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; trashes:
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; r1, r2, r3
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popByte:
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load r0, SPHigh
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load r1, SPLow
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load r0, SP+0
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load r1, SP+1
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cleq r0, r0, decWord
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store SPHigh, r0
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store SPLow, r1
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store SP+0, r0
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store SP+1, r1
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store loadByteHigh, r0
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store loadByteLow, r1
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@ -695,18 +693,5 @@ litff: data ff
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; Stack
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; ==================================================================
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SPHigh: data 0
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SPLow: data 0
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; trashes:
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; r3
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initStack:
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load r3, initStackDummyLoad+1
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store SPHigh, r3
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load r3, initStackDummyLoad+2
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store SPLow, r3
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ret
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initStackDummyLoad: load r0, stackBase
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SP: addr stackBase
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stackBase:
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