prog8/compiler/examples/comparisons_byte.p8
Irmen de Jong 4be6a2eeef abs()
2018-12-18 01:43:04 +01:00

104 lines
1.7 KiB
Lua

%import c64utils
%import mathlib
~ main {
sub start() {
byte v1
byte v2
ubyte cr
; check stack usage:
c64.STROUT("signed byte ")
c64scr.print_byte(X)
c64.CHROUT(' ')
cr=v1==v2
cr=v1==v2
cr=v1==v2
cr=v1!=v2
cr=v1!=v2
cr=v1!=v2
cr=v1<v2
cr=v1<v2
cr=v1<v2
cr=v1<v2
cr=v1>v2
cr=v1>v2
cr=v1>v2
cr=v1>v2
cr=v1>v2
cr=v1<=v2
cr=v1<=v2
cr=v1<=v2
cr=v1<=v2
cr=v1>=v2
cr=v1>=v2
cr=v1>=v2
cr=v1>=v2
cr=v1>=v2
c64scr.print_byte(X)
c64.CHROUT('\n')
; comparisons:
v1=-20
v2=125
c64.STROUT("v1=-20, v2=125\n")
compare()
v1=80
v2=80
c64.STROUT("v1 = v2 = 80\n")
compare()
v1=20
v2=-111
c64.STROUT("v1=20, v2=-111\n")
compare()
c64scr.print_byte(X)
c64.CHROUT('\n')
return
sub compare() {
c64.STROUT(" == != < > <= >=\n")
if v1==v2
c64.STROUT(" Q ")
else
c64.STROUT(" . ")
if v1!=v2
c64.STROUT(" Q ")
else
c64.STROUT(" . ")
if v1<v2
c64.STROUT(" Q ")
else
c64.STROUT(" . ")
if v1>v2
c64.STROUT(" Q ")
else
c64.STROUT(" . ")
if v1<=v2
c64.STROUT(" Q ")
else
c64.STROUT(" . ")
if v1>=v2
c64.STROUT(" Q ")
else
c64.STROUT(" . ")
c64.CHROUT('\n')
}
}
}