Mapper019テスト

sfl2vlでVerilogに変換しVerilatorでC++に変換したものをシミュレーションに使います。
pgate1
2012/9/15 12:59
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#include "Vmpu6502.h"
#include "NesRom.h"
#include "VMapper019.h"
int main(/*int argc, char **argv, char **env*/)
{
    Vmpu6502 *mpu = new Vmpu6502;
    // 外部要因
    mpu->din = 0x00;
    mpu->read_ack = 0;
    mpu->run = 0;
    mpu->mpu_reset = 0;
    mpu->NMI = 0;
    mpu->IRQn = 0;
    // リセット
    mpu->p_reset = 0;
    mpu->m_clock = 1;
    mpu->eval();
    mpu->p_reset = 1;
    mpu->m_clock = 0;
    mpu->eval();
    // NES rom
    NesRom rom;
    rom.Read("test.nes");
    VMapper019 map;
    map.n16kRomBanks = rom.n16kRomBanks;
    map.fMirroringType = rom.fMirroringType;
    // リセット
    map.p_reset = 0;
    map.m_clock = 1;
    map.eval();
    map.p_reset = 1;
    map.m_clock = 0;
    map.eval();
    // init
    map.init = 1;
    map.m_clock = 1;
    map.eval();
    map.init = 0;
    map.m_clock = 0;
    map.eval();
    FILE *fp;
    fp = fopen("log.txt", "w");
    setbuf(fp, NULL);
    int i;
    int vblank = 0;
    int f_2005_2006 = 0;
    int v_adrs_inc = 0;
    int v_adrs;
    unsigned char wram[0x800];
    memset(wram, 0, 0x800);
    unsigned char exram[0x2000];
    memset(exram, 0, 0x2000);
    int hcount = 0;
    for(i=0; i<500000; i++){
        mpu->m_clock = 1;
        mpu->eval();
        mpu->run = (i%3)==1;
        if(mpu->read_req){
            if(mpu->A<0x2000){
                mpu->din = wram[mpu->A&0x7FF];
            }
            else if(mpu->A&0x8000){
                map.prg_read = 1;
                map.ROM_SELn = 0;
                map.prg_A = mpu->A & 0x7FFF;
                map.m_clock = 1;
                map.eval();
                map.m_clock = 0;
                map.eval();
                map.prg_read = 0;
                mpu->din = rom.prg_rom[map.prg_ram_adrs];
            }
            else if(mpu->A>=0x6000){
                mpu->din = exram[mpu->A&0x1FFF];
            }
            else{
                switch(mpu->A){
                case 0x2002:
                    mpu->din = (vblank<<7);
                    vblank = 0;
                    f_2005_2006 = 0;
                    break;
                case 0x2007:
                    printf("read 2007\n");
                    break;
                case 0x4016:
                case 0x4017:
                    mpu->din = 0;
                    break;
                default:
                    printf("no mem map : %04X\n", mpu->A);
                }
            }
        }
        static int t_ack = 0;
        mpu->read_ack = /*mpu->read_req;*/t_ack;
        t_ack = mpu->read_req;
        if(mpu->write_req){
            if(mpu->A<0x2000){
                wram[mpu->A&0x7FF] = mpu->dout;
            }
            else if(mpu->A&0x8000){
        
                map.prg_write = 1;
                map.ROM_SELn = 0;
                map.prg_A = mpu->A & 0x7FFF;
                map.prg_Din = mpu->dout;
                map.m_clock = 1;
                map.eval();
                map.m_clock = 0;
                map.eval();
                map.prg_write = 0;
                fprintf(fp, "CPU $%04X %02X  $%04X %02X  ",
                    mpu->A, mpu->dout, map.prg_A, map.prg_Din
                );
                switch(mpu->A){
                case 0xE000: fprintf(fp, "bank4 %02X\n", map.v__DOT__prg_bank4);
                    break;
                case 0xE800: fprintf(fp, "bank5 %02X\n", map.v__DOT__prg_bank5);
                    break;
                case 0xF000: fprintf(fp, "bank6 %02X\n", map.v__DOT__prg_bank6);
                    break;
                default: fprintf(fp, "\n");
                }
            
            }
            else if(mpu->A>=0x6000){
                exram[mpu->A&0x1FFF] = mpu->dout;
            }
            else{
                unsigned char data = mpu->dout;
                switch(mpu->A){
                case 0x2000:
                    if(data & 0x04) v_adrs_inc = 32;
                    else            v_adrs_inc = 1;
                    break;
                case 0x2005:
                    f_2005_2006 = !f_2005_2006;
                    break;
                case 0x2006:
                    f_2005_2006 = !f_2005_2006;
                    if(f_2005_2006){    // 上位8bit first write
                        v_adrs = data;
                    }
                    else{   // 下位8bit second write
                        v_adrs = (v_adrs<<8) | data;
                    }
                    break;
                case 0x2007:
                //  fprintf(fp, "VW %04X:%02X\n", v_adrs, data);
                    v_adrs += v_adrs_inc;
                    break;
                }
            }
            
        }
        mpu->m_clock = 0;
        mpu->eval();
        mpu->NMI = 0;
        mpu->IRQn = 1;
        static int old_op = 0;
        if(mpu->v__DOT__ir != old_op){
            old_op = mpu->v__DOT__ir;
            static int base = 0;
            base++;
            if(base>0){
            fprintf(fp,"%04X %02X : %02X %02X %02X %02X %d%d%d%d%d%d%d\n",
                mpu->v__DOT__pc-1, mpu->v__DOT__ir, mpu->v__DOT__ra, mpu->v__DOT__rx, mpu->v__DOT__ry, mpu->v__DOT__sp,
                mpu->v__DOT__fn, mpu->v__DOT__fv, mpu->v__DOT__fb, mpu->v__DOT__fd, 
                mpu->v__DOT__fi, mpu->v__DOT__fz, mpu->v__DOT__fc
            );
            }
            static int pl = 0;
            pl++;
            if(pl==7828 || pl==16336 || pl==24846 || pl==33356 || pl==41866){
                vblank = 1;
            }
        }
    }
    fclose(fp);
    return 0;
}
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