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Project Summary

GonTa Calculator is a new mobile computing platform. Currently it's virtualized, we have an emulator to test everything, but in the future we may test it in real hardware (using a fpga perhaps).

The platform itself was originally designed for a calculator with a lot of features, but it can also be used for domotics (using some GPIO to interface the real world) or to retro gaming.

Architecture specs:

16 Bit microprocessor with 16 bit address bus (it can address up to a total of 64KiB of linear memory, unless we use the flash memory as ram) 320x240 pixel black&white screen (has a framebuffer of 9600 bytes) Resistive touchscreen capable of tracking one point Sound controller capable of mixing up to 4 sounds. Vibrating motor for tactile feedback in games. UART to communicate with other devices (RS232-SPI-I2C) Flash memory of up to 4GB (32 Bit address bus) Built-in ROM and bootloader capable of loading a program from flash or serial.

The project itself is divided into four sections:

Documentation (Specs, CPU opcodes, etc) Emulator (WIP, done in c++, using SDL for graphics and audio) Assembler (WIP, capable of assembling a asm file) Disassembler (WIP, capable of translating an object file to its mnemonics)

Architecture plans:

Tags

assembler calculator cpu domotics emulator fpga gonta gontacalculator videogameconsole

In a Nutshell, gontacalc...

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