Added working lazynes scroll.c

src/main/fragment/cache/fragment-cache-mos6502.asm

@@ -1,4 +1,4 @@
-//KICKC FRAGMENT CACHE 160b017651
+//KICKC FRAGMENT CACHE 160b015f22
 //FRAGMENT vbuz1=vbuc1
 lda #{c1}
 sta {z1}

src/main/fragment/cache/fragment-cache-mos6502x.asm

@@ -1,9 +1,34 @@
-//KICKC FRAGMENT CACHE 160b017651
-//FRAGMENT _deref_pbuc1=_inc__deref_pbuc1
-inc {c1}
+//KICKC FRAGMENT CACHE 160b015f22
 //FRAGMENT vbuz1=vbuc1
 lda #{c1}
 sta {z1}
+//FRAGMENT pbuc1_derefidx_vbuz1=_inc_pbuc1_derefidx_vbuz1
+ldx {z1}
+inc {c1},x
+//FRAGMENT vbuz1=_inc_vbuz1
+inc {z1}
+//FRAGMENT pbuc1_derefidx_vbuaa=_inc_pbuc1_derefidx_vbuaa
+tax
+inc {c1},x
+//FRAGMENT pbuc1_derefidx_vbuxx=_inc_pbuc1_derefidx_vbuxx
+inc {c1},x
+//FRAGMENT vbuaa=vbuc1
+lda #{c1}
+//FRAGMENT vbuaa=_inc_vbuaa
+clc
+adc #1
+//FRAGMENT vbuxx=vbuc1
+ldx #{c1}
+//FRAGMENT vbuxx=_inc_vbuxx
+inx
+//FRAGMENT vbuyy=vbuc1
+ldy #{c1}
+//FRAGMENT pbuc1_derefidx_vbuyy=_inc_pbuc1_derefidx_vbuyy
+tya
+tax
+inc {c1},x
+//FRAGMENT vbuyy=_inc_vbuyy
+iny
 //FRAGMENT pbuz1=pbuc1
 lda #<{c1}
 sta {z1}
@@ -45,8 +70,6 @@ lda {z2}
 sta {z1}
 lda {z2}+1
 sta {z1}+1
-//FRAGMENT vbuz1=_inc_vbuz1
-inc {z1}
 //FRAGMENT vbuz1_neq_vbuc1_then_la1
 lda #{c1}
 cmp {z1}
@@ -255,12 +278,6 @@ tay
 txa
 and #{c1}
 tay
-//FRAGMENT vbuaa=vbuc1
-lda #{c1}
-//FRAGMENT vbuxx=vbuc1
-ldx #{c1}
-//FRAGMENT vbuyy=vbuc1
-ldy #{c1}
 //FRAGMENT vbuaa=pbuc1_derefidx_vbuxx
 lda {c1},x
 //FRAGMENT vbuaa=pbuc1_derefidx_vbuyy
@@ -1280,10 +1297,6 @@ ldy {z1}+1
 //FRAGMENT vbuyy=vbuaa_band_vbuc1
 and #{c1}
 tay
-//FRAGMENT vbuxx=_inc_vbuxx
-inx
-//FRAGMENT vbuyy=_inc_vbuyy
-iny
 //FRAGMENT vbuyy_neq_vbuc1_then_la1
 cpy #{c1}
 bne {la1}
@@ -1601,9 +1614,6 @@ sta {c1},x
 //FRAGMENT vbuaa_neq_vbuc1_then_la1
 cmp #{c1}
 bne {la1}
-//FRAGMENT vbuaa=_inc_vbuaa
-clc
-adc #1
 //FRAGMENT _deref_pbuc1=_deref_pbuc1_bor_vbuc2
 lda #{c2}
 ora {c1}
@@ -1613,6 +1623,8 @@ lda #<{c2}
 sta {c1}
 lda #>{c2}
 sta {c1}+1
+//FRAGMENT _deref_pbuc1=_inc__deref_pbuc1
+inc {c1}
 //FRAGMENT _deref_pbuc1_lt_vbuc2_then_la1
 lda {c1}
 cmp #{c2}
@@ -8006,9 +8018,6 @@ ldy {z1}
 lda {c1},y
 cmp #{c2}
 beq {la1}
-//FRAGMENT pbuc1_derefidx_vbuz1=_inc_pbuc1_derefidx_vbuz1
-ldx {z1}
-inc {c1},x
 //FRAGMENT pbuc1_derefidx_vbuaa_eq_vbuc2_then_la1
 tay
 lda {c1},y
@@ -8022,12 +8031,6 @@ beq {la1}
 lda {c1},y
 cmp #{c2}
 beq {la1}
-//FRAGMENT pbuc1_derefidx_vbuxx=_inc_pbuc1_derefidx_vbuxx
-inc {c1},x
-//FRAGMENT pbuc1_derefidx_vbuyy=_inc_pbuc1_derefidx_vbuyy
-tya
-tax
-inc {c1},x
 //FRAGMENT vduz1=vduc1_plus_vbuz2
 lda {z2}
 clc
@@ -13791,9 +13794,6 @@ lda {z1}
 sta {c1}
 lda {z1}+1
 sta {c1}+1
-//FRAGMENT pbuc1_derefidx_vbuaa=_inc_pbuc1_derefidx_vbuaa
-tax
-inc {c1},x
 //FRAGMENT vbuaa=vbuaa_bor_vbuc1
 ora #{c1}
 //FRAGMENT vbuz1=_deref_pbuz2_rol_1

