Difference between revisions of "Keymap High Address Register"
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{{NextRegister | {{NextRegister | ||
|Number=$28 | |Number=$28 | ||
| − | |Readable= | + | |Readable=Yes |
|Writable=Yes | |Writable=Yes | ||
| − | |ShortDesc=High address of Keymap (MSB in bit 0) | + | |ShortDesc=High address of Keymap (MSB in bit 0), read palette value from $44 |
}} | }} | ||
| − | + | Write: | |
| + | bits 7:1 = Reserved, must be 0 | ||
| + | bit 0 = MSB keymap address | ||
| + | |||
| + | Read: | ||
| + | bits 7:0 = Stored palette value from {{NextRegNo|$44}} | ||
Revision as of 13:56, 11 November 2019
| Number | $28 |
|---|---|
| Readable | Yes |
| Writable | Yes |
| Short Description | High address of Keymap (MSB in bit 0), read palette value from $44 |
Write:
bits 7:1 = Reserved, must be 0 bit 0 = MSB keymap address
Read:
bits 7:0 = Stored palette value from Enhanced ULA Palette Extension ($44)