prog8/examples/arithmetic/wordbyte.p8

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%import textio
%import syslib
%zeropage basicsafe
main {
sub start() {
repeat 25 {
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txt.nl()
}
ubyte ub
byte bb
uword uwsum
word wsum
uwsum = 50000
ub=50
uwsum += ub
ub=250
uwsum += ub
if uwsum==50300
txt.print("1 ok\n")
else {
txt.print("1 fail:")
txt.print_uw(uwsum)
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txt.nl()
}
wsum = -30000
bb = 100
wsum += bb
bb = -50
wsum += bb
if wsum==-29950
txt.print("2 ok\n")
else {
txt.print("2 fail:")
txt.print_w(wsum)
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txt.nl()
}
uwsum = 50000
ub=50
uwsum -= ub
ub=250
uwsum -= ub
if uwsum==49700
txt.print("3 ok\n")
else {
txt.print("3 fail:")
txt.print_uw(uwsum)
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txt.nl()
}
wsum = -30000
bb = 100
wsum -= bb
bb = -50
wsum -= bb
if wsum==-30050
txt.print("4 ok\n")
else
txt.print("4 fail\n")
uwsum = 50000
bb=50
uwsum += bb as uword
bb=-100
uwsum += bb as uword
if uwsum==49950
txt.print("5 ok\n")
else
txt.print("5 fail\n")
uwsum = 50000
bb=50
uwsum -= bb as uword
bb=100
uwsum -= bb as uword
if uwsum==49850
txt.print("6 ok\n")
else {
txt.print("6 fail:")
txt.print_uw(uwsum)
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txt.nl()
}
wsum = -30000
ub = 50
wsum += ub
ub = 250
wsum += ub
if wsum==-29700
txt.print("7 ok\n")
else {
txt.print("7 fail:")
txt.print_w(wsum)
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txt.nl()
}
wsum = -30000
ub = 50
wsum -= ub
ub = 250
wsum -= ub
if wsum==-30300
txt.print("8 ok\n")
else {
txt.print("8 fail:")
txt.print_w(wsum)
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txt.nl()
}
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txt.nl()
uwsum = 50000
ub=0
uwsum += (50+ub)
uwsum += (250+ub)
if uwsum==50300
txt.print("1b ok\n")
else {
txt.print("1b fail:")
txt.print_uw(uwsum)
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txt.nl()
}
bb = 0
wsum = -30000
wsum += (100+bb)
wsum += (-50+bb)
if wsum==-29950
txt.print("2b ok\n")
else {
txt.print("2b fail:")
txt.print_w(wsum)
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txt.nl()
}
uwsum = 50000
uwsum -= (50+ub)
uwsum -= (250+ub)
if uwsum==49700
txt.print("3b ok\n")
else {
txt.print("3b fail:")
txt.print_uw(uwsum)
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txt.nl()
}
wsum = -30000
wsum -= (100+bb)
wsum -= (-50+bb)
if wsum==-30050
txt.print("4b ok\n")
else
txt.print("4b fail\n")
uwsum = 50000
uwsum += (50+bb) as uword
uwsum += (-100+bb) as uword
if uwsum==49950
txt.print("5b ok\n")
else
txt.print("5b fail\n")
uwsum = 50000
uwsum -= (50+bb) as uword
uwsum -= (100+bb) as uword
if uwsum==49850
txt.print("6b ok\n")
else {
txt.print("6b fail:")
txt.print_uw(uwsum)
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txt.nl()
}
wsum = -30000
wsum += (50+ub)
wsum += (250+ub)
if wsum==-29700
txt.print("7b ok\n")
else {
txt.print("7b fail:")
txt.print_w(wsum)
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txt.nl()
}
wsum = -30000
wsum -= (50+ub)
wsum -= (250+ub)
if wsum==-30300
txt.print("8b ok\n")
else {
txt.print("8b fail:")
txt.print_w(wsum)
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txt.nl()
}
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txt.nl()
uwsum = 50000
uwsum += 50
uwsum += 250
if uwsum==50300
txt.print("1c ok\n")
else {
txt.print("1c fail:")
txt.print_uw(uwsum)
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txt.nl()
}
wsum = -30000
wsum += 100
wsum += -50
if wsum==-29950
txt.print("2c ok\n")
else {
txt.print("2c fail:")
txt.print_w(wsum)
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txt.nl()
}
uwsum = 50000
uwsum -= 50
uwsum -= 250
if uwsum==49700
txt.print("3c ok\n")
else {
txt.print("3c fail:")
txt.print_uw(uwsum)
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txt.nl()
}
wsum = -30000
wsum -= 100
wsum -= -50
if wsum==-30050
txt.print("4c ok\n")
else
txt.print("4c fail\n")
uwsum = 50000
uwsum += 50 as uword
uwsum += -100 as uword
if uwsum==49950
txt.print("5c ok\n")
else
txt.print("5c fail\n")
uwsum = 50000
uwsum -= 50 as uword
uwsum -= 100 as uword
if uwsum==49850
txt.print("6c ok\n")
else {
txt.print("6c fail:")
txt.print_uw(uwsum)
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txt.nl()
}
wsum = -30000
wsum += 50
wsum += 250
if wsum==-29700
txt.print("7c ok\n")
else {
txt.print("7c fail:")
txt.print_w(wsum)
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txt.nl()
}
wsum = -30000
wsum -= 50
wsum -= 250
if wsum==-30300
txt.print("8c ok\n")
else {
txt.print("8c fail:")
txt.print_w(wsum)
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txt.nl()
}
}
}