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optimized stuff

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This commit is contained in:
Irmen de Jong 2019-01-09 00:25:02 +01:00
parent 58854ef45b
commit 0ab0f02e75
11 changed files with 152 additions and 177 deletions
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38
compiler/prog8lib/c64flt.p8
View File

@ -9,7 +9,6 @@
~ c64flt {
; ---- this block contains C-64 floating point related functions ----
; @todo enable float-checkin astchecker.process(decl: VarDecl) again
const float PI = 3.141592653589793
const float TWOPI = 6.283185307179586
@ -192,54 +191,31 @@ asmsub GETADRAY () -> clobbers(X) -> (uword @ AY) {
}}
}
sub print_f (float value) {
asmsub print_f (float value @ AY) -> clobbers(A, Y) -> () {
; ---- prints the floating point value (without a newline) using basic rom routines.
; clobbers no registers.
; @todo version that takes A/Y pointer to float instead
%asm {{
pha
tya
pha
txa
pha
lda #<print_f_value
ldy #>print_f_value
stx c64.SCRATCH_ZPREGX
jsr c64flt.MOVFM ; load float into fac1
jsr c64flt.FOUT ; fac1 to string in A/Y
jsr c64.STROUT ; print string in A/Y
pla
tax
pla
tay
pla
ldx c64.SCRATCH_ZPREGX
rts
}}
}
sub print_fln (float value) {
asmsub print_fln (float value @ AY) -> clobbers(A, Y) -> () {
; ---- prints the floating point value (with a newline at the end) using basic rom routines
; clobbers no registers.
; @todo version that takes A/Y pointer to float instead
%asm {{
pha
tya
pha
txa
pha
lda #<print_fln_value
ldy #>print_fln_value
stx c64.SCRATCH_ZPREGX
jsr c64flt.MOVFM ; load float into fac1
jsr c64flt.FPRINTLN ; print fac1 with newline
pla
tax
pla
tay
pla
ldx c64.SCRATCH_ZPREGX
rts
}}
}
; --- low level floating point assembly routines
%asm {{
ub2float .proc

4
compiler/prog8lib/c64lib.p8
View File

@ -42,6 +42,7 @@
memory ubyte SPRPTR5 = 2045
memory ubyte SPRPTR6 = 2046
memory ubyte SPRPTR7 = 2047
memory ubyte[8] SPRPTR = 2040
; ---- VIC-II registers ----
@ -62,6 +63,7 @@
memory ubyte SP6Y = $d00d
memory ubyte SP7X = $d00e
memory ubyte SP7Y = $d00f
memory ubyte[16] SPXY = $d000
memory ubyte MSIGX = $d010
memory ubyte SCROLY = $d011
@ -95,6 +97,8 @@
memory ubyte SP5COL = $d02c
memory ubyte SP6COL = $d02d
memory ubyte SP7COL = $d02e
memory ubyte[8] SPCOL = $d027
; ---- end of VIC-II registers ----

