Lexicon - Revision history

Aoineko at 12:39, 23 May 2026

2026-05-23T12:39:54Z

Aoineko at 11:22, 23 May 2026

2026-05-23T11:22:04Z

Aoineko: /* M */

2026-05-23T11:13:45Z

‎M

Aoineko at 11:13, 23 May 2026

2026-05-23T11:13:34Z

Aoineko: /* M */

2026-05-23T11:12:48Z

‎M

Aoineko at 11:11, 23 May 2026

2026-05-23T11:11:23Z

Aoineko at 22:13, 13 February 2024

2024-02-13T22:13:31Z

Aoineko at 22:06, 13 February 2024

2024-02-13T22:06:56Z

Aoineko: Created page with "== B == * '''Bank''' (mapper): A chunk of memory (8 or 16 KB) managed by a register that allow to select what part of the mapped ROM (segment) is visible in the given bank. Fo..."

2024-02-13T21:57:33Z

Created page with "== B == * '''Bank''' (mapper): A chunk of memory (8 or 16 KB) managed by a register that allow to select what part of the mapped ROM (segment) is visible in the given bank. Fo..."

New page

== B ==
* '''Bank''' (mapper): A chunk of memory (8 or 16 KB) managed by a register that allow to select what part of the mapped ROM (segment) is visible in the given bank. For 8 KB mappers, there is 2 banks per page and for 16 KB one, there is 1 bank per page1.

== M ==
* '''Memory space''': The total memory address space visible by the Z80 (64 KB from 0000h to FFFFh)

== P ==
* '''Page''' (memory): A quarter of the memory space (16 KB). The page number is defined by the 2 higher bits of the address. MSX allow to select an given slot/subslot to be visible in each page.

== S ==
* '''Segment''' (mapper): A chunk of mapped ROM (8 or 16 KB) that can be selected into a given bank.

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 == B ==
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 * '''Page''' (memory): A quarter of the memory space (16 KB). The page number is defined by the 2 higher bits of the address. MSX allow to select an given slot/subslot to be visible in each page.
 == S ==
@@ Line 30: / Line 41: @@
 * '''PSG''': The programmable sound generator (PSG) is the MSX audio standard. All MSX computers are therefore equipped with a compatible chip, usually an AY-3-8910. It allows the generation of square waves across three channels, the application of envelopes, and the generation of noise.

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 == C ==
-* '''CPU''': The central processor unit, is the processor that executes instructions of the program, such as arithmetic, logic, controlling, and input/output (I/O) operations. See '''Z80'''.
+* '''CPU''': The central processor unit (CPU), is the processor that executes instructions of the program, such as arithmetic, logic, controlling, and input/output (I/O) operations. See '''Z80'''.
 == M ==
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 * '''Segment''' (mapper): A chunk of mapped ROM (8 or 16 KB) that can be selected into a given bank.

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 == M ==
-* '''Mapper''': A device that contains one or more registers that allow to select the chunk part of memory that is visible through the pages where the device is selected. These registers are generally accessible either via I/O ports, or via write access to given addresses.
+* '''Mapper''': A device that contains one or more registers that allow to select the chunk of memory that is visible through the pages where the device is selected. These registers are generally accessible either via I/O ports, or via write access to given addresses.
 * '''Mapped-RAM''': A device with a mapper that allow to select chunk of the RAM (called 'segment') to be visible in each mapper's address blocs (called 'bank').

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 == M ==
-* '''Mapper''': A device that contains one or more registers that allow to select the small part of a big memory space that is visible through the pages where the device is selected. These registers are generally accessible either via I/O ports, or via write access to given addresses.
+* '''Mapper''': A device that contains one or more registers that allow to select the chunk part of memory that is visible through the pages where the device is selected. These registers are generally accessible either via I/O ports, or via write access to given addresses.
 * '''Mapped-RAM''': A device with a mapper that allow to select chunk of the RAM (called 'segment') to be visible in each mapper's address blocs (called 'bank').

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 == M ==
-* '''Mapper''': A device that contains one or more registers that allow to select the memory accessible through the pages where the device is selected. These registers are generally accessible either via I/O ports, or via write access to given addresses.
+* '''Mapper''': A device that contains one or more registers that allow to select the small part of a big memory space that is visible through the pages where the device is selected. These registers are generally accessible either via I/O ports, or via write access to given addresses.
 * '''Mapped-RAM''': A device with a mapper that allow to select chunk of the RAM (called 'segment') to be visible in each mapper's address blocs (called 'bank').

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 * '''Mapped-ROM''': A device with a mapper that allow to select chunk of the ROM (called 'segment') to be visible in each mapper's address blocs (called 'bank').
 * '''MegaROM''': A ROM of 128 KB or more (1048576 bits, or 1 mega-bit, hence the name MegaROM). All MegaROM are Mapped-ROM.
-* '''Memory space''': The total memory address space visible by the Z80 (64 KB from 0000h to FFFFh).
+* '''Memory space''': The total memory address space visible by the Z80 (64 KB from 0x0000 to 0xFFFF).
 == P ==