| 260 | } |
| 261 | |
| 262 | u8 MemoryCardProtocol::PS1Read(u8 data) |
| 263 | { |
| 264 | MC_LOG.WriteLn("%s", __FUNCTION__); |
| 265 | |
| 266 | if (!mcd->IsPresent()) |
| 267 | { |
| 268 | return 0xff; |
| 269 | } |
| 270 | |
| 271 | bool sendAck = true; |
| 272 | u8 ret = 0; |
| 273 | |
| 274 | switch (ps1McState.currentByte) |
| 275 | { |
| 276 | case 2: |
| 277 | ret = 0x5a; |
| 278 | break; |
| 279 | case 3: |
| 280 | ret = 0x5d; |
| 281 | break; |
| 282 | case 4: |
| 283 | ps1McState.sectorAddrMSB = data; |
| 284 | ret = 0x00; |
| 285 | break; |
| 286 | case 5: |
| 287 | ps1McState.sectorAddrLSB = data; |
| 288 | ret = 0x00; |
| 289 | RecalculatePS1Addr(); |
| 290 | break; |
| 291 | case 6: |
| 292 | ret = 0x5c; |
| 293 | break; |
| 294 | case 7: |
| 295 | ret = 0x5d; |
| 296 | break; |
| 297 | case 8: |
| 298 | ret = ps1McState.sectorAddrMSB; |
| 299 | break; |
| 300 | case 9: |
| 301 | ret = ps1McState.sectorAddrLSB; |
| 302 | break; |
| 303 | case 138: |
| 304 | ret = ps1McState.checksum; |
| 305 | break; |
| 306 | case 139: |
| 307 | ret = 0x47; |
| 308 | sendAck = false; |
| 309 | break; |
| 310 | case 10: |
| 311 | ps1McState.checksum = ps1McState.sectorAddrMSB ^ ps1McState.sectorAddrLSB; |
| 312 | mcd->Read(ps1McState.buf.data(), ps1McState.buf.size()); |
| 313 | [[fallthrough]]; |
| 314 | default: |
| 315 | ret = ps1McState.buf[ps1McState.currentByte - 10]; |
| 316 | ps1McState.checksum ^= ret; |
| 317 | break; |
| 318 | } |
| 319 | |