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remove even more X register save/restore code

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This commit is contained in:
Irmen de Jong 2023-07-15 15:18:26 +02:00
parent e2bb0de24d
commit 41af63b333
23 changed files with 170 additions and 444 deletions
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2
codeGenCpu6502/src/prog8/codegen/cpu6502/assignment/AssignmentAsmGen.kt
View File

@ -1944,11 +1944,9 @@ internal class AssignmentAsmGen(private val program: PtProgram,
when(target.kind) {
TargetStorageKind.VARIABLE -> {
asmgen.out("""
stx P8ZP_SCRATCH_REG
ldx #<${target.asmVarname}
ldy #>${target.asmVarname}
jsr floats.MOVMF
ldx P8ZP_SCRATCH_REG
""")
}
TargetStorageKind.ARRAY -> {

46
compiler/res/prog8lib/atari/textio.p8
View File

@ -153,10 +153,9 @@ asmsub print (str text @ AY) clobbers(A,Y) {
}}
}
asmsub print_ub0 (ubyte value @ A) clobbers(A,Y) {
asmsub print_ub0 (ubyte value @ A) clobbers(A,X,Y) {
; ---- print the ubyte in A in decimal form, with left padding 0s (3 positions total)
%asm {{
stx P8ZP_SCRATCH_REG
jsr conv.ubyte2decimal
pha
tya
@ -164,16 +163,13 @@ asmsub print_ub0 (ubyte value @ A) clobbers(A,Y) {
pla
jsr chrout
txa
jsr chrout
ldx P8ZP_SCRATCH_REG
rts
jmp chrout
}}
}
asmsub print_ub (ubyte value @ A) clobbers(A,Y) {
asmsub print_ub (ubyte value @ A) clobbers(A,X,Y) {
; ---- print the ubyte in A in decimal form, without left padding 0s
%asm {{
stx P8ZP_SCRATCH_REG
jsr conv.ubyte2decimal
_print_byte_digits
pha
@ -189,16 +185,13 @@ _print_byte_digits
beq _ones
jsr chrout
_ones txa
jsr chrout
ldx P8ZP_SCRATCH_REG
rts
jmp chrout
}}
}
asmsub print_b (byte value @ A) clobbers(A,Y) {
asmsub print_b (byte value @ A) clobbers(A,X,Y) {
; ---- print the byte in A in decimal form, without left padding 0s
%asm {{
stx P8ZP_SCRATCH_REG
pha
cmp #0
bpl +
@ -210,10 +203,9 @@ asmsub print_b (byte value @ A) clobbers(A,Y) {
}}
}
asmsub print_ubhex (ubyte value @ A, bool prefix @ Pc) clobbers(A,Y) {
asmsub print_ubhex (ubyte value @ A, bool prefix @ Pc) clobbers(A,X,Y) {
; ---- print the ubyte in A in hex form (if Carry is set, a radix prefix '$' is printed as well)
%asm {{
stx P8ZP_SCRATCH_REG
bcc +
pha
lda #'$'
@ -222,16 +214,13 @@ asmsub print_ubhex (ubyte value @ A, bool prefix @ Pc) clobbers(A,Y) {
+ jsr conv.ubyte2hex
jsr chrout
tya
jsr chrout
ldx P8ZP_SCRATCH_REG
rts
jmp chrout
}}
}
asmsub print_ubbin (ubyte value @ A, bool prefix @ Pc) clobbers(A,Y) {
asmsub print_ubbin (ubyte value @ A, bool prefix @ Pc) clobbers(A,X,Y) {
; ---- print the ubyte in A in binary form (if Carry is set, a radix prefix '%' is printed as well)
%asm {{
stx P8ZP_SCRATCH_REG
sta P8ZP_SCRATCH_B1
bcc +
lda #'%'
@ -244,12 +233,11 @@ asmsub print_ubbin (ubyte value @ A, bool prefix @ Pc) clobbers(A,Y) {
+ jsr chrout
dey
bne -
ldx P8ZP_SCRATCH_REG
rts
}}
}
asmsub print_uwbin (uword value @ AY, bool prefix @ Pc) clobbers(A,Y) {
asmsub print_uwbin (uword value @ AY, bool prefix @ Pc) clobbers(A,X,Y) {
; ---- print the uword in A/Y in binary form (if Carry is set, a radix prefix '%' is printed as well)
%asm {{
pha
@ -261,7 +249,7 @@ asmsub print_uwbin (uword value @ AY, bool prefix @ Pc) clobbers(A,Y) {
}}
}
asmsub print_uwhex (uword value @ AY, bool prefix @ Pc) clobbers(A,Y) {
asmsub print_uwhex (uword value @ AY, bool prefix @ Pc) clobbers(A,X,Y) {
; ---- print the uword in A/Y in hexadecimal form (4 digits)
; (if Carry is set, a radix prefix '$' is printed as well)
%asm {{
@ -274,10 +262,9 @@ asmsub print_uwhex (uword value @ AY, bool prefix @ Pc) clobbers(A,Y) {
}}
}
asmsub print_uw0 (uword value @ AY) clobbers(A,Y) {
asmsub print_uw0 (uword value @ AY) clobbers(A,X,Y) {
; ---- print the uword in A/Y in decimal form, with left padding 0s (5 positions total)
%asm {{
stx P8ZP_SCRATCH_REG
jsr conv.uword2decimal
ldy #0
- lda conv.uword2decimal.decTenThousands,y
@ -285,17 +272,14 @@ asmsub print_uw0 (uword value @ AY) clobbers(A,Y) {
jsr chrout
iny
bne -
+ ldx P8ZP_SCRATCH_REG
rts
+ rts
}}
}
asmsub print_uw (uword value @ AY) clobbers(A,Y) {
asmsub print_uw (uword value @ AY) clobbers(A,X,Y) {
; ---- print the uword in A/Y in decimal form, without left padding 0s
%asm {{
stx P8ZP_SCRATCH_REG
jsr conv.uword2decimal
ldx P8ZP_SCRATCH_REG
ldy #0
- lda conv.uword2decimal.decTenThousands,y
beq _allzero
@ -316,7 +300,7 @@ _allzero
}}
}
asmsub print_w (word value @ AY) clobbers(A,Y) {
asmsub print_w (word value @ AY) clobbers(A,X,Y) {
; ---- print the (signed) word in A/Y in decimal form, without left padding 0's
%asm {{
cpy #0
@ -388,7 +372,7 @@ sub setcc (ubyte column, ubyte row, ubyte char, ubyte charcolor) {
}}
}
asmsub plot (ubyte col @ Y, ubyte row @ A) clobbers(A) {
asmsub plot (ubyte col @ Y, ubyte row @ A) {
; ---- set cursor at specific position
; TODO
%asm {{

14
compiler/res/prog8lib/c128/syslib.p8
View File

@ -104,34 +104,26 @@ romsub $FFF3 = IOBASE() -> uword @ XY ; read base addr
; ---- utilities -----
asmsub STOP2() -> ubyte @A {
asmsub STOP2() clobbers(X) -> ubyte @A {
; -- check if STOP key was pressed, returns true if so. More convenient to use than STOP() because that only sets the carry status flag.
%asm {{
txa
pha
jsr cbm.STOP
beq +
pla
tax
lda #0
rts
+ pla
tax
lda #1
+ lda #1
rts
}}
}
asmsub RDTIM16() -> uword @AY {
asmsub RDTIM16() clobbers(X) -> uword @AY {
; -- like RDTIM() but only returning the lower 16 bits in AY for convenience
%asm {{
stx P8ZP_SCRATCH_REG
jsr cbm.RDTIM
pha
txa
tay
pla
ldx P8ZP_SCRATCH_REG
rts
}}
}

