X-Git-Url: https://git.gir.st/Chiptunes.git/blobdiff_plain/7b96a97d74795acb20cac1df4a5aaebbe8027419..44e34da036f83d3efd6384cdc37ec9bd3e234e3a:/fakeasm.h

diff --git a/fakeasm.h b/fakeasm.h
index de0898f..e548517 100644
--- a/fakeasm.h
+++ b/fakeasm.h
@@ -15,6 +15,7 @@
 #define SUB(x,y)  x -= y; //TODO: carry
 #define SUBI(x,n) x -= (u8)n; //TODO: carry
 #define INC(x)    x++; //WARN: does not set carry
+#define DEC(x)    x--; sr_zero=!x;
 #define MOV(x,y)  x = y;
 #define LDI(x,n)  x = n;
 #define SBRC(x,b) if (x & 1<<b) //skip if cleared => do if set
@@ -25,12 +26,13 @@
 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;
+#define BRNE(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 CPI(x,n)  sr_neg = (x-n < 0);sr_zero = (x-n == 0); //WARN: not a complete CPI mockup
 #define BRPL(l)   if (sr_neg) goto l;
 #define RJMP(l)   goto l;