112
compiler/prog8lib/prog8lib.p8
View File

@ -42,7 +42,7 @@ pop_index_times_5 .proc
adc c64.SCRATCH_ZPB1 ; A*=5
rts
.pend
neg_b .proc
lda c64.ESTACK_LO+1,x
eor #255
@ -51,7 +51,7 @@ neg_b .proc
sta c64.ESTACK_LO+1,x
rts
.pend
neg_w .proc
sec
lda #0
@ -62,7 +62,7 @@ neg_w .proc
sta c64.ESTACK_HI+1,x
rts
.pend
inv_word .proc
lda c64.ESTACK_LO+1,x
eor #255
@ -82,7 +82,7 @@ not_byte .proc
+ sta c64.ESTACK_LO+1,x
rts
.pend
not_word .proc
lda c64.ESTACK_LO + 1,x
ora c64.ESTACK_HI + 1,x
@ -94,14 +94,14 @@ not_word .proc
sta c64.ESTACK_HI + 1,x
rts
.pend
abs_b .proc
; -- push abs(byte) on stack (as byte)
lda c64.ESTACK_LO+1,x
bmi neg_b
rts
.pend
abs_w .proc
; -- push abs(word) on stack (as word)
lda c64.ESTACK_HI+1,x
@ -121,7 +121,7 @@ add_w .proc
sta c64.ESTACK_HI+1,x
rts
.pend
sub_w .proc
; -- push word-word
inx
@ -144,7 +144,7 @@ mul_byte .proc
sta c64.ESTACK_LO+1,x
rts
.pend
mul_word .proc
inx
lda c64.ESTACK_LO,x
@ -162,7 +162,7 @@ mul_word .proc
sta c64.ESTACK_HI+1,x
rts
.pend
idiv_b .proc
; signed division: use unsigned division and fix sign of result afterwards
inx
@ -194,7 +194,7 @@ idiv_b .proc
rts
_remainder .byte 0
.pend
idiv_ub .proc
inx
ldy c64.ESTACK_LO,x
@ -204,7 +204,7 @@ idiv_ub .proc
sta c64.ESTACK_LO+1,x
rts
.pend
idiv_w .proc
; signed division: use unsigned division and fix sign of result afterwards
lda c64.ESTACK_HI+2,x
@ -232,7 +232,7 @@ idiv_w .proc
jmp neg_w ; negate result
+ rts
.pend
idiv_uw .proc
inx
lda c64.ESTACK_LO+1,x
@ -256,7 +256,7 @@ remainder_ub .proc
sta c64.ESTACK_LO+1,x
rts
.pend
remainder_uw .proc
inx
lda c64.ESTACK_LO+1,x
@ -272,7 +272,7 @@ remainder_uw .proc
sta c64.ESTACK_HI+1,x
rts
.pend
equal_w .proc
; -- are the two words on the stack identical?
lda c64.ESTACK_LO+1,x
@ -292,7 +292,7 @@ notequal_b .proc
sta c64.ESTACK_LO+1,x
rts
.pend
notequal_w .proc
; -- are the two words on the stack different?
inx
@ -306,14 +306,14 @@ notequal_w .proc
sta c64.ESTACK_LO+1,x
rts
.pend
less_ub .proc
lda c64.ESTACK_LO+2,x
cmp c64.ESTACK_LO+1,x
bcc equal_b._equal_b_true
bcs equal_b._equal_b_false
.pend
less_b .proc
; see http://www.6502.org/tutorials/compare_beyond.html
lda c64.ESTACK_LO+2,x
@ -364,10 +364,10 @@ lesseq_ub .proc
lda c64.ESTACK_LO+2,x
cmp c64.ESTACK_LO+1,x
bcc equal_b._equal_b_true
beq equal_b._equal_b_true ; @todo optimize by flipping comparison
beq equal_b._equal_b_true ; @todo optimize by flipping comparison?
bcs equal_b._equal_b_false
.pend
lesseq_b .proc
; see http://www.6502.org/tutorials/compare_beyond.html
lda c64.ESTACK_LO+2,x
@ -389,7 +389,7 @@ lesseq_uw .proc
bcs equal_b._equal_b_true
bcc equal_b._equal_b_false
.pend
lesseq_w .proc
lda c64.ESTACK_LO+1,x
cmp c64.ESTACK_LO+2,x
@ -408,7 +408,7 @@ greater_ub .proc
bcs equal_b._equal_b_true ; @todo optimize by flipping comparison?
bcc equal_b._equal_b_false
.pend
greater_b .proc
; see http://www.6502.org/tutorials/compare_beyond.html
lda c64.ESTACK_LO+2,x
@ -441,14 +441,14 @@ greater_w .proc
+ bmi equal_b._equal_b_true
bpl equal_b._equal_b_false
.pend
greatereq_ub .proc
lda c64.ESTACK_LO+2,x
cmp c64.ESTACK_LO+1,x
bcs equal_b._equal_b_true
bcc equal_b._equal_b_false
.pend
greatereq_b .proc
; see http://www.6502.org/tutorials/compare_beyond.html
lda c64.ESTACK_LO+2,x
@ -482,7 +482,7 @@ greatereq_w .proc
bmi equal_b._equal_b_false
.pend
func_sin8 .proc
ldy c64.ESTACK_LO+1,x
lda _sinecos8,y
@ -511,7 +511,7 @@ _ := 32767 * sin(range(256+64) * rad(360.0/256.0))
_sinecos8lo .byte <_
_sinecos8hi .byte >_
.pend
func_sin16u .proc
ldy c64.ESTACK_LO+1,x
lda _sinecos8ulo,y
@ -531,7 +531,7 @@ func_cos8 .proc
sta c64.ESTACK_LO+1,x
rts
.pend
