mirror of
https://github.com/holub/mame
synced 2025-05-06 06:14:45 +03:00
Port from MESS, nw
This commit is contained in:
Angelo Salese
parent
6742160c25
commit
b6012aaa60
@ -543,6 +543,14 @@ static UINT32 cd_readLong(UINT32 addr)
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}
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}
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static void cr_standard_return(UINT16 cur_status)
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{
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cr1 = cur_status | 0x00; //options << 4 | repeat & 0xf
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cr2 = (cur_track == 0xff) ? 0xffff : (cdrom_get_adr_control(cdrom, cur_track)<<8 | cur_track);
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cr3 = (0x01<<8) | (cd_curfad>>16); //index & 0xff00
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cr4 = cd_curfad;
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}
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static void cd_writeWord(running_machine &machine, UINT32 addr, UINT16 data)
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{
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UINT32 temp;
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@ -597,17 +605,7 @@ static void cd_writeWord(running_machine &machine, UINT32 addr, UINT16 data)
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case 0x0000:
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//CDROM_LOG(("%s:CD: Get Status\n", machine.describe_context()))
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hirqreg |= CMOK;
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cr1 = cd_stat;
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if (cur_track == 0xff)
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{
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cr2 = 0xffff;
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}
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else
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{
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cr2 = cdrom_get_adr_control(cdrom, cur_track)<<8 | cur_track;
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}
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cr3 = 0x100 | (cd_curfad>>16);
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cr4 = cd_curfad;
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cr_standard_return(cd_stat);
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//CDROM_LOG((" = %04x %04x %04x %04x %04x\n", hirqreg, cr1, cr2, cr3, cr4))
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break;
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@ -620,10 +618,11 @@ static void cd_writeWord(running_machine &machine, UINT32 addr, UINT16 data)
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cr4 = 0x0400;
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break;
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case 0x200: // Get TOC
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case 0x0200: // Get TOC
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CDROM_LOG(("%s:CD: Get TOC\n", machine.describe_context()))
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cd_readTOC();
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cd_stat = CD_STAT_TRANS|CD_STAT_PAUSE;
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cr1 = cd_stat;
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cr2 = 102*2; // TOC length in words (102 entries @ 2 words/4bytes each)
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cr3 = 0;
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cr4 = 0;
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@ -640,13 +639,11 @@ static void cd_writeWord(running_machine &machine, UINT32 addr, UINT16 data)
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switch (cr1 & 0xff)
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{
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case 0: // get total session info / disc end
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cr2 = 0;
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cr3 = 0x0100 | tocbuf[(101*4)+1];
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cr4 = tocbuf[(101*4)+2]<<8 | tocbuf[(101*4)+3];
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break;
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case 1: // get total session info / disc start
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cr2 = 0;
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cr3 = 0x0100; // sessions in high byte, session start in lower
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cr4 = 0;
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break;
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@ -668,14 +665,13 @@ static void cd_writeWord(running_machine &machine, UINT32 addr, UINT16 data)
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// CR1 & 8 = retry reading mode 2 sectors
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// CR1 & 10 = force single-speed
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CDROM_LOG(("%s:CD: Initialize CD system\n", machine.describe_context()))
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hirqreg |= (CMOK|DRDY|ESEL);
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hirqreg &= 0xffe5;
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hirqreg |= (CMOK|ESEL);
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cd_stat = CD_STAT_PAUSE;
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cd_curfad = 150;
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in_buffer = 0;
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buffull = 0;
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cr2 = 0x4101;
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cr3 = 0x100 | ((cd_curfad>>16)&0xff);
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cr4 = cd_curfad;
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cr_standard_return(cd_stat);
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break;
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case 0x0600: // end data transfer (TODO: needs to be worked on!)
