diff options
Diffstat (limited to 'ppu')
| -rw-r--r-- | ppu/ppu.c | 57 |
1 files changed, 57 insertions, 0 deletions
diff --git a/ppu/ppu.c b/ppu/ppu.c new file mode 100644 index 0000000..9b4fc5a --- /dev/null +++ b/ppu/ppu.c @@ -0,0 +1,57 @@ +#define inline + +#include <ctype.h> +#include <omp.h> +#include <stdio.h> +#include <string.h> + +#pragma clang diagnostic ignored "-Wreturn-type" + +typedef char* string; + +// opcodes! +// 0: halt +// 1: nop +// 2: mov +// 3: movi +// 4: add +// 5: addi +// 6: sub +// 7: subi +// 8: moveq -> moves m[B] to m[A] if m[Q] == 0 +// program counter is m[0] +// Q is set to the previous A in memory + +// error handling for unknown ops +#define W 0 + +// clang-format off +#define J while +#define S 1<<20 +#define H !K-- +m[S]={0},c,N,Q,E; +ppu(){E=1;_Pragma("omp parallel")J(E){_Pragma("omp single")N=m[m[0]],c=m[0],m[0]+=++N*4;int i;_Pragma("omp for")for(i=0;i<N;i++){int t=c+i*4,Y=m[t++],K=m[t++],A=m[t++],B=m[t++];H?E=0:H?:H?m[A]=m[B]:H?m[A]=B:H?m[A]+=m[B]:H?m[A]+=m[B]:H?m[A]-=m[B]?H:m[Q]?:(m[A]=m[B]):W;Q=A;}}} + +#define X J(isspace(*I))I++ +char*t="halt\0\0nop\0\0mov\0\2movi\0\2add\0\2addi\0\2sub\0\2subi\0\2moveq\0\2\1";*D,Z; +char*pas(char*I){J(*I){X;if(*I==64)Z=strtol(++I,&I,10);X;char*O=t,F=0;J(*O!=1){int G=strlen(O),L=O[G+1],V=L,B=strncmp(I,O,G);F++,O+=G+2;if(B||!isspace(I[G]))continue;I+=G;*D++=Z,Z=0;*D++=F-1;J(V--){X;*D++=strtol(I,&I,10);}J(2-L++)*D++=0;goto N;}return I;N:;}return 0;} +// clang-format on + +main() { + D = &m[ 1 ]; + pas("@4 movi 10 2"); + + // int C; + // for (C = 0; C < 16; C++) printf("%i ", m[ C + 1 ]); + // fflush(stdout); + + int x[] = { 1, + 3, 3, 5, 1, + 0, 3, 5, 2, + 0, 3, 5, 3, + 0, 3, 5, 4, + 0, 0, 0, 0 }; + memcpy(m, x, sizeof(x)); + ppu(); + printf("result: %i\n", m[ 5 ]); +}
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