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| == BIOSF_UPLOAD ($C00546): Upload data to [[DRAM]] ==
| | The BIOSF_UPLOAD ($C00546) call copies data to the NeoGeo CD [[DRAM]]. |
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| |
|
| <pre>
| | The parameters are: |
| BIOS_UPSRC (32bit): Source (Long)
| |
| BIOS_UPDEST (32bit): Destination (Long)
| |
| BIOS_UPSIZE (32bit): Size (Long)
| |
| BIOS_UPZONE $10FEDA (8bit): Zone (Byte, 0=PRG, 1=FIX, 2=SPR, 3=Z80, 4=PCM, 5=PAT)
| |
| BIOS_UPBANK (8bit): Bank (Byte)
| |
| </pre>
| |
|
| |
|
| For FIX, Z80 (, PAT ?) and PCM upload, the destination has to be multiplied by 2 (8bit busses).
| | *{{BR|BIOS_UPSRC}} (longword): Data source address |
| The SPR bank size is 1MiB (4 banks), PCM bank size is 512KiB (4 banks). The other zones aren't banked.
| | *{{BR|BIOS_UPDEST}} (longword): Data destination address |
| | *{{BR|BIOS_UPSIZE}} (longword): Data size |
| | *{{BR|BIOS_UPZONE}} (byte): Zone/method, see below |
| | *{{BR|BIOS_UPBANK}} (byte): DRAM bank |
|
| |
|
| BIOS_UPDEST (and BIOS_UPSRC ?) is incremented by the size upon completion, which allows to do multiple consecutive uploads. | | When the call returns, BIOS_UPDEST points to the end of the copied data, allowing multiple consecutive uploads without setting the destination address again. |
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| ==Steps== | | =Banks= |
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|
| *$FF0004.w and $10FD80 are pushed
| | Some DRAM zones have banks: SPR has 4 banks (each 1MiB), PCM has 2 banks (each 512KiB). |
| *$FF0004.w = 1
| |
| *$10FD80=0, system mode
| |
| *BIOS_UPZONE anded with $F
| |
| *Jump table
| |
| *Subrout1
| |
| *Copydata
| |
| *BIOS_UPZONE anded with $F
| |
| *Jump table
| |
| *Subrout2
| |
| *Restore $10FD80.w and $FF0004.w
| |
|
| |
|
| ===Subrout1=== | | =Zones/methods= |
|
| |
|
| *BIOS_UPZONE=0: RTS
| | ==$00: Copy PRG words (DMA)== |
| *BIOS_UPZONE=1: $FF0129.b=0, $FF0105.b=5 (FIX set, upload type)
| | Loads word copy DMA microcode. |
| *BIOS_UPZONE=2: $FF0121.b=0, $FF0105.b=0, $FF01A1.b=UploadBank (SPR set, upload type)
| |
| *BIOS_UPZONE=3: $FF0127.b=0, $FF0105.b=4 (Z80 set, upload type)
| |
| *BIOS_UPZONE=4: $FF0123.b=0, $FF0105.b=1, $FF01A3.b=UploadBank (PCM set, upload type)
| |
| *BIOS_UPZONE=5: RTS
| |
| *BIOS_UPZONE=6: RTS
| |
| *BIOS_UPZONE=7: $FF0121.b=0, $FF0105.b=0, $FF01A1.b=UploadBank (SPR set, upload type)
| |
| *BIOS_UPZONE=8: RTS
| |
| *BIOS_UPZONE=9~F:RTS
| |
|
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|
| ==Subrout2=== | | ==$01: Copy Fix graphics bytes (DMA)== |
| *BIOS_UPZONE=0: RTS
| | Loads byte copy DMA microcode. Dest = Dest + Size * 2. |
| *BIOS_UPZONE=1: $FF0149.b=0 FIX unset
| |
| *BIOS_UPZONE=2: $FF0141.b=0 SPR unset
| |
| *BIOS_UPZONE=3: $FF0147.b=0 Z80 unset
| |
| *BIOS_UPZONE=4: $FF0143.b=0 PCM unset
| |
| *BIOS_UPZONE=5: RTS | |
| *BIOS_UPZONE=6: RTS
| |
| *BIOS_UPZONE=7: $FF0141.b=0 SPR unset
| |
| *BIOS_UPZONE=8: RTS
| |
| *BIOS_UPZONE=9~F:RTS
| |
|
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|
| ==Copydata== | | ==$02: Copy Sprite graphics words (DMA)== |
| *$FF016F.b=1 disable interrupts ?
