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TITLEPrzerwanie zewnętrzne i semaphore FromISR
VER.v00.01
DATETIME2026-07-19T00:00:00+02:00
PROJECTFreestanding C nad FreeRTOS
SERIESFreeRTOS C
CARD07/15
SHEET1/7
SUBJ.Inf.
PROG.—
CORE—
SCOPE—
LEVEL—
POS.—
GITEA UUID530724e2-6774-5b17-9912-b3f5c243c15dCARD UUIDa6da1075-8d1f-5615-b0e6-0fc33e59e1e3AUTHOR  M. Pabiszczak
GITEA  https://zsl-gitea.mpabi.pl/edu-freertos-c/lab-rv32i-freertos-c-isr-semaphore
HTML  https://dce7fb9d-7b2f-5d49-96a2-3a30d3070b84.mpabi.pl/a6da1075-8d1f-5615-b0e6-0fc33e59e1e3
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Uczeń rozdziela task context od ISR context, używa API FromISR i dowodzi natychmiastowego przełączenia do wyższego taska.

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Prawdziwe wejście IRQ5 testbencha wywołuje machine external interrupt. Port zapisuje pełny kontekst i przechodzi na xISRStack. ISR czyści źródło, daje binary semaphore i wywołuje portYIELD_FROM_ISR. Waiter priority 3 działa przed powrotem do stimulus priority 2.

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Hazard3 MEI, xISRStack, xSemaphoreGiveFromISR i yield

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TITLEPrzerwanie zewnętrzne i semaphore FromISR
VER.v00.01
DATETIME2026-07-19T00:00:00+02:00
PROJECTFreestanding C nad FreeRTOS
SERIESFreeRTOS C
CARD07/15
SHEET2/7
SUBJ.Inf.
PROG.—
CORE—
SCOPE—
LEVEL—
POS.—
GITEA UUID530724e2-6774-5b17-9912-b3f5c243c15dCARD UUIDa6da1075-8d1f-5615-b0e6-0fc33e59e1e3AUTHOR  M. Pabiszczak
GITEA  https://zsl-gitea.mpabi.pl/edu-freertos-c/lab-rv32i-freertos-c-isr-semaphore
HTML  https://dce7fb9d-7b2f-5d49-96a2-3a30d3070b84.mpabi.pl/a6da1075-8d1f-5615-b0e6-0fc33e59e1e3
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", "content_html": "", "tasks": [], "assets": [ { "label": "fig:a1-context", "logical_label": "fig:a1-context", "figure_number": 1, "caption": "A1 CONTEXT — IRQ5 do high-priority waitera. — część 1/1 (r1 c1)", "alt": "Warstwy realnego external IRQ.", "href": "figures/a1-context.svg", "source_href": "figures/a1-context.puml", "width": 1.0, "kind": "diagram", "interactive": { "kind": "uml-class", "storage_key": "fc07-a1-context-tile-1", "title": "A1 · granice interrupt path", "task": { "id": "task01", "label": "Task01 · ISR semaphore" }, "block": { "id": "a1", "label": "A1 CONTEXT", "description": "Od fizycznej linii IRQ do odblokowanego taska." }, "phases": [ { "id": "context", "label": "SOURCE / CPU / PORT / ISR / TASK", "steps": [ { "id": "source", "number": 1, "label": "testbench drives a real IRQ line", "mode": "RUN", "event_id": "E03", "strategy_ref": "run.trap", "svg_label": "01", "code_ref": "src/tasks/task01_isr_semaphore.c:156", "snapshot_ref": "task01.before-trigger", "description": "MMIO store ustawia bit wejścia CPU.", "evidence": "IRQ mask bit 5.", "strategy": { "id": "task01/a1/context/source", "kind": "run", "action": "replay", "expected_observations": [ "mcause=0x8000000b", "ISR SP różny od task SP", "source=0" ], "assertions": [ "real MEI", "full context saved" ], "evidence_fields": [ "mcause", "SP", "PC", "IRQ register", "timestamp" ], "prerequisites": [ "Hazard3 online", "IRQ5 enabled", "czysta RAM" ], "layout": [ "mcause", "mepc", "xISRStack", "source register" ], "commands": [ "print/x g_fc07.mcause", "print/x g_fc07.isr_sp", "print g_fc07.irq_source_after_clear" ], "template_id": "run.trap" } }, { "id": "hazard", "number": 2, "label": "Hazard3 raises machine external interrupt", "mode": "RUN", "event_id": "E04", "strategy_ref": "run.trap", "svg_label": "02", "code_ref": "src/tasks/task01_isr_semaphore.c:103", "snapshot_ref": "task01.isr-entry", "description": "To nie jest tick hook.", "evidence": "mcause=MEI.", "strategy": { "id": "task01/a1/context/hazard", "kind": "run", "action": "replay", "expected_observations": [ "mcause=0x8000000b", "ISR SP różny od task SP", "source=0" ], "assertions": [ "real MEI", "full context saved" ], "evidence_fields": [ "mcause", "SP", "PC", "IRQ register", "timestamp" ], "prerequisites": [ "Hazard3 online", "IRQ5 enabled", "czysta RAM" ], "layout": [ "mcause", "mepc", "xISRStack", "source register" ], "commands": [ "print/x g_fc07.mcause", "print/x g_fc07.isr_sp", "print g_fc07.irq_source_after_clear" ], "template_id": "run.trap" } }, { "id": "port", "number": 3, "label": "port saves full task context", "mode": "CODE", "strategy_ref": "code.irq-contract", "svg_label": "03", "code_ref": "src/common/hazard3_freertos_traps.S:24", "description": "Vector skacze do official trap handler.", "evidence": "xISRStack.", "strategy": { "id": "task01/a1/context/port", "kind": "code", "action": "open", "expected_observations": [ "external vector trafia do pełnego trap path", "ISR API ma osobny suffix" ], "assertions": [ "source clear poprzedza give", "port ma 256-word ISR stack" ], "evidence_fields": [ "code_ref", "symbol", "ABI" ], "prerequisites": [ "źródło FC07" ], "layout": [ "vector bridge", "FreeRTOS trap", "application ISR", "config" ], "commands": [ "rg -n 'isr_external_irq|application_interrupt|GiveFromISR|SET_IRQ' src include" ], "template_id": "code.irq-contract" } }, { "id": "isr", "number": 4, "label": "application ISR clears and gives", "mode": "RUN", "event_id": "E06", "strategy_ref": "run.handoff", "svg_label": "04", "code_ref": "src/tasks/task01_isr_semaphore.c:99", "snapshot_ref": "task01.give-yield", "description": "API FromISR ustawia xHPW.", "evidence": "source=0, xHPW=1.", "strategy": { "id": "task01/a1/context/isr", "kind": "run", "action": "replay", "expected_observations": [ "xHPW=pdTRUE", "E07 poprzedza E08" ], "assertions": [ "waiter value widzi stimulus_after=0", "stimulus po resume widzi waiter_ran=1" ], "evidence_fields": [ "state", "actor", "value", "PC/SP" ], "prerequisites": [ "waiter Blocked na binary semaphore" ], "layout": [ "semaphore", "xHPW", "waiter/stimulus TCB", "event order" ], "commands": [ "print g_fc07.higher_priority_task_woken", "print g_fc07_events" ], "template_id": "run.handoff" } }, { "id": "waiter", "number": 5, "label": "higher waiter consumes semaphore", "mode": "RUN", "event_id": "E07", "strategy_ref": "run.handoff", "svg_label": "05", "code_ref": "src/tasks/task01_isr_semaphore.c:135", "snapshot_ref": "task01.waiter-runs", "description": "Context restore wybiera waiter TCB.", "evidence": "stimulus_after=0.", "strategy": { "id": "task01/a1/context/waiter", "kind": "run", "action": "replay", "expected_observations": [ "xHPW=pdTRUE", "E07 poprzedza E08" ], "assertions": [ "waiter value widzi stimulus_after=0", "stimulus po resume widzi waiter_ran=1" ], "evidence_fields": [ "state", "actor", "value", "PC/SP" ], "prerequisites": [ "waiter Blocked na binary semaphore" ], "layout": [ "semaphore", "xHPW", "waiter/stimulus TCB", "event order" ], "commands": [ "print g_fc07.higher_priority_task_woken", "print g_fc07_events" ], "template_id": "run.handoff" } } ] } ] }, "tile": { "index": 1, "count": 1, "row": 1, "column": 1, "rows": 1, "columns": 1, "x": 0.0, "y": 0.0, "width": 498.0, "height": 520.0, "full_x": 0.0, "full_y": 0.0, "full_width": 498.0, "full_height": 520.0, "page_width": 940.0, "page_height": 560.0, "overview": true, "step_ids": [ "hazard", "isr", "port", "source", "waiter" ] }, "diagram_title": "A1 · granice interrupt path", "diagram_block_label": "A1 CONTEXT", "diagram_description": "Od fizycznej linii IRQ do odblokowanego taska.", "diagram_phase_labels": [ "SOURCE / CPU / PORT / ISR / TASK" ] } ], "steps": [], "spread_group": "", "spread_label": "A1 CONTEXT — IRQ5 do high-priority waitera.", "spread_columns": 1, "spread_index": 1, "spread_count": 1, "page_orientation": "landscape" }, { "id": "section-2-content", "index": 2, "title": "A3 — Dispatch", 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TITLEPrzerwanie zewnętrzne i semaphore FromISR
VER.v00.01
DATETIME2026-07-19T00:00:00+02:00
PROJECTFreestanding C nad FreeRTOS
SERIESFreeRTOS C
CARD07/15
SHEET3/7
SUBJ.Inf.