func_cos8u .proc
ldy c64.ESTACK_LO+1,x
lda func_sin8u._sinecos8u+64,y
@ -556,8 +556,8 @@ func_cos16u .proc
sta c64.ESTACK_HI+1,x
rts
.pend
peek_address .proc
; -- peek address on stack into c64.SCRATCH_ZPWORD1
lda c64.ESTACK_LO+1,x
@ -585,7 +585,7 @@ _got_any lda #1
sta c64.ESTACK_LO+1,x
rts
.pend
func_any_w .proc
inx
lda c64.ESTACK_LO,x ; array size
@ -611,7 +611,7 @@ _got_not_all lda #0
sta c64.ESTACK_LO+1,x
rts
.pend
func_all_w .proc
inx
lda c64.ESTACK_LO,x ; array size
@ -634,7 +634,7 @@ _cmp_mod cpy #255 ; modified
sta c64.ESTACK_LO+1,x
rts
.pend
func_max_ub .proc
jsr pop_array_and_lengthmin1Y
lda #0
@ -651,7 +651,7 @@ func_max_ub .proc
dex
rts
.pend
func_max_b .proc
jsr pop_array_and_lengthmin1Y
lda #-128
@ -661,7 +661,7 @@ func_max_b .proc
sbc c64.SCRATCH_ZPB1
bvc +
eor #$80
+ bmi +
+ bmi +
lda (c64.SCRATCH_ZPWORD1),y
sta c64.SCRATCH_ZPB1
+ dey
@ -672,7 +672,7 @@ func_max_b .proc
dex
rts
.pend
func_max_uw .proc
lda #0
sta _result_maxuw
@ -708,7 +708,7 @@ _lesseq dey
rts
_result_maxuw .word 0
.pend
func_max_w .proc
lda #$00
sta _result_maxw
@ -745,7 +745,7 @@ _lesseq dey
rts
_result_maxw .word 0
.pend
func_sum_b .proc
jsr pop_array_and_lengthmin1Y
@ -770,7 +770,7 @@ _loop lda (c64.SCRATCH_ZPWORD1),y
dex
rts
.pend
func_sum_ub .proc
jsr pop_array_and_lengthmin1Y
lda #0
@ -818,7 +818,7 @@ func_sum_w .proc
jmp func_sum_uw
.pend
pop_array_and_lengthmin1Y .proc
inx
ldy c64.ESTACK_LO,x
@ -830,7 +830,7 @@ pop_array_and_lengthmin1Y .proc
inx
rts
.pend
func_min_ub .proc
jsr pop_array_and_lengthmin1Y
lda #255
@ -847,8 +847,8 @@ func_min_ub .proc
dex
rts
.pend
func_min_b .proc
jsr pop_array_and_lengthmin1Y
lda #127
@ -858,7 +858,7 @@ func_min_b .proc
sbc c64.SCRATCH_ZPB1
bvc +
eor #$80
+ bpl +
+ bpl +
lda (c64.SCRATCH_ZPWORD1),y
sta c64.SCRATCH_ZPB1
+ dey
@ -869,7 +869,7 @@ func_min_b .proc
dex
rts
.pend
func_min_uw .proc
lda #$ff
sta _result_minuw
@ -905,7 +905,7 @@ _gtequ dey
rts
_result_minuw .word 0
.pend
func_min_w .proc
lda #$ff
sta _result_minw
@ -942,7 +942,7 @@ _gtequ dey
rts
_result_minw .word 0
.pend
func_len_str .proc
; -- push length of 0-terminated string on stack
@ -956,7 +956,7 @@ func_len_str .proc
sta c64.ESTACK_LO+1,x
rts
.pend
func_len_strp .proc
; -- push length of pascal-string on stack
jsr peek_address
@ -973,7 +973,7 @@ func_rnd .proc
dex
rts
.pend
func_rndw .proc
; -- put a random uword on the estack
jsr math.randword
@ -983,8 +983,8 @@ func_rndw .proc
dex
rts
.pend
func_memcopy .proc ; clobbers A,Y
inx
stx c64.SCRATCH_ZPREGX
@ -1004,7 +1004,7 @@ func_memcopy .proc ; clobbers A,Y
inx
rts
.pend
}}
}
@ -1088,7 +1088,7 @@ mult16 lda #$00
rts
multiply_words_result .byte 0,0,0,0
}}
}
@ -1138,7 +1138,7 @@ result = dividend ;save memory by reusing divident to store the result
ldx #16 ;repeat for each bit: ...
- asl dividend ;dividend lb & hb*2, msb -> Carry
rol dividend+1
rol dividend+1
rol remainder ;remainder lb & hb * 2 + msb from carry
rol remainder+1
lda remainder
@ -1150,23 +1150,23 @@ result = dividend ;save memory by reusing divident to store the result
bcc + ;if carry=0 then divisor didn't fit in yet
sta remainder+1 ;else save substraction result as new remainder,
sty remainder
sty remainder
inc result ;and INCrement result cause divisor fit in 1 times
+ dex
bne -
lda result
ldy result+1
ldx c64.SCRATCH_ZPREGX
rts
_divisor .word 0
_divisor .word 0
}}
}
asmsub randseed (uword seed @ AY) -> clobbers(A, Y) -> () {
; ---- reset the random seeds for the byte and word random generators
; default starting values are: A=$2c Y=$9e
; default starting values are: A=$2c Y=$9e
%asm {{
sta randword._seed
sty randword._seed+1

