Big ups to Devia for this great Article!
Also, if you are hacking ROMs, please share the finished images for our less experienced members to enjoy
Keep it up!
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| Turbo Macro Pro v1.1 mod for Retro Replay 3.8b https://retrohackers.org/viewtopic.php?f=8&t=19 |
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| Author: | Devia [ Thu Jan 12, 2006 1:26 am ] |
| Post subject: | Turbo Macro Pro v1.1 mod for Retro Replay 3.8b |
A while back I got annoyed with the Turbo Assembler embedded in RR and wanted to see if I could exchange it for a macro edition. After some poking around together with Lotus, I came up with the following solution I just thought I'd share with you. Turbo Macro Pro v1.1 mod for Retro Replay 3.8b This text describes how to modify the Cyberpunx Retro Replay 3.8b cartridge software to load a custom assembler when invoking the TASS BASIC command. More specifically it shows how to replace the Turbo Assembler contained in the cartridge with Turbo Macro Pro v1.1 from Style (http://turbo.style64.org). Offsets refer to the Retro Replay 3.8b ROM Image and are also compatible with the newly available 3.8P patched version by hannenz. What TASS Does The code loaded and started when entering TASS in BASIC is located at offset $800F: Code: Offset OpCodes Mnemonics ---------------------------- $800F 4C 28 80 JMP $8028 --- $8028 A9 0B LDA #$0B $802a 8D 11 D0 STA $D011 $802d A2 6A LDX #$6A $802f BD 39 80 LDA $8039,X $8032 9D 00 04 STA $0400,X $8035 CA DEX $8036 10 F7 BPL $802F $8038 60 RTS This copies the code at offset $8039-$80A2 to memory address $0400 and jumps to $0400 upon RTS (stack manipulation) The code copied is: Code: Offset OpCodes Mnemonics ---------------------------- $8039 78 SEI $803a A9 37 LDA #$37 $803c 85 01 STA $01 $803e A9 90 LDA #$90 $8040 85 AF STA $AF $8042 A9 00 LDA #$00 $8044 85 AE STA $AE $8046 A9 88 LDA #$88 ;RR Bank 5 $8048 8D 00 DE STA $DE00 $804b A2 04 LDX #$04 $804d A0 00 LDY #$00 $804f B9 00 81 LDA $8100,Y $8052 91 AE STA ($AE),Y $8054 C8 INY $8055 D0 F8 BNE $804F $8057 EE 18 04 INC $0418 $805a E6 AF INC $AF $805c CA DEX $805d 10 F0 BPL $804F $805f A9 90 LDA #$90 ;RR Bank 6 $8061 8D 00 DE STA $DE00 $8064 A2 1C LDX #$1C $8066 A0 00 LDY #$00 $8068 B9 00 81 LDA $8100,Y $806b 91 AE STA ($AE),Y $806d C8 INY $806e D0 F8 BNE $8068 $8070 EE 31 04 INC $0431 $8073 E6 AF INC $AF $8075 CA DEX $8076 10 F0 BPL $8068 $8078 A9 98 LDA #$98 ;RR Bank 7 $807a 8D 00 DE STA $DE00 $807d A2 1C LDX #$1C $807f A0 00 LDY #$00 $8081 B9 00 81 LDA $8100,Y $8084 91 AE STA ($AE),Y $8086 C8 INY $8087 D0 F8 BNE $8081 $8089 EE 4A 04 INC $044A $808c E6 AF INC $AF $808e CA DEX $808f 10 F0 BPL $8081 $8091 A9 0A LDA #$0A $8093 8D 00 DE STA $DE00 $8096 A9 37 LDA #$37 $8098 85 01 STA $01 $809a A9 1B LDA #$1B $809c 8D 11 D0 STA $D011 $809f 58 CLI $80a0 4C 00 90 JMP $9000 Upon execution from address $0400 this code copies offsets:
$C100-$DDFF (RR bank 6) to memory location $9500-$B1FF $E100-$FDFF (RR bank 7) to memory location $B200-$CEFF How to Patch It Turbo Macro Pro v1.1 comes in different versions and takes up a bit more space than the old Turbo Assembler. The start address is $8000 instead of $9000 and its end address depends on what version you choose. All current versions can be contained within $8000-$CAFF though and it seems to store its variables at $CB00 so it should be OK to just modify the above code to copy the new Turbo Macro Pro into $8000-$CAFF and then jump to $8000. Fortunately there are still some free pages in the Retro Replay ROM image to contain the extra code. A couple of these are at offsets $7800 and $B700 So we can place the new Turbo Macro Pro image at the following locations:
