From: Tobias Girstmair <tobi@isticktoit.net>
Date: Thu, 4 Mar 2021 01:14:32 +0000 (+0100)
Subject: new version
X-Git-Url: https://git.gir.st/Chiptunes-pms150c.git/commitdiff_plain/42c6050e0f7f814e8bdfac29bd58f1de71c00b75?ds=sidebyside

new version
---

diff --git a/bsv.c b/bsv.c
index 9a3c608..715cdd5 100644
--- a/bsv.c
+++ b/bsv.c
@@ -83,8 +83,8 @@ void main(void){
 
 		putchar(sample<<4);
 
-		i0++;
-		i1 += !i0;
-		i2 += !i1 && !i0;
+		INC	(i0)
+		i1 += !i0; // ADDC i1
+		i2 += !i1 && !i0; // ADDC i2
 	}
 }
diff --git a/fakeasm.h b/fakeasm.h
index 946be8a..a42a373 100644
--- a/fakeasm.h
+++ b/fakeasm.h
@@ -1,8 +1,13 @@
+int flag_z = 0;
+int flag_c = 0;
+//ignoring flag_ov, flag_ac
 #define MOV(dst, src)	dst = src;
-#define SL(dst)		dst <<= 1;
-#define SR(dst)		dst >>= 1;
-#define SWAP(dst)	dst = (dst<<4 | dst>>4); //XXX: only for ACC!
-#define AND(dst, src)	dst &= src;  //xxx: overloaded for acc/mem/imm
-#define OR(dst, src)	dst |= src;
+#define SL(dst)		flag_c = (dst&0x80); dst <<= 1;
+#define SR(dst)		flag_c = (dst&0x01); dst >>= 1;
+#define SWAP(dst)	dst = (dst<<4 | dst>>4);
+#define AND(dst, src)	dst &= src; flag_z = (dst==0);
+#define OR(dst, src)	dst |= src; flag_z = (dst==0);
 #define CLEAR(dst)	dst = 0;
-#define ADD(dst, src)	dst += src; //xxx: overloaded for acc/mem/imm
+#define ADD(dst, src)	dst += src; flag_c = (src+dst>0xff); flag_z = (dst==0);
+#define INC(dst)	dst += 1; flag_c = flag_z = (dst==0);
+#define ADDC0(dst)	dst += flag_c; flag_c = flag_z = (dst==0);