69
compiler/res/prog8lib/c128/textio.p8
View File

@ -97,13 +97,12 @@ sub uppercase() {
c128.VM1 &= ~2
}
asmsub scroll_left (bool alsocolors @ Pc) clobbers(A, Y) {
asmsub scroll_left (bool alsocolors @ Pc) clobbers(A, X, Y) {
; ---- scroll the whole screen 1 character to the left
; contents of the rightmost column are unchanged, you should clear/refill this yourself
; Carry flag determines if screen color data must be scrolled too
%asm {{
stx P8ZP_SCRATCH_REG
bcc _scroll_screen
+ ; scroll the screen and the color memory
@ -133,17 +132,15 @@ _scroll_screen ; scroll only the screen memory
dey
bpl -
ldx P8ZP_SCRATCH_REG
rts
}}
}
asmsub scroll_right (bool alsocolors @ Pc) clobbers(A) {
asmsub scroll_right (bool alsocolors @ Pc) clobbers(A,X) {
; ---- scroll the whole screen 1 character to the right
; contents of the leftmost column are unchanged, you should clear/refill this yourself
; Carry flag determines if screen color data must be scrolled too
%asm {{
stx P8ZP_SCRATCH_REG
bcc _scroll_screen
+ ; scroll the screen and the color memory
@ -169,17 +166,15 @@ _scroll_screen ; scroll only the screen memory
dex
bpl -
ldx P8ZP_SCRATCH_REG
rts
}}
}
asmsub scroll_up (bool alsocolors @ Pc) clobbers(A) {
asmsub scroll_up (bool alsocolors @ Pc) clobbers(A,X) {
; ---- scroll the whole screen 1 character up
; contents of the bottom row are unchanged, you should refill/clear this yourself
; Carry flag determines if screen color data must be scrolled too
%asm {{
stx P8ZP_SCRATCH_REG
bcc _scroll_screen
+ ; scroll the screen and the color memory
@ -205,17 +200,15 @@ _scroll_screen ; scroll only the screen memory
dex
bpl -
ldx P8ZP_SCRATCH_REG
rts
}}
}
asmsub scroll_down (bool alsocolors @ Pc) clobbers(A) {
asmsub scroll_down (bool alsocolors @ Pc) clobbers(A,X) {
; ---- scroll the whole screen 1 character down
; contents of the top row are unchanged, you should refill/clear this yourself
; Carry flag determines if screen color data must be scrolled too
%asm {{
stx P8ZP_SCRATCH_REG
bcc _scroll_screen
+ ; scroll the screen and the color memory
@ -241,7 +234,6 @@ _scroll_screen ; scroll only the screen memory
dex
bpl -
ldx P8ZP_SCRATCH_REG
rts
}}
}
@ -266,10 +258,9 @@ asmsub print (str text @ AY) clobbers(A,Y) {
}}
}
asmsub print_ub0 (ubyte value @ A) clobbers(A,Y) {
asmsub print_ub0 (ubyte value @ A) clobbers(A,X,Y) {
; ---- print the ubyte in A in decimal form, with left padding 0s (3 positions total)
%asm {{
stx P8ZP_SCRATCH_REG
jsr conv.ubyte2decimal
pha
tya
@ -277,16 +268,13 @@ asmsub print_ub0 (ubyte value @ A) clobbers(A,Y) {
pla
jsr cbm.CHROUT
txa
jsr cbm.CHROUT
ldx P8ZP_SCRATCH_REG
rts
jmp cbm.CHROUT
}}
}
asmsub print_ub (ubyte value @ A) clobbers(A,Y) {
asmsub print_ub (ubyte value @ A) clobbers(A,X,Y) {
; ---- print the ubyte in A in decimal form, without left padding 0s
%asm {{
stx P8ZP_SCRATCH_REG
jsr conv.ubyte2decimal
_print_byte_digits
pha
@ -302,16 +290,13 @@ _print_byte_digits
beq _ones
jsr cbm.CHROUT
_ones txa
jsr cbm.CHROUT
ldx P8ZP_SCRATCH_REG
rts
jmp cbm.CHROUT
}}
}
asmsub print_b (byte value @ A) clobbers(A,Y) {
asmsub print_b (byte value @ A) clobbers(A,X,Y) {
; ---- print the byte in A in decimal form, without left padding 0s
%asm {{
stx P8ZP_SCRATCH_REG
pha
cmp #0
bpl +
@ -323,10 +308,9 @@ asmsub print_b (byte value @ A) clobbers(A,Y) {
}}
}
asmsub print_ubhex (ubyte value @ A, bool prefix @ Pc) clobbers(A,Y) {
asmsub print_ubhex (ubyte value @ A, bool prefix @ Pc) clobbers(A,X,Y) {
; ---- print the ubyte in A in hex form (if Carry is set, a radix prefix '$' is printed as well)
%asm {{
stx P8ZP_SCRATCH_REG
bcc +
pha
lda #'$'
@ -335,16 +319,13 @@ asmsub print_ubhex (ubyte value @ A, bool prefix @ Pc) clobbers(A,Y) {
+ jsr conv.ubyte2hex
jsr cbm.CHROUT
tya
jsr cbm.CHROUT
ldx P8ZP_SCRATCH_REG
rts
jmp cbm.CHROUT
}}
}
asmsub print_ubbin (ubyte value @ A, bool prefix @ Pc) clobbers(A,Y) {
asmsub print_ubbin (ubyte value @ A, bool prefix @ Pc) clobbers(A,X,Y) {
; ---- print the ubyte in A in binary form (if Carry is set, a radix prefix '%' is printed as well)
%asm {{
stx P8ZP_SCRATCH_REG
sta P8ZP_SCRATCH_B1
bcc +
lda #'%'
@ -357,12 +338,11 @@ asmsub print_ubbin (ubyte value @ A, bool prefix @ Pc) clobbers(A,Y) {
+ jsr cbm.CHROUT
dey
bne -
ldx P8ZP_SCRATCH_REG
rts
}}
}
asmsub print_uwbin (uword value @ AY, bool prefix @ Pc) clobbers(A,Y) {
asmsub print_uwbin (uword value @ AY, bool prefix @ Pc) clobbers(A,X,Y) {
; ---- print the uword in A/Y in binary form (if Carry is set, a radix prefix '%' is printed as well)
%asm {{
pha
@ -374,7 +354,7 @@ asmsub print_uwbin (uword value @ AY, bool prefix @ Pc) clobbers(A,Y) {
}}
}
asmsub print_uwhex (uword value @ AY, bool prefix @ Pc) clobbers(A,Y) {
asmsub print_uwhex (uword value @ AY, bool prefix @ Pc) clobbers(A,X,Y) {
; ---- print the uword in A/Y in hexadecimal form (4 digits)
; (if Carry is set, a radix prefix '$' is printed as well)
%asm {{
@ -387,10 +367,9 @@ asmsub print_uwhex (uword value @ AY, bool prefix @ Pc) clobbers(A,Y) {
}}
}
asmsub print_uw0 (uword value @ AY) clobbers(A,Y) {
asmsub print_uw0 (uword value @ AY) clobbers(A,X,Y) {
; ---- print the uword in A/Y in decimal form, with left padding 0s (5 positions total)
%asm {{
stx P8ZP_SCRATCH_REG
jsr conv.uword2decimal
ldy #0
- lda conv.uword2decimal.decTenThousands,y
@ -398,17 +377,14 @@ asmsub print_uw0 (uword value @ AY) clobbers(A,Y) {
jsr cbm.CHROUT
iny
bne -
+ ldx P8ZP_SCRATCH_REG
rts
+ rts
}}
}
asmsub print_uw (uword value @ AY) clobbers(A,Y) {
asmsub print_uw (uword value @ AY) clobbers(A,X,Y) {
; ---- print the uword in A/Y in decimal form, without left padding 0s
%asm {{
stx P8ZP_SCRATCH_REG
jsr conv.uword2decimal
ldx P8ZP_SCRATCH_REG
ldy #0
- lda conv.uword2decimal.decTenThousands,y
beq _allzero
@ -429,7 +405,7 @@ _allzero
}}
}
asmsub print_w (word value @ AY) clobbers(A,Y) {
asmsub print_w (word value @ AY) clobbers(A,X,Y) {
; ---- print the (signed) word in A/Y in decimal form, without left padding 0's
%asm {{
cpy #0
@ -583,15 +559,10 @@ _colormod sta $ffff ; modified
}}
}
asmsub plot (ubyte col @ Y, ubyte row @ A) clobbers(A) {
; ---- safe wrapper around PLOT kernal routine, to save the X register.
asmsub plot (ubyte col @ Y, ubyte row @ X) {
%asm {{
stx P8ZP_SCRATCH_REG
tax
clc
jsr cbm.PLOT
ldx P8ZP_SCRATCH_REG
rts
jmp cbm.PLOT
}}
}

