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https://github.com/irmen/prog8.git
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54 lines
1.1 KiB
Lua
54 lines
1.1 KiB
Lua
%import textio
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%import math
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;%import verafx
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%zeropage basicsafe
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%option no_sysinit
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main {
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sub start() {
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txt.print_uw(math.mul16_last_upper())
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txt.nl()
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uword value1=5678
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uword value2=9999
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uword result = value1*value2
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uword upper16 = math.mul16_last_upper()
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txt.print_uw(result)
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txt.spc()
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txt.print_uw(upper16)
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txt.nl()
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; const word MULTIPLIER = 431
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;
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; ; verify results:
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; for value in -50 to 50 {
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; if value*MULTIPLIER != verafx.muls(value, MULTIPLIER) {
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; txt.print("verafx muls error\n")
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; sys.exit(1)
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; }
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; }
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;
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;
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; word value
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; txt.print("verafx muls...")
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; cbm.SETTIM(0,0,0)
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; for value in -50 to 50 {
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; repeat 250 void verafx.muls(value, MULTIPLIER)
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; }
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; txt.print_uw(cbm.RDTIM16())
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; txt.nl()
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;
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; txt.print("6502 muls...")
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; cbm.SETTIM(0,0,0)
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; for value in -50 to 50 {
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; repeat 250 cx16.r0s = value*MULTIPLIER
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; }
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; txt.print_uw(cbm.RDTIM16())
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; txt.nl()
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}
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}
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