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vtech.pulkomandy.tk https://vtech.pulkomandy.tk/ 2024-03-19T11:35:03+00:00 vtech.pulkomandy.tk https://vtech.pulkomandy.tk/ https://vtech.pulkomandy.tk/lib/tpl/arctic/images/favicon.ico text/html 2023-12-31T16:49:38+00:00 pulkomandy (pulkomandy@undisclosed.example.com) instruction_encoding - [ALU instructions] https://vtech.pulkomandy.tk/doku.php?id=instruction_encoding&rev=1704037778&do=diff The instructions are 16 bit words. Most instructions use a single word, however, some of them use a second word to store an immediate 16-bit value. The general format is as follows: Bits 15-12 11-9 8-6 5-3 2-0 ContentsOpcode0 text/html 2023-06-05T16:50:06+00:00 simer (simer@undisclosed.example.com) controllers - [Checksum/keepalive] https://vtech.pulkomandy.tk/doku.php?id=controllers&rev=1685976606&do=diff Controller port 6 pin mini DIN (like PS/2 keyboards and mouse). It is a serial port at 4800 baud, 8N1. Pinout (using the standard numbering for mini-DIN connectors) : * VCC * CTS (from V.Smile) * Tx (from V.Smile) * GND * Rx (from controller) text/html 2023-05-29T19:40:57+00:00 pulkomandy (pulkomandy@undisclosed.example.com) 04_idle_mergedbytes.png - created https://vtech.pulkomandy.tk/doku.php?image=04_idle_mergedbytes.png&ns=&rev=1685382057&tab_details=history&mediado=diff&do=media <img src="https://vtech.pulkomandy.tk/lib/exe/fetch.php?w=500&h=237&t=1685382057&amp;tok=31fdca&amp;media=04_idle_mergedbytes.png" alt="04_idle_mergedbytes.png" /> text/html 2023-04-23T11:36:24+00:00 pulkomandy (pulkomandy@undisclosed.example.com) development_tools - [C compilers] https://vtech.pulkomandy.tk/doku.php?id=development_tools&rev=1682242584&do=diff C compilers Official compiler SunPlus released sources for the C compiler. It doesn't include the assembler and is based on GCC 2.95 so quite hard to compile: <https://github.com/vsmile-dev/unsp-gcc> * µ'nSP IDE is the official IDE for the CPU used. It can still be downloaded from GeneralPlus website - text/html 2023-04-23T11:27:51+00:00 pulkomandy (pulkomandy@undisclosed.example.com) homebrew https://vtech.pulkomandy.tk/doku.php?id=homebrew&rev=1682242071&do=diff * <https://github.com/vsmile-dev/vsmile-rom> - Early work when no assembler was available. It seems to run on emulators but not real hardware? * <https://github.com/bmx/vsmilestuff/tree/main/examples/hello> - Hello world showing minimal init of the PPU and video output, using un-asm. * <https://github.com/bmx/vsmilestuff/tree/main/examples/awwsum> - another minimal Hello world example using un-asm. * <https://github.com/sp1187/vsmile-demos> - Small examples using text/html 2023-04-23T11:24:19+00:00 pulkomandy (pulkomandy@undisclosed.example.com) links https://vtech.pulkomandy.tk/doku.php?id=links&rev=1682241859&do=diff * <https://github.com/vsmile-dev> - The github org with all the things we're doing * <https://vtech.fandom.com/wiki/VTech_Wiki> - A less technical oriented wiki about VTech products * <https://www.generalplus.com> - The SPG2xx CPU manufacturer * <https://hackmii.com/2010/04/sunplus-the-biggest-chip-company-youve-never-heard-of/> - The blog post that started it all * <https://bitbucket.org/SpritesMind/workspace/projects/VSMIL> VSmile BIOS disassembly using Ghidra, and another hello world… text/html 2023-04-16T10:15:32+00:00 pulkomandy (pulkomandy@undisclosed.example.com) memory_map - [External bus configuration] https://vtech.pulkomandy.tk/doku.php?id=memory_map&rev=1681632932&do=diff Start End Description 0x000000 0x0027FF RAM 0x002800 0x002FFF PPU 0x003000 0x0037FF Sound 0x003D00 0x003DFF IO 0x003E00 0x003E03 DMA External memory starts at 0x4000. It can be mapped to the internal ROM and the two possible chips in the cartridges. text/html 2022-11-12T14:57:34+00:00 pulkomandy (pulkomandy@undisclosed.example.com) cpu - [Registers] https://vtech.pulkomandy.tk/doku.php?id=cpu&rev=1668261454&do=diff Sources of information Instruction set documentation archived from “unSP Programmer's Guide” PDF from the unSP IDE installation - [local copy]. A good overview can also be found in [ this document]. CPU The V-Smile processor is a Sunplus µ'nSP implementing version 1.1 of the ISA (source: this is how the SPG200 