new version

diff --git a/foo.c b/foo.c
index c2bcb5d6c2d96651063ce533aae9b7c1f8f3ae57..87655bf37d9a6fc0638c039ab9c8360c371bd4ee 100644 (file)
--- a/foo.c
+++ b/foo.c
@@ -64,21 +64,22 @@ void mul(void) { //don't need overhead of function (inline it)
        CLR     (a2)
        CLR     (a1)
 
-       CPI     (t, 0x58)
-       BREQ    (mul_58)
-       CPI     (t, 0x69)
+       //sorted by ocurrence, then longest cycle count first
+       CPI     (t, 0x69) // most common
        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, 0x58)
+       BREQ    (mul_58)
+       CPI     (t, 0x8c)
+       BREQ    (mul_8c)
+       CPI     (t, 0x84)
+       BREQ    (mul_84)
        CPI     (t, 0xb0)
        BREQ    (mul_b0)
-       mul_58: // 0101 1000
+       mul_58: // 0101 1000 (24cy)
                LSR (a2)
                ROR (a1)
                LSR (a2)
@@ -103,7 +104,7 @@ void mul(void) { //don't need overhead of function (inline it)
                LSR (a2)
                ROR (a1)
                RJMP    (endmul)
-       mul_69: // 0110 1001
+       mul_69: // 0110 1001 (26cy)
                ADD (a1, i0)
                ADC (a2, i1, carry)
                LSR (a2)
@@ -130,7 +131,7 @@ void mul(void) { //don't need overhead of function (inline it)
                LSR (a2)
                ROR (a1)
                RJMP    (endmul)
-       mul_75: // 0111 0101
+       mul_75: // 0111 0101 (28cy)
                ADD (a1, i0)
                ADC (a2, i1, carry)
                LSR (a2)
@@ -159,7 +160,7 @@ void mul(void) { //don't need overhead of function (inline it)
                LSR (a2)
                ROR (a1)
                RJMP    (endmul)
-       mul_84: // 1000 0100
+       mul_84: // 1000 0100 (22cy)
                LSR (a2)
                ROR (a1)
                LSR (a2)
@@ -182,7 +183,7 @@ void mul(void) { //don't need overhead of function (inline it)
                LSR (a2)
                ROR (a1)
                RJMP    (endmul)
-       mul_8c: // 1000 1100
+       mul_8c: // 1000 1100 (24cy)
                LSR (a2)
                ROR (a1)
                LSR (a2)
@@ -207,7 +208,7 @@ void mul(void) { //don't need overhead of function (inline it)
                LSR (a2)
                ROR (a1)
                RJMP    (endmul)
-       mul_9d: // 1001 1101
+       mul_9d: // 1001 1101 (28cy)
                ADD (a1, i0)
                ADC (a2, i1, carry)
                LSR (a2)
@@ -236,7 +237,7 @@ void mul(void) { //don't need overhead of function (inline it)
                LSR (a2)
                ROR (a1)
                RJMP    (endmul)
-       mul_b0: // 1011 0000
+       mul_b0: // 1011 0000 (22cy)
                LSR (a2)
                ROR (a1)
                LSR (a2)