93
compiler/res/prog8lib/c64/floats.asm
View File

@ -5,13 +5,11 @@ FL_ZERO_const .byte 0,0,0,0,0 ; 0.0
FL_LOG2_const .byte $80, $31, $72, $17, $f8 ; log(2)
floats_store_reg .byte 0 ; temp storage
floats_temp_var .byte 0,0,0,0,0 ; temporary storage for a float
ub2float .proc
; -- convert ubyte in SCRATCH_ZPB1 to float at address A/Y
; clobbers A, Y
stx P8ZP_SCRATCH_REG
; clobbers A, X, Y
sta P8ZP_SCRATCH_W2
sty P8ZP_SCRATCH_W2+1
ldy P8ZP_SCRATCH_B1
@ -19,15 +17,12 @@ ub2float .proc
jsr GIVAYF
_fac_to_mem ldx P8ZP_SCRATCH_W2
ldy P8ZP_SCRATCH_W2+1
jsr MOVMF
ldx P8ZP_SCRATCH_REG
rts
jmp MOVMF
.pend
b2float .proc
; -- convert byte in SCRATCH_ZPB1 to float at address A/Y
; clobbers A, Y
stx P8ZP_SCRATCH_REG
; clobbers A, X, Y
sta P8ZP_SCRATCH_W2
sty P8ZP_SCRATCH_W2+1
lda P8ZP_SCRATCH_B1
@ -37,7 +32,7 @@ b2float .proc
uw2float .proc
; -- convert uword in SCRATCH_ZPWORD1 to float at address A/Y
stx P8ZP_SCRATCH_REG
; clobbers X
sta P8ZP_SCRATCH_W2
sty P8ZP_SCRATCH_W2+1
lda P8ZP_SCRATCH_W1
@ -48,7 +43,7 @@ uw2float .proc
w2float .proc
; -- convert word in SCRATCH_ZPWORD1 to float at address A/Y
stx P8ZP_SCRATCH_REG
; clobbers X
sta P8ZP_SCRATCH_W2
sty P8ZP_SCRATCH_W2+1
ldy P8ZP_SCRATCH_W1
@ -60,7 +55,7 @@ w2float .proc
cast_from_uw .proc
; -- uword in A/Y into float var at (P8ZP_SCRATCH_W2)
stx P8ZP_SCRATCH_REG
; clobbers X
jsr GIVUAYFAY
jmp ub2float._fac_to_mem
.pend
@ -68,7 +63,7 @@ cast_from_uw .proc
cast_from_w .proc
; -- word in A/Y into float var at (P8ZP_SCRATCH_W2)
stx P8ZP_SCRATCH_REG
; clobbers X
jsr GIVAYFAY
jmp ub2float._fac_to_mem
.pend
@ -76,7 +71,7 @@ cast_from_w .proc
cast_from_ub .proc
; -- ubyte in Y into float var at (P8ZP_SCRATCH_W2)
stx P8ZP_SCRATCH_REG
; clobbers X
jsr FREADUY
jmp ub2float._fac_to_mem
.pend
@ -84,38 +79,37 @@ cast_from_ub .proc
cast_from_b .proc
; -- byte in A into float var at (P8ZP_SCRATCH_W2)
stx P8ZP_SCRATCH_REG
; clobbers X
jsr FREADSA
jmp ub2float._fac_to_mem
.pend
cast_as_uw_into_ya .proc ; also used for float 2 ub
; -- cast float at A/Y to uword into Y/A
; clobbers X
jsr MOVFM
jmp cast_FAC1_as_uw_into_ya
.pend
cast_as_w_into_ay .proc ; also used for float 2 b
; -- cast float at A/Y to word into A/Y
; clobbers X
jsr MOVFM
jmp cast_FAC1_as_w_into_ay
.pend
cast_FAC1_as_uw_into_ya .proc ; also used for float 2 ub
; -- cast fac1 to uword into Y/A
stx P8ZP_SCRATCH_REG
jsr GETADR ; into Y/A
ldx P8ZP_SCRATCH_REG
rts
; clobbers X
jmp GETADR ; into Y/A
.pend
cast_FAC1_as_w_into_ay .proc ; also used for float 2 b
; -- cast fac1 to word into A/Y
stx P8ZP_SCRATCH_REG
; clobbers X
jsr AYINT
ldy floats.AYINT_facmo
lda floats.AYINT_facmo+1
ldx P8ZP_SCRATCH_REG
rts
.pend
@ -145,25 +139,23 @@ copy_float .proc
inc_var_f .proc
; -- add 1 to float pointed to by A/Y
; clobbers X
sta P8ZP_SCRATCH_W1
sty P8ZP_SCRATCH_W1+1
stx P8ZP_SCRATCH_REG
jsr MOVFM
lda #<FL_ONE_const
ldy #>FL_ONE_const
jsr FADD
ldx P8ZP_SCRATCH_W1
ldy P8ZP_SCRATCH_W1+1
jsr MOVMF
ldx P8ZP_SCRATCH_REG
rts
jmp MOVMF
.pend
dec_var_f .proc
; -- subtract 1 from float pointed to by A/Y
; clobbers X
sta P8ZP_SCRATCH_W1
sty P8ZP_SCRATCH_W1+1
stx P8ZP_SCRATCH_REG
lda #<FL_ONE_const
ldy #>FL_ONE_const
jsr MOVFM
@ -172,9 +164,7 @@ dec_var_f .proc
jsr FSUB
ldx P8ZP_SCRATCH_W1
ldy P8ZP_SCRATCH_W1+1
jsr MOVMF
ldx P8ZP_SCRATCH_REG
rts
jmp MOVMF
.pend
@ -183,10 +173,8 @@ fmath_float2 .byte 0,0,0,0,0 ; storage for a mflpt5 value
var_fac1_less_f .proc
; -- is the float in FAC1 < the variable AY?
stx P8ZP_SCRATCH_REG
; -- is the float in FAC1 < the variable AY? Result in A. Clobbers X.
jsr FCOMP
ldx P8ZP_SCRATCH_REG
cmp #255
beq +
lda #0
@ -196,10 +184,8 @@ var_fac1_less_f .proc
.pend
var_fac1_lesseq_f .proc
; -- is the float in FAC1 <= the variable AY?
stx P8ZP_SCRATCH_REG
; -- is the float in FAC1 <= the variable AY? Result in A. Clobbers X.
jsr FCOMP
ldx P8ZP_SCRATCH_REG
cmp #0
beq +
cmp #255
@ -211,10 +197,8 @@ var_fac1_lesseq_f .proc
.pend
var_fac1_greater_f .proc
; -- is the float in FAC1 > the variable AY?
stx P8ZP_SCRATCH_REG
; -- is the float in FAC1 > the variable AY? Result in A. Clobbers X.
jsr FCOMP
ldx P8ZP_SCRATCH_REG
cmp #1
beq +
lda #0
@ -224,10 +208,9 @@ var_fac1_greater_f .proc
.pend
var_fac1_greatereq_f .proc
; -- is the float in FAC1 >= the variable AY?
stx P8ZP_SCRATCH_REG
jsr FCOMP
ldx P8ZP_SCRATCH_REG
; -- is the float in FAC1 >= the variable AY? Result in A. Clobbers X.
jsr FCOMP
cmp #0
beq +
cmp #1
@ -239,16 +222,14 @@ var_fac1_greatereq_f .proc
.pend
var_fac1_notequal_f .proc
; -- are the floats numbers in FAC1 and the variable AY *not* identical?
stx P8ZP_SCRATCH_REG
; -- are the floats numbers in FAC1 and the variable AY *not* identical? Result in A. Clobbers X.
jsr FCOMP
ldx P8ZP_SCRATCH_REG
and #1
rts
.pend
vars_equal_f .proc
; -- are the mflpt5 numbers in P8ZP_SCRATCH_W1 and AY identical?
; -- are the mflpt5 numbers in P8ZP_SCRATCH_W1 and AY identical? Result in A
sta P8ZP_SCRATCH_W2
sty P8ZP_SCRATCH_W2+1
ldy #0
@ -279,13 +260,11 @@ _false lda #0
vars_less_f .proc
; -- is float in AY < float in P8ZP_SCRATCH_W2 ?
; -- is float in AY < float in P8ZP_SCRATCH_W2 ? Result in A. Clobbers X.
jsr MOVFM
lda P8ZP_SCRATCH_W2
ldy P8ZP_SCRATCH_W2+1
stx P8ZP_SCRATCH_REG
jsr FCOMP
ldx P8ZP_SCRATCH_REG
cmp #255
bne +
lda #1
@ -295,13 +274,11 @@ vars_less_f .proc
.pend
vars_lesseq_f .proc
; -- is float in AY <= float in P8ZP_SCRATCH_W2 ?
; -- is float in AY <= float in P8ZP_SCRATCH_W2 ? Result in A. Clobbers X.
jsr MOVFM
lda P8ZP_SCRATCH_W2
ldy P8ZP_SCRATCH_W2+1
stx P8ZP_SCRATCH_REG
jsr FCOMP
ldx P8ZP_SCRATCH_REG
cmp #255
bne +
- lda #1
@ -313,7 +290,7 @@ vars_lesseq_f .proc
.pend
less_f .proc
; -- is f1 < f2?
; -- is f1 < f2? Result in A. Clobbers X.
jsr compare_floats
cmp #255
beq compare_floats._return_true
@ -322,7 +299,7 @@ less_f .proc
lesseq_f .proc
; -- is f1 <= f2?
; -- is f1 <= f2? Result in A. Clobbers X.
jsr compare_floats
cmp #255
beq compare_floats._return_true
@ -332,7 +309,7 @@ lesseq_f .proc
.pend
greater_f .proc
; -- is f1 > f2?
; -- is f1 > f2? Result in A. Clobbers X.
jsr compare_floats
cmp #1
beq compare_floats._return_true
@ -340,7 +317,7 @@ greater_f .proc
.pend
greatereq_f .proc
; -- is f1 >= f2?
; -- is f1 >= f2? Result in A. Clobbers X.
jsr compare_floats
cmp #1
beq compare_floats._return_true
@ -351,6 +328,7 @@ greatereq_f .proc
set_array_float_from_fac1 .proc
; -- set the float in FAC1 in the array (index in A, array in P8ZP_SCRATCH_W1)
; clobbers X
sta P8ZP_SCRATCH_B1
asl a
asl a
@ -361,11 +339,8 @@ set_array_float_from_fac1 .proc
adc P8ZP_SCRATCH_W1
bcc +
iny
+ stx floats_store_reg
tax
jsr MOVMF
ldx floats_store_reg
rts
+ tax
jmp MOVMF
.pend

5
compiler/res/prog8lib/c64/floats.p8
View File

@ -159,12 +159,9 @@ asmsub GETADRAY () clobbers(X) -> uword @ AY {
sub rndf() -> float {
%asm {{
stx P8ZP_SCRATCH_REG
lda #1
jsr FREADSA
jsr RND ; rng into fac1
ldx P8ZP_SCRATCH_REG
rts
jmp RND ; rng into fac1
}}
}

