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54 lines
654 B
Plaintext
54 lines
654 B
Plaintext
#include "rom.h"
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#include "macros.h"
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#include "globals.h"
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* = $300 ; any address outside of page zero is okay because all code is relocatable
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CODE(DEMO)
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START
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CMN
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SET(R0, 9.4662)
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SET(R1, SQRT2)
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LDI(R7, R1)
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MUL(R7, R7, R7)
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PSH(R0)
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BRS(FACTORIAL)
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POP(R4)
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SET(R5, E)
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LDI(R6, R5)
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SET(R1, ZERO)
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INR(R1)
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SVI(R1, R6)
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LDI(R0, R1)
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ESC
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BRK
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BEGIN(FACTORIAL)
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POP(R1)
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SET(R2, 1)
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MOD(R3, R1, R2)
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SUB(R1, R1, R3)
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_1 TST(R1)
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BRZ(_2)
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MUL(R2, R2, R1)
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DCR(R1)
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BRA(_1)
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_2 PSH(R2)
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RTN
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END(FACTORIAL)
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END(DEMO)
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DATA(_)
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; preset constants
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DEFINE(PI, 3.14159)
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DEFINE(E, 2.71828)
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DEFINE(SQRT2, 1.41421)
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; working space
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RESERVE(2)
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END(_)
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