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Annotation of nono/vm/areaset.cpp, revision 1.1.1.1

1.1       root        1: //
                      2: // nono
                      3: // Copyright (C) 2017 [email protected]
                      4: //
                      5: 
                      6: #include "areaset.h"
                      7: 
                      8: AreaSetDevice::AreaSetDevice()
                      9: {
                     10:        logname = "area";
                     11:        devname = "AreaSet";
                     12:        devaddr = baseaddr;
                     13:        devlen  = 0x2000;
                     14: }
                     15: 
                     16: AreaSetDevice::~AreaSetDevice()
                     17: {
                     18: }
                     19: 
                     20: uint64
                     21: AreaSetDevice::Read8(uint32 addr)
                     22: {
                     23:        switch (addr) {
                     24:         case 0xe86001:
                     25:                return limit;
                     26:        }
                     27:        return (uint64)-1;
                     28: }
                     29: 
                     30: uint64
                     31: AreaSetDevice::Read16(uint32 addr)
                     32: {
                     33:        return 0xff00 | Read8(addr + 1);
                     34: }
                     35: 
                     36: uint64
                     37: AreaSetDevice::Write8(uint32 addr, uint32 data)
                     38: {
                     39:        switch (addr) {
                     40:         case 0xe86001:
                     41:                putlog(0, "未実装エリアセット書き込み $%02x", data);
                     42:                limit = data;
                     43:                return 0;
                     44:         default:
                     45:                break;
                     46:        }
                     47:        return (uint64)-1;
                     48: }
                     49: 
                     50: uint64
                     51: AreaSetDevice::Write16(uint32 addr, uint32 data)
                     52: {
                     53:        return Write8(addr + 1, data);
                     54: }
                     55: 
                     56: uint64
                     57: AreaSetDevice::Peek8(uint32 addr)
                     58: {
                     59:        switch (addr) {
                     60:         case 0xe86001:
                     61:                return limit;
                     62:         default:
                     63:                return 0xff;
                     64:        }
                     65: }

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