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hp9845: small improvements to 9845/TACO docs

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This commit is contained in:
fulivi 2016-02-17 11:20:49 +01:00
parent 63b58daec9
commit 74371049b1
2 changed files with 11 additions and 3 deletions
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8
src/devices/machine/hp_taco.cpp
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@ -124,6 +124,14 @@
// * I tried to fill the (many) gaps on chip behavior with "sensible" solutions. I could only
// validate my solutions by running the original firmware in MAME, though (no real hw at hand).
//
// TODOs/issues:
// * Some code cleanup
// * Handling of tape holes seems to be wrong: test "C" of test ROM only works partially
// * Find out what is read from register R6
// * Handle device_image_interface::call_display to show state of tape
// * Find more info on TACO chips (does anyone with a working 9845 or access to internal HP docs want to
// help me here, please?)
//
#include "emu.h"
#include "hp_taco.h"

6
src/mame/drivers/hp9845.cpp
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@ -16,12 +16,12 @@
// - LPU & PPU ROMs
// - LPU & PPU RAMs
// - Text mode screen
// - Keyboard (most of keys)
// - Keyboard
// - T15 tape drive
// What's not yet in:
// - Beeper
// - Rest of keyboard
// - Graphic screen
// - Tape drive (this needs some heavy RE of the TACO chip)
// - Better naming of tape drive image (it's now "magt", should be "t15")
// - Better documentation of this file
// - Software list to load optional ROMs
// What's wrong: