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https://github.com/rkujawa/rk65c02.git
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ee826da6ec
- Add MMU API: translate and fault callbacks, begin/mark/end_update, TLB - Translation result: ok, paddr (32-bit), perms (R/W/X), fault_code, no_fill_tlb - Internal TLB (transparent); no_fill_tlb for context-dependent mappings - JIT: invalidate only code on changed pages; code-page refcount - Fault: EMUERROR, mmu_last_fault_*; resume by re-run after mapping update - doc/MMU.md: design goals, API reference, usage, guest contract, limits - examples/mmu_cart: C64-style bank switch (host + guest asm) - examples/mmu_multitasking: minimal task switch (host + guest asm) - test_mmu: MMU tests; bench_mmu: ns/insn for MMU configs - README: MMU feature and example links Made-with: Cursor
14 lines
606 B
ArmAsm
14 lines
606 B
ArmAsm
; =============================================================================
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; MMU Multitasking — Shared kernel (loaded at physical $8000)
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; =============================================================================
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; Assemble to mmu_multitasking_kernel.rom. The host loads this at $8000-$8FFF.
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; Virtual $8000-$FFFF is identity-mapped (shared); all tasks see this code.
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; =============================================================================
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.org 0x8000
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kernel:
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lda #0
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sta 0xFF00 ; request task 0 (host sets mapping, writes 0 to 0xFF01)
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jmp 0x1000 ; run task 0 at virtual 0x1000
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