trunk/src/mess/machine/macrtc.c
| r19318 | r19319 | |
|---|
| 252 | 252 | case 8: case 9: case 10: case 11: /* RAM address $10-$13 */ |
| 253 | 253 | if (LOG_RTC) |
| 254 | 254 | printf("PRAM write, address = %X, data = %X\n", (i & 3) + 0x10, (int) m_rtc_data_byte); |
| 255 | | m_pram[(i & 3) + 0x10] = m_rtc_data_byte; |
| 255 | m_pram[i] = m_rtc_data_byte; |
| 256 | 256 | break; |
| 257 | 257 | |
| 258 | 258 | case 12: |
| r19318 | r19319 | |
|---|
| 274 | 274 | case 28: case 29: case 30: case 31: |
| 275 | 275 | if (LOG_RTC) |
| 276 | 276 | printf("PRAM write, address = %X, data = %X\n", i & 15, (int) m_rtc_data_byte); |
| 277 | | m_pram[i & 15] = m_rtc_data_byte; |
| 277 | m_pram[i] = m_rtc_data_byte; |
| 278 | 278 | break; |
| 279 | 279 | |
| 280 | 280 | default: |
| r19318 | r19319 | |
|---|
| 314 | 314 | case 8: case 9: case 10: case 11: |
| 315 | 315 | if (LOG_RTC) |
| 316 | 316 | printf("PRAM read, address = %X data = %x\n", (i & 3) + 0x10, m_pram[(i & 3) + 0x10]); |
| 317 | | m_rtc_data_byte = m_pram[(i & 3) + 0x10]; |
| 317 | m_rtc_data_byte = m_pram[i]; |
| 318 | 318 | break; |
| 319 | 319 | |
| 320 | 320 | case 16: case 17: case 18: case 19: |
| r19318 | r19319 | |
|---|
| 323 | 323 | case 28: case 29: case 30: case 31: |
| 324 | 324 | if (LOG_RTC) |
| 325 | 325 | printf("PRAM read, address = %X data = %x\n", i & 15, m_pram[i & 15]); |
| 326 | | m_rtc_data_byte = m_pram[i & 15]; |
| 326 | m_rtc_data_byte = m_pram[i]; |
| 327 | 327 | break; |
| 328 | 328 | |
| 329 | 329 | default: |
| r19318 | r19319 | |
|---|
| 350 | 350 | void rtc3430042_device::nvram_default() |
| 351 | 351 | { |
| 352 | 352 | memset(m_pram, 0, 0x100); |
| 353 | | |
| 354 | | // some Mac ROMs are buggy in the presence of |
| 355 | | // no NVRAM, so let's try to setup some reasonable defaults |
| 356 | | m_pram[0] = 0xa8; // valid |
| 357 | | m_pram[4] = 0xcc; |
| 358 | | m_pram[5] = 0x0a; |
| 359 | | m_pram[6] = 0xcc; |
| 360 | | m_pram[7] = 0x0a; |
| 361 | | m_pram[0xc] = 0x42; // XPRAM valid for Plus/SE |
| 362 | | m_pram[0xd] = 0x75; |
| 363 | | m_pram[0xe] = 0x67; |
| 364 | | m_pram[0xf] = 0x73; |
| 365 | | m_pram[0x10] = 0x1b; // volume |
| 366 | | m_pram[0x11] = 0x88; |
| 367 | | m_pram[0x12] = 0x01; |
| 368 | | m_pram[0x13] = 0x4c; |
| 369 | 353 | } |
| 370 | 354 | |
| 371 | 355 | void rtc3430042_device::nvram_read(emu_file &file) |