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tweaks to c64 txtio. Fixed expression evaluation of bitwise invert.

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This commit is contained in:
Irmen de Jong 2020-09-19 22:37:24 +02:00
parent 0f7454059c
commit 2deb18beb2
9 changed files with 76 additions and 40 deletions
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8
compiler/res/prog8lib/c64textio.p8
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@ -68,6 +68,14 @@ sub color (ubyte txtcol) {
c64.COLOR = txtcol
}
sub lowercase() {
c64.VMCSB |= 2
}
sub uppercase() {
c64.VMCSB &= ~2
}
asmsub scroll_left_full (ubyte alsocolors @ Pc) clobbers(A, Y) {
; ---- scroll the whole screen 1 character to the left
; contents of the rightmost column are unchanged, you should clear/refill this yourself

7
compiler/res/prog8lib/cx16lib.p8
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@ -259,9 +259,14 @@ asmsub init_system() {
jsr c64.IOINIT
jsr c64.RESTOR
jsr c64.CINT
lda #$90 ; black
jsr c64.CHROUT
lda #1 ; swap fg/bg
jsr c64.CHROUT
lda #$9e ; yellow
jsr c64.CHROUT
; TODO select black background color
lda #147 ; clear screen
jsr c64.CHROUT
lda #0
tax
tay

9
compiler/res/prog8lib/cx16textio.p8
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@ -83,7 +83,6 @@ asmsub clear_screenchars (ubyte char @ A) clobbers(Y) {
}}
}
ubyte[16] color_to_charcode = [$90,$05,$1c,$9f,$9c,$1e,$1f,$9e,$81,$95,$96,$97,$98,$99,$9a,$9b]
sub color (ubyte txtcol) {
@ -96,6 +95,14 @@ sub color2 (ubyte txtcol, ubyte bgcol) {
c64.CHROUT(color_to_charcode[txtcol & 15])
}
sub lowercase() {
cx16.screen_set_charset(3, 0) ; lowercase charset
}
sub uppercase() {
cx16.screen_set_charset(2, 0) ; uppercase charset
}
romsub $FFD2 = chrout(ubyte char @ A) ; for consistency. You can also use c64.CHROUT directly ofcourse.
asmsub print (str text @ AY) clobbers(A,Y) {

19
compiler/src/prog8/optimizer/ConstantFoldingOptimizer.kt
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@ -216,9 +216,24 @@ internal class ConstantFoldingOptimizer(private val program: Program) : AstWalke
else -> throw ExpressionError("can only take negative of int or float", subexpr.position)
}
"~" -> when (subexpr.type) {
in IntegerDatatypes -> {
DataType.BYTE -> {
listOf(IAstModification.ReplaceNode(expr,
NumericLiteralValue.optimalInteger(subexpr.number.toInt().inv(), subexpr.position),
NumericLiteralValue(DataType.BYTE, subexpr.number.toInt().inv(), subexpr.position),
parent))
}
DataType.UBYTE -> {
listOf(IAstModification.ReplaceNode(expr,
NumericLiteralValue(DataType.UBYTE, subexpr.number.toInt().inv() and 255, subexpr.position),
parent))
}
DataType.WORD -> {
listOf(IAstModification.ReplaceNode(expr,
NumericLiteralValue(DataType.WORD, subexpr.number.toInt().inv(), subexpr.position),
parent))
}
DataType.UWORD -> {
listOf(IAstModification.ReplaceNode(expr,
NumericLiteralValue(DataType.UWORD, subexpr.number.toInt().inv() and 65535, subexpr.position),
parent))
}
else -> throw ExpressionError("can only take bitwise inversion of int", subexpr.position)

2
examples/cx16/datetime.p8
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@ -14,7 +14,7 @@ main {
cx16.r2 = mkword(0, 16)
cx16.r3 = 0
cx16.clock_set_date_time()
cx16.screen_set_charset(3, 0) ; lowercase charset
txt.lowercase()
repeat {
c64.CHROUT(19) ; HOME

4
examples/hello.p8
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@ -8,9 +8,7 @@ main {
sub start() {
; set text color and activate lowercase charset
txt.color(13)
c64.VMCSB |= 2
txt.lowercase()
; use optimized routine to write text
txt.print("Hello!\n")

2
examples/numbergame.p8
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@ -13,7 +13,7 @@ main {
ubyte secretnumber = rnd() % 99 + 1 ; random number 1..100
ubyte attempts_left
c64.VMCSB |= 2 ; switch lowercase chars
txt.lowercase()
txt.print("Please introduce yourself: ")
void txt.input_chars(name)
txt.print("\n\nHello, ")

2
examples/screencodes.p8
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@ -7,7 +7,7 @@ main {
sub start() {
c64.VMCSB |= 2 ; switch to lowercase charset
txt.lowercase()
str s1 = "HELLO hello 1234 @[/]" ; regular strings have default encoding (petscii on c64)
str s2 = @"HELLO hello 1234 @[/]" ; alternative encoding (screencodes on c64)

63
examples/test.p8
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@ -1,10 +1,10 @@
;%import c64lib
;%import c64graphics
%import c64textio
; %import c64textio
;%import c64flt
;%option enable_floats
;%target cx16
;%import cx16textio
%target cx16
%import cx16textio
%zeropage basicsafe
@ -12,41 +12,44 @@ main {
sub start() {
txt.lowercase()
txt.print("Hello there")
txt.setchr(5, 5, '*')
txt.setchr(6, 5, '*')
txt.setchr(7, 5, '*')
txt.setchr(7, 6, '+')
txt.setchr(7, 7, '+')
txt.setclr(5, 5, 1)
txt.setclr(6, 5, 2)
txt.setclr(7, 5, 3)
txt.setclr(7, 6, 4)
txt.setclr(7, 7, 5)
; txt.setclr(5, 5, 1)
; txt.setclr(6, 5, 2)
; txt.setclr(7, 5, 3)
; txt.setclr(7, 6, 4)
; txt.setclr(7, 7, 5)
;
txt.plot(15,10)
txt.chrout('!')
txt.print_ub(txt.getchr(4,5))
txt.chrout(',')
txt.print_ub(txt.getchr(5,5))
txt.chrout(',')
txt.print_ub(txt.getchr(6,5))
txt.chrout(',')
txt.print_ub(txt.getchr(7,5))
txt.chrout(',')
txt.print_ub(txt.getchr(8,5))
txt.chrout('\n')
txt.print_ub(txt.getclr(4,5))
txt.chrout(',')
txt.print_ub(txt.getclr(5,5))
txt.chrout(',')
txt.print_ub(txt.getclr(6,5))
txt.chrout(',')
txt.print_ub(txt.getclr(7,5))
txt.chrout(',')
txt.print_ub(txt.getclr(8,5))
txt.chrout('\n')
;
; txt.print_ub(txt.getchr(4,5))
; txt.chrout(',')
; txt.print_ub(txt.getchr(5,5))
; txt.chrout(',')
; txt.print_ub(txt.getchr(6,5))
; txt.chrout(',')
; txt.print_ub(txt.getchr(7,5))
; txt.chrout(',')
; txt.print_ub(txt.getchr(8,5))
; txt.chrout('\n')
; txt.print_ub(txt.getclr(4,5))
; txt.chrout(',')
; txt.print_ub(txt.getclr(5,5))
; txt.chrout(',')
; txt.print_ub(txt.getclr(6,5))
; txt.chrout(',')
; txt.print_ub(txt.getclr(7,5))
; txt.chrout(',')
; txt.print_ub(txt.getclr(8,5))
; txt.chrout('\n')
}
}