X-Git-Url: https://git.gir.st/Chiptunes.git/blobdiff_plain/f84bcb7fdf130aa4d7f04a449d2923c520aebc15..7b96a97d74795acb20cac1df4a5aaebbe8027419:/fakeasm.h

diff --git a/fakeasm.h b/fakeasm.h
index 3153640..de0898f 100644
--- a/fakeasm.h
+++ b/fakeasm.h
@@ -17,15 +17,20 @@
 #define INC(x)    x++; //WARN: does not set carry
 #define MOV(x,y)  x = y;
 #define LDI(x,n)  x = n;
-#define SBRC(x,b) if (x & b) //skip if cleared => do if set
+#define SBRC(x,b) if (x & 1<<b) //skip if cleared => do if set
+#define SBRS(x,b) if (!(x & 1<<b)) //skip if set => do if not
 #define CLR(x)    x = 0;
 #define RET       return;
 #define RCALL	  //pseudo
-int zero = 0; //status register zero bit
-#define TST(x)    if(x==0)zero=1;else zero=0; //WARN: not a complete TST mockup
-#define BREQ(l)   if(zero) goto l;
+int sr_zero = 0; //status register zero bit
+#define TST(x)    if(x==0)sr_zero=1;else sr_zero=0; //WARN: not a complete TST mockup
+#define BREQ(l)   if(sr_zero) goto l;
 int carry = 0; //status register carry bit //WARN: not respected by all mocked instructions
 int asmtmp = 0;
 #define ROL(x)	asmtmp = x>>7; x <<= 1; x |= carry; carry = asmtmp;
 #define ROR(x)	asmtmp = x&0x1; x >>= 1; x |= carry<<7; carry = asmtmp;
 #define NEG(x)	x *= -1;
+int sr_neg = 0;
+#define CPI(x,n)  sr_neg = (x-n < 0); //WARN: not a complete CPI mockup
+#define BRPL(l)   if (sr_neg) goto l;
+#define RJMP(l)   goto l;