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@ -792,10 +788,8 @@ static void cd_writeWord(running_machine &machine, UINT32 addr, UINT16 data)
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CDROM_LOG(("CD: Play Disc: start %x length %x\n", cd_curfad, fadstoplay))
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cr2 = cdrom_get_adr_control(cdrom, cur_track)<<8 | cur_track;
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cr3 = (0x100) | ((cd_curfad>>16)&0xff); // index of subcode in hi byte, frame address
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cr4 = cd_curfad & 0xffff;
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hirqreg |= (CMOK|DRDY);
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cr_standard_return(cd_stat);
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hirqreg |= (CMOK);
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oddframe = 0;
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in_buffer = 0;
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@ -832,9 +826,6 @@ static void cd_writeWord(running_machine &machine, UINT32 addr, UINT16 data)
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}
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else
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printf("disc seek with params %04x %04x\n",cr1,cr2); //Area 51 sets this up
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cr3 = (temp>>16)&0xff;
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cr4 = temp;
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}
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else
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{
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@ -854,16 +845,16 @@ static void cd_writeWord(running_machine &machine, UINT32 addr, UINT16 data)
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cur_track = 0xff;
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cdda_stop_audio( machine.device( "cdda" ) ); //stop any pending CD-DA
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}
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cr3 = (cd_curfad>>16)&0xff;
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cr4 = cd_curfad;
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}
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hirqreg |= CMOK;
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cr1 = cd_stat;
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cr2 = cdrom_get_adr_control(cdrom, cur_track)<<8 | cur_track;
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cr_standard_return(cd_stat);
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break;
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case 0x1200: // FFWD / REW
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//cr1 bit 0 determines if this is a Fast Forward (0) or a Rewind (1) command
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// ...
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break;
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case 0x2000: // Get SubCode Q / RW Channel
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@ -915,9 +906,14 @@ static void cd_writeWord(running_machine &machine, UINT32 addr, UINT16 data)
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}
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hirqreg |= (CMOK|ESEL);
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cr_standard_return(cd_stat);
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}
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break;
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case 0x3200:
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popmessage("Last Buffer Destination triggered, contact MAMEdev");
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break;
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case 0x4000: // Set Filter Range
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// cr1 low + cr2 = FAD0, cr3 low + cr4 = FAD1
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// cr3 hi = filter num.
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@ -929,10 +925,8 @@ static void cd_writeWord(running_machine &machine, UINT32 addr, UINT16 data)
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filters[fnum].fad = ((cr1 & 0xff)<<16) | cr2;
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filters[fnum].range = ((cr3 & 0xff)<<16) | cr4;
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hirqreg |= (CMOK|ESEL|DRDY);
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cr2 = 0x4101; // ctrl/adr in hi byte, track # in low byte
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cr3 = 0x0100|((cd_curfad>>16)&0xff);
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cr4 = (cd_curfad & 0xffff);
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hirqreg |= (CMOK|ESEL);
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cr_standard_return(cd_stat);
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}
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break;
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@ -951,9 +945,7 @@ static void cd_writeWord(running_machine &machine, UINT32 addr, UINT16 data)
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filters[fnum].cival = cr4&0xff;
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hirqreg |= (CMOK|ESEL);
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cr2 = 0x4101; // ctrl/adr in hi byte, track # in low byte
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cr3 = 0x0100|((cd_curfad>>16)&0xff);
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cr4 = (cd_curfad & 0xffff);
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cr_standard_return(cd_stat);
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}
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break;
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@ -975,10 +967,8 @@ static void cd_writeWord(running_machine &machine, UINT32 addr, UINT16 data)
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}
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CDROM_LOG(("%s:CD: Set Filter Mode filt %x mode %x\n", machine.describe_context(), fnum, mode))
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hirqreg |= (CMOK|ESEL|DRDY);
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cr2 = 0x4101; // ctrl/adr in hi byte, track # in low byte
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cr3 = 0x0100|((cd_curfad>>16)&0xff);
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cr4 = (cd_curfad & 0xffff);
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hirqreg |= (CMOK|ESEL);
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cr_standard_return(cd_stat);
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}
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break;
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@ -999,9 +989,7 @@ static void cd_writeWord(running_machine &machine, UINT32 addr, UINT16 data)
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}
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hirqreg |= (CMOK|ESEL);
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cr2 = 0x4101; // ctrl/adr in hi byte, track # in low byte
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cr3 = 0x0100|((cd_curfad>>16)&0xff);
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cr4 = (cd_curfad & 0xffff);
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cr_standard_return(cd_stat);
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}
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break;
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@ -1031,34 +1019,32 @@ static void cd_writeWord(running_machine &machine, UINT32 addr, UINT16 data)
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if (freeblocks == 200) { onesectorstored = 0; }
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hirqreg |= (CMOK|ESEL);
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cr2 = 0x4101; // ctrl/adr in hi byte, track # in low byte
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cr3 = 0x0100|((cd_curfad>>16)&0xff);
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cr4 = (cd_curfad & 0xffff);
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cr_standard_return(cd_stat);
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return;
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}
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// ...
