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 (;;) { |
7874ed03 TG |
39 | MOV (n, i2) |
40 | LSL (n) | |
41 | LSL (n) | |
bc7680e3 TG |
42 | #define tmp acc |
43 | MOV (tmp, i1) | |
5d4207f9 TG |
44 | SWAP (tmp) |
45 | ANDI (tmp, 0x0f) | |
3eef1ade TG |
46 | LSR (tmp) |
47 | LSR (tmp) | |
128ff01a | 48 | OR (n, tmp) |
bc7680e3 | 49 | #undef tmp |
df192822 | 50 | MOV (s, i3) |
27b03017 TG |
51 | ROR (s) |
52 | ROR (s) | |
53 | ANDI (s, 0x80) | |
a582bbc3 TG |
54 | #define tmp acc |
55 | MOV (tmp, i2) | |
56 | LSR (tmp) | |
e389879f | 57 | OR (s, tmp) |
df192822 | 58 | #undef tmp |
3b86ca43 TG |
59 | |
60 | //voice 1: | |
61 | LDI (x, 1) | |
62 | MOV (t, n) | |
63 | LDI (o, 12) | |
965274e2 | 64 | RCALL g(); |
46a8d83c | 65 | MOV (acc, t) |
3b86ca43 TG |
66 | |
67 | //voice 2: | |
68 | MOV (x, s) | |
1b023e92 | 69 | #define tmp o |
94c4920f TG |
70 | MOV (tmp, i2) |
71 | LSL (tmp) | |
72 | LSL (tmp) | |
73 | LSL (tmp) | |
74 | MOV (t, i1) | |
4b0b7dc5 TG |
75 | SWAP (t) |
76 | ANDI (t, 0xf) | |
77 | LSR (t) | |
94c4920f | 78 | OR (t, tmp) |
1b023e92 | 79 | #undef tmp |
23872091 | 80 | EOR (t, n) |
3b86ca43 | 81 | LDI (o, 10) |
965274e2 | 82 | RCALL g(); |
46a8d83c | 83 | ADD (acc, t) |
3b86ca43 TG |
84 | |
85 | //voice 3: | |
86 | x = s / 3; | |
80b19f39 | 87 | t = n + (((i3&0x01)<<13 | i2<<5 | i1>>3) % 3); |
3b86ca43 | 88 | LDI (o, 10) |
965274e2 | 89 | RCALL g(); |
46a8d83c | 90 | ADD (acc, t) |
3b86ca43 TG |
91 | |
92 | //voice 4: | |
93 | x = s / 5; | |
355bb236 | 94 | t = 8 + n - (((i3&0x01)<<14 | i2<<6 | i1>>2) % 3); |
3b86ca43 | 95 | LDI (o, 9) |
965274e2 | 96 | RCALL g(); |
46a8d83c | 97 | ADD (acc, t) |
bfce2f8c | 98 | |
ab6fe4c2 | 99 | putchar(acc<<4); |
89f35588 TG |
100 | #define tmp acc |
101 | LDI (tmp, 0) | |
102 | SUBI (i0, -1) | |
103 | ADC (i1, tmp, !i0) | |
104 | ADC (i2, tmp, !i0&&!i1) | |
105 | ADC (i3, tmp, !i0&&!i1&&!i2) | |
dd7bbc4a | 106 | #undef tmp |
fe9a76e4 | 107 | } |
61fab018 | 108 | } |