PROG.—
CORE—
SCOPE—
LEVEL—
POS.—
GITEA UUID530724e2-6774-5b17-9912-b3f5c243c15dCARD UUIDa6da1075-8d1f-5615-b0e6-0fc33e59e1e3AUTHOR  M. Pabiszczak
GITEA  https://zsl-gitea.mpabi.pl/edu-freertos-c/lab-rv32i-freertos-c-isr-semaphore
HTML  https://dce7fb9d-7b2f-5d49-96a2-3a30d3070b84.mpabi.pl/a6da1075-8d1f-5615-b0e6-0fc33e59e1e3
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", "content_html": "", "tasks": [], "assets": [ { "label": "fig:a3-dispatch", "logical_label": "fig:a3-dispatch", "figure_number": 2, "caption": "A3 DISPATCH — vector, trap, FromISR i restore. — część 1/1 (r1 c1)", "alt": "Dispatch external IRQ w porcie FreeRTOS.", "href": "figures/a3-dispatch.svg", "source_href": "figures/a3-dispatch.puml", "width": 1.0, "kind": "diagram", "interactive": { "kind": "uml-class", "storage_key": "fc07-a3-dispatch-tile-1", "title": "A3 · external interrupt dispatch", "task": { "id": "task01", "label": "Task01 · ISR semaphore" }, "block": { "id": "a3", "label": "A3 DISPATCH", "description": "Pełny context save umożliwia yield z ISR." }, "phases": [ { "id": "dispatch", "label": "VECTOR / SAVE / ISR / RESTORE", "steps": [ { "id": "vector", "number": 1, "label": "external vector enters port", "mode": "CODE", "strategy_ref": "code.irq-contract", "svg_label": "01", "code_ref": "src/common/hazard3_freertos_traps.S:24", "description": "Strong symbol zastępuje weak handler testbencha.", "evidence": "isr_external_irq.", "strategy": { "id": "task01/a3/dispatch/vector", "kind": "code", "action": "open", "expected_observations": [ "external vector trafia do pełnego trap path", "ISR API ma osobny suffix" ], "assertions": [ "source clear poprzedza give", "port ma 256-word ISR stack" ], "evidence_fields": [ "code_ref", "symbol", "ABI" ], "prerequisites": [ "źródło FC07" ], "layout": [ "vector bridge", "FreeRTOS trap", "application ISR", "config" ], "commands": [ "rg -n 'isr_external_irq|application_interrupt|GiveFromISR|SET_IRQ' src include" ], "template_id": "code.irq-contract" } }, { "id": "trap", "number": 2, "label": "trap saves full context", "mode": "RUN", "event_id": "E04", "strategy_ref": "run.trap", "svg_label": "02", "code_ref": "vendor/FreeRTOS-Kernel/portable/GCC/RISC-V/portASM.S:356", "snapshot_ref": "task01.isr-entry", "description": "Interrupted SP jest zapisany w TCB.", "evidence": "mepc/mstatus/registers.", "strategy": { "id": "task01/a3/dispatch/trap", "kind": "run", "action": "replay", "expected_observations": [ "mcause=0x8000000b", "ISR SP różny od task SP", "source=0" ], "assertions": [ "real MEI", "full context saved" ], "evidence_fields": [ "mcause", "SP", "PC", "IRQ register", "timestamp" ], "prerequisites": [ "Hazard3 online", "IRQ5 enabled", "czysta RAM" ], "layout": [ "mcause", "mepc", "xISRStack", "source register" ], "commands": [ "print/x g_fc07.mcause", "print/x g_fc07.isr_sp", "print g_fc07.irq_source_after_clear" ], "template_id": "run.trap" } }, { "id": "stack", "number": 3, "label": "handler runs on xISRStack", "mode": "RUN", "event_id": "E04", "strategy_ref": "run.trap", "svg_label": "03", "code_ref": "src/tasks/task01_isr_semaphore.c:104", "snapshot_ref": "task01.isr-entry", "description": "ISR SP różni się od obu tasków.", "evidence": "isr_sp.", "strategy": { "id": "task01/a3/dispatch/stack", "kind": "run", "action": "replay", "expected_observations": [ "mcause=0x8000000b", "ISR