10
compiler/res/prog8lib/c64/floats_funcs.asm
View File

@ -139,17 +139,11 @@ func_all_f_stack .proc
.pend
func_abs_f_into_FAC1 .proc
stx P8ZP_SCRATCH_REG
jsr MOVFM
jsr ABS
ldx P8ZP_SCRATCH_REG
rts
jmp ABS
.pend
func_sqrt_into_FAC1 .proc
stx P8ZP_SCRATCH_REG
jsr MOVFM
jsr SQR
ldx P8ZP_SCRATCH_REG
rts
jmp SQR
.pend

4
compiler/res/prog8lib/c64/graphics.p8
View File

@ -185,7 +185,6 @@ graphics {
lda length
and #7
sta separate_pixels
stx P8ZP_SCRATCH_REG
lsr length+1
ror length
lsr length+1
@ -210,8 +209,7 @@ _modified stx $ffff ; modified
inc _modified+2
+ dey
bne _modified
_zero ldx P8ZP_SCRATCH_REG
_zero
ldy separate_pixels
beq hline_zero2
lda _modified+1

14
compiler/res/prog8lib/c64/syslib.p8
View File

@ -104,34 +104,26 @@ romsub $FFED = SCREEN() -> ubyte @ X, ubyte @ Y ; read number of
romsub $FFF0 = PLOT(ubyte col @ Y, ubyte row @ X, bool dir @ Pc) -> ubyte @ X, ubyte @ Y ; read/set position of cursor on screen. Use txt.plot for a 'safe' wrapper that preserves X.
romsub $FFF3 = IOBASE() -> uword @ XY ; read base address of I/O devices
asmsub STOP2() -> ubyte @A {
asmsub STOP2() clobbers(X) -> ubyte @A {
; -- check if STOP key was pressed, returns true if so. More convenient to use than STOP() because that only sets the carry status flag.
%asm {{
txa
pha
jsr cbm.STOP
beq +
pla
tax
lda #0
rts
+ pla
tax
lda #1
+ lda #1
rts
}}
}
asmsub RDTIM16() -> uword @AY {
asmsub RDTIM16() clobbers(X) -> uword @AY {
; -- like RDTIM() but only returning the lower 16 bits in AY for convenience
%asm {{
stx P8ZP_SCRATCH_REG
jsr cbm.RDTIM
pha
txa
tay
pla
ldx P8ZP_SCRATCH_REG
rts
}}
}

69
compiler/res/prog8lib/c64/textio.p8
View File

@ -96,13 +96,12 @@ sub uppercase() {
c64.VMCSB &= ~2
}
asmsub scroll_left (bool alsocolors @ Pc) clobbers(A, Y) {
asmsub scroll_left (bool alsocolors @ Pc) clobbers(A, X, Y) {
; ---- scroll the whole screen 1 character to the left
; contents of the rightmost column are unchanged, you should clear/refill this yourself
; Carry flag determines if screen color data must be scrolled too
%asm {{
stx P8ZP_SCRATCH_REG
bcc _scroll_screen
+ ; scroll the screen and the color memory
@ -132,17 +131,15 @@ _scroll_screen ; scroll only the screen memory
dey
bpl -
ldx P8ZP_SCRATCH_REG
rts
}}
}
asmsub scroll_right (bool alsocolors @ Pc) clobbers(A) {
asmsub scroll_right (bool alsocolors @ Pc) clobbers(A,X) {
; ---- scroll the whole screen 1 character to the right
; contents of the leftmost column are unchanged, you should clear/refill this yourself
; Carry flag determines if screen color data must be scrolled too
%asm {{
stx P8ZP_SCRATCH_REG
bcc _scroll_screen
+ ; scroll the screen and the color memory
@ -168,17 +165,15 @@ _scroll_screen ; scroll only the screen memory
dex
bpl -
ldx P8ZP_SCRATCH_REG
rts
}}
}
asmsub scroll_up (bool alsocolors @ Pc) clobbers(A) {
asmsub scroll_up (bool alsocolors @ Pc) clobbers(A,X) {
; ---- scroll the whole screen 1 character up
; contents of the bottom row are unchanged, you should refill/clear this yourself
; Carry flag determines if screen color data must be scrolled too
%asm {{
stx P8ZP_SCRATCH_REG
bcc _scroll_screen
+ ; scroll the screen and the color memory
@ -204,17 +199,15 @@ _scroll_screen ; scroll only the screen memory
dex
bpl -
ldx P8ZP_SCRATCH_REG
rts
}}
}
asmsub scroll_down (bool alsocolors @ Pc) clobbers(A) {
asmsub scroll_down (bool alsocolors @ Pc) clobbers(A,X) {
; ---- scroll the whole screen 1 character down
; contents of the top row are unchanged, you should refill/clear this yourself
; Carry flag determines if screen color data must be scrolled too
%asm {{
stx P8ZP_SCRATCH_REG
bcc _scroll_screen
+ ; scroll the screen and the color memory
@ -240,7 +233,6 @@ _scroll_screen ; scroll only the screen memory
dex
bpl -
ldx P8ZP_SCRATCH_REG
rts
}}
}
@ -265,10 +257,9 @@ asmsub print (str text @ AY) clobbers(A,Y) {
}}
}
asmsub print_ub0 (ubyte value @ A) clobbers(A,Y) {
asmsub print_ub0 (ubyte value @ A) clobbers(A,X,Y) {
; ---- print the ubyte in A in decimal form, with left padding 0s (3 positions total)
%asm {{
stx P8ZP_SCRATCH_REG
jsr conv.ubyte2decimal
pha
tya
@ -276,16 +267,13 @@ asmsub print_ub0 (ubyte value @ A) clobbers(A,Y) {
pla
jsr cbm.CHROUT
txa
jsr cbm.CHROUT
ldx P8ZP_SCRATCH_REG
rts
jmp cbm.CHROUT
}}
}
asmsub print_ub (ubyte value @ A) clobbers(A,Y) {
asmsub print_ub (ubyte value @ A) clobbers(A,X,Y) {
; ---- print the ubyte in A in decimal form, without left padding 0s
%asm {{
stx P8ZP_SCRATCH_REG
jsr conv.ubyte2decimal
_print_byte_digits
pha
@ -301,16 +289,13 @@ _print_byte_digits
beq _ones
jsr cbm.CHROUT
_ones txa
jsr cbm.CHROUT
ldx P8ZP_SCRATCH_REG
rts
jmp cbm.CHROUT
}}
}
asmsub print_b (byte value @ A) clobbers(A,Y) {
asmsub print_b (byte value @ A) clobbers(A,X,Y) {
; ---- print the byte in A in decimal form, without left padding 0s
%asm {{
stx P8ZP_SCRATCH_REG
pha
cmp #0
bpl +
@ -322,10 +307,9 @@ asmsub print_b (byte value @ A) clobbers(A,Y) {
}}
}
asmsub print_ubhex (ubyte value @ A, bool prefix @ Pc) clobbers(A,Y) {
asmsub print_ubhex (ubyte value @ A, bool prefix @ Pc) clobbers(A,X,Y) {
; ---- print the ubyte in A in hex form (if Carry is set, a radix prefix '$' is printed as well)
%asm {{
stx P8ZP_SCRATCH_REG
bcc +
pha
lda #'$'
@ -334,16 +318,13 @@ asmsub print_ubhex (ubyte value @ A, bool prefix @ Pc) clobbers(A,Y) {
+ jsr conv.ubyte2hex
jsr cbm.CHROUT
tya
jsr cbm.CHROUT
ldx P8ZP_SCRATCH_REG
rts
jmp cbm.CHROUT
}}
}
asmsub print_ubbin (ubyte value @ A, bool prefix @ Pc) clobbers(A,Y) {
asmsub print_ubbin (ubyte value @ A, bool prefix @ Pc) clobbers(A,X,Y) {
; ---- print the ubyte in A in binary form (if Carry is set, a radix prefix '%' is printed as well)
%asm {{
stx P8ZP_SCRATCH_REG
sta P8ZP_SCRATCH_B1
bcc +
lda #'%'
@ -356,12 +337,11 @@ asmsub print_ubbin (ubyte value @ A, bool prefix @ Pc) clobbers(A,Y) {
+ jsr cbm.CHROUT
dey
bne -
ldx P8ZP_SCRATCH_REG
rts
}}
}
asmsub print_uwbin (uword value @ AY, bool prefix @ Pc) clobbers(A,Y) {
asmsub print_uwbin (uword value @ AY, bool prefix @ Pc) clobbers(A,X,Y) {
; ---- print the uword in A/Y in binary form (if Carry is set, a radix prefix '%' is printed as well)
%asm {{
pha
@ -373,7 +353,7 @@ asmsub print_uwbin (uword value @ AY, bool prefix @ Pc) clobbers(A,Y) {
}}
}
asmsub print_uwhex (uword value @ AY, bool prefix @ Pc) clobbers(A,Y) {
asmsub print_uwhex (uword value @ AY, bool prefix @ Pc) clobbers(A,X,Y) {
; ---- print the uword in A/Y in hexadecimal form (4 digits)
; (if Carry is set, a radix prefix '$' is printed as well)
%asm {{
@ -386,10 +366,9 @@ asmsub print_uwhex (uword value @ AY, bool prefix @ Pc) clobbers(A,Y) {
}}
}
asmsub print_uw0 (uword value @ AY) clobbers(A,Y) {
asmsub print_uw0 (uword value @ AY) clobbers(A,X,Y) {
; ---- print the uword in A/Y in decimal form, with left padding 0s (5 positions total)
%asm {{
stx P8ZP_SCRATCH_REG
jsr conv.uword2decimal
ldy #0
- lda conv.uword2decimal.decTenThousands,y
@ -397,17 +376,14 @@ asmsub print_uw0 (uword value @ AY) clobbers(A,Y) {
jsr cbm.CHROUT
iny
bne -
+ ldx P8ZP_SCRATCH_REG
rts
+ rts
}}
}
asmsub print_uw (uword value @ AY) clobbers(A,Y) {
asmsub print_uw (uword value @ AY) clobbers(A,X,Y) {
; ---- print the uword in A/Y in decimal form, without left padding 0s
%asm {{
stx P8ZP_SCRATCH_REG
jsr conv.uword2decimal
ldx P8ZP_SCRATCH_REG
ldy #0
- lda conv.uword2decimal.decTenThousands,y
beq _allzero
@ -428,7 +404,7 @@ _allzero
}}
}
asmsub print_w (word value @ AY) clobbers(A,Y) {
asmsub print_w (word value @ AY) clobbers(A,X,Y) {
; ---- print the (signed) word in A/Y in decimal form, without left padding 0's
%asm {{
cpy #0
@ -582,15 +558,10 @@ _colormod sta $ffff ; modified
}}
}
asmsub plot (ubyte col @ Y, ubyte row @ A) clobbers(A) {
; ---- safe wrapper around PLOT kernal routine, to save the X register.
asmsub plot (ubyte col @ Y, ubyte row @ X) {
%asm {{
stx P8ZP_SCRATCH_REG
tax
clc
jsr cbm.PLOT
ldx P8ZP_SCRATCH_REG
rts
jmp cbm.PLOT
}}
}

34
compiler/res/prog8lib/conv.p8
View File

@ -8,25 +8,22 @@ conv {
str @shared string_out = "????????????????" ; result buffer for the string conversion routines
asmsub str_ub0 (ubyte value @ A) clobbers(A,Y) {
asmsub str_ub0 (ubyte value @ A) clobbers(A,X,Y) {
; ---- convert the ubyte in A in decimal string form, with left padding 0s (3 positions total)
%asm {{
stx P8ZP_SCRATCH_REG
jsr conv.ubyte2decimal
sty string_out
sta string_out+1
stx string_out+2
lda #0
sta string_out+3
ldx P8ZP_SCRATCH_REG
rts
}}
}
asmsub str_ub (ubyte value @ A) clobbers(A,Y) {
asmsub str_ub (ubyte value @ A) clobbers(A,X,Y) {
; ---- convert the ubyte in A in decimal string form, without left padding 0s
%asm {{
stx P8ZP_SCRATCH_REG
ldy #0
sty P8ZP_SCRATCH_B1
jsr conv.ubyte2decimal
@ -52,15 +49,13 @@ _output_byte_digits
iny
lda #0
sta string_out,y
ldx P8ZP_SCRATCH_REG
rts
}}
}
asmsub str_b (byte value @ A) clobbers(A,Y) {
asmsub str_b (byte value @ A) clobbers(A,X,Y) {
; ---- convert the byte in A in decimal string form, without left padding 0s
%asm {{
stx P8ZP_SCRATCH_REG
ldy #0
sty P8ZP_SCRATCH_B1
cmp #0
@ -75,7 +70,7 @@ asmsub str_b (byte value @ A) clobbers(A,Y) {
}}
}
asmsub str_ubhex (ubyte value @ A) clobbers(A,Y) {
asmsub str_ubhex (ubyte value @ A) clobbers(A,X,Y) {
; ---- convert the ubyte in A in hex string form
%asm {{
jsr conv.ubyte2hex
@ -87,7 +82,7 @@ asmsub str_ubhex (ubyte value @ A) clobbers(A,Y) {
}}
}
asmsub str_ubbin (ubyte value @ A) clobbers(A,Y) {
asmsub str_ubbin (ubyte value @ A) clobbers(A,X,Y) {
; ---- convert the ubyte in A in binary string form
%asm {{
sta P8ZP_SCRATCH_B1
@ -106,7 +101,7 @@ _digit sta string_out,y
}}
}
asmsub str_uwbin (uword value @ AY) clobbers(A,Y) {
asmsub str_uwbin (uword value @ AY) clobbers(A,X,Y) {
; ---- convert the uword in A/Y in binary string form
%asm {{
sta P8ZP_SCRATCH_REG
@ -145,10 +140,9 @@ asmsub str_uwhex (uword value @ AY) clobbers(A,Y) {
}}
}
asmsub str_uw0 (uword value @ AY) clobbers(A,Y) {
asmsub str_uw0 (uword value @ AY) clobbers(A,X,Y) {
; ---- convert the uword in A/Y in decimal string form, with left padding 0s (5 positions total)
%asm {{
stx P8ZP_SCRATCH_REG
jsr conv.uword2decimal
ldy #0
- lda conv.uword2decimal.decTenThousands,y
@ -156,15 +150,13 @@ asmsub str_uw0 (uword value @ AY) clobbers(A,Y) {
beq +
iny
bne -
+ ldx P8ZP_SCRATCH_REG
rts
+ rts
}}
}
asmsub str_uw (uword value @ AY) clobbers(A,Y) {
asmsub str_uw (uword value @ AY) clobbers(A,X,Y) {
; ---- convert the uword in A/Y in decimal string form, without left padding 0s
%asm {{
stx P8ZP_SCRATCH_REG
jsr conv.uword2decimal
ldx #0
_output_digits
@ -182,7 +174,6 @@ _gotdigit sta string_out,x
bne _gotdigit
_end lda #0
sta string_out,x
ldx P8ZP_SCRATCH_REG
rts
_allzero lda #'0'
@ -192,12 +183,11 @@ _allzero lda #'0'
}}
}
asmsub str_w (word value @ AY) clobbers(A,Y) {
asmsub str_w (word value @ AY) clobbers(A,X,Y) {
; ---- convert the (signed) word in A/Y in decimal string form, without left padding 0's
%asm {{
cpy #0
bpl str_uw
stx P8ZP_SCRATCH_REG
pha
lda #'-'
sta string_out
@ -700,10 +690,9 @@ asmsub byte2decimal (byte value @A) -> ubyte @Y, ubyte @A, ubyte @X {
}}
}
asmsub ubyte2hex (ubyte value @A) -> ubyte @A, ubyte @Y {
asmsub ubyte2hex (ubyte value @A) clobbers(X) -> ubyte @A, ubyte @Y {
; ---- A to hex petscii string in AY (first hex char in A, second hex char in Y)
%asm {{
stx P8ZP_SCRATCH_REG
pha
and #$0f
tax
@ -715,7 +704,6 @@ asmsub ubyte2hex (ubyte value @A) -> ubyte @A, ubyte @Y {
lsr a
tax
lda _hex_digits,x
ldx P8ZP_SCRATCH_REG
rts
_hex_digits .text "0123456789abcdef" ; can probably be reused for other stuff as well

11
compiler/res/prog8lib/cx16/diskio.p8
View File

@ -488,7 +488,6 @@ io_error:
sta P8ZP_SCRATCH_W1
lda address+1
sta P8ZP_SCRATCH_W1+1
stx P8ZP_SCRATCH_REG
ldx end_address
ldy end_address+1
lda headerless
@ -499,7 +498,6 @@ io_error:
+ lda #<P8ZP_SCRATCH_W1
jsr cbm.SAVE
+ php
ldx P8ZP_SCRATCH_REG
plp
}}
@ -547,7 +545,6 @@ io_error:
secondary |= %00000010 ; activate cx16 kernal headerless load support
cbm.SETLFS(1, drivenumber, secondary)
%asm {{
stx P8ZP_SCRATCH_REG
lda #0
ldx address_override
ldy address_override+1
@ -555,7 +552,7 @@ io_error:
bcs +
stx cx16.r1
sty cx16.r1+1
+ ldx P8ZP_SCRATCH_REG
+
}}
cbm.CLRCHN()
@ -607,14 +604,13 @@ io_error:
return $2000 * (cx16.getrambank() - startbank) + endaddress - startaddress
}
asmsub vload(str name @R0, ubyte bank @A, uword address @R1) -> ubyte @A {
asmsub vload(str name @R0, ubyte bank @A, uword address @R1) clobbers(X, Y) -> ubyte @A {
; -- like the basic command VLOAD "filename",drivenumber,bank,address
; loads a file into Vera's video memory in the given bank:address, returns success in A
; the file has to have the usual 2 byte header (which will be skipped)
%asm {{
clc
internal_vload:
phx
pha
ldx drivenumber
bcc +
@ -642,13 +638,12 @@ internal_vload:
+ jsr cbm.CLRCHN
lda #1
jsr cbm.CLOSE
plx
lda P8ZP_SCRATCH_B1
rts
}}
}
asmsub vload_raw(str name @R0, ubyte bank @A, uword address @R1) -> ubyte @A {
asmsub vload_raw(str name @R0, ubyte bank @A, uword address @R1) clobbers(X, Y) -> ubyte @A {
; -- like the basic command BVLOAD "filename",drivenumber,bank,address
; loads a file into Vera's video memory in the given bank:address, returns success in A
; the file is read fully including the first two bytes.