6
compiler/src/prog8/ast/AstChecker.kt
View File

@ -272,7 +272,8 @@ class AstChecker(private val namespace: INameScope,
err("parameter '${param.first.name}' should be (u)byte")
}
else if(param.second.registerOrPair in setOf(RegisterOrPair.AX, RegisterOrPair.AY, RegisterOrPair.XY)) {
if (param.first.type != DataType.UWORD && param.first.type != DataType.WORD && param.first.type !in StringDatatypes && param.first.type !in ArrayDatatypes)
if (param.first.type != DataType.UWORD && param.first.type != DataType.WORD
&& param.first.type !in StringDatatypes && param.first.type !in ArrayDatatypes && param.first.type != DataType.FLOAT)
err("parameter '${param.first.name}' should be (u)word/address")
}
else if(param.second.statusflag!=null) {
@ -286,7 +287,8 @@ class AstChecker(private val namespace: INameScope,
err("return value #${ret.first.index + 1} should be (u)byte")
}
else if(ret.second.registerOrPair in setOf(RegisterOrPair.AX, RegisterOrPair.AY, RegisterOrPair.XY)) {
if (ret.first.value != DataType.UWORD && ret.first.value != DataType.WORD && ret.first.value !in StringDatatypes && ret.first.value !in ArrayDatatypes)
if (ret.first.value != DataType.UWORD && ret.first.value != DataType.WORD
&& ret.first.value !in StringDatatypes && ret.first.value !in ArrayDatatypes && ret.first.value != DataType.FLOAT)
err("return value #${ret.first.index + 1} should be (u)word/address")
}
else if(ret.second.statusflag!=null) {

25
compiler/src/prog8/compiler/Compiler.kt
View File

@ -967,6 +967,10 @@ private class StatementTranslator(private val prog: IntermediateProgram,
pushStringAddress(arg.first, false) // TODO with or without remove last opcode??
prog.instr(Opcode.POP_REGAX_WORD)
}
DataType.FLOAT -> {
pushFloatAddress(arg.first)
prog.instr(Opcode.POP_REGAX_WORD)
}
else -> TODO("pass parameter of type $paramDt in registers AX at $callPosition")
}
}
@ -993,6 +997,10 @@ private class StatementTranslator(private val prog: IntermediateProgram,
pushStringAddress(arg.first, false) // TODO with or without remove last opcode??
prog.instr(Opcode.POP_REGAY_WORD)
}
DataType.FLOAT -> {
pushFloatAddress(arg.first)
prog.instr(Opcode.POP_REGAY_WORD)
}
else -> TODO("pass parameter of type $paramDt in registers AY at $callPosition")
}
}
@ -1023,6 +1031,10 @@ private class StatementTranslator(private val prog: IntermediateProgram,
pushStringAddress(arg.first, false) // TODO with or without remove last opcode??
prog.instr(Opcode.POP_REGXY_WORD)
}
DataType.FLOAT -> {
pushFloatAddress(arg.first)
prog.instr(Opcode.POP_REGXY_WORD)
}
else -> TODO("pass parameter of type $paramDt in registers XY at $callPosition")
}
}
@ -1485,6 +1497,19 @@ private class StatementTranslator(private val prog: IntermediateProgram,
}
}
private fun pushFloatAddress(value: IExpression) {
when (value) {
is LiteralValue -> {
prog.instr(Opcode.PUSH_ADDR_FLOAT, Value(value.type, value.floatvalue!!))
}
is IdentifierReference -> {
val vardecl = value.targetStatement(namespace) as VarDecl
prog.instr(Opcode.PUSH_ADDR_HEAPVAR, callLabel = vardecl.scopedname)
}
else -> throw CompilerException("literal float value or float variable expected")
}
}
private fun translateMultiReturnAssignment(stmt: Assignment) {
val targetStmt = (stmt.value as? FunctionCall)?.target?.targetStatement(namespace)
if(targetStmt is Subroutine && targetStmt.isAsmSubroutine) {

