59:c7970b37736f
60:49d2d60054a1 61:9c2b0bd3083e
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2013-04-28 |
Paul Boddie |
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Added initial support for CPU address and data propagation. |
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ula.py
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58:751a7ca72c05
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2013-04-28 |
Paul Boddie |
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Added a note about a mechanism to allow more flexible colour output, marking the
palette definition section as an enhancement.
Made a minor fix in the RAM section. |
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ULA.txt
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57:fc68c722a834
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2013-03-10 |
Paul Boddie |
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Improved the assessment of various RAM ICs, adding other product details.
Moved references closer to the relevant sections. |
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ULA.txt
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56:b0163096b904
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2013-03-09 |
Paul Boddie |
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Added information on the RAM ICs and modern replacement parts. |
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ULA.txt
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55:36e18a580b52
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2013-02-21 |
Paul Boddie |
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Added enhancement clarifications to various headings along with a
cross-reference between palette blanking and display suspend functionality. |
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ULA.txt
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54:b2dc981a266a
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2013-01-06 |
Paul Boddie |
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Added more details about how palette data would be inverted in order to cause
colour flashing, along with a description of VDU 19 activities. |
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ULA.txt
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53:5d82dab6add3
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2013-01-06 |
Paul Boddie |
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Described how the inversion bitmap would be used to update each flashing colour. |
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ULA.txt
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52:575d8cc03fce
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2012-12-22 |
Paul Boddie |
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Fixed the description of flashing colours since all logical colours can be made
to flash by mapping any of them to physical colours 8 through 15, and only these
physical colours are able to support the flashing effect. |
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ULA.txt
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51:53cd92fd0b96
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2012-12-22 |
Paul Boddie |
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Added a note about flashing colours. |
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ULA.txt
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50:731d6b286df8
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2012-10-30 |
Paul Boddie |
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Modelled the state of the ULA with a collection of latches instead of a counter. |
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ula.py
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