10
compiler/res/prog8lib/cx16/floats.p8
View File

@ -99,14 +99,11 @@ asmsub FREADSA (byte value @A) clobbers(A,X,Y) {
asmsub GIVUAYFAY (uword value @ AY) clobbers(A,X,Y) {
; ---- unsigned 16 bit word in A/Y (lo/hi) to fac1
%asm {{
phx
sty $c4 ; facmo ($64 on c128)
sta $c5 ; facmo+1 ($65 on c128)
ldx #$90
sec
jsr FLOATC
plx
rts
jmp FLOATC
}}
}
@ -144,11 +141,8 @@ asmsub FREADUY (ubyte value @Y) {
sub rndf() -> float {
%asm {{
phx
lda #1
jsr RND_0
plx
rts
jmp RND_0
}}
}

19
compiler/res/prog8lib/cx16/gfx2.p8
View File

@ -222,7 +222,6 @@ _done
position(x, y)
%asm {{
lda color
phx
ldx length+1
beq +
ldy #0
@ -236,7 +235,7 @@ _done
- sta cx16.VERA_DATA0
dey
bne -
+ plx
+
}}
}
6 -> {
@ -262,7 +261,6 @@ _done
sta cx16.VERA_ADDR_L
lda cx16.r0+1
sta cx16.VERA_ADDR_M
phx
ldx x
}}
@ -285,10 +283,6 @@ _done
+ inx ; next pixel
}}
}
%asm {{
plx
}}
}
}
}
@ -933,13 +927,12 @@ skip:
}}
}
asmsub next_pixels(uword pixels @AY, uword amount @R0) clobbers(A, Y) {
asmsub next_pixels(uword pixels @AY, uword amount @R0) clobbers(A, X, Y) {
; -- sets the next bunch of pixels from a prepared array of bytes.
; for 8 bpp screens this will plot 1 pixel per byte.
; for 1 bpp screens it will plot 8 pixels at once (colors are the bit patterns per byte).
; for 2 bpp screens it will plot 4 pixels at once (colors are the bit patterns per byte).
%asm {{
phx
sta P8ZP_SCRATCH_W1
sty P8ZP_SCRATCH_W1+1
ldx cx16.r0+1
@ -961,14 +954,13 @@ skip:
iny
dex
bne -
+ plx
+ rts
}}
}
asmsub set_8_pixels_from_bits(ubyte bits @R0, ubyte oncolor @A, ubyte offcolor @Y) {
asmsub set_8_pixels_from_bits(ubyte bits @R0, ubyte oncolor @A, ubyte offcolor @Y) clobbers(X) {
; this is only useful in 256 color mode where one pixel equals one byte value.
%asm {{
phx
ldx #8
- asl cx16.r0
bcc +
@ -977,7 +969,6 @@ skip:
+ sty cx16.VERA_DATA0
+ dex
bne -
plx
rts
}}
}
@ -1048,7 +1039,6 @@ skip:
position(x,y)
y++
%asm {{
phx
ldx color
lda cx16.VERA_DATA1
sta P8ZP_SCRATCH_B1
@ -1060,7 +1050,6 @@ skip:
+ lda cx16.VERA_DATA0 ; don't write a pixel, but do advance to the next address
+ dey
bne -
plx
}}
}
x+=8

28
compiler/res/prog8lib/cx16/syslib.p8
View File

@ -53,25 +53,21 @@ romsub $FFF3 = IOBASE() -> uword @ XY ; read base addr
; ---- utility
asmsub STOP2() -> ubyte @A {
asmsub STOP2() clobbers(X) -> ubyte @A {
; -- check if STOP key was pressed, returns true if so. More convenient to use than STOP() because that only sets the carry status flag.
%asm {{
phx
jsr cbm.STOP
beq +
plx
lda #0
rts
+ plx
lda #1
+ lda #1
rts
}}
}
asmsub RDTIM16() -> uword @AY {
asmsub RDTIM16() clobbers(X) -> uword @AY {
; -- like RDTIM() but only returning the lower 16 bits in AY for convenience. Also avoids ram bank issue for irqs.
%asm {{
phx
php
sei
jsr cbm.RDTIM
@ -81,7 +77,6 @@ asmsub RDTIM16() -> uword @AY {
txa
tay
pla
plx
rts
}}
}
@ -454,15 +449,12 @@ asmsub mouse_config2(ubyte shape @A) clobbers (A, X, Y) {
}}
}
asmsub mouse_pos() -> ubyte @A {
asmsub mouse_pos() clobbers(X) -> ubyte @A {
; -- short wrapper around mouse_get() kernal routine:
; -- gets the position of the mouse cursor in cx16.r0 and cx16.r1 (x/y coordinate), returns mouse button status.
%asm {{
phx
ldx #cx16.r0
jsr cx16.mouse_get
plx
rts
jmp cx16.mouse_get
}}
}
@ -500,7 +492,7 @@ inline asmsub getrambank() -> ubyte @A {
}}
}
asmsub numbanks() -> uword @AY {
asmsub numbanks() clobbers(X) -> uword @AY {
; -- Returns the number of available RAM banks according to the kernal (each bank is 8 Kb).
; Note that the number of such banks can be 256 so a word is returned.
; But just looking at the A register (the LSB of the result word) could suffice if you know that A=0 means 256 banks:
@ -508,15 +500,13 @@ asmsub numbanks() -> uword @AY {
; Kernal's MEMTOP routine reports 0 in this case but that doesn't mean 'zero banks', instead it means 256 banks,
; as there is no X16 without at least 1 page of banked RAM. So this routine returns 256 instead of 0.
%asm {{
phx
sec
jsr cbm.MEMTOP
ldy #0
cmp #0
bne +
iny
+ plx
rts
+ rts
}}
}
@ -974,19 +964,17 @@ asmsub set_rasterline(uword line @AY) {
void cx16.i2c_write_byte($42, $05, activity)
}
asmsub wait(uword jiffies @AY) {
asmsub wait(uword jiffies @AY) clobbers(X) {
; --- wait approximately the given number of jiffies (1/60th seconds) (N or N+1)
; note: the system irq handler has to be active for this to work as it depends on the system jiffy clock
; note: this routine cannot be used from inside a irq handler
%asm {{
phx
sta P8ZP_SCRATCH_W1
sty P8ZP_SCRATCH_W1+1
_loop lda P8ZP_SCRATCH_W1
ora P8ZP_SCRATCH_W1+1
bne +
plx
rts
+ sei

