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pearsoe

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About pearsoe

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    Space Invader
  1. Here's the Micro Innovations schematics. Micro Innovations 64K-256K Memory Expander.zip
  2. I've been trying load Pitfall 1 on the ADAM by loading the ROM image in to ADAM memory space starting at $8000, banking in OS7 and then jumping to $0000 to start the game but all I get is a black screen. Now this will work for most Coleco ROMs, ironically even Pitfall 2 will work, but not Pitfall 1. So I guess I am looking for some ideas on why it will work fine from the cartridge but not if loaded as described.
  3. This item always seems to be out of stock at arcadeshopper.com. Will they ever restock?
  4. I posted this on Facebook for Milli but thought I would also add it here for reference. Below is the source for the attached example that demonstrates the VDP NMI interrupt on the default Coleco ADAM memory configuration (32k RAM lower/32k RAM upper with EOS). It also happens to be my first Z80 assembler program so there's that. The program basically sets up the VDP and wedges the 66H address with the NMI routine which cycles the background color endlessly. A portion of the NMI code was taken from a template example but I can't recall the author so 'Thanks'. It was asssembled with tniasm and copied to block 0 on a DSK image. INTERRUPT.DSK FNAME "erictest4.bin" CPU Z80 ORG $c800 di jp nextord color: db 0h nextord: ld a,0c3h ld (066h),a ld hl,&nmi ld a,l ld (067h),a ld a,h ld (068h),a ld a,00h ld hl,$0000 ld de,$4000 call 0fd26h ;fill vram ld b,00h ld c,02h call 0fd20h ;write vdp register 0 ld b,01h ld c,0e0h call 0fd20h ;write vdp register 1 ld hl,0000h ;Pattern Generator Address (the font data) ld a,03h call 0fd29h ;initialize vram table 3 ld hl,0800h ;Pattern Name Table Address (the screen data) ld a,02h call 0fd29h ;initialize vram table 2 ld hl,1f80h ;Sprite Attribute Table ld a,00h call 0fd29h ;initialize vram table 0 ld hl,3800h ;Sprite Generator Table ld a,01h call 0fd29h ;initialize vram table 1 ld hl,2000h ;Pattern color table address ld a,04h call 0fd29h ;initialize vram table 4 ld b,07h ld c,09h call 0fd20h ;write vdp register 7 ei in a,(0bfh) loop: jp loop nmi: PUSH AF PUSH BC PUSH DE PUSH HL PUSH IX PUSH IY EX AF,AF' PUSH AF EXX PUSH BC PUSH DE PUSH HL ld hl,$c804 ld a,(hl) inc a ld (hl),a cp 15 jr nz,skip ld a,0h ld (hl),a skip: ld c,a ld b,07h call 0fd20h ;write vdp register 7 ;Now restore everything POP HL POP DE POP BC EXX POP AF EX AF,AF' POP IY POP IX POP HL POP DE POP BC ; in a,(0bfh) ; POP AF retn
  5. I have a MIB3 but never got cables with it. The docs are also incomplete and don't list all the pinouts for the serial port. If "The Evener" could provide pinouts for his cables end-to-end that would be worth documenting.
  6. Can you share specs (diagram/pictures) of the cable you are using from the MIB2 to the WiModem232? Is the serial port on the MIB2 the same as the MIB3? Also is that ADAMLink V you are using?
  7. Out of curiosity then, what is the purpose of that device? Have you seen one before?
  8. Thanks Dr. D and NIAD for your quick responses! @Dr. D - I've been enjoying reading your TWMCA articles. Your description of the boot block and how it is used with ADAM IDE HDs answered a lot of questions for me. The pattern data you mention, is there a document that describes how it is used/deciphered? Would it be in the CV Programmers Manual? http://www.colecovisionzone.com/page/coleco%20industries/programmers.html Regarding the LOGOS file, if the boot screen as described by NIAD for Electronic Flashcard Maker is contained solely in the Block 0 boot block, is the purpose of the LOGOS file in SmartFiler to generate the other image of the papers being filed that is shown when SmartFiler starts? Also, in 2017 what would be the easiest way to extract a boot block and transfer it to a PC for disassembly/analysis?
  9. So is this device on eBay what is needed to make the Go-No-Go program work? https://www.ebay.com/itm/Colecovision-Coleco-Adam-System-Final-Test-Module-Serial-A0511885-Model-2405/161904705474?_trkparms=aid%3D111001%26algo%3DREC.SEED%26ao%3D1%26asc%3D49454%26meid%3D4a808d51de604cb1902e2a79e646d96b%26pid%3D100675%26rk%3D4%26rkt%3D15%26sd%3D112587500719&_trksid=p2481888.c100675.m4236&_trkparms=pageci%253A10e5c72e-c99a-11e7-b718-74dbd180cfdd%257Cparentrq%253Abd07b6f315f0abc1d5c5aff2fffe1d12%257Ciid%253A1
  10. I have this question that has been bugging me. Is there a ROM routine that prints the ADAM logo on the screen when you start an ADAM program or is it drawn on the screen by a routine in the boot block of each ADAM program? I was looking at the SmartFiler boot block disassembly here http://ww.theadamresource.com/articles/misc/sfboot.asm and the routine starting at $C85C seems to display the initial boot screen. Is it using the data at $C900 to draw the ADAM logo? Maybe a newbie question but I'd like to know. Is there some kind of template that one would use to create their own boot screen?
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