new version

diff --git a/fakeasm.h b/fakeasm.h
index 0e318596f65aaf02143e2705b79ea14f881b70fd..e5485170173923c6bce356ee3c9c7e7e57d72afc 100644 (file)
--- a/fakeasm.h
+++ b/fakeasm.h
@@ -33,6 +33,6 @@ int asmtmp = 0;
 #define ROR(x) asmtmp = x&0x1; x >>= 1; x |= carry<<7; carry = asmtmp;
 #define NEG(x) x *= -1;
 int sr_neg = 0;
 #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;
 #define BRPL(l)   if (sr_neg) goto l;
 #define RJMP(l)   goto l;

diff --git a/foo.c b/foo.c
index d544e10fbf46479c2178f6d51caf8a1815678836..c2bcb5d6c2d96651063ce533aae9b7c1f8f3ae57 100644 (file)
--- a/foo.c
+++ b/foo.c
@@ -64,8 +64,21 @@ void mul(void) { //don't need overhead of function (inline it)
        CLR     (a2)
        CLR     (a1)
 
        CLR     (a2)
        CLR     (a1)
 

-       switch(t) {
-       case 0x58: // 0101 1000
+       CPI     (t, 0x58)
+       BREQ    (mul_58)
+       CPI     (t, 0x69)
+       BREQ    (mul_69)
+       CPI     (t, 0x75)
+       BREQ    (mul_75)
+       CPI     (t, 0x84)
+       BREQ    (mul_84)
+       CPI     (t, 0x8c)
+       BREQ    (mul_8c)
+       CPI     (t, 0x9d)
+       BREQ    (mul_9d)
+       CPI     (t, 0xb0)
+       BREQ    (mul_b0)
+       mul_58: // 0101 1000

                LSR (a2)
                ROR (a1)
                LSR (a2)
                LSR (a2)
                ROR (a1)
                LSR (a2)


@@ -89,8 +102,8 @@ void mul(void) { //don't need overhead of function (inline it)
                ROR (a1)
                LSR (a2)
                ROR (a1)
                ROR (a1)
                LSR (a2)
                ROR (a1)

-               break;
-       case 0x69: // 0110 1001
+               RJMP    (endmul)
+       mul_69: // 0110 1001

                ADD (a1, i0)
                ADC (a2, i1, carry)
                LSR (a2)
                ADD (a1, i0)
                ADC (a2, i1, carry)
                LSR (a2)


@@ -116,8 +129,8 @@ void mul(void) { //don't need overhead of function (inline it)
                ROR (a1)
                LSR (a2)
                ROR (a1)
                ROR (a1)
                LSR (a2)
                ROR (a1)

-               break;
-       case 0x75: // 0111 0101
+               RJMP    (endmul)
+       mul_75: // 0111 0101

                ADD (a1, i0)
                ADC (a2, i1, carry)
                LSR (a2)
                ADD (a1, i0)
                ADC (a2, i1, carry)
                LSR (a2)


@@ -145,8 +158,8 @@ void mul(void) { //don't need overhead of function (inline it)
                ROR (a1)
                LSR (a2)
                ROR (a1)
                ROR (a1)
                LSR (a2)
                ROR (a1)

-               break;
-       case 0x84: // 1000 0100
+               RJMP    (endmul)
+       mul_84: // 1000 0100

                LSR (a2)
                ROR (a1)
                LSR (a2)
                LSR (a2)
                ROR (a1)
                LSR (a2)


@@ -168,8 +181,8 @@ void mul(void) { //don't need overhead of function (inline it)
                ADC (a2, i1, carry)
                LSR (a2)
                ROR (a1)
                ADC (a2, i1, carry)
                LSR (a2)
                ROR (a1)

-               break;
-       case 0x8c: // 1000 1100
+               RJMP    (endmul)
+       mul_8c: // 1000 1100

                LSR (a2)
                ROR (a1)
                LSR (a2)
                LSR (a2)
                ROR (a1)
                LSR (a2)


@@ -193,8 +206,8 @@ void mul(void) { //don't need overhead of function (inline it)
                ADC (a2, i1, carry)
                LSR (a2)
                ROR (a1)
                ADC (a2, i1, carry)
                LSR (a2)
                ROR (a1)

-               break;
-       case 0x9d: // 1001 1101
+               RJMP    (endmul)
+       mul_9d: // 1001 1101

                ADD (a1, i0)
                ADC (a2, i1, carry)
                LSR (a2)
                ADD (a1, i0)
                ADC (a2, i1, carry)
                LSR (a2)


@@ -222,8 +235,8 @@ void mul(void) { //don't need overhead of function (inline it)
                ADC (a2, i1, carry)
                LSR (a2)
                ROR (a1)
                ADC (a2, i1, carry)
                LSR (a2)
                ROR (a1)

-               break;
-       case 0xb0: // 1011 0000
+               RJMP    (endmul)
+       mul_b0: // 1011 0000

                LSR (a2)
                ROR (a1)
                LSR (a2)
                LSR (a2)
                ROR (a1)
                LSR (a2)


@@ -247,7 +260,7 @@ void mul(void) { //don't need overhead of function (inline it)
                ADC (a2, i1, carry)
                LSR (a2)
                ROR (a1)
                ADC (a2, i1, carry)
                LSR (a2)
                ROR (a1)

-       }
+       endmul:

 
        // end MUL
        #undef a0
 
        // end MUL
        #undef a0