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removed 16 bits sin/cos routines from math library (sin16, sin16r etc)
This commit is contained in:
Irmen de Jong
parent
4f8fb32136
commit
97aa91c75e
@ -974,6 +974,9 @@ internal class AssignmentAsmGen(private val program: Program,
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} else if(valueDt in ByteDatatypes && targetDt in ByteDatatypes) {
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// byte to byte, just assign
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assignExpressionToRegister(value, target.register!!, targetDt==DataType.BYTE || targetDt==DataType.WORD)
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} else if(valueDt in ByteDatatypes && targetDt in WordDatatypes) {
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// byte to word, assign and zero the msb
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TODO("cast byte to word: $value")
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}
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else
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throw AssemblyError("can't cast $valueDt to $targetDt, this should have been checked in the astchecker")
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@ -37,60 +37,6 @@ _sinecos8 .char trunc(127.0 * sin(range(256+64) * rad(360.0/256.0)))
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}}
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}
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asmsub sin16(ubyte angle @A) -> word @AY {
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%asm {{
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tay
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lda _sinecos8lo,y
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pha
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lda _sinecos8hi,y
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tay
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pla
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rts
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_ := trunc(32767.0 * sin(range(256+64) * rad(360.0/256.0)))
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_sinecos8lo .byte <_
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_sinecos8hi .byte >_
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}}
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}
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asmsub cos16(ubyte angle @A) -> word @AY {
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%asm {{
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tay
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lda sin16._sinecos8lo+64,y
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pha
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lda sin16._sinecos8hi+64,y
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tay
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pla
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rts
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}}
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}
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asmsub sin16u(ubyte angle @A) -> uword @AY {
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%asm {{
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tay
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lda _sinecos8ulo,y
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pha
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lda _sinecos8uhi,y
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tay
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pla
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rts
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_ := trunc(32768.0 + 32767.5 * sin(range(256+64) * rad(360.0/256.0)))
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_sinecos8ulo .byte <_
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_sinecos8uhi .byte >_
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}}
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}
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asmsub cos16u(ubyte angle @A) -> uword @AY {
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%asm {{
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tay
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lda sin16u._sinecos8ulo+64,y
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pha
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lda sin16u._sinecos8uhi+64,y
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tay
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pla
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rts
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}}
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}
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asmsub sinr8u(ubyte radians @A) clobbers(Y) -> ubyte @A {
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%asm {{
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tay
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@ -125,57 +71,4 @@ _sinecosR8 .char trunc(127.0 * sin(range(180+45) * rad(360.0/180.0)))
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}}
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}
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asmsub sinr16(ubyte radians @A) -> word @AY {
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%asm {{
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tay
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lda _sinecosR8lo,y
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pha
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lda _sinecosR8hi,y
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tay
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pla
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rts
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_ := trunc(32767.0 * sin(range(180+45) * rad(360.0/180.0)))
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_sinecosR8lo .byte <_
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_sinecosR8hi .byte >_
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}}
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}
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asmsub cosr16(ubyte radians @A) -> word @AY {
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%asm {{
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tay
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lda sinr16._sinecosR8lo+45,y
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pha
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lda sinr16._sinecosR8hi+45,y
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tay
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pla
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rts
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}}
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}
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asmsub sinr16u(ubyte radians @A) -> uword @AY {
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%asm {{
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tay
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lda _sinecosR8ulo,y
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pha
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lda _sinecosR8uhi,y
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tay
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pla
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rts
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_ := trunc(32768.0 + 32767.5 * sin(range(180+45) * rad(360.0/180.0)))
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_sinecosR8ulo .byte <_
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_sinecosR8uhi .byte >_
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}}
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}
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asmsub cosr16u(ubyte radians @A) -> uword @AY {
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%asm {{
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tay
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lda sinr16u._sinecosR8ulo+45,y
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pha
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lda sinr16u._sinecosR8uhi+45,y
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tay
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pla
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rts
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}}
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}
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}