1
compiler/src/prog8/compiler/intermediate/Opcode.kt
View File

@ -19,6 +19,7 @@ enum class Opcode {
PUSH_REGAY_WORD, // push registers A/Y as a 16-bit word
PUSH_REGXY_WORD, // push registers X/Y as a 16-bit word
PUSH_ADDR_STR, // push the address of the string value (literal)
PUSH_ADDR_FLOAT, // push the address of the float value (literal)
PUSH_ADDR_HEAPVAR, // push the address of the variable that's on the heap (string or array)
// popping values off the (evaluation) stack, possibly storing them in another location

28
compiler/src/prog8/compiler/target/c64/AsmGen.kt
View File

@ -536,6 +536,10 @@ class AsmGen(val options: CompilationOptions, val program: IntermediateProgram,
Opcode.PUSH_ADDR_HEAPVAR -> {
" lda #<${ins.callLabel} | sta ${ESTACK_LO.toHex()},x | lda #>${ins.callLabel} | sta ${ESTACK_HI.toHex()},x | dex"
}
Opcode.PUSH_ADDR_FLOAT -> {
val varname = getFloatConst(ins.arg!!)
" lda #<$varname | sta ${ESTACK_LO.toHex()},x | lda #>$varname | sta ${ESTACK_HI.toHex()},x | dex"
}
Opcode.POP_REGAX_WORD -> throw AssemblyError("cannot load X register from stack because it's used as the stack pointer itself")
Opcode.POP_REGXY_WORD -> throw AssemblyError("cannot load X register from stack because it's used as the stack pointer itself")
Opcode.POP_REGAY_WORD -> {
@ -570,9 +574,9 @@ class AsmGen(val options: CompilationOptions, val program: IntermediateProgram,
Opcode.WRITE_INDEXED_VAR_BYTE -> {
"""
inx
lda ${ESTACK_LO.toHex()},x
inx
ldy ${ESTACK_LO.toHex()},x
inx
lda ${ESTACK_LO.toHex()},x
sta ${ins.callLabel},y
"""
}
@ -701,6 +705,9 @@ class AsmGen(val options: CompilationOptions, val program: IntermediateProgram,
}
Opcode.INC_MEMORY -> " inc ${hexVal(ins)}"
Opcode.DEC_MEMORY -> " dec ${hexVal(ins)}"
Opcode.INC_INDEXED_VAR_B, Opcode.INC_INDEXED_VAR_UB -> " inx | txa | pha | lda ${ESTACK_LO.toHex()},x | tax | inc ${ins.callLabel},x | pla | tax"
Opcode.DEC_INDEXED_VAR_B, Opcode.DEC_INDEXED_VAR_UB -> " inx | txa | pha | lda ${ESTACK_LO.toHex()},x | tax | dec ${ins.callLabel},x | pla | tax"
Opcode.NEG_B -> " jsr prog8_lib.neg_b"
Opcode.NEG_W -> " jsr prog8_lib.neg_w"
Opcode.NEG_F -> " jsr c64flt.neg_f"
@ -1034,10 +1041,10 @@ class AsmGen(val options: CompilationOptions, val program: IntermediateProgram,
Opcode.INC_INDEXED_VAR_B, Opcode.INC_INDEXED_VAR_UB -> AsmFragment(" txa | $loadX inc $variable,x | tax", 10)
Opcode.DEC_INDEXED_VAR_B, Opcode.DEC_INDEXED_VAR_UB -> AsmFragment(" txa | $loadX dec $variable,x | tax", 10)
Opcode.INC_INDEXED_VAR_W -> TODO("inc array_w")
Opcode.INC_INDEXED_VAR_UW -> TODO("inc array_uw")
Opcode.INC_INDEXED_VAR_UW -> AsmFragment("$saveX $loadXWord inc $variable,x | bne + | inc $variable+1,x |+ $restoreX", 10)
Opcode.INC_INDEXED_VAR_FLOAT -> TODO("inc array_f")
Opcode.DEC_INDEXED_VAR_W -> TODO("dec array_w")
Opcode.DEC_INDEXED_VAR_UW -> TODO("dec array_uw")
Opcode.DEC_INDEXED_VAR_UW -> AsmFragment("$saveX $loadXWord lda $variable,x | bne + | dec $variable+1,x |+ | dec $variable,x $restoreX", 10)
Opcode.DEC_INDEXED_VAR_FLOAT -> TODO("dec array_f")
else -> null
@ -2915,6 +2922,19 @@ class AsmGen(val options: CompilationOptions, val program: IntermediateProgram,
AsmPattern(listOf(Opcode.PUSH_ADDR_HEAPVAR, Opcode.POP_REGXY_WORD)) { segment ->
" ldx #<${segment[0].callLabel} | ldy #>${segment[0].callLabel} "
},
// set a register pair to a certain memory address (of a floating point value)
AsmPattern(listOf(Opcode.PUSH_ADDR_FLOAT, Opcode.POP_REGAX_WORD)) { segment ->
val varname=getFloatConst(segment[0].arg!!)
" lda #<$varname | ldx #>$varname "
},
AsmPattern(listOf(Opcode.PUSH_ADDR_FLOAT, Opcode.POP_REGAY_WORD)) { segment ->
val varname=getFloatConst(segment[0].arg!!)
" lda #<$varname | ldy #>$varname "
},
AsmPattern(listOf(Opcode.PUSH_ADDR_FLOAT, Opcode.POP_REGXY_WORD)) { segment ->
val varname=getFloatConst(segment[0].arg!!)
" ldx #<$varname | ldy #>$varname "
},
// set a register pair to a certain memory address (of a literal string value)
AsmPattern(listOf(Opcode.PUSH_ADDR_STR, Opcode.POP_REGAX_WORD)) { segment ->
TODO("$segment")