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hirqreg |= (CMOK|ESEL);
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cr2 = 0x4101; // ctrl/adr in hi byte, track # in low byte
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cr3 = 0x0100|((cd_curfad>>16)&0xff);
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cr4 = (cd_curfad & 0xffff);
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cr_standard_return(cd_stat);
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break;
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case 0x5000: // get Buffer Size
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cr1 = cd_stat;
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cr2 = freeblocks;
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if (cr2 > 200) cr2 = 200; // ???
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cr2 = (freeblocks > 200) ? 200 : freeblocks;
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cr3 = 0x1800;
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cr4 = 200;
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CDROM_LOG(("CD: Get Buffer Size = %d\n", cr2))
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hirqreg |= (CMOK|ESEL|DRDY); // DRDY is probably wrong
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hirqreg |= (CMOK);
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break;
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case 0x5100: // get # sectors used in a buffer
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{
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UINT32 bufnum = cr3>>8;
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CDROM_LOG(("%s:CD: Get Sector Number (bufno %d) = %d blocks\n", machine.describe_context(), bufnum, cr4))
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cr1 = cd_stat;
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cr2 = 0;
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cr3 = 0;
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/* TODO: Akumajou Dracula X reads 0 there, why? */
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// is the partition empty?
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if (partitions[bufnum].size == -1)
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@ -1069,11 +1055,6 @@ static void cd_writeWord(running_machine &machine, UINT32 addr, UINT16 data)
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{
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cr4 = partitions[bufnum].numblks;
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}
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CDROM_LOG(("%s:CD: Get Sector Number (bufno %d) = %d blocks\n", machine.describe_context(), bufnum, cr4))
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cr2 = 0;
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cr3 = 0;
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hirqreg |= (CMOK|DRDY);
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}
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break;
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@ -1101,10 +1082,7 @@ static void cd_writeWord(running_machine &machine, UINT32 addr, UINT16 data)
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}
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hirqreg |= (CMOK|ESEL);
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cr1 = cd_stat;
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cr2 = 0x4101; // CTRL/track
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cr3 = (cd_curfad>>16)&0xff;
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cr4 = (cd_curfad & 0xffff);
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cr_standard_return(cd_stat);
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}
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break;
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@ -1126,6 +1104,7 @@ static void cd_writeWord(running_machine &machine, UINT32 addr, UINT16 data)
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{
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cr1 |= CD_STAT_REJECT & 0xff00;
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hirqreg |= (CMOK|ESEL);
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printf("Get sector info reject\n");
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}
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else
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{
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@ -1140,7 +1119,7 @@ static void cd_writeWord(running_machine &machine, UINT32 addr, UINT16 data)
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case 0x6000: // set sector length
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CDROM_LOG(("%s:CD: Set sector length\n", machine.describe_context()))
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hirqreg |= (CMOK|ESEL|EFLS|SCDQ|DRDY);
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hirqreg |= (CMOK|ESEL);
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switch (cr1 & 0xff)
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{
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@ -1187,7 +1166,7 @@ static void cd_writeWord(running_machine &machine, UINT32 addr, UINT16 data)
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{
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printf("CD: invalid buffer number\n");
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/* TODO: why this is happening? */
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//cd_stat = 0xff00; // ERROR
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cr_standard_return(CD_STAT_REJECT);
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hirqreg |= (CMOK|EHST);
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return;
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}
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@ -1196,7 +1175,7 @@ static void cd_writeWord(running_machine &machine, UINT32 addr, UINT16 data)
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{
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printf("CD: buffer is empty\n");
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/* TODO: why this is happening? */
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//cd_stat = 0xff00; // ERROR
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cr_standard_return(CD_STAT_REJECT);
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hirqreg |= (CMOK|EHST);
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return;
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}
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@ -1212,6 +1191,7 @@ static void cd_writeWord(running_machine &machine, UINT32 addr, UINT16 data)
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transpart = &partitions[bufnum];
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cd_stat |= CD_STAT_TRANS;
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cr_standard_return(cd_stat);
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hirqreg |= (CMOK|EHST|DRDY);
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}
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break;
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@ -1229,7 +1209,7 @@ static void cd_writeWord(running_machine &machine, UINT32 addr, UINT16 data)
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{
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printf("CD: invalid buffer number\n");
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/* TODO: why this is happening? */
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//cd_stat = CD_STAT_REJECT; // ERROR
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cr_standard_return(CD_STAT_REJECT);
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hirqreg |= (CMOK|EHST);
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return;