SP różny od task SP", "source=0" ], "assertions": [ "real MEI", "full context saved" ], "evidence_fields": [ "mcause", "SP", "PC", "IRQ register", "timestamp" ], "prerequisites": [ "Hazard3 online", "IRQ5 enabled", "czysta RAM" ], "layout": [ "mcause", "mepc", "xISRStack", "source register" ], "commands": [ "print/x g_fc07.mcause", "print/x g_fc07.isr_sp", "print g_fc07.irq_source_after_clear" ], "template_id": "run.trap" } }, { "id": "app", "number": 4, "label": "application handler owns device protocol", "mode": "RUN", "event_id": "E05", "strategy_ref": "run.trap", "svg_label": "04", "code_ref": "src/tasks/task01_isr_semaphore.c:107", "snapshot_ref": "task01.source-clear", "description": "Najpierw clear source.", "evidence": "register=0.", "strategy": { "id": "task01/a3/dispatch/app", "kind": "run", "action": "replay", "expected_observations": [ "mcause=0x8000000b", "ISR SP różny od task SP", "source=0" ], "assertions": [ "real MEI", "full context saved" ], "evidence_fields": [ "mcause", "SP", "PC", "IRQ register", "timestamp" ], "prerequisites": [ "Hazard3 online", "IRQ5 enabled", "czysta RAM" ], "layout": [ "mcause", "mepc", "xISRStack", "source register" ], "commands": [ "print/x g_fc07.mcause", "print/x g_fc07.isr_sp", "print g_fc07.irq_source_after_clear" ], "template_id": "run.trap" } }, { "id": "give", "number": 5, "label": "FromISR unblocks waiter", "mode": "RUN", "event_id": "E06", "strategy_ref": "run.handoff", "svg_label": "05", "code_ref": "src/tasks/task01_isr_semaphore.c:111", "snapshot_ref": "task01.give-yield", "description": "Binary semaphore staje się available.", "evidence": "xHPW=1.", "strategy": { "id": "task01/a3/dispatch/give", "kind": "run", "action": "replay", "expected_observations": [ "xHPW=pdTRUE", "E07 poprzedza E08" ], "assertions": [ "waiter value widzi stimulus_after=0", "stimulus po resume widzi waiter_ran=1" ], "evidence_fields": [ "state", "actor", "value", "PC/SP" ], "prerequisites": [ "waiter Blocked na binary semaphore" ], "layout": [ "semaphore", "xHPW", "waiter/stimulus TCB", "event order" ], "commands": [ "print g_fc07.higher_priority_task_woken", "print g_fc07_events" ], "template_id": "run.handoff" } }, { "id": "yield", "number": 6, "label": "yield selects waiter TCB", "mode": "RUN", "event_id": "E06", "strategy_ref": "run.handoff", "svg_label": "06", "code_ref": "src/tasks/task01_isr_semaphore.c:118", "snapshot_ref": "task01.give-yield", "description": "Switch następuje przed mret.", "evidence": "vTaskSwitchContext.", "strategy": { "id": "task01/a3/dispatch/yield", "kind": "run", "action": "replay", "expected_observations": [ "xHPW=pdTRUE", "E07 poprzedza E08" ], "assertions": [ "waiter value widzi stimulus_after=0", "stimulus po resume widzi waiter_ran=1" ], "evidence_fields": [ "state", "actor", "value", "PC/SP" ], "prerequisites": [ "waiter Blocked na binary semaphore" ], "layout": [ "semaphore", "xHPW", "waiter/stimulus TCB", "event order" ], "commands": [ "print g_fc07.higher_priority_task_woken", "print g_fc07_events" ], "template_id": "run.handoff" } }, { "id": "restore", "number": 7, "label": "port restores selected task", "mode": "RUN", "event_id": "E07", "strategy_ref": "run.handoff", "svg_label": "07", "code_ref": "src/tasks/task01_isr_semaphore.c:135", "snapshot_ref": "task01.waiter-runs", "description": "CPU nie wraca od razu do