static void op_writemem(dword opcode,int bytes) { int a,*d; a=op_memaddr(opcode); if(bytes>0x10) { // fpu d =&st.f[OP_RT(opcode)].d; bytes-=0x10; } else { d =&st.g[OP_RT(opcode)].d; } switch(bytes) { case 1: mem_write8(a,d[0]); break; case 2: mem_write16(a,d[0]); break; case 4: mem_write32(a,d[0]); break; case 8: mem_write32(a,d[1]); mem_write32(a+4,d[0]); break; } cpu_notify_writemem(a,bytes); }
static void op_rwmemrl( dword opcode, int write, int right ) { dword x, y, a, s, m; a = op_memaddr(opcode); s = a & 3; a &= ~3; if( write ) { x = mem_read32(a); y = st.g[OP_RT(opcode)].d; if( right ) { m = 0x00ffffff >> (s * 8); y <<= (3 - s) * 8; x &= m; x |= y; } else { m = 0xffffff00 << ((3 - s) * 8); y >>= s * 8; x &= m; x |= y; } mem_write32( a, x ); }
void pad_writedata(dword addr) { dword state; state=*(dword *)&mypad; // print("pad %08X\n",state); st.padstate=state; mem_write32(addr,FLIP32(state)); }
void hw_si_pads(int write) { dword base=WSI[0]; int i; logh("hw-si: dma %08X (write=%i)\n",base,write); if(!cart.first_pad) { print("note: first pad access\n"); cart.first_pad=1; } if(write) { for(i=0;i<16;i++) { RPIF[0x1f0+i]=mem_read32(base+i*4); } } else { // 2 dwords for each controller: // 000000ss bbbbxxyy // ss=status? !&00C0 or error // bbbb=buttons // xx=stick-x // yy=stick-y // construct reply memset(RPIF+0x1f0,0,16*4); RPIF[0x1f0+1+2*selectpad]=pad_getdata(0); // copy it for(i=0;i<16;i++) { mem_write32(base+i*4,RPIF[0x1f0+i]); } } /* for(i=0;i<16;i++) { print("%08X ",RPIF[0x1f0+i]); if((i&3)==3) print("\n"); } */ WSI[1]=NULLFILL; WSI[4]=NULLFILL; RSI[0]=WSI[0]; RSI[6]=0; // not busy os_event(OS_EVENT_SI); }
void writeshort(int *q,dword addr,int bytes) { int x,a,b,i; bytes>>=1; for(i=0;i<bytes;i+=2) { a=q[i+0]&0xffff; b=q[i+1]&0xffff; x=(a<<16)+b; mem_write32(addr+i*2,x); } }
int pif_plugin_hoptime_statistics(EXTRACTED_HEADERS_T *headers, MATCH_DATA_T *match_data) { PIF_PLUGIN_hoptime_T *hoptime = pif_plugin_hdr_get_hoptime(headers); __xread struct hoptime_data in_xfer; __gpr struct hoptime_data out_reg; __xwrite struct hoptime_data out_xfer; uint64_t ctime, ptime; uint64_t latency; unsigned port; /* Get the time at parsing from the intrinsic metadata timestamp * Note that we do this in two parts __0 being the 32 lsbs and __1 the 16 * msbs */ ctime = pif_plugin_meta_get__intrinsic_metadata__ingress_global_tstamp__0(headers); ctime |= ((uint64_t)pif_plugin_meta_get__intrinsic_metadata__ingress_global_tstamp__1(headers)) << 32; /* Retrieve ingress port from P4 metadata */ port = pif_plugin_meta_get__standard_metadata__ingress_port(headers); /* we don't error out here, we just use use a reserved bucket */ if (port >= PORTMAX) port = PORTMAX; /* Retrieve the previous hop time from the hoptime header field */ ptime = ((uint64_t)PIF_HEADER_GET_hoptime___time___1(hoptime)) << 32; ptime |= PIF_HEADER_GET_hoptime___time___0(hoptime); latency = ctime - ptime; mem_read32(&in_xfer, &hoptime_data[port], sizeof(in_xfer)); out_reg = in_xfer; if (latency > out_reg.max_latency) out_reg.max_latency = latency; if (latency < out_reg.min_latency || out_reg.min_latency == 0) out_reg.min_latency = latency; out_reg.count += 1; out_reg.total_latency += latency; out_xfer = out_reg; mem_write32(&out_xfer, &hoptime_data[port], sizeof(out_xfer)); return PIF_PLUGIN_RETURN_FORWARD; }
void SaveState(const char *fname) { MEMFILE *st=NULL; TempAddrT=TempAddr; RefreshAddrT=RefreshAddr; if(geniestage==1) { FCEU_DispMessage("Cannot save FCS in GG screen."); return; } st=mem_fopen_write(fname); if(st!=NULL) { static uint32 totalsize; static uint8 header[16]="FCS"; memset(header+4,0,13); header[3]=VERSION_NUMERIC; mem_fwrite(header,1,16,st); #ifdef ASM_6502 asmcpu_pack(); #endif totalsize=WriteStateChunk(st,1,SFCPU); totalsize+=WriteStateChunk(st,2,SFCPUC); totalsize+=WriteStateChunk(st,3,FCEUPPU_STATEINFO); totalsize+=WriteStateChunk(st,4,FCEUCTRL_STATEINFO); totalsize+=WriteStateChunk(st,5,SFSND); if(SPreSave) SPreSave(); totalsize+=WriteStateChunk(st,0x10,SFMDATA); if(SPostSave) SPostSave(); mem_fseek(st,4,SEEK_SET); mem_write32(totalsize,st); SaveStateStatus[CurrentState]=1; mem_fclose(st); } }
int main(void){ printf("Initializing\n"); mem_init(); printf("Allocating 1MB\n"); uint32_t loc = mem_dynamic_alloc(1<<20,0); printf("Got address 0x%X\n",loc); printf("Writing 192342\n"); mem_write32(loc,192343); printf("Reading...\n"); uint32_t result = mem_read32(loc); printf("Read %d\n",result); printf("Freeing\n"); mem_free(loc); printf("Cleaning up\n"); mem_cleanup(); return 0; }
void pad_writedata(dword addr) { dword state=pad_getdata(0); mem_write32(addr,state); }
u32int process_opcode(farcpu *cpu) { u8int op = cpu->regs.IR; u8int mem_add = 1; //amount to add to memory to get to next OpCode u32int PC = cpu->regs.PC + 1; //just skip the opcode, to make things easier char *memory = cpu->memory; if(op == EXOP) return process_extended_opcode(cpu); switch(op) { case NOP: asm("nop"); break; //might just remove the asm statement sometime, just fo-sho right now /* * Aritmatic functions * TODO: OVERFLOW, EXCEPTION Handeling */ case INC: set_register(cpu, mem_get8(memory, PC), get_register(cpu, mem_get8(memory, PC)) + 1); mem_add++; break; case DEC: set_register(cpu, mem_get8(memory, PC), get_register(cpu, mem_get8(memory, PC)) - 1); mem_add++; break; case ADD: set_register(cpu, AL, process_in_loc(cpu, memory, PC, &mem_add) + process_in_loc(cpu, memory, PC + mem_add-1 , &mem_add)); break; case SUB: set_register(cpu, AL, process_in_loc(cpu, memory, PC, &mem_add) - process_in_loc(cpu, memory, PC + mem_add-1, &mem_add)); break; case MUL: //TODO:OPTIMIZE set_register(cpu, AL, process_in_loc(cpu, memory, PC, &mem_add) * process_in_loc(cpu, memory, PC + mem_add-1, &mem_add)); break; case DIV: //TODO:OPTIMIZE, DIV BY 0 set_register(cpu, AL, (u32int)(process_in_loc(cpu, memory, PC, &mem_add) / process_in_loc(cpu, memory, PC + mem_add-1, &mem_add))); break; //Moving data around: TODO:ADD CONTENT!!! case MOVNM: switch(mem_read8(cpu->memory, PC)){ case 0: mem_write8(cpu->memory, mem_read32(cpu->memory, PC + 2),mem_read8(cpu->memory, PC + 1)); mem_add+=6; break; case 1: mem_write16(cpu->memory, mem_read32(cpu->memory, PC + 3), mem_read16(cpu->memory, PC + 1)); mem_add+=7; break; case 2: mem_write32(cpu->memory, mem_read32(cpu->memory, PC + 6), mem_read32(cpu->memory, PC + 1)); mem_add+=9; break; } mem_add++; break; case MOVRM: switch(reg_sizes[mem_read8(cpu->memory, PC)]){ case 1: mem_write8(cpu->memory, mem_read32(cpu->memory, PC + 1), get_register(cpu, mem_read8(cpu->memory, PC))); break; case 2: mem_write16(cpu->memory, mem_read32(cpu->memory, PC + 1), get_register(cpu, mem_read8(cpu->memory, PC))); break; case 4: mem_write32(cpu->memory, mem_read32(cpu->memory, PC + 1), get_register(cpu, mem_read8(cpu->memory, PC))); break; } mem_add += 5; break; case MOVIM: mem_write8(cpu->memory, mem_read32(cpu->memory, PC), cpu->IO); mem_add += 4; break; case MOVMM: break; case