| | Loads word copy DMA microcode. Copies over 1MiB are possible, the bank is incremented automatically. |
| *BIOS_UPZONE anded with $1F
| |
| *Jump table
| |
|
| |
|
| *BIOS_UPZONE=0:Upload PRG DMA
| | ==$03: Copy Z80 program bytes (DMA)== |
| Load word copy microcode
| | Loads byte copy DMA microcode. |
| Dest=size+dest
| |
| bsr LoadMicrocodeA0 ;0BEA6: 610000C8
| |
| moveq #0,d0 ;0BEAA: 7000
| |
| bsr DoDMAWordCopyBypass ;0BEAC: 61000038
| |
| *BIOS_UPZONE=1:Upload Fix DMA
| |
| Load byte copy microcode
| |
| bsr DoDMAWordCopy ;0BDDC: 61000102
| |
| Dest=Dest+(size*2)
| |
| *BIOS_UPZONE=2:Upload Srites DMA
| |
| Load word copy microcode
| |
| <pre>
| |
| move.l UploadSize(a5),32226(a5) ;0BD62: 2B6D7EFC7DE2
| |
| LAB_021A:
| |
| move.l 32226(a5),d0 ;0BD68: 202D7DE2
| |
| beq.s LAB_021C ;0BD6C: 675C
| |
| add.l UploadDest(a5),d0 ;0BD6E: D0AD7EF4
| |
| cmpi.l #$00100000,d0 ;0BD72: 0C8000100000
| |
| bls.s LAB_021B ;0BD78: 632E
| |
| move.l #$00100000,d0 ;0BD7A: 203C00100000
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| sub.l UploadDest(a5),d0 ;0BD80: 90AD7EF4
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| move.l d0,UploadSize(a5) ;0BD84: 2B407EFC
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| move.l 32226(a5),d1 ;0BD88: 222D7DE2
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| sub.l d0,d1 ;0BD8C: 9280
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| move.l d1,32226(a5) ;0BD8E: 2B417DE2
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| bsr DoDMAWordCopy ;0BD92: 6100014C
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| clr.l UploadDest(a5) ;0BD96: 42AD7EF4
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| addq.b #1,UploadBank(a5) ;0BD9A: 522D7EDB
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| move.b UploadBank(a5),EXT_023D ;0BD9E: 13ED7EDB00FF01A1
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| bra.s LAB_021A ;0BDA6: 60C0
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| LAB_021B:
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| bsr DoDMAWordCopy ;0BDA8: 61000136
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| move.l UploadDest(a5),d0 ;0BDAC: 202D7EF4
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| add.l UploadSize(a5),d0 ;0BDB0: D0AD7EFC
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| cmpi.l #$00100000,d0 ;0BDB4: 0C8000100000
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| bcs.s LAB_021C ;0BDBA: 650E
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| clr.l d0 ;0BDBC: 4280
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| addq.b #1,UploadBank(a5) ;0BDBE: 522D7EDB
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| move.b UploadBank(a5),EXT_023D ;0BDC2: 13ED7EDB00FF01A1
| |
| LAB_021C:
| |
| move.l d0,UploadDest(a5) ;0BDCA: 2B407EF4
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| rts ;0BDCE: 4E75
| |
| </pre>
| |
| *BIOS_UPZONE=3 Upload Z80 DMA
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|
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|
| lea MicrocodeByteCopy(pc),a0 ;0BE84: 41FA0214
| | The destination address must be multiplied by 2 (8bit bus) ? Size doesn't have to be multiplied, but has to be an even number ? |
| bsr LoadMicrocodeA0 ;0BE88: 610000E6
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| bsr DoDMAWordCopy ;0BE8C: 61000052
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| move.l UploadDest(a5),d0 ;0BE90: 202D7EF4
| |
| add.l UploadSize(a5),d0 ;0BE94: D0AD7EFC
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| add.l UploadSize(a5),d0 ;0BE98: D0AD7EFC
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| move.l d0,UploadDest(a5) ;0BE9C: 2B407EF4
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| rts ;0BEA0: 4E75
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|
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|
| *BIOS_UPZONE=4
| | ==$04: Copy PCM bytes (CPU)== |
| UploadCopyPCMMethod0:
| | Loads byte copy DMA microcode. |
| lea MicrocodeByteCopy(pc),a0 ;0BDF2: 41FA02A6
| |
| bsr LoadMicrocodeA0 ;0BDF6: 61000178
| |
| move.l UploadSize(a5),32226(a5) ;0BDFA: 2B6D7EFC7DE2
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| LAB_021E:
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| move.l 32226(a5),d0 ;0BE00: 202D7DE2
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| beq.s LAB_0221 ;0BE04: 6756
| |
| add.l d0,d0 ;0BE06: D080