93
compiler/res/prog8lib/cx16/textio.p8
View File

@ -42,11 +42,10 @@ asmsub column(ubyte col @A) clobbers(A, X, Y) {
}}
}
asmsub fill_screen (ubyte char @ A, ubyte color @ Y) clobbers(A) {
asmsub fill_screen (ubyte char @ A, ubyte color @ Y) clobbers(A, X) {
; ---- fill the character screen with the given fill character and character color.
%asm {{
sty _ly+1
phx
pha
jsr cbm.SCREEN ; get dimensions in X/Y
txa
@ -75,8 +74,7 @@ _ly ldy #1 ; modified
stz cx16.VERA_ADDR_L
inc cx16.VERA_ADDR_M ; next line
bra _lx
+ plx
rts
+ rts
set_vera_textmatrix_addresses:
stz cx16.VERA_CTRL
@ -90,11 +88,10 @@ set_vera_textmatrix_addresses:
}}
}
asmsub clear_screenchars (ubyte char @ A) clobbers(Y) {
asmsub clear_screenchars (ubyte char @ A) clobbers(X, Y) {
; ---- clear the character screen with the given fill character (leaves colors)
; (assumes screen matrix is at the default address)
%asm {{
phx
pha
jsr cbm.SCREEN ; get dimensions in X/Y
txa
@ -116,16 +113,14 @@ _lx ldx #0 ; modified
stz cx16.VERA_ADDR_L
inc cx16.VERA_ADDR_M ; next line
bra _lx
+ plx
rts
+ rts
}}
}
asmsub clear_screencolors (ubyte color @ A) clobbers(Y) {
asmsub clear_screencolors (ubyte color @ A) clobbers(X, Y) {
; ---- clear the character screen colors with the given color (leaves characters).
; (assumes color matrix is at the default address)
%asm {{
phx
sta _la+1
jsr cbm.SCREEN ; get dimensions in X/Y
txa
@ -150,8 +145,7 @@ _la lda #0 ; modified
sta cx16.VERA_ADDR_L
inc cx16.VERA_ADDR_M ; next line
bra _lx
+ plx
rts
+ rts
}}
}
@ -192,11 +186,10 @@ sub iso_off() {
}
asmsub scroll_left() clobbers(A, Y) {
asmsub scroll_left() clobbers(A, X, Y) {
; ---- scroll the whole screen 1 character to the left
; contents of the rightmost column are unchanged, you should clear/refill this yourself
%asm {{
phx
jsr cbm.SCREEN
dex
stx _lx+1
@ -233,16 +226,14 @@ _lx ldx #0 ; modified
lda #0
sta cx16.VERA_CTRL
plx
rts
}}
}
asmsub scroll_right() clobbers(A,Y) {
asmsub scroll_right() clobbers(A,X,Y) {
; ---- scroll the whole screen 1 character to the right
; contents of the leftmost column are unchanged, you should clear/refill this yourself
%asm {{
phx
jsr cbm.SCREEN
dex
stx _lx+1
@ -287,16 +278,14 @@ _lx ldx #0 ; modified
lda #0
sta cx16.VERA_CTRL
plx
rts
}}
}
asmsub scroll_up() clobbers(A, Y) {
asmsub scroll_up() clobbers(A, X, Y) {
; ---- scroll the whole screen 1 character up
; contents of the bottom row are unchanged, you should refill/clear this yourself
%asm {{
phx
jsr cbm.SCREEN
stx _nextline+1
dey
@ -337,16 +326,14 @@ _nextline
+ lda #0
sta cx16.VERA_CTRL
plx
rts
}}
}
asmsub scroll_down() clobbers(A, Y) {
asmsub scroll_down() clobbers(A, X, Y) {
; ---- scroll the whole screen 1 character down
; contents of the top row are unchanged, you should refill/clear this yourself
%asm {{
phx
jsr cbm.SCREEN
stx _nextline+1
dey
@ -393,7 +380,6 @@ _nextline
+ lda #0
sta cx16.VERA_CTRL
plx
rts
}}
}
@ -418,10 +404,9 @@ asmsub print (str text @ AY) clobbers(A,Y) {
}}
}
asmsub print_ub0 (ubyte value @ A) clobbers(A,Y) {
asmsub print_ub0 (ubyte value @ A) clobbers(A,X,Y) {
; ---- print the ubyte in A in decimal form, with left padding 0s (3 positions total)
%asm {{
phx
jsr conv.ubyte2decimal
pha
tya
@ -429,16 +414,13 @@ asmsub print_ub0 (ubyte value @ A) clobbers(A,Y) {
pla
jsr cbm.CHROUT
txa
jsr cbm.CHROUT
plx
rts
jmp cbm.CHROUT
}}
}
asmsub print_ub (ubyte value @ A) clobbers(A,Y) {
asmsub print_ub (ubyte value @ A) clobbers(A,X,Y) {
; ---- print the ubyte in A in decimal form, without left padding 0s
%asm {{
phx
jsr conv.ubyte2decimal
_print_byte_digits
pha
@ -454,16 +436,13 @@ _print_byte_digits
beq _ones
jsr cbm.CHROUT
_ones txa
jsr cbm.CHROUT
plx
rts
jmp cbm.CHROUT
}}
}
asmsub print_b (byte value @ A) clobbers(A,Y) {
asmsub print_b (byte value @ A) clobbers(A,X,Y) {
; ---- print the byte in A in decimal form, without left padding 0s
%asm {{
phx
pha
cmp #0
bpl +
@ -475,10 +454,9 @@ asmsub print_b (byte value @ A) clobbers(A,Y) {
}}
}
asmsub print_ubhex (ubyte value @ A, bool prefix @ Pc) clobbers(A,Y) {
asmsub print_ubhex (ubyte value @ A, bool prefix @ Pc) clobbers(A,X,Y) {
; ---- print the ubyte in A in hex form (if Carry is set, a radix prefix '$' is printed as well)
%asm {{
phx
bcc +
pha
lda #'$'
@ -487,16 +465,13 @@ asmsub print_ubhex (ubyte value @ A, bool prefix @ Pc) clobbers(A,Y) {
+ jsr conv.ubyte2hex
jsr cbm.CHROUT
tya
jsr cbm.CHROUT
plx
rts
jmp cbm.CHROUT
}}
}
asmsub print_ubbin (ubyte value @ A, bool prefix @ Pc) clobbers(A,Y) {
asmsub print_ubbin (ubyte value @ A, bool prefix @ Pc) clobbers(A,X,Y) {
; ---- print the ubyte in A in binary form (if Carry is set, a radix prefix '%' is printed as well)
%asm {{
phx
sta P8ZP_SCRATCH_B1
bcc +
lda #'%'
@ -509,12 +484,11 @@ asmsub print_ubbin (ubyte value @ A, bool prefix @ Pc) clobbers(A,Y) {
+ jsr cbm.CHROUT
dey
bne -
plx
rts
}}
}
asmsub print_uwbin (uword value @ AY, bool prefix @ Pc) clobbers(A,Y) {
asmsub print_uwbin (uword value @ AY, bool prefix @ Pc) clobbers(A,X,Y) {
; ---- print the uword in A/Y in binary form (if Carry is set, a radix prefix '%' is printed as well)
%asm {{
pha
@ -526,7 +500,7 @@ asmsub print_uwbin (uword value @ AY, bool prefix @ Pc) clobbers(A,Y) {
}}
}
asmsub print_uwhex (uword value @ AY, bool prefix @ Pc) clobbers(A,Y) {
asmsub print_uwhex (uword value @ AY, bool prefix @ Pc) clobbers(A,X,Y) {
; ---- print the uword in A/Y in hexadecimal form (4 digits)
; (if Carry is set, a radix prefix '$' is printed as well)
%asm {{
@ -539,10 +513,9 @@ asmsub print_uwhex (uword value @ AY, bool prefix @ Pc) clobbers(A,Y) {
}}
}
asmsub print_uw0 (uword value @ AY) clobbers(A,Y) {
asmsub print_uw0 (uword value @ AY) clobbers(A,X,Y) {
; ---- print the uword in A/Y in decimal form, with left padding 0s (5 positions total)
%asm {{
phx
jsr conv.uword2decimal
ldy #0
- lda conv.uword2decimal.decTenThousands,y
@ -550,17 +523,14 @@ asmsub print_uw0 (uword value @ AY) clobbers(A,Y) {
jsr cbm.CHROUT
iny
bne -
+ plx
rts
+ rts
}}
}
asmsub print_uw (uword value @ AY) clobbers(A,Y) {
asmsub print_uw (uword value @ AY) clobbers(A,X,Y) {
; ---- print the uword in A/Y in decimal form, without left padding 0s
%asm {{
phx
jsr conv.uword2decimal
plx
ldy #0
- lda conv.uword2decimal.decTenThousands,y
beq _allzero
@ -581,7 +551,7 @@ _allzero
}}
}
asmsub print_w (word value @ AY) clobbers(A,Y) {
asmsub print_w (word value @ AY) clobbers(A,X,Y) {
; ---- print the (signed) word in A/Y in decimal form, without left padding 0's
%asm {{
cpy #0
@ -704,12 +674,11 @@ asmsub getclr (ubyte col @A, ubyte row @Y) -> ubyte @ A {
}}
}
sub setcc (ubyte column, ubyte row, ubyte char, ubyte charcolor) {
sub setcc (ubyte column, ubyte row, ubyte char, ubyte charcolor) {
; ---- set char+color at the given position on the screen
; note: color handling is the same as on the C64: it only sets the foreground color and leaves the background color as is.
; Use setcc2 if you want Cx-16 specific feature of setting both Bg+Fg colors (is faster as well).
%asm {{
phx
lda column
asl a
tax
@ -732,7 +701,6 @@ sub setcc (ubyte column, ubyte row, ubyte char, ubyte charcolor) {
and #$f0
ora P8ZP_SCRATCH_B1
sta cx16.VERA_DATA0
plx
rts
}}
}
@ -742,7 +710,6 @@ sub setcc2 (ubyte column, ubyte row, ubyte char, ubyte colors) {
; note: on the CommanderX16 this allows you to set both Fg and Bg colors;
; use the high nybble in A to set the Bg color! Is a bit faster than setcc() too.
%asm {{
phx
lda column
asl a
tax
@ -760,20 +727,14 @@ sub setcc2 (ubyte column, ubyte row, ubyte char, ubyte colors) {
inc cx16.VERA_ADDR_L
lda colors
sta cx16.VERA_DATA0
plx
rts
}}
}
asmsub plot (ubyte col @ Y, ubyte row @ A) clobbers(A) {
; ---- safe wrapper around PLOT kernal routine, to save the X register.
asmsub plot (ubyte col @ Y, ubyte row @ X) {
%asm {{
phx
tax
clc
jsr cbm.PLOT
plx
rts
jmp cbm.PLOT
}}
}

5
compiler/res/prog8lib/diskio.p8
View File

@ -455,13 +455,11 @@ io_error:
sta P8ZP_SCRATCH_W1
lda address+1
sta P8ZP_SCRATCH_W1+1
stx P8ZP_SCRATCH_REG
lda #<P8ZP_SCRATCH_W1
ldx end_address
ldy end_address+1
jsr cbm.SAVE
php
ldx P8ZP_SCRATCH_REG
plp
}}
@ -488,7 +486,6 @@ io_error:
secondary = 0
cbm.SETLFS(1, drivenumber, secondary)
%asm {{
stx P8ZP_SCRATCH_REG
lda #0
ldx address_override
ldy address_override+1
@ -496,7 +493,7 @@ io_error:
bcs +
stx cx16.r1
sty cx16.r1+1
+ ldx P8ZP_SCRATCH_REG
+
}}
cbm.CLRCHN()