projects in µ'nSP IDE are configured). text/html 2022-11-11T15:33:30+00:00 pulkomandy (pulkomandy@undisclosed.example.com) io - [ROM and cartridge] https://vtech.pulkomandy.tk/doku.php?id=io&rev=1668177210&do=diff This information was extracted from the V.Smile Motion schematics which was (accidentally?) published by the FCC with the certification for the console. Local copy of the document: Port A The use of Port A changes a bit on various generations of machines text/html 2022-08-17T18:50:38+00:00 simer (simer@undisclosed.example.com) unsp_isa-1.2.pdf - created https://vtech.pulkomandy.tk/doku.php?image=unsp_isa-1.2.pdf&ns=&rev=1660755038&tab_details=history&mediado=diff&do=media text/html 2022-06-26T17:23:39+00:00 simer (simer@undisclosed.example.com) unspide_v4.0.1.zip - created https://vtech.pulkomandy.tk/doku.php?image=unspide_v4.0.1.zip&ns=&rev=1656257019&tab_details=history&mediado=diff&do=media text/html 2022-06-26T14:22:45+00:00 simer (simer@undisclosed.example.com) unsp_programmer_s_guide.pdf - created https://vtech.pulkomandy.tk/doku.php?image=unsp_programmer_s_guide.pdf&ns=&rev=1656246165&tab_details=history&mediado=diff&do=media text/html 2021-08-26T21:20:34+00:00 pulkomandy (pulkomandy@undisclosed.example.com) fcc:vsmile-motion-schematics.pdf - created https://vtech.pulkomandy.tk/doku.php?image=fcc%3Avsmile-motion-schematics.pdf&ns=fcc&rev=1630005634&tab_details=history&mediado=diff&do=media text/html 2021-08-26T17:52:13+00:00 pulkomandy (pulkomandy@undisclosed.example.com) sunplus:sunplus_spce1600.pdf - created https://vtech.pulkomandy.tk/doku.php?image=sunplus%3Asunplus_spce1600.pdf&ns=sunplus&rev=1629993133&tab_details=history&mediado=diff&do=media text/html 2021-08-26T17:51:58+00:00 pulkomandy (pulkomandy@undisclosed.example.com) sunplus:sunplus_uart.png - created https://vtech.pulkomandy.tk/doku.php?image=sunplus%3Asunplus_uart.png&ns=sunplus&rev=1629993118&tab_details=history&mediado=diff&do=media <img src="https://vtech.pulkomandy.tk/lib/exe/fetch.php?w=500&h=81&t=1629993118&amp;tok=298d38&amp;media=sunplus:sunplus_uart.png" alt="sunplus:sunplus_uart.png" /> text/html 2021-08-26T17:51:58+00:00 pulkomandy (pulkomandy@undisclosed.example.com) sunplus:sunplus_timer.png - created https://vtech.pulkomandy.tk/doku.php?image=sunplus%3Asunplus_timer.png&ns=sunplus&rev=1629993118&tab_details=history&mediado=diff&do=media <img src="https://vtech.pulkomandy.tk/lib/exe/fetch.php?w=500&h=359&t=1629993118&amp;tok=906b2c&amp;media=sunplus:sunplus_timer.png" alt="sunplus:sunplus_timer.png" /> text/html 2021-08-26T17:51:58+00:00 pulkomandy (pulkomandy@undisclosed.example.com) sunplus:sunplus_sprites.png - created https://vtech.pulkomandy.tk/doku.php?image=sunplus%3Asunplus_sprites.png&ns=sunplus&rev=1629993118&tab_details=history&mediado=diff&do=media <img src="https://vtech.pulkomandy.tk/lib/exe/fetch.php?w=412&h=454&t=1629993118&amp;tok=3ace75&amp;media=sunplus:sunplus_sprites.png" alt="sunplus:sunplus_sprites.png" /> text/html 2021-08-26T17:51:58+00:00 pulkomandy (pulkomandy@undisclosed.example.com) sunplus:sunplus_sio.png - created https://vtech.pulkomandy.tk/doku.php?image=sunplus%3Asunplus_sio.png&ns=sunplus&rev=1629993118&tab_details=history&mediado=diff&do=media <img src="https://vtech.pulkomandy.tk/lib/exe/fetch.php?w=500&h=176&t=1629993118&amp;tok=0896ae&amp;media=sunplus:sunplus_sio.png" alt="sunplus:sunplus_sio.png" /> text/html 2021-08-26T17:51:58+00:00 pulkomandy (pulkomandy@undisclosed.example.com) sunplus:sunplus_pwm.png - created https://vtech.pulkomandy.tk/doku.php?image=sunplus%3Asunplus_pwm.png&ns=sunplus&rev=1629993118&tab_details=history&mediado=diff&do=media <img src="https://vtech.pulkomandy.tk/lib/exe/fetch.php?w=500&h=93&t=1629993118&amp;tok=c0574e&amp;media=sunplus:sunplus_pwm.png" alt="sunplus:sunplus_pwm.png" /> text/html 2021-08-26T17:51:57+00:00 pulkomandy (pulkomandy@undisclosed.example.com) sunplus:sunplus_io.png - created https://vtech.pulkomandy.tk/doku.php?image=sunplus%3Asunplus_io.png&ns=sunplus&rev=1629993117&tab_details=history&mediado=diff&do=media <img src="https://vtech.pulkomandy.tk/lib/exe/fetch.php?w=500&h=287&t=1629993117&amp;tok=d061cf&amp;media=sunplus:sunplus_io.png" alt="sunplus:sunplus_io.png" />