$C100-$DDFF (RR bank 6) destination memory location $8700-$A3FF $E100-$FDFF (RR bank 7) destination memory location $A400-$C0FF $B700-$BDFF (RR bank 5) destination memory location $C100-$C7FF $7800-$7AFF (RR bank 3) destination memory location $C800-$CAFF The following code copies the new data to the new memory location: Code: Address OpCodes Mnemonics ---------------------------- $0400 78 SEI $0401 A9 37 LDA #$37 $0403 85 01 STA $01 $0405 A9 80 LDA #$80 $0407 85 AF STA $AF $0409 A9 00 LDA #$00 $040b 85 AE STA $AE $040d A9 88 LDA #$88 ;RR Bank 5 $040f 8D 00 DE STA $DE00 $0412 A2 06 LDX #$06 $0414 A0 00 LDY #$00 $0416 B9 00 81 LDA $8100,Y $0419 91 AE STA ($AE),Y $041b C8 INY $041c D0 F8 BNE $0416 $041e EE 18 04 INC $0418 $0421 E6 AF INC $AF $0423 CA DEX $0424 10 F0 BPL $0416 $0426 A9 90 LDA #$90 ;RR Bank 6 $0428 8D 00 DE STA $DE00 $042b A2 1C LDX #$1C $042d A0 00 LDY #$00 $042f B9 00 81 LDA $8100,Y $0432 91 AE STA ($AE),Y $0434 C8 INY $0435 D0 F8 BNE $042F $0437 EE 31 04 INC $0431 $043a E6 AF INC $AF $043c CA DEX $043d 10 F0 BPL $042F $043f A9 98 LDA #$98 ;RR Bank 7 $0441 8D 00 DE STA $DE00 $0444 A2 1C LDX #$1C $0446 A0 00 LDY #$00 $0448 B9 00 81 LDA $8100,Y $044b 91 AE STA ($AE),Y $044d C8 INY $044e D0 F8 BNE $0448 $0450 EE 4A 04 INC $044A $0453 E6 AF INC $AF $0455 CA DEX $0456 10 F0 BPL $0448 $0458 A9 88 LDA #$88 ;RR Bank 5 $045a 8D 00 DE STA $DE00 $045d A2 06 LDX #$06 $045f A0 00 LDY #$00 $0461 B9 00 97 LDA $9700,Y $0464 91 AE STA ($AE),Y $0466 C8 INY $0467 D0 F8 BNE $0461 $0469 EE 63 04 INC $0463 $046c E6 AF INC $AF $046e CA DEX $046f 10 F0 BPL $0461 $0471 A9 18 LDA #$18 ;RR Bank 3 $0473 8D 00 DE STA $DE00 $0476 A2 02 LDX #$02 $0478 A0 00 LDY #$00 $047a B9 00 98 LDA $9800,Y $047d 91 AE STA ($AE),Y $047f C8 INY $0480 D0 F8 BNE $047A $0482 EE 7C 04 INC $047C $0485 E6 AF INC $AF $0487 CA DEX $0488 10 F0 BPL $047A $048a A9 0A LDA #$0A $048c 8D 00 DE STA $DE00 $048f A9 37 LDA #$37 $0491 85 01 STA $01 $0493 A9 1B LDA #$1B $0495 8D 11 D0 STA $D011 $0498 58 CLI $0499 4C 00 80 JMP $8000 Note: The code is self-modifying and is here shown at its correct origin. This new code takes up a bit more space than the old one so we cannot just overwrite the old with the new. Instead we can place it somewhere else in the same RR bank. Offset $8121 fulfills our requirements. The code that copies the above code into address $0400 now needs to be changed as well. This is located at offset $8028. The new code looks like this: Code: Offset OpCodes Mnemonics ---------------------------- $8028 A9 0B LDA #$0B $802a 8D 11 D0 STA $D011 $802d A2 00 LDX #$00 $802f BD 21 81 LDA $8121,X ;New location $8032 9D 00 04 STA $0400,X $8035 E8 INX $8036 D0 F7 BNE $802F $8038 60 RTS Now all we need is to split the Turbo Macro Pro into 5 pieces. Use your favorite HEX Editor like this:
Part2: Take offset $0700-$23FF from TMP and put in $C100-$DDFF in RR ROM Part3: Take offset $2400-$40FF from TMP and put in $E100-$FDFF in RR ROM Part4: Take offset $4100-$47FF from TMP and put in $B700-$BDFF in RR ROM Part5: Take offset $4800-$4DFF from TMP and put in $7800-$7AFF in RR ROM Changing the Default Colors of TMP 1.1 In the event you whish to customize the default colors for TMP 1.1, they are located in the TMP binary at offset $0015 ($A115 in your newly patched ROM). The order of the colors is: Border, Screen, Command Line, Status Line, Text, Error Text, Marked Text. Happy modding, Devia/Ancients |