9
compiler/src/prog8/stackvm/StackVm.kt
View File

@ -1443,13 +1443,18 @@ class StackVm(private var traceOutputFile: String?) {
val heapId = variables[ins.callLabel]!!.heapId
if(heapId<0)
throw VmExecutionException("expected variable on heap")
evalstack.push(Value(DataType.UWORD, heapId)) // push the "address" of the string or array variable
evalstack.push(Value(DataType.UWORD, heapId)) // push the "address" of the string or array variable (this is taken care of properly in the assembly code generator)
}
Opcode.PUSH_ADDR_STR -> {
val heapId = ins.arg!!.heapId
if(heapId<0)
throw VmExecutionException("expected string to be on heap")
evalstack.push(Value(DataType.UWORD, heapId)) // push the "address" of the string
evalstack.push(Value(DataType.UWORD, heapId)) // push the "address" of the string (this is taken care of properly in the assembly code generator)
}
Opcode.PUSH_ADDR_FLOAT -> {
val floatvalue = ins.arg!!
checkDt(floatvalue, DataType.FLOAT)
evalstack.push(Value(DataType.UWORD, floatvalue.numericValue().toInt() and 65535)) // push the "address" of the floating point value (this is taken care of properly in the assembly code generator)
}
Opcode.CAST_UB_TO_B -> typecast(DataType.UBYTE, DataType.BYTE)
Opcode.CAST_W_TO_B -> typecast(DataType.WORD, DataType.BYTE)