61
compiler/res/prog8lib/floats_functions.p8
View File

@ -5,7 +5,6 @@ floats {
sub print_f(float value) {
; ---- prints the floating point value (without a newline).
%asm {{
stx floats_store_reg
lda #<value
ldy #>value
jsr MOVFM ; load float into fac1
@ -18,8 +17,7 @@ sub print_f(float value) {
jsr cbm.CHROUT
iny
bne -
+ ldx floats_store_reg
rts
+ rts
}}
}
@ -44,10 +42,7 @@ sub sin(float angle) -> float {
lda #<angle
ldy #>angle
jsr MOVFM
stx P8ZP_SCRATCH_REG
jsr SIN
ldx P8ZP_SCRATCH_REG
rts
jmp SIN
}}
}
@ -56,9 +51,7 @@ sub cos(float angle) -> float {
lda #<angle
ldy #>angle
jsr MOVFM
stx P8ZP_SCRATCH_REG
jsr COS
ldx P8ZP_SCRATCH_REG
jmp COS
rts
}}
}
@ -68,10 +61,7 @@ sub tan(float value) -> float {
lda #<value
ldy #>value
jsr MOVFM
stx P8ZP_SCRATCH_REG
jsr TAN
ldx P8ZP_SCRATCH_REG
rts
jmp TAN
}}
}
@ -80,10 +70,7 @@ sub atan(float value) -> float {
lda #<value
ldy #>value
jsr MOVFM
stx P8ZP_SCRATCH_REG
jsr ATN
ldx P8ZP_SCRATCH_REG
rts
jmp ATN
}}
}
@ -92,10 +79,7 @@ sub ln(float value) -> float {
lda #<value
ldy #>value
jsr MOVFM
stx P8ZP_SCRATCH_REG
jsr LOG
ldx P8ZP_SCRATCH_REG
rts
jmp LOG
}}
}
@ -104,15 +88,12 @@ sub log2(float value) -> float {
lda #<value
ldy #>value
jsr MOVFM
stx P8ZP_SCRATCH_REG
jsr LOG
jsr MOVEF
lda #<FL_LOG2_const
ldy #>FL_LOG2_const
jsr MOVFM
jsr FDIVT
ldx P8ZP_SCRATCH_REG
rts
jmp FDIVT
}}
}
@ -122,12 +103,9 @@ sub rad(float angle) -> float {
lda #<angle
ldy #>angle
jsr MOVFM
stx P8ZP_SCRATCH_REG
lda #<_pi_div_180
ldy #>_pi_div_180
jsr FMULT
ldx P8ZP_SCRATCH_REG
rts
jmp FMULT
_pi_div_180 .byte 123, 14, 250, 53, 18 ; pi / 180
}}
}
@ -138,11 +116,9 @@ sub deg(float angle) -> float {
lda #<angle
ldy #>angle
jsr MOVFM
stx P8ZP_SCRATCH_REG
lda #<_one_over_pi_div_180
ldy #>_one_over_pi_div_180
jsr FMULT
ldx P8ZP_SCRATCH_REG
jmp FMULT
rts
_one_over_pi_div_180 .byte 134, 101, 46, 224, 211 ; 1 / (pi * 180)
}}
@ -153,11 +129,8 @@ sub round(float value) -> float {
lda #<value
ldy #>value
jsr MOVFM
stx P8ZP_SCRATCH_REG
jsr FADDH
jsr INT
ldx P8ZP_SCRATCH_REG
rts
jmp INT
}}
}
@ -166,10 +139,7 @@ sub floor(float value) -> float {
lda #<value
ldy #>value
jsr MOVFM
stx P8ZP_SCRATCH_REG
jsr INT
ldx P8ZP_SCRATCH_REG
rts
jmp INT
}}
}
@ -179,7 +149,6 @@ sub ceil(float value) -> float {
lda #<value
ldy #>value
jsr MOVFM
stx P8ZP_SCRATCH_REG
ldx #<fmath_float1
ldy #>fmath_float1
jsr MOVMF
@ -192,8 +161,7 @@ sub ceil(float value) -> float {
lda #<FL_ONE_const
ldy #>FL_ONE_const
jsr FADD
+ ldx P8ZP_SCRATCH_REG
rts
+ rts
}}
}
@ -202,14 +170,11 @@ sub rndseedf(float seed) {
seed = -seed ; make sure fp seed is always negative
%asm {{
stx floats_store_reg
lda #<seed
ldy #>seed
jsr MOVFM ; load float into fac1
lda #-1
jsr floats.RND
ldx floats_store_reg
rts
jmp floats.RND
}}
}

13
compiler/res/prog8lib/math.asm
View File

@ -7,9 +7,6 @@
;
math_store_reg .byte 0 ; temporary storage
multiply_bytes .proc
; -- multiply 2 bytes A and Y, result as byte in A (signed or unsigned)
sta P8ZP_SCRATCH_B1 ; num1
@ -30,7 +27,6 @@ multiply_bytes_into_word .proc
; -- multiply 2 bytes A and Y, result as word in A/Y (unsigned)
sta P8ZP_SCRATCH_B1
sty P8ZP_SCRATCH_REG
stx math_store_reg
lda #0
ldx #8
lsr P8ZP_SCRATCH_B1
@ -43,7 +39,6 @@ multiply_bytes_into_word .proc
bne -
tay
lda P8ZP_SCRATCH_B1
ldx math_store_reg
rts
.pend
@ -55,7 +50,6 @@ multiply_words .proc
sta P8ZP_SCRATCH_W2
sty P8ZP_SCRATCH_W2+1
stx P8ZP_SCRATCH_REG
mult16 lda #0
sta result+2 ; clear upper bits of product
@ -77,7 +71,6 @@ mult16 lda #0
ror result
dex
bne -
ldx P8ZP_SCRATCH_REG
lda result
ldy result+1
rts
@ -124,7 +117,6 @@ divmod_ub_asm .proc
; division by zero will result in quotient = 255 and remainder = original number
sty P8ZP_SCRATCH_REG
sta P8ZP_SCRATCH_B1
stx math_store_reg
lda #0
ldx #8
@ -137,7 +129,6 @@ divmod_ub_asm .proc
dex
bne -
ldy P8ZP_SCRATCH_B1
ldx math_store_reg
rts
.pend
@ -197,7 +188,6 @@ result = dividend ;save memory by reusing divident to store the result
sta _divisor
sty _divisor+1
stx P8ZP_SCRATCH_REG
lda #0 ;preset remainder to 0
sta remainder
sta remainder+1
@ -224,7 +214,6 @@ result = dividend ;save memory by reusing divident to store the result
lda result
ldy result+1
ldx P8ZP_SCRATCH_REG
rts
_divisor .word 0
.pend
@ -800,7 +789,6 @@ tempsq = P8ZP_SCRATCH_B1 ; temp byte for intermediate result
sta numberl
sty numberh
stx P8ZP_SCRATCH_REG
lda #$00 ; clear a
sta squarel ; clear square low byte
@ -838,7 +826,6 @@ _nosqadd:
lda squarel
ldy squareh
ldx P8ZP_SCRATCH_REG
rts
.pend

4
compiler/res/prog8lib/prog8_funcs.asm
View File

@ -130,8 +130,6 @@ func_sqrt16_into_A .proc
; integer square root from http://6502org.wikidot.com/software-math-sqrt
sta P8ZP_SCRATCH_W1
sty P8ZP_SCRATCH_W1+1
txa
pha
lda #0
sta P8ZP_SCRATCH_B1
sta P8ZP_SCRATCH_REG
@ -154,8 +152,6 @@ func_sqrt16_into_A .proc
rol P8ZP_SCRATCH_REG
dex
bne -
pla
tax
lda P8ZP_SCRATCH_B1
rts
.pend

2
compiler/res/prog8lib/string.p8
View File

@ -282,7 +282,6 @@ _done rts
str = P8ZP_SCRATCH_W1
stx P8ZP_SCRATCH_REG
sta str
sty str+1
lda cx16.r0
@ -294,7 +293,6 @@ str = P8ZP_SCRATCH_W1
jsr _match
lda #0
rol a
ldx P8ZP_SCRATCH_REG
rts

1
docs/source/todo.rst
View File

@ -1,7 +1,6 @@
TODO
====
- (branch): clean up all X register special handling in p8 code inline asm
- (branch): clean up docs about eval stack and X register
- (branch): fix optimizeCmpSequence in AsmOptimizer
- (branch): fix inplaceModification TODO in AugmentableAssignmentAsmGen

7
examples/cx16/cobramk3-gfx.p8
View File

@ -63,9 +63,8 @@ main {
cx16.GRAPH_put_next_char(c)
}
asmsub print_number_gfx(ubyte num @ A) clobbers(A,Y) {
asmsub print_number_gfx(ubyte num @ A) clobbers(A,X,Y) {
%asm {{
phx
jsr conv.ubyte2decimal
phx
pha
@ -81,9 +80,7 @@ main {
beq _ones
jsr cx16.GRAPH_put_char
_ones pla
jsr cx16.GRAPH_put_char
plx
rts
jmp cx16.GRAPH_put_char
}}
}