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32 lines
994 B
Plaintext
32 lines
994 B
Plaintext
ZZRCC has no real ROM. It has a single 512K RAM chip. The first
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256K of the RAM chip is loaded from the CF card. This 256K is
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treated like ROM by RomWBW. The remainder of the RAM (256K) is
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treated like RAM by RomWBW.
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Because of the memory constraints, notice that there is no RAM Disk,
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only a ROM disk. If you perform a ROM boot to an OS, the A: drive
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will be the ROM disk and will not be writable. Booting a ROM OS
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on this system is not typical since the system has a CF card by
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definition.
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Bank ROM RAM RAM
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---- --- --- ---
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0 HBIOS (IMG)
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1 ROMLDR+MON+CP/M2+ZSYS
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2 FTH+BAS+TBAS+PLAY+USR
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3 RESERVED
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4 ROMDISK
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5 ROMDISK
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6 ROMDISK
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7 ROMDISK
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8 BUF (CPM3) BUF (CPM3)
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9 BUF (CPM3) BUF (CPM3)
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A BUF (CPM3) BUF (CPM3)
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B BUF (CPM3) BUF (CPM3)
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C AUX (CPM3) TPA (CPM3)
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D HBIOS (EXEC) HBIOS (EXEC)
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E TPA-LO OS (CPM3)
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F COMMON (TPA-HI) COMMON (TPA-HI)
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--WBW 6:40 PM 2/16/2022 |