src/main/fragment/mos6502-common/vwum1=vwum1_plus_vbsaa.asm

@@ -0,0 +1,13 @@
+sta $fe
+ora #$7f
+bmi !+
+lda #0
+!:
+sta $ff
+clc
+lda {m1}
+adc $fe
+sta {m1}
+lda {m1}+1
+adc $ff
+sta {m1}+1

src/main/java/dk/camelot64/kickc/parser/KickCLexer.java

@@ -1,4 +1,4 @@
-// Generated from C:/c64/kickc/src/main/java/dk/camelot64/kickc/parser\KickCLexer.g4 by ANTLR 4.7.2
+// Generated from /Users/jespergravgaard/c64/kickc/src/main/java/dk/camelot64/kickc/parser/KickCLexer.g4 by ANTLR 4.8
 package dk.camelot64.kickc.parser;
 
 
@@ -13,7 +13,7 @@ import org.antlr.v4.runtime.misc.*;
 
 @SuppressWarnings({"all", "warnings", "unchecked", "unused", "cast"})
 public class KickCLexer extends Lexer {
-	static { RuntimeMetaData.checkVersion("4.7.2", RuntimeMetaData.VERSION); }
+	static { RuntimeMetaData.checkVersion("4.8", RuntimeMetaData.VERSION); }
 
 	protected static final DFA[] _decisionToDFA;
 	protected static final PredictionContextCache _sharedContextCache =

src/main/java/dk/camelot64/kickc/parser/KickCParser.java

@@ -1,4 +1,4 @@
-// Generated from C:/c64/kickc/src/main/java/dk/camelot64/kickc/parser\KickCParser.g4 by ANTLR 4.7.2
+// Generated from /Users/jespergravgaard/c64/kickc/src/main/java/dk/camelot64/kickc/parser/KickCParser.g4 by ANTLR 4.8
 package dk.camelot64.kickc.parser;
 
 
@@ -13,7 +13,7 @@ import java.util.ArrayList;
 
