#include #include "fakeasm.h" typedef unsigned char u8; u8 data[] = { 0x84, 0x9d, 0xb0, 0x69, 0x9d, 0x84, 0x69, 0x58, 0x75, 0x8c, 0xb0, 0x69, 0x8c, 0x75, 0x69, 0x58 }; u8 i0; u8 i1; u8 i2; u8 i3; u8 x; u8 t; u8 o; void g(void) { // g(i, x, t, o) -> t u8 tmp; ANDI (t, 0x07) MOV (tmp, i2) ANDI (tmp, 3) TST (tmp) BREQ (skip) SUBI (t, -8) skip: t = data[t]; t = ((i3<<24|i2<<16|i1<<8|i0)*t) >> o; AND (t, x) ANDI (t, 3) RET }; int main(void) { unsigned short n; unsigned short s; u8 acc; //TODO: clear all vars/registers for (;;) { acc = 0; n = (i2<<2 | i1>>6); s = (i3<<7 | i2>>1); //voice 1: LDI (x, 1) MOV (t, n) LDI (o, 12) RCALL g(); MOV (acc, t) //voice 2: MOV (x, s) t = n ^ (i2<<3 | i1>>5); LDI (o, 10) RCALL g(); ADD (acc, t) //voice 3: x = s / 3; t = n + ((i3<<13 | i2<<5 | i1>>3) % 3); LDI (o, 10) RCALL g(); ADD (acc, t) //voice 4: x = s / 5; t = 8 + n - ((i3<<14 | i2<<6 | i1>>2) % 3); LDI (o, 9) RCALL g(); ADD (acc, t) putchar(acc<<4); #define tmp acc LDI (tmp, 0) SUBI (i0, -1) ADC (i1, tmp, !i0) ADC (i2, tmp, !i0&&!i1) ADC (i3, tmp, !i0&&!i1&&!i2) } }