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@ -19,7 +19,7 @@ math {
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$0f, $11, $12, $14, $15, $17, $19, $1b, $1d, $1f, $21, $23, $25, $28, $2a, $2c,
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$2f, $31, $34, $36, $39, $3b, $3e, $41, $43, $46, $49, $4c, $4f, $52, $55, $58,
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$5a, $5d, $61, $64, $67, $6a, $6d, $70, $73, $76, $79, $7c]
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return sintab[angle]
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return sintab[angle]
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}
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sub cos8u(ubyte angle) -> ubyte {
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@ -40,7 +40,7 @@ math {
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$bc, $be, $c1, $c4, $c6, $c9, $cb, $ce, $d0, $d3, $d5, $d7, $da, $dc, $de, $e0,
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$e2, $e4, $e6, $e8, $ea, $eb, $ed, $ee, $f0, $f1, $f3, $f4, $f5, $f6, $f8, $f9,
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$fa, $fa, $fb, $fc, $fd, $fd, $fe, $fe, $fe, $ff, $ff, $ff ]
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return costab[angle]
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return costab[angle]
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}
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sub sin8(ubyte angle) -> byte {
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@ -51,22 +51,6 @@ math {
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return 42 ; TODO
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}
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sub sin16(ubyte angle) -> word {
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return 4242 ; TODO
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}
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sub cos16(ubyte angle) -> word {
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return 4242 ; TODO
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}
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sub sin16u(ubyte angle) -> uword {
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return 4242 ; TODO
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}
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sub cos16u(ubyte angle) -> uword {
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return 4242 ; TODO
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}
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sub sinr8u(ubyte radians) -> ubyte {
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ubyte[180] sintab = [
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$80, $84, $88, $8d,
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@ -109,19 +93,4 @@ math {
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return 42 ; TODO
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}
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sub sinr16(ubyte radians) -> word {
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return 4242 ; TODO
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}
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sub cosr16(ubyte radians) -> word {
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return 4242 ; TODO
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}
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sub sinr16u(ubyte radians) -> uword {
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return 4242 ; TODO
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}
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sub cosr16u(ubyte radians) -> uword {
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return 4242 ; TODO
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}
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}
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@ -273,7 +273,7 @@ math
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Low level math routines. You should not normally have to bother with this directly.
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The compiler needs it to implement most of the math operations in your programs.
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However there's a bunch of integer trig functions in here too that use lookup tables
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However there's a bunch of 8-bit integer trig functions in here too that use lookup tables
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to quickly calculate sine and cosines. Usually a custom lookup table is the way to go if your
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application needs this, but perhaps the provided ones can be of service too:
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@ -283,12 +283,6 @@ sin8u(x)
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sin8(x)
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Fast 8-bit byte sine of angle 0..255, result is in range -127..127
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sin16u(x)
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Fast 16-bit uword sine of angle 0..255, result is in range 0..65535
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sin16(x)
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Fast 16-bit word sine of angle 0..255, result is in range -32767..32767
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sinr8u(x)
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Fast 8-bit ubyte sine of angle 0..179 (each is a 2 degree step), result is in range 0..255
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Angles 180..255 will yield a garbage result!
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@ -297,27 +291,12 @@ sinr8(x)
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Fast 8-bit byte sine of angle 0..179 (each is a 2 degree step), result is in range -127..127
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Angles 180..255 will yield a garbage result!
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sinr16u(x)
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Fast 16-bit uword sine of angle 0..179 (each is a 2 degree step), result is in range 0..65535
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Angles 180..255 will yield a garbage result!
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sinr16(x)
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Fast 16-bit word sine of angle 0..179 (each is a 2 degree step), result is in range -32767..32767
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Angles 180..255 will yield a garbage result!
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cos8u(x)
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Fast 8-bit ubyte cosine of angle 0..255, result is in range 0..255
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cos8(x)
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Fast 8-bit byte cosine of angle 0..255, result is in range -127..127
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cos16u(x)
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Fast 16-bit uword cosine of angle 0..255, result is in range 0..65535
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cos16(x)
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Fast 16-bit word cosine of angle 0..255, result is in range -32767..32767
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cosr8u(x)
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Fast 8-bit ubyte cosine of angle 0..179 (each is a 2 degree step), result is in range 0..255
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Angles 180..255 will yield a garbage result!
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@ -326,14 +305,6 @@ cosr8(x)
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Fast 8-bit byte cosine of angle 0..179 (each is a 2 degree step), result is in range -127..127
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Angles 180..255 will yield a garbage result!
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cosr16u(x)
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Fast 16-bit uword cosine of angle 0..179 (each is a 2 degree step), result is in range 0..65535
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Angles 180..255 will yield a garbage result!
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cosr16(x)
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Fast 16-bit word cosine of angle 0..179 (each is a 2 degree step), result is in range -32767..32767
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Angles 180..255 will yield a garbage result!
