prog8/examples/comparisons_float.p8
2020-03-13 00:50:30 +01:00

121 lines
2.1 KiB
Lua

%import c64utils
%import c64flt
%zeropage basicsafe
main {
sub start() {
float v1
float v2
ubyte cr
c64scr.print("floating point ")
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
; comparisons:
v1=20
v2=666.66
c64scr.print("v1=20, v2=666.66\n")
compare()
v1=-20
v2=666.66
c64scr.print("v1=-20, v2=666.66\n")
compare()
v1=666.66
v2=555.55
c64scr.print("v1=666.66, v2=555.55\n")
compare()
v1=3.1415
v2=-3.1415
c64scr.print("v1 = 3.1415, v2 = -3.1415\n")
compare()
v1=3.1415
v2=3.1415
c64scr.print("v1 = v2 = 3.1415\n")
compare()
v1=0
v2=0
c64scr.print("v1 = v2 = 0\n")
compare()
check_eval_stack()
return
sub compare() {
c64scr.print(" == != < > <= >=\n")
if v1==v2
c64scr.print(" Q ")
else
c64scr.print(" . ")
if v1!=v2
c64scr.print(" Q ")
else
c64scr.print(" . ")
if v1<v2
c64scr.print(" Q ")
else
c64scr.print(" . ")
if v1>v2
c64scr.print(" Q ")
else
c64scr.print(" . ")
if v1<=v2
c64scr.print(" Q ")
else
c64scr.print(" . ")
if v1>=v2
c64scr.print(" Q ")
else
c64scr.print(" . ")
c64.CHROUT('\n')
}
}
sub check_eval_stack() {
c64scr.print("stack x=")
c64scr.print_ub(X)
if X==255
c64scr.print(" ok\n")
else
c64scr.print(" error!\n")
}
}