 @SuppressWarnings({"all", "warnings", "unchecked", "unused", "cast"})
 public class KickCParser extends Parser {
-	static { RuntimeMetaData.checkVersion("4.7.2", RuntimeMetaData.VERSION); }
+	static { RuntimeMetaData.checkVersion("4.8", RuntimeMetaData.VERSION); }
 
 	protected static final DFA[] _decisionToDFA;
 	protected static final PredictionContextCache _sharedContextCache =

src/main/java/dk/camelot64/kickc/parser/KickCParserBaseListener.java

@@ -1,4 +1,4 @@
-// Generated from C:/c64/kickc/src/main/java/dk/camelot64/kickc/parser\KickCParser.g4 by ANTLR 4.7.2
+// Generated from /Users/jespergravgaard/c64/kickc/src/main/java/dk/camelot64/kickc/parser/KickCParser.g4 by ANTLR 4.8
 package dk.camelot64.kickc.parser;
 
 

src/main/java/dk/camelot64/kickc/parser/KickCParserBaseVisitor.java

@@ -1,4 +1,4 @@
-// Generated from C:/c64/kickc/src/main/java/dk/camelot64/kickc/parser\KickCParser.g4 by ANTLR 4.7.2
+// Generated from /Users/jespergravgaard/c64/kickc/src/main/java/dk/camelot64/kickc/parser/KickCParser.g4 by ANTLR 4.8
 package dk.camelot64.kickc.parser;
 
 

src/main/java/dk/camelot64/kickc/parser/KickCParserListener.java

@@ -1,4 +1,4 @@
-// Generated from C:/c64/kickc/src/main/java/dk/camelot64/kickc/parser\KickCParser.g4 by ANTLR 4.7.2
+// Generated from /Users/jespergravgaard/c64/kickc/src/main/java/dk/camelot64/kickc/parser/KickCParser.g4 by ANTLR 4.8
 package dk.camelot64.kickc.parser;
 
 

src/main/java/dk/camelot64/kickc/parser/KickCParserVisitor.java

@@ -1,4 +1,4 @@
-// Generated from C:/c64/kickc/src/main/java/dk/camelot64/kickc/parser\KickCParser.g4 by ANTLR 4.7.2
+// Generated from /Users/jespergravgaard/c64/kickc/src/main/java/dk/camelot64/kickc/parser/KickCParser.g4 by ANTLR 4.8
 package dk.camelot64.kickc.parser;
 
 

src/test/kc/complex/lazynes/lazynes.c

@@ -41,6 +41,8 @@ void main() {
     PPU->PPUCTRL = 0b10001000;
     // Enable sprite and tile rendering
     PPU->PPUMASK = 0b00011110; 
+    // Reset scroll
+    scroll_x = scroll_y = 0;
     // Execute lazynes main code
     lnMain();
     // Infinite loop
@@ -69,13 +71,18 @@ volatile char sync_mode;
 // Signal when vblank occurs. The NMI sets this to zero. To wait for a vblank set this no non-zero and wait for it to become zero.
 volatile char vblank_signal;
 
+// Scroll x-position
+volatile char scroll_x;
+// Scroll y-position
+volatile char scroll_y;
+
 // NMI Called when the PPU refreshes the screen (also known as the V-Blank period)
 interrupt(hardware_stack) void vblank() {
     // DMA transfer the entire sprite buffer to the PPU
     ppuSpriteBufferDmaTransfer(SPRITE_BUFFER);
     // Set scroll
-    PPU->PPUSCROLL = 0;
-    PPU->PPUSCROLL = 0;
+    PPU->PPUSCROLL = scroll_x;
+    PPU->PPUSCROLL = scroll_y;
     // count vblanks
     vblank_count++;
     // send vblank signal
@@ -163,13 +170,14 @@ void lnPush(uword o, ubyte a, void* s) {
   // x: New horizotnal scrolling offset in pixels, allowed range: [0..511]
  //  y: New vertical scrolling offset in pixels, allowed range: [0..479]
 //
-// TODO: void lnScroll(uword x, uword y);
-	//
 // remarks:
 // - If a SPR0HIT based splitscreen is used, the 1st call of lnScroll() sets
 //   the scrolling offsets of the area above the split and the 2nd call of
 //   lnScroll() sets the scrolling offsets of the area below the split.
-
+void lnScroll(uword x, uword y) {
+    scroll_x = <x;
+    scroll_y = <y;
+}
 
