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https://github.com/cc65/cc65.git
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make cbm float library available
This commit is contained in:
mrdudz
parent
331a8c7bc3
commit
78df8e8c3f
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@ -167,7 +167,8 @@ endif
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SRCDIRS = $(SRCDIR)
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ifeq ($(TARGET),$(filter $(TARGET),$(CBMS)))
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SRCDIRS += cbm
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SRCDIRS += cbm \
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float/cbmkernal
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endif
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ifeq ($(TARGET),$(filter $(TARGET),$(GEOS)))
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42
libsrc/c64/extra/fp488kernal.s
Normal file
42
libsrc/c64/extra/fp488kernal.s
Normal file
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@ -0,0 +1,42 @@
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; import/overload stubs for the C64 kernal floating point implementation
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.import ___cbmkernal_afloat
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.import ___cbmkernal_aufloat
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.import ___cbmkernal_axfloat
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.import ___cbmkernal_axufloat
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.import ___cbmkernal_eaxfloat
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.import ___cbmkernal_eaxufloat
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.import ___cbmkernal_feaxint
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.import ___cbmkernal_feaxlong
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.import ___cbmkernal_fbnegeax
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.import ___cbmkernal_ftosaddeax
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.import ___cbmkernal_ftossubeax
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.import ___cbmkernal_ftosdiveax
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.import ___cbmkernal_ftosmuleax
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.import ___cbmkernal_ftoseqeax
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.import ___cbmkernal_ftosneeax
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.import ___cbmkernal_ftosgteax
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.import ___cbmkernal_ftoslteax
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.import ___cbmkernal_ftosgeeax
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.import ___cbmkernal_ftosleeax
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.export afloat := ___cbmkernal_afloat
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.export aufloat := ___cbmkernal_aufloat
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.export axfloat := ___cbmkernal_axfloat
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.export axufloat := ___cbmkernal_axufloat
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.export eaxfloat := ___cbmkernal_eaxfloat
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.export eaxufloat := ___cbmkernal_eaxufloat
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.export feaxint := ___cbmkernal_feaxint
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.export feaxlong := ___cbmkernal_feaxlong
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.export fbnegeax := ___cbmkernal_fbnegeax
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.export ftosaddeax := ___cbmkernal_ftosaddeax
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.export ftossubeax := ___cbmkernal_ftossubeax
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.export ftosdiveax := ___cbmkernal_ftosdiveax
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.export ftosmuleax := ___cbmkernal_ftosmuleax
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.export ftoseqeax := ___cbmkernal_ftoseqeax
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.export ftosneeax := ___cbmkernal_ftosneeax
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.export ftosgteax := ___cbmkernal_ftosgteax
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.export ftoslteax := ___cbmkernal_ftoslteax
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.export ftosgeeax := ___cbmkernal_ftosgeeax
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.export ftosleeax := ___cbmkernal_ftosleeax
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@ -5,23 +5,23 @@
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.import __stof
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; 8bit signed -> float
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.export afloat
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afloat:
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.export ___cbmkernal_afloat
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___cbmkernal_afloat:
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jmp __ctof
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; 8bit unsigned -> float
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.export aufloat
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aufloat:
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.export ___cbmkernal_aufloat
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___cbmkernal_aufloat:
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jmp __utof
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; 16bit signed -> float
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.export axfloat
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axfloat:
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.export ___cbmkernal_axfloat
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___cbmkernal_axfloat:
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jmp __itof
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; 16bit unsigned -> float
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.export axufloat
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axufloat:
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.export ___cbmkernal_axufloat
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___cbmkernal_axufloat:
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jmp __stof
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; FIXME: this might be more accurate when done directly in one step (but the
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@ -30,8 +30,8 @@ axufloat:
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.importzp sreg, tmp1
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.import pusheax
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.export eaxfloat
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eaxfloat:
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.export ___cbmkernal_eaxfloat
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___cbmkernal_eaxfloat:
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sta tmp1
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@ -83,8 +83,8 @@ eaxfloat:
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.importzp sreg, tmp1
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.import pusheax
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.export eaxufloat
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eaxufloat:
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.export ___cbmkernal_eaxufloat
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___cbmkernal_eaxufloat:
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sta tmp1
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@ -135,16 +135,16 @@ eaxufloat:
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.import __ftoi
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; float -> 16bit int
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.export feaxint
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feaxint:
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.export ___cbmkernal_feaxint
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___cbmkernal_feaxint:
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jmp __ftoi
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; FIXME: this might be more accurate when done directly in one step (but the
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; kernal can not do this for 32bit)
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; float -> 32bit int
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.importzp tmp1, tmp2
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.export feaxlong
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feaxlong:
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.export ___cbmkernal_feaxlong
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___cbmkernal_feaxlong:
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jsr pusheax
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@ -186,16 +186,16 @@ feaxlong:
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.import __fneg
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; binary negate (not) for the ! operator. returns a bool!
