Zero page
http://dbpedia.org/resource/Zero_page an entity of type: TelevisionShow
Die Zeropage (also wörtlich „Seite Null“) ist ein Teil des Adressraumes einer CPU, für den es eine kompaktere Darstellung von Adressen oder bestimmter Adressierungsmodi überhaupt erst gibt. Sie stellt keinen alternativen Adressraum wie z. B. beim Zilog Z8 oder beim Sharp SC61860 dar.
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The zero page or base page is the block of memory at the very beginning of a computer's address space; that is, the page whose starting address is zero. The size of a page depends on the context, and the significance of zero page memory versus higher addressed memory is highly dependent on machine architecture. For example, the Motorola 6800 and MOS Technology 6502 processor families treat the first 256 bytes of memory specially, whereas many other processors do not.
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Zeropage
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Zero page
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1101742
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1121342750
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y
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March 2020
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Die Zeropage (also wörtlich „Seite Null“) ist ein Teil des Adressraumes einer CPU, für den es eine kompaktere Darstellung von Adressen oder bestimmter Adressierungsmodi überhaupt erst gibt. Sie stellt keinen alternativen Adressraum wie z. B. beim Zilog Z8 oder beim Sharp SC61860 dar.
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The zero page or base page is the block of memory at the very beginning of a computer's address space; that is, the page whose starting address is zero. The size of a page depends on the context, and the significance of zero page memory versus higher addressed memory is highly dependent on machine architecture. For example, the Motorola 6800 and MOS Technology 6502 processor families treat the first 256 bytes of memory specially, whereas many other processors do not. Unlike more modern hardware, in the 1970s computer RAM was as fast as or faster than the CPU. Thus it made sense to have few registers and use the main memory as an extended pool of extra registers. In machines with a relatively wide 16-bit address bus and comparatively narrow 8-bit data bus, accessing zero page locations could be faster than accessing other locations. Zero page addressing now has mostly historical significance, since the developments in integrated circuit technology have made adding more registers to a CPU less expensive and CPU operations much faster than RAM accesses.
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11232