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| Author: | 65coupei6 [ Thu Jan 12, 2006 6:57 am ] |
| Post subject: | |
Can someone patch this in the NTSC version and compile it as a .bin for flashing? I suck at coding. |
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| Author: | Guest [ Thu Jan 12, 2006 8:12 am ] |
| Post subject: | |
boy, that's great!!! I ever dreamed of having the TMP integrated in RR-ROM. I'll try immediately! thanx a lot for this great info! i start loving this board! it was a great idea to start this forum! |
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| Author: | hannenz [ Thu Jan 12, 2006 9:20 am ] |
| Post subject: | |
tried it with TMP+REU/Style. It rocks!!! Great! |
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| Author: | RaveGuru [ Thu Jan 12, 2006 9:56 am ] |
| Post subject: | |
Big ups to Devia for this great Article! Also, if you are hacking ROMs, please share the finished images for our less experienced members to enjoy
Keep it up! |
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| Author: | Devia [ Thu Jan 12, 2006 10:47 am ] |
| Post subject: | |
Well.. the reason for not supplying any patched ROM binaries is because there're a lot of different versions of TMP and some people migth then start asking for ROMs with other versions in them. I guess one could write a patcher for it tho.. so people could choose whatever they wanted put in the ROM. I could upload the 3.8P ROM with the plain version of TMP if you guys want that? I'm a PAL user and honestly don't give NTSC much thought  ..is there an actual NTSC version of the RR ROM? I mean is it different from the PAL one?
If so, please upload that one here and I'll happily supply TMP patched versions of them both if that's what you guys want? oh and thnx for the feedback btw
/Devia |
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| Author: | Zone64 [ Thu Jan 12, 2006 11:07 am ] |
| Post subject: | |
Good work! Perhaps Style are willing to create a special Retro Replay version of Turbo Macro Pro. It really is the best Turbo Assembler out there, and I think people without a REU would like the ability to backup the source code in the Retro Replay 32 kb RAM. |
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| Author: | hannenz [ Thu Jan 12, 2006 12:27 pm ] |
| Post subject: | |
as far as i know the +REU mods of TMP backup almost the whole RAM ($08800-$FFFF), so the RAM-Contents before exiting TMP can easily be restored from the REU. So, to backup only the SRC in 32K would afford another concept. But the idea is good! (Luckily i _have_ a REU...) One should tell the guys at Style if they are interested in developping for the RR. Oh, and yes: TMP is the far best assembler ever seen on C64!! |
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| Author: | tnt/beyond force [ Thu Jan 12, 2006 3:14 pm ] |
| Post subject: | |
MMC64 could also be used for RAM backup. Accessing pre-allocated 64 KB file with 8.3 name in root dir is dead easy and doesn't take too much code. |
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| Author: | Frantic [ Thu Jan 12, 2006 3:48 pm ] |
| Post subject: | |
I suggested this to some involved Style-member a while ago, and if I remember correctly he said that he didn't own a RetroReplay. ...and by the way: If someone patches a rr38b rom with TMP+REU (and do not remove the SSGET-functionality or something like that) then please upload.