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.export fbnegeax
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.export ___cbmkernal_fbnegeax
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.import bnegax
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fbnegeax:
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___cbmkernal_fbnegeax:
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; FIXME: why does this not work with __fnot?
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jsr __ftoi
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jmp bnegax
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.if 0 = 1
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.export fnegeax
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fnegeax:
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.export ___cbmkernal_fnegeax
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___cbmkernal_fnegeax:
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jmp __fneg
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.endif
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@ -208,22 +208,22 @@ fbnegeax:
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.import __fmul
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; Primary = TOS + Primary (like tosaddeax)
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.export ftosaddeax
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ftosaddeax:
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.export ___cbmkernal_ftosaddeax
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___cbmkernal_ftosaddeax:
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; arg0: a/x/sreg/sreg+1
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; arg1: (sp),y (y=0..3)
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; FAC: ieee float is in A/X/sreg/sreg+1
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jmp __fadd
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.export ftossubeax
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ftossubeax:
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.export ___cbmkernal_ftossubeax
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___cbmkernal_ftossubeax:
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jmp __fsub
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.export ftosdiveax
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ftosdiveax:
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.export ___cbmkernal_ftosdiveax
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___cbmkernal_ftosdiveax:
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jmp __fdiv
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.export ftosmuleax
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ftosmuleax:
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.export ___cbmkernal_ftosmuleax
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___cbmkernal_ftosmuleax:
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jmp __fmul
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;--------------------------------------------------------------
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@ -231,8 +231,8 @@ ftosmuleax:
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.import __fcmp
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; test for equal
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.export ftoseqeax
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ftoseqeax:
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.export ___cbmkernal_ftoseqeax
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___cbmkernal_ftoseqeax:
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; arg0: a/x/sreg/sreg+1
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; arg1: (sp),y (y=0..3)
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jsr __fcmp
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@ -248,8 +248,8 @@ ftoseqeax:
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rts
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; test for not equal
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.export ftosneeax
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ftosneeax:
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.export ___cbmkernal_ftosneeax
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___cbmkernal_ftosneeax:
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; arg0: a/x/sreg/sreg+1
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; arg1: (sp),y (y=0..3)
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jsr __fcmp
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@ -265,8 +265,8 @@ ftosneeax:
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rts
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; Test for greater than
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.export ftosgteax
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ftosgteax:
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.export ___cbmkernal_ftosgteax
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___cbmkernal_ftosgteax:
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; arg0: a/x/sreg/sreg+1
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; arg1: (sp),y (y=0..3)
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jsr __fcmp
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@ -283,8 +283,8 @@ ftosgteax:
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rts
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; Test for less than
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.export ftoslteax
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ftoslteax:
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.export ___cbmkernal_ftoslteax
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___cbmkernal_ftoslteax:
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; arg0: a/x/sreg/sreg+1
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; arg1: (sp),y (y=0..3)
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jsr __fcmp
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@ -300,8 +300,8 @@ ftoslteax:
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rts
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; Test for greater than or equal to
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.export ftosgeeax
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ftosgeeax:
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.export ___cbmkernal_ftosgeeax
