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https://github.com/irmen/prog8.git
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120 lines
2.1 KiB
Lua
120 lines
2.1 KiB
Lua
%import c64utils
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%import c64flt
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%zeropage basicsafe
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main {
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sub start() {
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float v1
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float v2
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ubyte cr
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c64scr.print("floating point ")
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cr=v1==v2
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cr=v1==v2
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cr=v1==v2
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cr=v1!=v2
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cr=v1!=v2
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cr=v1!=v2
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cr=v1<v2
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cr=v1<v2
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cr=v1<v2
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cr=v1<v2
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cr=v1>v2
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cr=v1>v2
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cr=v1>v2
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cr=v1>v2
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cr=v1>v2
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cr=v1<=v2
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cr=v1<=v2
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cr=v1<=v2
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cr=v1<=v2
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cr=v1>=v2
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cr=v1>=v2
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cr=v1>=v2
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cr=v1>=v2
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cr=v1>=v2
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; comparisons:
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v1=20
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v2=666.66
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c64scr.print("v1=20, v2=666.66\n")
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compare()
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v1=-20
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v2=666.66
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c64scr.print("v1=-20, v2=666.66\n")
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compare()
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v1=666.66
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v2=555.55
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c64scr.print("v1=666.66, v2=555.55\n")
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compare()
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v1=3.1415
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v2=-3.1415
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c64scr.print("v1 = 3.1415, v2 = -3.1415\n")
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compare()
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v1=3.1415
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v2=3.1415
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c64scr.print("v1 = v2 = 3.1415\n")
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compare()
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v1=0
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v2=0
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c64scr.print("v1 = v2 = 0\n")
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compare()
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check_eval_stack()
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return
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sub compare() {
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c64scr.print(" == != < > <= >=\n")
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if v1==v2
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c64scr.print(" Q ")
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else
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c64scr.print(" . ")
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if v1!=v2
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c64scr.print(" Q ")
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else
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c64scr.print(" . ")
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if v1<v2
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c64scr.print(" Q ")
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else
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c64scr.print(" . ")
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if v1>v2
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c64scr.print(" Q ")
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else
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c64scr.print(" . ")
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if v1<=v2
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c64scr.print(" Q ")
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else
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c64scr.print(" . ")
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if v1>=v2
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c64scr.print(" Q ")
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else
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c64scr.print(" . ")
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c64.CHROUT('\n')
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}
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}
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sub check_eval_stack() {
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c64scr.print("stack x=")
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c64scr.print_ub(X)
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if X==255
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c64scr.print(" ok\n")
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else
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c64scr.print(" error!\n")
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}
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}
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