stimulus.", "evidence": "E07 before E08.", "strategy": { "id": "task01/a3/dispatch/restore", "kind": "run", "action": "replay", "expected_observations": [ "xHPW=pdTRUE", "E07 poprzedza E08" ], "assertions": [ "waiter value widzi stimulus_after=0", "stimulus po resume widzi waiter_ran=1" ], "evidence_fields": [ "state", "actor", "value", "PC/SP" ], "prerequisites": [ "waiter Blocked na binary semaphore" ], "layout": [ "semaphore", "xHPW", "waiter/stimulus TCB", "event order" ], "commands": [ "print g_fc07.higher_priority_task_woken", "print g_fc07_events" ], "template_id": "run.handoff" } } ] } ] }, "tile": { 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TITLEPrzerwanie zewnętrzne i semaphore FromISR
VER.v00.01
DATETIME2026-07-19T00:00:00+02:00
PROJECTFreestanding C nad FreeRTOS
SERIESFreeRTOS C
CARD07/15
SHEET4/7
SUBJ.Inf.
PROG.—
CORE—
SCOPE—
LEVEL—
POS.—
GITEA UUID530724e2-6774-5b17-9912-b3f5c243c15dCARD UUIDa6da1075-8d1f-5615-b0e6-0fc33e59e1e3AUTHOR  M. Pabiszczak
GITEA  https://zsl-gitea.mpabi.pl/edu-freertos-c/lab-rv32i-freertos-c-isr-semaphore
HTML  https://dce7fb9d-7b2f-5d49-96a2-3a30d3070b84.mpabi.pl/a6da1075-8d1f-5615-b0e6-0fc33e59e1e3
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"evidence": "event count 1.", "strategy": { "id": "task01/a5/flow/config", "kind": "run", "action": "replay", "expected_observations": [ "mcause=0x8000000b", "ISR SP różny od task SP", "source=0" ], "assertions": [ "real MEI", "full context saved" ], "evidence_fields": [ "mcause", "SP", "PC", "IRQ register", "timestamp" ], "prerequisites": [ "Hazard3 online", "IRQ5 enabled", "czysta RAM" ], "layout": [ "mcause", "mepc", "xISRStack", "source register" ], "commands": [ "print/x g_fc07.mcause", "print/x g_fc07.isr_sp", "print g_fc07.irq_source_after_clear" ], "template_id": "run.trap" } }, { "id": "wait", "number": 2, "label": "waiter reaches empty take", "mode": "RUN", "event_id": "E02", "strategy_ref": "run.handoff", "svg_label": "02", "code_ref": "src/tasks/task01_isr_semaphore.c:130", "snapshot_ref": "task01.waiter-block", "description": "Następnie przechodzi do Blocked.", "evidence": "waiter_ran=0.", "strategy": { "id": "task01/a5/flow/wait", "kind": "run", "action": "replay", "expected_observations": [ "xHPW=pdTRUE", "E07 poprzedza E08" ], "assertions": [ "waiter value widzi stimulus_after=0", "stimulus po resume widzi waiter_ran=1" ], "evidence_fields": [ "state", "actor", "value", "PC/SP" ], "prerequisites": [ "waiter Blocked na binary semaphore" ], "layout": [ "semaphore", "xHPW", "waiter/stimulus TCB", "event order" ], "commands": [ "print g_fc07.higher_priority_task_woken", "print g_fc07_events" ], "template_id": "run.handoff" } }, { "id": "trigger", "number": 3, "label": "stimulus commits before trigger", "mode": "RUN", "event_id": "E03", "strategy_ref": "run.trap", "svg_label": "03", "code_ref": "src/tasks/task01_isr_semaphore.c:155", "snapshot_ref": "task01.before-trigger", "description": "Kontrolowany punkt przed MMIO.", "evidence": "stimulus_after=0.", "strategy": { "id": "task01/a5/flow/trigger", "kind": "run", "action": "replay", "expected_observations": [ "mcause=0x8000000b", "ISR SP różny od task SP", "source=0" ], "assertions": [ "real MEI", "full context saved" ], "evidence_fields": [ "mcause", "SP", "PC", "IRQ register", "timestamp" ], "prerequisites": [ "Hazard3 online", "IRQ5 enabled", "czysta