2022-04-23 00:15:51 +00:00
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; Prog8 definitions for floating point handling on the VirtualMachine
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;
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; Written by Irmen de Jong (irmen@razorvine.net) - license: GNU GPL 3.0
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%option enable_floats
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floats {
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const float PI = 3.141592653589793
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const float TWOPI = 6.283185307179586
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sub print_f(float value) {
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; ---- prints the floating point value (without a newline).
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2022-04-29 22:10:07 +00:00
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%asm {{
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loadm.f fr0,{floats.print_f.value}
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syscall 35
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return
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}}
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2022-04-23 00:15:51 +00:00
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}
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sub pow(float value, float power) -> float {
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2022-04-30 22:09:03 +00:00
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; TODO fpow.f instruction
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%asm {{
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loadm.f fr0,{floats.pow.value}
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loadm.f fr1,{floats.pow.power}
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fpow.f fr0,fr0
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return
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}}
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2022-04-23 00:15:51 +00:00
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}
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sub fabs(float value) -> float {
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2022-04-30 22:09:03 +00:00
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; TODO fabs.f instruction
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%asm {{
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loadm.f fr0,{floats.fabs.value}
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fabs.f fr0,fr0
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return
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}}
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2022-04-23 00:15:51 +00:00
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}
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sub sin(float angle) -> float {
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2022-04-30 22:09:03 +00:00
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; TODO fsin.f instruction
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2022-04-29 22:10:07 +00:00
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%asm {{
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loadm.f fr0,{floats.sin.angle}
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2022-04-30 22:09:03 +00:00
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fsin.f fr0,fr0
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2022-04-29 22:10:07 +00:00
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return
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}}
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2022-04-23 00:15:51 +00:00
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}
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sub cos(float angle) -> float {
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2022-04-30 22:09:03 +00:00
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; TODO fcos.f instruction
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%asm {{
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loadm.f fr0,{floats.cos.angle}
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fcos.f fr0,fr0
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return
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}}
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2022-04-23 00:15:51 +00:00
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}
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sub tan(float value) -> float {
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2022-04-30 22:09:03 +00:00
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; TODO ftan.f instruction
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%asm {{
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loadm.f fr0,{floats.tan.value}
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ftan.f fr0,fr0
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return
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}}
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2022-04-23 00:15:51 +00:00
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}
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sub atan(float value) -> float {
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2022-04-30 22:09:03 +00:00
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; TODO fatan.f instruction
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%asm {{
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loadm.f fr0,{floats.atan.value}
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fatan.f fr0,fr0
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return
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}}
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2022-04-23 00:15:51 +00:00
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}
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sub ln(float value) -> float {
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2022-04-30 22:09:03 +00:00
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; TODO fln.f instruction
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%asm {{
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loadm.f fr0,{floats.ln.value}
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fln.f fr0,fr0
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return
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}}
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2022-04-23 00:15:51 +00:00
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}
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sub log2(float value) -> float {
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2022-04-30 22:09:03 +00:00
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; TODO flog2.f instruction
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%asm {{
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loadm.f fr0,{floats.log2.value}
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flog2.f fr0,fr0
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return
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}}
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2022-04-23 00:15:51 +00:00
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}
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sub sqrt(float value) -> float {
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2022-04-30 22:09:03 +00:00
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; TODO fsqrt.f instruction
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%asm {{
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loadm.f fr0,{floats.sqrt.value}
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fsqrt.f fr0,fr0
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return
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}}
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2022-04-23 00:15:51 +00:00
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}
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sub rad(float angle) -> float {
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; -- convert degrees to radians (d * pi / 180)
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2022-04-30 22:09:03 +00:00
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return angle * PI / 180.0
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2022-04-23 00:15:51 +00:00
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}
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sub deg(float angle) -> float {
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; -- convert radians to degrees (d * (1/ pi * 180))
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2022-04-30 22:09:03 +00:00
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return angle * 180.0 / PI
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2022-04-23 00:15:51 +00:00
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}
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sub round(float value) -> float {
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2022-04-30 22:09:03 +00:00
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; TODO fround.f instruction
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%asm {{
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loadm.f fr0,{floats.round.value}
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fround.f fr0,fr0
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return
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}}
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2022-04-23 00:15:51 +00:00
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}
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sub floor(float value) -> float {
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2022-04-30 22:09:03 +00:00
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; TODO ffloor.f instruction
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%asm {{
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loadm.f fr0,{floats.floor.value}
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ffloor.f fr0,fr0
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return
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}}
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2022-04-23 00:15:51 +00:00
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}
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sub ceil(float value) -> float {
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; -- ceil: tr = int(f); if tr==f -> return else return tr+1
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2022-04-30 22:09:03 +00:00
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; TODO fceil.f instruction
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%asm {{
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loadm.f fr0,{floats.ceil.value}
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fceil.f fr0,fr0
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return
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}}
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2022-04-23 00:15:51 +00:00
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}
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sub rndf() -> float {
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2022-04-30 22:09:03 +00:00
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; TODO frnd.f instruction
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%asm {{
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frnd.f fr0
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return
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}}
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2022-04-23 00:15:51 +00:00
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}
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}
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