23
examples/sprites.p8
View File

@ -39,19 +39,10 @@
c64.STROUT("balloon sprites!\n")
c64.STROUT("...we are all floating...\n")
const uword sprite_address_ptr = $0a00 // 64
c64.SPRPTR0 = sprite_address_ptr
c64.SPRPTR1 = sprite_address_ptr
c64.SPRPTR2 = sprite_address_ptr
c64.SPRPTR3 = sprite_address_ptr
c64.SPRPTR4 = sprite_address_ptr
c64.SPRPTR5 = sprite_address_ptr
c64.SPRPTR6 = sprite_address_ptr
c64.SPRPTR7 = sprite_address_ptr
for ubyte i in 0 to 7 {
@(SP0X+i*2) = 50+25*i
@(SP0Y+i*2) = rnd()
c64.SPRPTR[i] = $0a00 // 64
c64.SPXY[i*2] = 50+25*i
c64.SPXY[i*2+1] = rnd()
}
c64.SPENA = 255 ; enable all sprites
@ -63,15 +54,17 @@
~ irq {
sub irq() {
c64.EXTCOL--
; float up & wobble horizontally
for ubyte i in 0 to 14 step 2 {
@(main.SP0Y+i)--
c64.SPXY[i+1]--
ubyte r = rnd()
if r>200
@(main.SP0X+i)++
c64.SPXY[i]++
else if r<40
@(main.SP0X+i)--
c64.SPXY[i]--
}
c64.EXTCOL++
}

60
examples/test.p8
View File

@ -1,60 +1,20 @@
%import c64utils
%import c64flt
~ main {
sub start() {
ubyte ub=20
ubyte ub2
byte b =-10
byte b2
uword uw = 2000
uword uw2
word w = -222
word w2
; @todo create word function ;c64.SPXY[i] = (rnd() as uword) * 256 + (50+25*i)
; @todo more efficient +1/-1 additions in expressions
A>>=1
A>>=3
A<<=1
A<<=3
lsr(A)
lsl(A)
float f1 = c64flt.TWOPI
ub2 = ub>>1
ub2 = ub>>2
ub2 = ub<<1
ub2 = ub<<2
b2 = b>>1
b2 = b>>2
b2 = b<<1
b2 = b<<2
uw2 = uw>>1
uw2 = uw>>2
uw2 = uw<<1
uw2 = uw<<2
w2 = w>>1
w2 = w>>2
w2 = w<<1
w2 = w<<2
lsr(ub)
lsr(b)
lsr(uw)
lsr(w)
lsl(ub)
lsl(b)
lsl(uw)
lsl(w)
rol(ub)
rol(uw)
rol2(ub)
rol2(uw)
ror(ub)
ror(uw)
ror2(ub)
ror2(uw)
;c64scr.print_ub(X)
;c64.CHROUT('\n')
c64flt.print_fln(3.1415)
c64flt.print_fln(f1)
f1 = 3.1415
f1 = 3.1415
f1 = 3.1415
f1 = 3.1415
}
}

23
examples/wizzine.p8
View File

@ -33,16 +33,9 @@
sub start() {
const uword sprite_address_ptr = $0a00 // 64
c64.SPRPTR0 = sprite_address_ptr
c64.SPRPTR1 = sprite_address_ptr
c64.SPRPTR2 = sprite_address_ptr
c64.SPRPTR3 = sprite_address_ptr
c64.SPRPTR4 = sprite_address_ptr
c64.SPRPTR5 = sprite_address_ptr
c64.SPRPTR6 = sprite_address_ptr
c64.SPRPTR7 = sprite_address_ptr
for ubyte i in 0 to 7 {
c64.SPRPTR[i] = $0a00//64
}
c64.SPENA = 255 ; enable all sprites
c64utils.set_rasterirq(260) ; enable animation
}
@ -54,21 +47,17 @@
ubyte angle=0
sub irq() {
const uword SP0X = $d000
const uword SP0Y = $d001
c64.EXTCOL--
angle++
c64.MSIGX=0
ubyte i=14
ubyte i=14
nextsprite: ; @todo should be a for loop from 14 to 0 step -2 but this causes a value out of range error at the moment
uword x = sin8u(angle*2-i*8) as uword + 50
ubyte y = cos8u(angle*3-i*8) // 2 + 70
@(SP0X+i) = lsb(x)
@(SP0Y+i) = y
c64.SPXY[i] = lsb(x)
c64.SPXY[i+1] = y
lsl(c64.MSIGX)
if msb(x) c64.MSIGX++
i-=2