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HDD: fix edge-case for old save-state m_buf_ptr

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This commit is contained in:
tomcw 2021-11-15 20:26:53 +00:00
parent 01f89f88eb
commit abc631432d
1 changed files with 2 additions and 0 deletions
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2
source/Harddisk.cpp
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@ -792,6 +792,8 @@ bool HarddiskInterfaceCard::LoadSnapshotHDDUnit(YamlLoadHelper& yamlLoadHelper,
Disk_Status_e diskStatusNext = (Disk_Status_e) yamlLoadHelper.LoadUint(SS_YAML_KEY_STATUS_NEXT);
Disk_Status_e diskStatusPrev = (Disk_Status_e) yamlLoadHelper.LoadUint(SS_YAML_KEY_STATUS_PREV);
m_hardDiskDrive[unit].m_buf_ptr = yamlLoadHelper.LoadUint(SS_YAML_KEY_BUF_PTR);
if (m_hardDiskDrive[unit].m_buf_ptr >= sizeof(m_hardDiskDrive[unit].m_buf)) // pre-v3 save-states would leave m_buf_ptr==0x200 after reading a block
m_hardDiskDrive[unit].m_buf_ptr = sizeof(m_hardDiskDrive[unit].m_buf) - 1;
if (!yamlLoadHelper.GetSubMap(SS_YAML_KEY_BUF))
throw hddUnitName + std::string(": Missing: ") + std::string(SS_YAML_KEY_BUF);