prog8/python-prototype/testsource/floats.ill

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; floating point tests
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%output basic
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%import c64lib
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~ main_testing {
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start:
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var float myfloat1 = 1234.56789
var float myfloat2 = 9876.54321
var float myfloatneg1 = -555.666
var float myfloat_large1 = 987654.1111
var float myfloat_large2 = -123456.2222
var str myfloatstr = "1234.998877"
var float myfloatzero = 0
var float myfloatsmall1 = 1.234
var float myfloatsmall2 = 2.6677
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return
}
~ main {
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byte bbvar
float@
var float flt_pi = 3.141592653589793
var float flt_minus32768 = -32768
var float flt_1 = 1
var float flt_half_sqr2 = 0.7071067811865476
var float flt_sqr2 = 1.4142135623730951
var float flt_minus_half = -.5
var float flt_log_2 = 0.6931471805599453
var float flt_10 = 10
var float flt_1e9 = 1000000000
var float flt_half = .5
var float flt_one_over_log_2 = 1.4426950408889634
var float flt_half_pi = 1.5707963267948966
var float flt_double_pi = 6.283185307179586
var float flt_point25 = .25
var float my_float
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memory .word some_address = $ccdd
memory .byte some_addressb = $ccee
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var .byte bytevar = $cc
var .word wordvar = $cdef
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sub printflt (float: AY) -> (?) {
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c64.MOVFM!(AY)
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goto c64.FPRINTLN
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; c64.FOUT!()
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; c64scr.print_string!(AY)
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;goto c64.CHROUT('\n')
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}
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start:
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; assign some float values to the memory
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AY = &flt_pi
some_address = & flt_pi
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some_address = 4123.2342342222
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[$c000.word] = & flt_pi
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my_float ++
my_float += 1
my_float += 0.5
my_float += 999.222
my_float --
my_float -= 1
my_float -= 0.5
my_float -= 999.222
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; print some floating points from source and compare them with ROM
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printflt(&flt_pi)
printflt(&c64.FL_PIVAL)
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printflt(&flt_minus32768)
printflt(&c64.FL_N32768)
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printflt(&flt_1)
printflt(&c64.FL_FONE)
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printflt(&flt_half_sqr2)
printflt( & c64.FL_SQRHLF)
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printflt(&flt_sqr2)
printflt(&c64.FL_SQRTWO)
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printflt(&flt_minus_half)
printflt(&c64.FL_NEGHLF)
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printflt(&flt_log_2)
printflt(&c64.FL_LOG2)
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printflt(&flt_10)
printflt(&c64.FL_TENC)
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printflt(&flt_1e9)
printflt(&c64.FL_NZMIL)
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printflt(&flt_half)
printflt(&c64.FL_FHALF)
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printflt(&flt_one_over_log_2)
printflt(&c64.FL_LOGEB2)
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printflt(&flt_half_pi)
printflt(&c64.FL_PIHALF)
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printflt(&flt_double_pi)
printflt(&c64.FL_TWOPI)
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printflt(& flt_point25)
printflt(&c64.FL_FR4)
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reg_to_float:
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c64.CHROUT!('\n')
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A=33
X=44
Y=55
my_float = A
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printflt(&my_float)
my_float = X
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printflt(&my_float)
my_float = Y
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printflt(&my_float)
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XY = 11122
my_float = XY
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printflt(&my_float)
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AX = 33344
my_float = AX
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printflt(&my_float)
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AY = 55566
my_float = AY
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printflt(&my_float)
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return
}