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| Author: | hannenz [ Mon Jun 26, 2006 10:13 pm ] |
| Post subject: | |
i'll upload the RR38P-PAL+TMPREU in the upload section! sorry for the late reply, just re-read this thread... |
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| Author: | Devia [ Thu Oct 12, 2006 11:02 pm ] |
| Post subject: | |
I just uploaded a 3.8P ROM including the newly released Turbo Macro Pro 1.2 along with an updated .txt version of this howto. |
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| Author: | RaveGuru [ Fri Oct 13, 2006 7:32 pm ] |
| Post subject: | |
Cool! Don't forget to add a comment in the News section 
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| Author: | Rio [ Tue Nov 13, 2007 9:50 am ] |
| Post subject: | |
Hello, i want to change another TASS version for my RR ROM. I've checked your current RR+Turbo Macro Pro v1.2.BIN, it works - but i need for my work another TASS version in ROM. ..so i tried to understand what you are doing, but i don't know right what i have to do in detail: First, i wan't to know how you patch it: do you have used a real C64 with RR or do you have used a disassembler on PC and reassembled with new changes? First i'd tried to reassemble RRRom3.8p on PC: Ok i got my asm code from bin, but i can't reassemble back, because it's too much size...(acme tolds me that) .. besides i really don't know, which code i've to put in which lines. I would be glad, if you can give me a bit help, so that i can go further fo it step for step... I'm really interessted to patch but i stagnated in some details.. Greets Rio. |
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| Author: | Devia [ Wed Nov 14, 2007 1:59 pm ] |
| Post subject: | |
The relevant code snippets were found and "disassembled" on the C64 using the Retro Replay ROM monitor. Then I simply wrote my own replacement code, assembled them to the correct addresses using some random assembler and patched them into the ROM file using a simple HEX editor. So, the "How to do it"-spun version of this article would look something like this: 1. Assemble the following code and strip the eventual 2 byte load address from the resulting PRG file: Code: *=$0400 start SEI LDA #$37 STA $01 LDA #$80 ;Destination start address hi STA $AF LDA #$00 ;Destination start address lo STA $AE LDA #$88 ;RR Bank 5 STA $DE00 LDX #$06 LDY #$00 .re01 ;Part1 LDA $8100,Y ;Copy ROM file offset $A100-$A7FF STA ($AE),Y INY BNE .re01 INC .re01+2 INC $AF DEX BPL .re01 LDA #$90 ;RR Bank 6 STA $DE00 LDX #$1C LDY #$00 .re02 ;Part2 LDA $8100,Y ;Copy ROM file offset $C100-$DDFF STA ($AE),Y INY BNE .re02 INC .re02+2 INC $AF DEX BPL .re02 LDA #$98 ;RR Bank 7 STA $DE00 LDX #$1C LDY #$00 .re03 ;Part3 LDA $8100,Y ;Copy ROM file offset $E100-$FDFF STA ($AE),Y INY BNE .re03 INC .re03+2 INC $AF DEX BPL .re03 LDA #$88 ;RR Bank 5 STA $DE00 LDX #$06 LDY #$00 .re04 ;Part4 LDA $9700,Y ;Copy ROM file offset $B700-$BDFF STA ($AE),Y INY BNE .re04 INC .re04+2 INC $AF DEX BPL .re04 LDA #$18 ;RR Bank 3 STA $DE00 LDX #$02 LDY #$00 .re05 ;Part5 LDA $9800,Y ;Copy ROM file offset $7800-$7AFF STA ($AE),Y INY BNE .re05 INC .re05+2 INC $AF DEX BPL .re05 LDA #$0A STA $DE00 LDA #$37 STA $01 LDA #$1B STA $D011 CLI JMP $8000 ;Jump to $8000 - duh! 2. Place the result in the RR ROM file at offset $8121 - If you modify this code, make sure the result does not take up more than 223 bytes of space. To modify it to match your own TASS version you might need to read and understand the code in order to change it to suit your needs. 3. Assemble the following code and strip the eventual 2 byte load address from the resulting PRG file: Code: *=$1234 ;irrellevant
start lda #$0b sta $d011 ldx #$00 .re01 lda $8121,x sta $0400,x inx bne .re01 rts 4. Place the result in the RR ROM file at offset $8028 - This code may not take up more than 17 bytes!!! - but you should not have any need to modify it in this case. (This is the code that copies the previous code to $0400 and executes it) 5. Strip any eventual load address from your TASS binary and split it up into separate files of sizes matching the "holes" in the ROM you're going to place them in. The "holes" in the ROM file that I use in the above code are at the following file offsets: Part1 - $A100-$A7FF - 1792 bytes Part2 - $C100-$DDFF - 7424 bytes Part3 - $E100-$FDFF - 7424 bytes Part4 - $B700-$BDFF - 1792 bytes Part5 - $7800-$7AFF - 768 bytes A total of 19200 bytes - if you need more, you'll have to find the free space yourself
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