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}
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@ -1238,7 +1218,7 @@ static void cd_writeWord(running_machine &machine, UINT32 addr, UINT16 data)
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{
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printf("CD: buffer is empty\n");
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/* TODO: why this is happening? */
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//cd_stat = CD_STAT_REJECT; // ERROR
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cr_standard_return(CD_STAT_REJECT);
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hirqreg |= (CMOK|EHST);
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return;
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}
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@ -1259,6 +1239,7 @@ static void cd_writeWord(running_machine &machine, UINT32 addr, UINT16 data)
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partitions[bufnum].numblks -= sectnum;
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cd_stat &= ~CD_STAT_TRANS;
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cr_standard_return(cd_stat);
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hirqreg |= (CMOK|EHST);
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}
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break;
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@ -1275,7 +1256,7 @@ static void cd_writeWord(running_machine &machine, UINT32 addr, UINT16 data)
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{
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printf("CD: invalid buffer number\n");
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/* TODO: why this is happening? */
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//cd_stat = 0xff00; // ERROR
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cr_standard_return(CD_STAT_REJECT);
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hirqreg |= (CMOK|EHST);
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return;
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}
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@ -1284,7 +1265,7 @@ static void cd_writeWord(running_machine &machine, UINT32 addr, UINT16 data)
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{
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printf("CD: buffer is empty\n");
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/* TODO: why this is happening? */
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//cd_stat = 0xff00; // ERROR
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cr_standard_return(CD_STAT_REJECT);
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hirqreg |= (CMOK|EHST);
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return;
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}
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@ -1300,6 +1281,7 @@ static void cd_writeWord(running_machine &machine, UINT32 addr, UINT16 data)
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transpart = &partitions[bufnum];
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cd_stat &= ~CD_STAT_TRANS;
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cr_standard_return(cd_stat);
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hirqreg |= (CMOK|EHST|DRDY);
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}
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break;
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@ -1312,7 +1294,11 @@ static void cd_writeWord(running_machine &machine, UINT32 addr, UINT16 data)
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case 0x6700: // get copy error
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CDROM_LOG(("%s:CD: Get copy error\n", machine.describe_context()))
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hirqreg |= (CMOK|ESEL|EFLS|SCDQ|DRDY);
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cr1 = cd_stat;
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cr2 = 0;
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cr3 = 0;
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cr4 = 0;
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hirqreg |= (CMOK);
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break;
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case 0x7000: // change directory
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@ -1326,26 +1312,30 @@ static void cd_writeWord(running_machine &machine, UINT32 addr, UINT16 data)
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temp = 0;
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#endif
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read_new_dir(machine, temp);
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cr_standard_return(cd_stat);
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break;
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case 0x7100: // Read directory entry
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CDROM_LOG(("%s:CD: Read Directory Entry\n", machine.describe_context()))
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hirqreg |= (CMOK|EFLS);
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temp = (cr3&0xff)<<16;
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temp |= cr4;
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// TODO!
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//temp = (cr3&0xff)<<16;
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//temp |= cr4;
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#if 0
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if(temp == 0xfffff8) /* TODO: Falcom Classics */
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temp = 0;
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#endif
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cr2 = 0x4101; // CTRL/track
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cr3 = (curdir[temp].firstfad>>16)&0xff;
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cr4 = (curdir[temp].firstfad&0xffff);
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//cr2 = 0x4101; // CTRL/track
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//cr3 = (curdir[temp].firstfad>>16)&0xff;
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//cr4 = (curdir[temp].firstfad&0xffff);
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cr_standard_return(cd_stat);
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break;
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case 0x7200: // Get file system scope
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CDROM_LOG(("CD: Get file system scope\n"))
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hirqreg |= (CMOK|DRDY);
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hirqreg |= (CMOK|EFLS);
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cr2 = numfiles; // # of files in directory
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cr3 = 0x0100; // report directory held
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cr4 = firstfile; // first file id
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@ -177,7 +177,7 @@ READ16_HANDLER( saturn_vdp1_regs_r )
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case 0x12/2:
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case 0x14/2:
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case 0x16/2:
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printf ("cpu %s (PC=%08X) VDP1: Read from Registers, Offset %04x\n", space->device().tag(), cpu_get_pc(&space->device()), offset);
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printf ("cpu %s (PC=%08X) VDP1: Read from Registers, Offset %04x\n", space->device().tag(), cpu_get_pc(&space->device()), offset*2);
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break;
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}
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