MOVMR: break; case MOVNR: switch(mem_read8(cpu->memory, PC)) { case 0: set_register(cpu, mem_read8(cpu->memory, PC+2), mem_read8(cpu->memory, PC+1)); mem_add += 3; break; //byte case 1: set_register(cpu, mem_read8(cpu->memory, PC+3), mem_read16(cpu->memory, PC+1)); mem_add += 4; break; //short case 2: set_register(cpu, mem_read8(cpu->memory, PC+5), mem_read32(cpu->memory, PC+1)); mem_add += 6; break; //long } break; case MOVIR: set_register(cpu, mem_read8(cpu->memory, PC), cpu->IO); mem_add += 1; break; case MOVRR: set_register(cpu, mem_read8(cpu->memory, PC + 1), get_register(cpu, mem_read8(cpu->memory, PC))); mem_add += 2; break; //bit-minipulating: case SHL: break; case SHR: break; case AND: break; case OR: break; case XOR: break; case NOT: break; //Low-Level: case HWU: switch(mem_read16(cpu->memory, PC)) { case 0x08: gfx_upd(cpu); } mem_add += 2; break; //branching: case JMP: cpu->regs.PC = mem_read32(cpu->memory, PC); return 1; case SJP: cpu->regs.JP = mem_read32(cpu->memory, PC); mem_add += 4; break; case JZ: if(cpu->regs.AL == 0){ cpu->regs.PC = cpu->regs.JP; return 1; }break; case JNZ: if(cpu->regs.AL != 0){ cpu->regs.PC = cpu->regs.JP; return 1; }break; case JFE: if(cpu->regs.AL == cpu->regs.BL){ cpu->regs.PC = cpu->regs.JP; return 1; }break; case JNE: if(cpu->regs.AL != cpu->regs.BL){ cpu->regs.PC = cpu->regs.JP; return 1; }break; case JGT: if(cpu->regs.AL > cpu->regs.BL){ cpu->regs.PC = cpu->regs.JP; return 1; }break; break; case JNG: if(!(cpu->regs.AL > cpu->regs.BL)){ cpu->regs.PC = cpu->regs.JP; return 1; }break; case JGE: if(cpu->regs.AL >= cpu->regs.BL){ cpu->regs.PC = cpu->regs.JP; return 1; }break; case JNGE: if(!(cpu->regs.AL >= cpu->regs.BL)){ cpu->regs.PC = cpu->regs.JP; return 1; }break; case JLT: if(cpu->regs.AL < cpu->regs.BL){ cpu->regs.PC = cpu->regs.JP; return 1; }break; case JNL: if(!(cpu->regs.AL < cpu->regs.BL)){ cpu->regs.PC = cpu->regs.JP; return 1; }break; break; case JLE: if(cpu->regs.AL <= cpu->regs.BL){ cpu->regs.PC = cpu->regs.JP; return 1; }break; break; case JNLE: if(!(cpu->regs.AL <= cpu->regs.BL)){ cpu->regs.PC = cpu->regs.JP; return 1; }break; break; case MOVNRM: switch(mem_read8(cpu->memory, PC)) { case 0: set_register(cpu, get_register(cpu, mem_get8(cpu->memory, PC + 2)), mem_read8(cpu->memory, PC+1)); mem_add += 4; break; //byte case 1: set_register(cpu, get_register(cpu, mem_get8(cpu->memory, PC + 3)), mem_read16(cpu->memory, PC+1)); mem_add += 5; break; //short case 2: set_register(cpu, get_register(cpu, mem_get8(cpu->memory, PC + 5)), mem_read32(cpu->memory, PC+1)); mem_add += 7; break; //long } break; case MOVRRM: switch(reg_sizes[mem_read8(cpu->memory, PC)]){ case 1: mem_write8(cpu->memory, get_register(cpu, mem_get8(cpu->memory, PC + 1)), get_register(cpu, mem_read8(cpu->memory, PC))); break; case 2: mem_write16(cpu->memory, get_register(cpu, mem_get8(cpu->memory, PC + 1)), get_register(cpu, mem_read8(cpu->memory, PC))); break; case 4: mem_write32(cpu->memory, get_register(cpu, mem_get8(cpu->memory, PC + 1)), get_register(cpu, mem_read8(cpu->memory, PC))); break; } mem_add += 2; break; case MOVIRM: break; case MOVMRM: break; case OUTN: D("G"); cpu->IO = mem_read8(cpu->memory, PC); D("Y"); mem_add += 1; D("H"); break; case OUTR: cpu->IO = get_register(cpu, mem_read8(cpu->memory, PC)); mem_add += 1; break; case OUTM: cpu->IO = mem_read8(cpu->memory, mem_read32(cpu->memory, PC)); mem_add += 4; break; case RET: break; } cpu->regs.PC += mem_add + 0; return 0; }