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| add.l UploadDest(a5),d0 ;0BE08: D0AD7EF4
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| cmpi.l #$00100000,d0 ;0BE0C: 0C8000100000
| |
| bhi.s LAB_021F ;0BE12: 6208
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| move.l 32226(a5),UploadSize(a5) ;0BE14: 2B6D7DE27EFC
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| bra.s LAB_0220 ;0BE1A: 603C
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| LAB_021F:
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| move.l #$00100000,d0 ;0BE1C: 203C00100000
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| sub.l UploadDest(a5),d0 ;0BE22: 90AD7EF4
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| lsr.l #1,d0 ;0BE26: E288
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| move.l d0,UploadSize(a5) ;0BE28: 2B407EFC
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| move.l 32226(a5),d1 ;0BE2C: 222D7DE2
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| sub.l d0,d1 ;0BE30: 9280
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| move.l d1,32226(a5) ;0BE32: 2B417DE2
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| bsr DoByteCopy ;0BE36: 61000112
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| clr.l UploadDest(a5) ;0BE3A: 42AD7EF4
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| addq.b #1,UploadBank(a5) ;0BE3E: 522D7EDB
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| move.b UploadBank(a5),EXT_023E ;0BE42: 13ED7EDB00FF01A3
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| move.l UploadSrc(a5),d0 ;0BE4A: 202D7EF8
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| add.l UploadSize(a5),d0 ;0BE4E: D0AD7EFC
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| move.l d0,UploadSrc(a5) ;0BE52: 2B407EF8
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| bra.s LAB_021E ;0BE56: 60A8
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| LAB_0220:
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| bsr DoByteCopy ;0BE58: 610000F0
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| LAB_0221:
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| move.l UploadDest(a5),d0 ;0BE5C: 202D7EF4
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| add.l UploadSize(a5),d0 ;0BE60: D0AD7EFC
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| add.l UploadSize(a5),d0 ;0BE64: D0AD7EFC
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| cmpi.l #$00100000,d0 ;0BE68: 0C8000100000
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| bcs.s LAB_0222 ;0BE6E: 650E
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| clr.l d0 ;0BE70: 4280
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| addq.b #1,UploadBank(a5) ;0BE72: 522D7EDB
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| move.b UploadBank(a5),EXT_023E ;0BE76: 13ED7EDB00FF01A3
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| LAB_0222:
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| move.l d0,UploadDest(a5) ;0BE7E: 2B407EF4
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| rts ;0BE82: 4E75
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| *BIOS_UPZONE=5
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| UploadCopyPATMethod0&1:
| |
| move.b #$00,EXT_022D ;0BF98: 13FC000000FF0127 Z80 set
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| move.b #$04,EXT_0224 ;0BFA0: 13FC000400FF0105 Upload type
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| lea UPLOADZONE,a1 ;0BFA8: 43F900E00000
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| moveq #0,d0 ;0BFAE: 7000
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| move.b UploadBank(a5),d0 ;0BFB0: 102D7EDB
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| swap d0 ;0BFB4: 4840
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| lsl.l #4,d0 ;0BFB6: E988
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| or.l UploadDest(a5),d0 ;0BFB8: 80AD7EF4
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| lsr.l #8,d0 ;0BFBC: E088
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| move d0,30518(a5) ;0BFBE: 3B407736
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| movea.l UploadSrc(a5),a0 ;0BFC2: 206D7EF8
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| moveq #0,d0 ;0BFC6: 7000
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|
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|
| *BIOS_UPZONE=6
