Return to areaset.cpp CVS log

Up to [Isaki's NoNo m68k/m88k emulator] / nono / vm

Annotation of nono/vm/areaset.cpp, revision 1.1.1.5

1.1       root        1: //
                      2: // nono
1.1.1.2   root        3: // Copyright (C) 2020 nono project
                      4: // Licensed under nono-license.txt
1.1       root        5: //
                      6: 
                      7: #include "areaset.h"
1.1.1.3   root        8: #include "mpu.h"
1.1       root        9: 
1.1.1.4   root       10: std::unique_ptr<AreaSetDevice> gAreaSet;
                     11: 
1.1       root       12: AreaSetDevice::AreaSetDevice()
1.1.1.5 ! root       13:        : inherited("AreaSet")
1.1       root       14: {
                     15:        devaddr = baseaddr;
                     16:        devlen  = 0x2000;
                     17: }
                     18: 
                     19: AreaSetDevice::~AreaSetDevice()
                     20: {
                     21: }
                     22: 
1.1.1.3   root       23: void
                     24: AreaSetDevice::ResetHard()
                     25: {
                     26:        limit = 0;
                     27: }
                     28: 
1.1       root       29: uint64
                     30: AreaSetDevice::Read8(uint32 addr)
                     31: {
                     32:        switch (addr) {
                     33:         case 0xe86001:
                     34:                return limit;
                     35:        }
                     36:        return (uint64)-1;
                     37: }
                     38: 
                     39: uint64
                     40: AreaSetDevice::Read16(uint32 addr)
                     41: {
                     42:        return 0xff00 | Read8(addr + 1);
                     43: }
                     44: 
                     45: uint64
                     46: AreaSetDevice::Write8(uint32 addr, uint32 data)
                     47: {
1.1.1.3   root       48:        gMPU->AddCycle(7);      // InsideOut p.135
                     49: 
1.1       root       50:        switch (addr) {
                     51:         case 0xe86001:
                     52:                putlog(0, "未実装エリアセット書き込み $%02x", data);
                     53:                limit = data;
                     54:                return 0;
                     55:         default:
                     56:                break;
                     57:        }
                     58:        return (uint64)-1;
                     59: }
                     60: 
                     61: uint64
                     62: AreaSetDevice::Write16(uint32 addr, uint32 data)
                     63: {
                     64:        return Write8(addr + 1, data);
                     65: }
                     66: 
                     67: uint64
                     68: AreaSetDevice::Peek8(uint32 addr)
                     69: {
                     70:        switch (addr) {
                     71:         case 0xe86001:
                     72:                return limit;
                     73:         default:
                     74:                return 0xff;
                     75:        }
                     76: }

This archive runs on limited infrastructure. Preserving old code on modern bandwidth. Automated agents are requested to crawl responsibly.