129 lines
4.7 KiB
Org Mode
129 lines
4.7 KiB
Org Mode
* machine
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:PROPERTIES:
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:CUSTOM-ID: machine
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:END:
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** memory
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:PROPERTIES:
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:CUSTOM-ID: memory
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:END:
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one large uint32 array
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** types
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:PROPERTIES:
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:CUSTOM-ID: types
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:END:
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real (fixed point numbers)| Q16.16 number
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int (integer) i32
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nat (unsigned integer) u32
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3-3-2 bit rgb
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:PROPERTIES:
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:CUSTOM-ID: bit-rgb
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:END:
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rrrg ggbb xxxx yyyy
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triangles
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textures
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devices
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:PROPERTIES:
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:CUSTOM-ID: devices
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:END:
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** screen
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:PROPERTIES:
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:CUSTOM-ID: screen
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:END:
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default screen is a single 2 triangle square face with a single dynamic
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texture that can be drawn on it
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** keyboard
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:PROPERTIES:
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:CUSTOM-ID: keyboard
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:END:
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ASCIIUTF8 encoded values
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** mousejoystick
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:PROPERTIES:
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:CUSTOM-ID: mousejoystick
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:END:
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Theoretically a modern controller could be mapped into 3 mousejoystick
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devices
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A nes controller could be mapped onto 1 mousejoystick device
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x axis -> J1 -> J2 -> Dpad leftright y axis -> J1 -> J2 -> Dpad updown
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button 1 -> A -> t1 -> select button 2 -> B -> t2 -> start button 3 -> X
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-> b2 -> "meta button like controller start" button 4 -> Y -> b2 ->
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unused
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xxxx yyyy 1234
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x (4 bits) y (4 bits) 1 is button 1 pressed? 2 is button 2 pressed? 3 is
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button 3 pressed? 4 is button 4 pressed?
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** soundmusic
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:PROPERTIES:
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:CUSTOM-ID: soundmusic
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:END:
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This one is going to be the hardest most likely| but its prolly going to
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be something like the backend dac for ORCA.
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** networkfilesystem
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:PROPERTIES:
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:CUSTOM-ID: networkfilesystem
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:END:
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9p filesystemnetwork by default.
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Have an easy way to network.
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** opcodes
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|----------------+------------------------------------------------------|
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| opcode | description |
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|----------------+------------------------------------------------------|
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| HALT | terminate execution |
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| ADD-INT | dest = src1 + src2 |
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| SUB-INT | dest = src1 - src2 |
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| MUL-INT | dest = src1 src2 |
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| DIV-INT | dest = src1 src2 |
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| JEQ-INT | jump to address dest if src1 as int == src2 as int |
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| JGT-INT | jump to address dest if src1 as int > src2 as int |
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| JLT-INT | jump to address dest if src1 as int < src2 as int |
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| JLE-INT | jump to address dest if src1 as int <= src2 as int |
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| JGE-INT | jump to address dest if src1 as int >= src2 as int |
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| INT-TO-REAL | dest = src1 as f32 |
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| ADD-UINT | dest = src1 + src2 |
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| SUB-UINT | dest = src1 - src2 |
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| MUL-UINT | dest = src1 src2 |
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| DIV-UINT | dest = src1 src2 |
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| JEQ-UINT | jump to address dest if src1 as int == src2 as uint |
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| JGT-UINT | jump to address dest if src1 as int > src2 as uint |
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| JLT-UINT | jump to address dest if src1 as int < src2 as uint |
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| JLE-UINT | jump to address dest if src1 as int <= src2 as uint |
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| JGE-UINT | jump to address dest if src1 as int >= src2 as uint |
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| UINT-TO-REAL | dest = src1 as f32 |
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| ADD-REAL | dest = src1 + src2 |
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| SUB-REAL | dest = src1 - src2 |
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| MUL-REAL | dest = src1 src2 |
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| DIV-REAL | dest = src1 src2 |
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| JEQ-REAL | jump to address dest if src1 as real == src2 as real |
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| JGE-REAL | jump to address dest if src1 as real >= src2 as real |
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| JGT-REAL | jump to address dest if src1 as real > src2 as real |
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| JLT-REAL | jump to address dest if src1 as real < src2 as real |
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| JLE-REAL | jump to address dest if src1 as real <= src2 as real |
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| REAL-TO-INT | dest = src1 as int |
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| REAL-TO-UINT | dest = src1 as int |
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| MOV | dest = src1 |
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| JMP | jump to address src1 unconditionally |
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| INT-TO-STRING | dest = src1 as str |
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| UINT-TO-STRING | dest = src1 as str |
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| REAL-TO-STRING | dest = src1 as str |
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| READ-STRING | dest = read as str |
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| PRINT-STRING | write src1 to stdout |
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| CMP-STRING | dest = src1 as str == src2 as str |
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| | |
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|----------------+------------------------------------------------------|
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