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___cbmkernal_ftosgeeax:
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; arg0: a/x/sreg/sreg+1
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; arg1: (sp),y (y=0..3)
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jsr __fcmp
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@ -318,8 +318,8 @@ ftosgeeax:
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rts
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; Test for less than or equal to
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.export ftosleeax
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ftosleeax:
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.export ___cbmkernal_ftosleeax
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___cbmkernal_ftosleeax:
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; arg0: a/x/sreg/sreg+1
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; arg1: (sp),y (y=0..3)
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jsr __fcmp
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@ -2,8 +2,9 @@
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#include <_float.h>
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#include <math.h>
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#include <cbmfp.h>
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#include "cbmfp.h"
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#if 0
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#define _fcmplt(_d, _s) (_fcmp((_d), (_s)) == 1)
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#define _fcmpgt(_d, _s) (_fcmp((_d), (_s)) == 255)
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#define _fcmpeq(_d, _s) (_fcmp((_d), (_s)) == 0)
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@ -22,3 +23,4 @@ float ffloor(float x)
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}
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return _fsub(d, 1);
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}
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#endif
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@ -2,7 +2,7 @@
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#include <_float.h>
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#include <math.h>
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#include <cbmfp.h>
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#include "cbmfp.h"
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// convert float into a string. this is surprisingly complex, so we just use
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// the kernal function, and then fix up the result
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42
libsrc/vic20/extra/fp488kernal.s
Normal file
42
libsrc/vic20/extra/fp488kernal.s
Normal file
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@ -0,0 +1,42 @@
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; import/overload stubs for the VIC20 kernal floating point implementation
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.import ___cbmkernal_afloat
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.import ___cbmkernal_aufloat
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.import ___cbmkernal_axfloat
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.import ___cbmkernal_axufloat
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.import ___cbmkernal_eaxfloat
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.import ___cbmkernal_eaxufloat
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.import ___cbmkernal_feaxint
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.import ___cbmkernal_feaxlong
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.import ___cbmkernal_fbnegeax
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.import ___cbmkernal_ftosaddeax
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.import ___cbmkernal_ftossubeax
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.import ___cbmkernal_ftosdiveax
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.import ___cbmkernal_ftosmuleax
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.import ___cbmkernal_ftoseqeax
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.import ___cbmkernal_ftosneeax
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.import ___cbmkernal_ftosgteax
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.import ___cbmkernal_ftoslteax
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.import ___cbmkernal_ftosgeeax
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.import ___cbmkernal_ftosleeax
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.export afloat := ___cbmkernal_afloat
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.export aufloat := ___cbmkernal_aufloat
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.export axfloat := ___cbmkernal_axfloat
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.export axufloat := ___cbmkernal_axufloat
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.export eaxfloat := ___cbmkernal_eaxfloat
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.export eaxufloat := ___cbmkernal_eaxufloat
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.export feaxint := ___cbmkernal_feaxint
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.export feaxlong := ___cbmkernal_feaxlong
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.export fbnegeax := ___cbmkernal_fbnegeax
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.export ftosaddeax := ___cbmkernal_ftosaddeax
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.export ftossubeax := ___cbmkernal_ftossubeax
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.export ftosdiveax := ___cbmkernal_ftosdiveax
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.export ftosmuleax := ___cbmkernal_ftosmuleax
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.export ftoseqeax := ___cbmkernal_ftoseqeax
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.export ftosneeax := ___cbmkernal_ftosneeax
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.export ftosgteax := ___cbmkernal_ftosgteax
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.export ftoslteax := ___cbmkernal_ftoslteax
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.export ftosgeeax := ___cbmkernal_ftosgeeax
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.export ftosleeax := ___cbmkernal_ftosleeax
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