Commit | Line | Data |
---|---|---|
61fab018 | 1 | #include <stdio.h> |
da32ed67 | 2 | #include "fakeasm.h" |
61fab018 | 3 | typedef unsigned char u8; |
da32ed67 | 4 | |
24abdcbb TG |
5 | u8 data[] = { |
6 | 0x84, 0x9d, 0xb0, 0x69, 0x9d, 0x84, 0x69, 0x58, | |
7 | 0x75, 0x8c, 0xb0, 0x69, 0x8c, 0x75, 0x69, 0x58 | |
8 | }; | |
06aad1ff TG |
9 | u8 i0; |
10 | u8 i1; | |
11 | u8 i2; | |
12 | u8 i3; | |
3b86ca43 TG |
13 | u8 x; |
14 | u8 t; | |
15 | u8 o; | |
46a8d83c TG |
16 | void g(int i) { |
17 | // g(i, x, t, o) -> t | |
63363195 | 18 | u8 tmp; |
0f219114 | 19 | ANDI (t, 0x07) |
32632e61 | 20 | MOV (tmp, i2) |
63363195 | 21 | ANDI (tmp, 3) |
09cf3949 TG |
22 | TST (tmp) |
23 | BREQ (skip) | |
24 | SUBI (t, -8) | |
25 | skip: | |
c616f0c2 | 26 | t = data[t]; |
c616f0c2 TG |
27 | t = (i*t) >> o; |
28 | AND (t, x) | |
29 | ANDI (t, 3) | |
46a8d83c | 30 | RET |
61fab018 TG |
31 | }; |
32 | ||
33 | int main(void) { | |
5dd8b8ff | 34 | int i = 0; |
c65ddced TG |
35 | unsigned short n; |
36 | unsigned short s; | |
ab6fe4c2 | 37 | u8 acc; |
89f35588 | 38 | //TODO: clear all vars/registers |
5dd8b8ff | 39 | for (;;) { |
ab6fe4c2 | 40 | acc = 0; |
0eba146b | 41 | n = (i2<<2 | i1>>6); |
b67a2de3 | 42 | s = (i3<<7 | i2>>1); |
3b86ca43 TG |
43 | |
44 | //voice 1: | |
45 | LDI (x, 1) | |
46 | MOV (t, n) | |
47 | LDI (o, 12) | |
46a8d83c TG |
48 | RCALL g(i); |
49 | MOV (acc, t) | |
3b86ca43 TG |
50 | |
51 | //voice 2: | |
52 | MOV (x, s) | |
53c905aa | 53 | t = n ^ (i2<<3 | i1>>5); |
3b86ca43 | 54 | LDI (o, 10) |
46a8d83c TG |
55 | RCALL g(i); |
56 | ADD (acc, t) | |
3b86ca43 TG |
57 | |
58 | //voice 3: | |
59 | x = s / 3; | |
d9218a18 | 60 | t = n + ((i3<<13 | i2<<5 | i1>>3) % 3); |
3b86ca43 | 61 | LDI (o, 10) |
46a8d83c TG |
62 | RCALL g(i); |
63 | ADD (acc, t) | |
3b86ca43 TG |
64 | |
65 | //voice 4: | |
66 | x = s / 5; | |
704b11ab | 67 | t = 8 + n - ((i3<<14 | i2<<6 | i1>>2) % 3); |
3b86ca43 | 68 | LDI (o, 9) |
46a8d83c TG |
69 | RCALL g(i); |
70 | ADD (acc, t) | |
bfce2f8c | 71 | |
ab6fe4c2 | 72 | putchar(acc<<4); |
06aad1ff | 73 | i++; |
89f35588 TG |
74 | #define tmp acc |
75 | LDI (tmp, 0) | |
76 | SUBI (i0, -1) | |
77 | ADC (i1, tmp, !i0) | |
78 | ADC (i2, tmp, !i0&&!i1) | |
79 | ADC (i3, tmp, !i0&&!i1&&!i2) | |
fe9a76e4 | 80 | } |
61fab018 | 81 | } |