| | The destination address must be multiplied by 2 (8bit bus). Size doesn't have to be multiplied, but has to be an even number. Copies over 1MiB are possible, the bank is incremented automatically. |
| lea MicrocodeWordCopy(pc),a0 ;0BEBE: 41FA01BC
| |
| bsr LoadMicrocodeA0 ;0BEC2: 610000AC
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| move.l #$00400000,d0 ;0BEC6: 203C00400000
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| bsr DoDMAWordCopyBypass ;0BECC: 61000018
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| move.l UploadDest(a5),d0 ;0BED0: 202D7EF4
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| add.l UploadSize(a5),d0 ;0BED4: D0AD7EFC
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| move.l d0,UploadDest(a5) ;0BED8: 2B407EF4
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| rts ;0BEDC: 4E75
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| rts ;0BEDE: 4E75
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| *BIOS_UPZONE=7
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| move.l #$00E00000,d0 ;0BC5A: 203C00E00000
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| add.l UploadDest(a5),d0 ;0BC60: D0AD7EF4
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| movea.l d0,a1 ;0BC64: 2240
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| movea.l UploadSrc(a5),a0 ;0BC66: 206D7EF8
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| moveq #0,d0 ;0BC6A: 7000
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| move.l (a0)+,d7 ;0BC6C: 2E18
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| beq.s LAB_0218 ;0BC6E: 6738
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| LAB_0215:
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| move.l (a0)+,(a1)+ ;0BC70: 22D8
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| beq.s LAB_0216 ;0BC72: 6712
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| dbf d7,LAB_0215 ;0BC74: 51CFFFFA
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| move.l a1,d0 ;0BC78: 2009
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| subi.l #$00E00000,d0 ;0BC7A: 048000E00000
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| move.l d0,UploadDest(a5) ;0BC80: 2B407EF4
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| rts ;0BC84: 4E75
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| *BIOS_UPZONE=8
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| UploadCopyPRGMethod0:
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| lea MicrocodeWordCopy(pc),a0 ;0BEA2: 41FA01D8
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| bsr LoadMicrocodeA0 ;0BEA6: 610000C8
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| moveq #0,d0 ;0BEAA: 7000
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| bsr DoDMAWordCopyBypass ;0BEAC: 61000038
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| move.l UploadDest(a5),d0 ;0BEB0: 202D7EF4
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| add.l UploadSize(a5),d0 ;0BEB4: D0AD7EFC
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| move.l d0,UploadDest(a5) ;0BEB8: 2B407EF4
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| rts ;0BEBC: 4E75
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| *BIOS_UPZONE=9~F:RTS
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|
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|
| 00 C0 BD 0E
| | ==$05: Install [[PAT file]]== |
| 00 C0 BC B6
| | Notes: |
| 00 C0 BC 48
| | *10F736.l=((Bank*$10000)+Dest)/256 |
| 00 C0 BC F8
| | *10F736+Address/2 |
| 00 C0 BC CC
| |
| 00 C0 BF 98
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| 00 C0 BD 3A
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| 00 C0 BC 5A
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| 00 C0 BD 0E
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| 00 C0 BE DE
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| 00 C0 BE DE
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| 00 C0 BE DE
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| 00 C0 BE DE
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| 00 C0 BE DE
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| 00 C0 BE DE
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| 00 C0 BE DE
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|
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|
| *Watchdog kicked
| | ==$06: Copy palette words (DMA)== |
| *$FF016F.b=0 enable interrupts ?