     // Add meta-sprite to display list
    //    p: Pointer to metasprite data

src/test/kc/complex/lazynes/lazynes.h

@@ -55,24 +55,20 @@ enum { lfHor=64, lfVer=128, lfEnd=255 };
 
 
         // Common offsets for lnPush() and lnList()
-enum {
-	lnNameTab0=0x2000, lnNameTab1=0x2400, lnNameTab2=0x2800, lnNameTab3=0x2C00,
+	const uword lnNameTab0=0x2000, lnNameTab1=0x2400, lnNameTab2=0x2800, lnNameTab3=0x2C00,
 	lnAttrTab0=0x23C0, lnAttrTab1=0x27C0, lnAttrTab2=0x2BC0, lnAttrTab3=0x2FC0,
 	 lnBackCol=0x3F00,
 	 lnChrPal0=0x3F01,  lnChrPal1=0x3F05,  lnChrPal2=0x3F09,  lnChrPal3=0x3F0D,
-	 lnSprPal0=0x3F11,  lnSprPal1=0x3F15,  lnSprPal2=0x3F19,  lnSprPal3=0x3F1D
-};
+	 lnSprPal0=0x3F11,  lnSprPal1=0x3F15,  lnSprPal2=0x3F19,  lnSprPal3=0x3F1D;
 
    // Scroll background
   // x: New horizotnal scrolling offset in pixels, allowed range: [0..511]
  //  y: New vertical scrolling offset in pixels, allowed range: [0..479]
-//
-// TODO: void lnScroll(uword x, uword y);
-	//
 // remarks:
 // - If a SPR0HIT based splitscreen is used, the 1st call of lnScroll() sets
 //   the scrolling offsets of the area above the split and the 2nd call of
 //   lnScroll() sets the scrolling offsets of the area below the split.
+void lnScroll(uword x, uword y);
 
     // Add meta-sprite to display list
    //    p: Pointer to metasprite data

src/test/kc/complex/lazynes/scroll.c

@@ -0,0 +1,46 @@
+// lazyNES scroll demo
+  // lazyNES - As lazy as possible NES hardware support library for vbcc6502
+ // (happily cooperates with Shiru's famitone2 replay code)
+// V1.0, 'Lazycow 2020
+
+// Ported to KickC 2020 by Jesper Gravgaard 
+// Original Source VBCC alpha 2 http://www.ibaug.de/vbcc/vbcc6502_2.zip
+
+#pragma target(nes)
+#include "lazynes.h"
+
+int lnMain() {
+
+	static const ubyte bgColors[]={45,33,2};
+	static const ubyte bubblesPal[]={ 0, 37,22,5, 0, 42,26,10, 0, 33,18,3 };
+
+	ubyte i;
+	uword hScroll=0;
+	sbyte hVel=0, hDir=1;
+
+	lnSync(lfBlank); // blank screen to enable lnPush() usage
+	lnPush(lnBackCol,3,bgColors); // set background colors
+	
+	   // draw some backgrounds
+	{ //
+		static const ubyte g1[]={1}, g2[]={2,3,4,5}, g3[]={6,7,8,9};
+		ubyte x;
+		// draw a line: Sprite #0 will be placed ontop later to trigger the split
+		i=2;  for (x=0;x<32;x+=1) lnPush(lnNameTab0+((uword)i<<5)+x,1,g1);
+		// draw some diamond shapes
+		for (i=8;i<=24;i+=4) for (x=0;x<4;x+=1) {
+			lnPush(lnNameTab0+((uword)i<<5)+12+x*4,4,g2);
+			lnPush(lnNameTab0+32+((uword)i<<5)+12+x*4,4,g3);
+		}
+	}
+	lnSync(0); 
+
+	for(;;) {
+		lnScroll(hScroll>>6,0); // set scrolling offsets of area below split
+		hVel+=hDir;  if (hVel>64 || hVel<-64) hDir=-hDir;
+		hScroll+=hVel;
+		lnSync(0); 
+	}
+
+	return 0;
+}