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; | |
965274e2 | 16 | void g(void) { |
46a8d83c | 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]; |
965274e2 | 27 | t = ((i3<<24|i2<<16|i1<<8|i0)*t) >> o; |
c616f0c2 TG |
28 | AND (t, x) |
29 | ANDI (t, 3) | |
46a8d83c | 30 | RET |
61fab018 TG |
31 | }; |
32 | ||
33 | int main(void) { | |
a1631438 TG |
34 | u8 n; |
35 | u8 s; | |
ab6fe4c2 | 36 | u8 acc; |
89f35588 | 37 | //TODO: clear all vars/registers |
5dd8b8ff | 38 | for (;;) { |
ab6fe4c2 | 39 | acc = 0; |
0eba146b | 40 | n = (i2<<2 | i1>>6); |
b67a2de3 | 41 | s = (i3<<7 | i2>>1); |
3b86ca43 TG |
42 | |
43 | //voice 1: | |
44 | LDI (x, 1) | |
45 | MOV (t, n) | |
46 | LDI (o, 12) | |
965274e2 | 47 | RCALL g(); |
46a8d83c | 48 | MOV (acc, t) |
3b86ca43 TG |
49 | |
50 | //voice 2: | |
51 | MOV (x, s) | |
1b023e92 TG |
52 | #define tmp o |
53 | MOV (o, i2) | |
54 | LSL (o) | |
55 | LSL (o) | |
56 | LSL (o) | |
57 | #undef tmp | |
58 | t = n ^ (o | i1>>5); | |
3b86ca43 | 59 | LDI (o, 10) |
965274e2 | 60 | RCALL g(); |
46a8d83c | 61 | ADD (acc, t) |
3b86ca43 TG |
62 | |
63 | //voice 3: | |
64 | x = s / 3; | |
d9218a18 | 65 | t = n + ((i3<<13 | i2<<5 | i1>>3) % 3); |
3b86ca43 | 66 | LDI (o, 10) |
965274e2 | 67 | RCALL g(); |
46a8d83c | 68 | ADD (acc, t) |
3b86ca43 TG |
69 | |
70 | //voice 4: | |
71 | x = s / 5; | |
704b11ab | 72 | t = 8 + n - ((i3<<14 | i2<<6 | i1>>2) % 3); |
3b86ca43 | 73 | LDI (o, 9) |
965274e2 | 74 | RCALL g(); |
46a8d83c | 75 | ADD (acc, t) |
bfce2f8c | 76 | |
ab6fe4c2 | 77 | putchar(acc<<4); |
89f35588 TG |
78 | #define tmp acc |
79 | LDI (tmp, 0) | |
80 | SUBI (i0, -1) | |
81 | ADC (i1, tmp, !i0) | |
82 | ADC (i2, tmp, !i0&&!i1) | |
83 | ADC (i3, tmp, !i0&&!i1&&!i2) | |
dd7bbc4a | 84 | #undef tmp |
fe9a76e4 | 85 | } |
61fab018 | 86 | } |