| | Loads word copy DMA microcode. |
| | |
| | ==$07: Copy compressed sprite graphics (CPU)== |
| | The first longword's value indicates the size of the '''compressed''' data, BIOS_UPSIZE isn't used. |
| | When a longword zero is copied, the following longword indicates how many zero longwords to insert. |
| | |
| | This method allows compression of large transparent zones. Is it ever used by games ? |
| | |
| | ==$08: Copy PRG words (DMA)== |
| | Same as method $00. |
| | |
| | ==$10: Copy PRG longwords (CPU)== |
| | Size must be a multiple of 4. |
| | |
| | ==$11: Copy Fix graphics words (CPU)== |
| | The destination address must be multiplied by 2 (8bit bus). Size doesn't have to be multiplied, but has to be an even number. |
| | |
| | ==$12: Copy Sprite graphics longwords (CPU)== |
| | Size must be a multiple of 4. |
| | |
| | ==$13: Copy Z80 program bytes (CPU)== |
| | The destination address must be multiplied by 2 (8bit bus). Size doesn't have to be multiplied, but has to be an even number. |
| | |
| | ==$14: Copy PCM bytes (CPU)== |
| | The destination address must be multiplied by 2 (8bit bus). Size doesn't have to be multiplied, but has to be an even number. Copies over 1MiB are possible, the bank is incremented automatically. |
| | |
| | Difference with $04 ? |
| | |
| | ==$15: Install PAT file== |
| | Same as method $05. |
| | |
| | ==$16: Copy palette longwords (CPU)== |
| | Size must be a multiple of 4. |
| | |
| | ==$17: Copy compressed sprite graphics (CPU)== |
| | Same as method $07. |
| | |
| | ==$18: Copy PRG longwords (CPU)== |
| | Same as method $10. |
|
| |
|
| [[Category:BIOS calls]] | | [[Category:BIOS calls]] |
The BIOSF_UPLOAD ($C00546) call copies data to the NeoGeo CD DRAM.
The parameters are:
BIOS_UPSRC
($10FEF8
) (longword): Data source address
BIOS_UPDEST
($10FEF4
) (longword): Data destination address
BIOS_UPSIZE
($10FEFC
) (longword): Data size
BIOS_UPZONE
($10FEDA
) (byte): Zone/method, see below
BIOS_UPBANK
($10FEDB
) (byte): DRAM bank
When the call returns, BIOS_UPDEST points to the end of the copied data, allowing multiple consecutive uploads without setting the destination address again.
Banks
Some DRAM zones have banks: SPR has 4 banks (each 1MiB), PCM has 2 banks (each 512KiB).
Zones/methods
$00: Copy PRG words (DMA)
Loads word copy DMA microcode.
$01: Copy Fix graphics bytes (DMA)
Loads byte copy DMA microcode. Dest = Dest + Size * 2.
$02: Copy Sprite graphics words (DMA)
Loads word copy DMA microcode. Copies over 1MiB are possible, the bank is incremented automatically.
$03: Copy Z80 program bytes (DMA)
Loads byte copy DMA microcode.
The destination address must be multiplied by 2 (8bit bus) ? Size doesn't have to be multiplied, but has to be an even number ?
$04: Copy PCM bytes (CPU)
Loads byte copy DMA microcode.
The destination address must be multiplied by 2 (8bit bus). Size doesn't have to be multiplied, but has to be an even number. Copies over 1MiB are possible, the bank is incremented automatically.
Notes:
- 10F736.l=((Bank*$10000)+Dest)/256
- 10F736+Address/2
$06: Copy palette words (DMA)
Loads word copy DMA microcode.
$07: Copy compressed sprite graphics (CPU)
The first longword's value indicates the size of the compressed data, BIOS_UPSIZE isn't used.
When a longword zero is copied, the following longword indicates how many zero longwords to insert.
This method allows compression of large transparent zones. Is it ever used by games ?
$08: Copy PRG words (DMA)
Same as method $00.
$10: Copy PRG longwords (CPU)
Size must be a multiple of 4.
$11: Copy Fix graphics words (CPU)
The destination address must be multiplied by 2 (8bit bus). Size doesn't have to be multiplied, but has to be an even number.
$12: Copy Sprite graphics longwords (CPU)
Size must be a multiple of 4.
$13: Copy Z80 program bytes (CPU)
The destination address must be multiplied by 2 (8bit bus). Size doesn't have to be multiplied, but has to be an even number.
$14: Copy PCM bytes (CPU)
The destination address must be multiplied by 2 (8bit bus). Size doesn't have to be multiplied, but has to be an even number. Copies over 1MiB are possible, the bank is incremented automatically.
Difference with $04 ?
$15: Install PAT file
Same as method $05.
$16: Copy palette longwords (CPU)
Size must be a multiple of 4.
$17: Copy compressed sprite graphics (CPU)
Same as method $07.
$18: Copy PRG longwords (CPU)
Same as method $10.