mirror of
https://github.com/irmen/prog8.git
synced 2024-08-12 13:28:57 +00:00
84 lines
1.7 KiB
Lua
84 lines
1.7 KiB
Lua
%import diskio
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%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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%option verafxmuls
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sub start() {
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word w1 = -123
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word w2 = 222
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ubyte b2 = 222
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byte sb2 = 111
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txt.print_w(w1*w2)
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txt.nl()
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txt.print_w(w1*222)
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txt.nl()
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w1 = -123
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w1 *= 222
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txt.print_w(w1)
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txt.nl()
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w1 = -123
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w1 *= w2
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txt.print_w(w1)
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txt.nl()
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w1 = -123
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w1 *= (w2-1)
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txt.print_w(w1)
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txt.nl()
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w1 = -123
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w1 *= b2
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txt.print_w(w1)
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txt.nl()
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w1 = -123
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w1 *= sb2
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txt.print_w(w1)
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txt.nl()
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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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