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cx16logo
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--------
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@ -4,6 +4,7 @@ TODO
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For next release
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^^^^^^^^^^^^^^^^
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- vm: implement remaining sin/cos functions in virtual/math.p8 and merge tables
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- fix "can't cast BYTE to UWORD this should have been checked in the astchecker" crash
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...
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@ -35,21 +35,21 @@ main {
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graphics.line(256,0,256,height-1)
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ubyte pixelyb
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uword pixelyw
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ubyte pixelxb
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byte pixelys
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for pixelxb in 0 to 255 {
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pixelyb = math.cos8u(pixelxb) / 2
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graphics.plot(pixelxb, pixelyb)
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graphics.plot(pixelxb, pixelyb+20)
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pixelyb = math.sin8u(pixelxb) / 2
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graphics.plot(pixelxb, pixelyb)
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graphics.plot(pixelxb, pixelyb+20)
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}
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for pixelxb in 0 to 255 {
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pixelyw = math.cos16u(pixelxb) / 1024 + 120
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graphics.plot(pixelxb, pixelyw)
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pixelyw = math.sin16u(pixelxb) / 1024 + 120
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graphics.plot(pixelxb, pixelyw)
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pixelys = math.cos8(pixelxb) / 2
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graphics.plot(pixelxb, pixelys+90 as ubyte as uword) ; TODO fix weird cast error
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pixelys = math.sin8(pixelxb) / 2
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graphics.plot(pixelxb, pixelys+90 as ubyte as uword) ; TODO fix weird cast error
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}
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}
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@ -57,21 +57,21 @@ main {
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graphics.line(180,0,180,height-1)
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ubyte pixelyb
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uword pixelyw
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ubyte pixelxb
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byte pixelys
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for pixelxb in 0 to 179 {
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pixelyb = math.cosr8u(pixelxb) / 2
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graphics.plot(pixelxb, pixelyb)
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graphics.plot(pixelxb, pixelyb+20)
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pixelyb = math.sinr8u(pixelxb) / 2
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graphics.plot(pixelxb, pixelyb)
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graphics.plot(pixelxb, pixelyb+20)
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}
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for pixelxb in 0 to 179 {
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pixelyw = math.cosr16u(pixelxb) / 1024 + 120
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graphics.plot(pixelxb, pixelyw)
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pixelyw = math.sinr16u(pixelxb) / 1024 + 120
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graphics.plot(pixelxb, pixelyw)
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pixelys = math.cosr8(pixelxb) / 2
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graphics.plot(pixelxb, pixelys+90 as ubyte as uword) ; TODO fix weird cast error
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pixelys = math.sinr8(pixelxb) / 2
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graphics.plot(pixelxb, pixelys+90 as ubyte as uword) ; TODO fix weird cast error
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}
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}
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@ -80,7 +80,7 @@ main {
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uword pixelxw
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ubyte r
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; circles with "degrees" from 0 to 255
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; circle with "degrees" from 0 to 255
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for r in 0 to 255 {
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pixelxw = ((math.sin8(r)/2 as word) + 80) as uword
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pixelyb = (math.cos8(r)/2 + height/2) as ubyte
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@ -88,12 +88,12 @@ main {
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}
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for r in 0 to 255 {
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pixelxw = (math.sin16(r)/1024 + 80) as uword
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pixelyb = (math.cos16(r)/1024 + height/2) as ubyte
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graphics.plot(pixelxw, pixelyb)
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pixelxw = math.sin8u(r)/2
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pixelyb = math.cos8u(r)/2
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graphics.plot(pixelxw + 16, pixelyb+50)
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}
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; circles with half-degrees from 0 to 179 (=full degrees 0..358 with steps of 2 degrees)
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; circle with half-degrees from 0 to 179 (=full degrees 0..358 with steps of 2 degrees)
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for r in 0 to 179 {
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pixelxw = (math.sinr8(r) as word /2 + 220) as uword
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pixelyb = (math.cosr8(r)/2 + height/2) as ubyte
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@ -101,10 +101,9 @@ main {
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}
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for r in 0 to 179 {
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pixelxw = (math.sinr16(r) as word /1024 + 220) as uword
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pixelyb = (math.cosr16(r)/1024 + height/2) as ubyte
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graphics.plot(pixelxw, pixelyb)
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pixelxw = math.sinr8u(r)/2
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pixelyb = math.cosr8u(r)/2
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graphics.plot(pixelxw + 156, pixelyb+50)
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}
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}
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}
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