AltairZ80: CPU changes no longer remove device memory maps #345
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When a device maps memory, changing the CPU's memory or CPU
configuration removes memory mapped by a device:
sim> set jadedd ena
sim> show cpu
CPU
64KB, NOITRAP, 8080, AZ80, STOPONHALT
NONBANKED, ALTAIRROM, VERBOSE,
0123456789ABCDEF0123456789ABCDEF0123456789ABCDEF0123456789ABCDEF [16k]
00000: WWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWW
04000: WWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWW
08000: WWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWW
0C000: WWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWMMMMWWWWWWWWWWWWMMMMWWWWWWWWWWWR,
0x[02 03 04 05 08 09 0A 10 11 12 13 14 15 16 17 18 19 28 29 2A 2B 32 33 43 A0 A1 A2 A3 A4 A5 A6 A7 FD FE FF]
MMU, NOSWITCHER, NOPO
sim> set cpu 24k
sim> show cpu
CPU
24KB, NOITRAP, 8080, AZ80, STOPONHALT
NONBANKED, ALTAIRROM, VERBOSE,
0123456789ABCDEF0123456789ABCDEF0123456789ABCDEF0123456789ABCDEF [16k]
00000: WWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWW
04000: WWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUU
08000: UUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUU
0C000: UUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUR,
0x[02 03 04 05 08 09 0A 10 11 12 13 14 15 16 17 18 19 28 29 2A 2B 32 33 43 A0 A1 A2 A3 A4 A5 A6 A7 FD FE FF]
MMU, NOSWITCHER, NOPO
sim>
This PR modifies cpu_clear() to no longer cause device memory maps
to be removed from the MDEF table when the following CPU commands
are executed.
CPU [NO]BANKED
CPU CLEARMEMORY
CPU [CHIP TYPE]
CPU [MEMORY SIZE]
sim> set jadedd ena
sim> show cpu
CPU
64KB, NOITRAP, 8080, AZ80, STOPONHALT
NONBANKED, ALTAIRROM, VERBOSE,
0123456789ABCDEF0123456789ABCDEF0123456789ABCDEF0123456789ABCDEF [16k]
00000: WWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWW
04000: WWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWW
08000: WWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWW
0C000: WWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWMMMMWWWWWWWWWWWWMMMMWWWWWWWWWWWR,
0x[02 03 04 05 08 09 0A 10 11 12 13 14 15 16 17 18 19 28 29 2A 2B 32 33 43 A0 A1 A2 A3 A4 A5 A6 A7 FD FE FF]
MMU, NOSWITCHER, NOPO
sim> set cpu 24k
sim> show cpu
CPU
24KB, NOITRAP, 8080, AZ80, STOPONHALT
NONBANKED, ALTAIRROM, VERBOSE,
0123456789ABCDEF0123456789ABCDEF0123456789ABCDEF0123456789ABCDEF [16k]
00000: WWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWW
04000: WWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUU
08000: UUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUU
0C000: UUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUMMMMUUUUUUUUUUUUMMMMUUUUUUUUUUUR,
0x[02 03 04 05 08 09 0A 10 11 12 13 14 15 16 17 18 19 28 29 2A 2B 32 33 43 A0 A1 A2 A3 A4 A5 A6 A7 FD FE FF]
MMU, NOSWITCHER, NOPO
sim>
|
Replaced by #347 |
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Changing the CPU's memory or CPU configuration currently removes memory mapped by a device:
Changing the CPU type or memory configuration should not change a device's configuration. This PR modifies cpu_clear() to no longer cause device memory maps to be removed from
MDEV mmu_table[]when the following CPU commands are executed: