bus

package

v0.0.0-...-dfe74e1 Latest Latest Go to latest Published: Jan 28, 2024 License: MIT Imports: 6 Imported by: 0

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const MAX_MEM_SIZE = 0xff_ffff + 1

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const PAGE_BITS = 4 // 4 - 0x10 bytes, 8 - 0x100 bytes, 10 - 0x400 bytes, 14 - 0x4000

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const PAGE_MASK = PAGE_SIZE - 1

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const PAGE_SIZE = 1 << PAGE_BITS

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const SEGMENTS = MAX_MEM_SIZE >> PAGE_BITS

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type Bus struct {
	EA    uint32 // last memory access - r/w
	Write bool   // is write op?
	// contains filtered or unexported fields
}

func New(name string) *Bus

func (b *Bus) Attach(mode int, mem emu.Memory, fn byte, start uint32, end uint32)

func (b *Bus) Read_8(mode byte, addr uint32) byte

func (b *Bus) Write_8(mode byte, addr uint32, val byte)