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Add primes to the examples

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pull/1/head
trivernis 5 years ago
parent 68e6b02c07
commit 310a4f58d7
1 changed files with 95 additions and 0 deletions
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95
examples/primes.sasm
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@ -0,0 +1,95 @@
# memory structure prt_next_val, counter, current_number, numbers...
set 0x03 rgp
write
set 0x02 rgp
set 0x03 rgd
write
set 0x01 rgp
set 0x02 rgd
write
# loop through all numbers until the current one to check by divisibility
label 0x03
set 0x01 rgp
load # load the current counter value
copy rgd rgi
set 0x02 rgp
load # load the current number
mod
copy rgo rgd # copy the modulus result to rgd
clear rgi
set 0x01 rgl
je # check if the result is 0
set 0x01 rgp
load
set 0x01 rgi
add
copy rgo rgd
write # increase the counter by one and write it back
set 0x02 rgp
load # load the current number
set 0x02 rgi
nrt
set 0x01 rgp
load # load the current counter
copy rgd rgi
copy rgo rgd
set 0x04 rgl
je # jump to 0x04 if the counter has reached the square root of the current number
set 0x03 rgl
goto # repeat if the counter is still smaller than the current number
# -- exit jump to avoid undefined behaviour
set 0xFF rgl
goto
# -- write the current number and load the next
label 0x04
set 0x02 rgp
set 0xFF rgi
set 0xFF rgd
mul # calculate 0xFF * 0xFF
copy rgo rgi
load
set 0xFF rgl
jg # jump to the end if the current number is larger than 0xFF * 0xFF
set 0x00 rgp
load # load the current pointer value
set 0x01 rgi
add # increase the value by 1
copy rgo rgd
write # write back the increased value
set 0x02 rgp
load # load the current number
print rgd
copy rgd rgo # temporarily store the number in rgo
set 0x00 rgp
load # load the pointer value
copy rgd rgp
copy rgo rgd # load the current number back into rgd
write # write the current number
set 0x01 rgl
goto # goto the part that increases the current value
# -- exit jump to avoid undefined behaviour
set 0xFF rgl
goto
# -- skips to the next number
label 0x01
set 0x02 rgp
load # load the current number
set 0x02 rgi
add # add 2 to it
copy rgo rgd
write # write it back
set 0x01 rgp
set 0x02 rgd
write # set the counter back to 2
set 0x03 rgl
goto # go back to the beginning
label 0xFF
debug
clear rgd
exit rgd
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