RAM" ], "layout": [ "mcause", "mepc", "xISRStack", "source register" ], "commands": [ "print/x g_fc07.mcause", "print/x g_fc07.isr_sp", "print g_fc07.irq_source_after_clear" ], "template_id": "run.trap" } }, { "id": "entry", "number": 4, "label": "MEI enters xISRStack", "mode": "RUN", "event_id": "E04", "strategy_ref": "run.trap", "svg_label": "04", "code_ref": "src/tasks/task01_isr_semaphore.c:103", "snapshot_ref": "task01.isr-entry", "description": "Prawdziwy async trap.", "evidence": "mcause and SP.", "strategy": { "id": "task01/a5/flow/entry", "kind": "run", "action": "replay", "expected_observations": [ "mcause=0x8000000b", "ISR SP różny od task SP", "source=0" ], "assertions": [ "real MEI", "full context saved" ], "evidence_fields": [ "mcause", "SP", "PC", "IRQ register", "timestamp" ], "prerequisites": [ "Hazard3 online", "IRQ5 enabled", "czysta RAM" ], "layout": [ "mcause", "mepc", "xISRStack", "source register" ], "commands": [ "print/x g_fc07.mcause", "print/x g_fc07.isr_sp", "print g_fc07.irq_source_after_clear" ], "template_id": "run.trap" } }, { "id": "clear", "number": 5, "label": "ISR clears hardware source", "mode": "RUN", "event_id": "E05", "strategy_ref": "run.trap", "svg_label": "05", "code_ref": "src/tasks/task01_isr_semaphore.c:107", "snapshot_ref": "task01.source-clear", "description": "Zapobiega retrigger.", "evidence": "source=0.", "strategy": { "id": "task01/a5/flow/clear", "kind": "run", "action": "replay", "expected_observations": [ "mcause=0x8000000b", "ISR SP różny od task SP", "source=0" ], "assertions": [ "real MEI", "full context saved" ], "evidence_fields": [ "mcause", "SP", "PC", "IRQ register", "timestamp" ], "prerequisites": [ "Hazard3 online", "IRQ5 enabled", "czysta RAM" ], "layout": [ "mcause", "mepc", "xISRStack", "source register" ], "commands": [ "print/x g_fc07.mcause", "print/x g_fc07.isr_sp", "print g_fc07.irq_source_after_clear" ], "template_id": "run.trap" } }, { "id": "give", "number": 6, "label": "give requests a switch", "mode": "RUN", "event_id": "E06", "strategy_ref": "run.handoff", "svg_label": "06", "code_ref": "src/tasks/task01_isr_semaphore.c:111", "snapshot_ref": "task01.give-yield", "description": "Wyższy task stał się Ready.", "evidence": "xHPW=pdTRUE.", "strategy": { "id": "task01/a5/flow/give", "kind": "run", "action": "replay", "expected_observations": [ "xHPW=pdTRUE", "E07 poprzedza E08" ], "assertions": [ "waiter value widzi stimulus_after=0", "stimulus po resume widzi waiter_ran=1" ], "evidence_fields": [ "state", "actor", "value", "PC/SP" ], "prerequisites": [ "waiter Blocked na binary semaphore" ], "layout": [ "semaphore", "xHPW", "waiter/stimulus TCB", "event order" ], "commands": [ "print g_fc07.higher_priority_task_woken", "print g_fc07_events" ], "template_id": "run.handoff" } }, { "id": "waiter", "number": 7, "label": "waiter runs before stimulus", "mode": "RUN", "event_id": "E07", "strategy_ref": "run.handoff", "svg_label": "07", "code_ref": "src/tasks/task01_isr_semaphore.c:135", "snapshot_ref": "task01.waiter-runs", "description": "Natychmiastowy efekt yield.", "evidence": "stimulus_after=0.", "strategy": { "id": "task01/a5/flow/waiter", "kind": "run", "action": "replay", "expected_observations": [ "xHPW=pdTRUE", "E07 poprzedza E08" ], "assertions": [ "waiter value widzi stimulus_after=0", "stimulus po resume widzi waiter_ran=1" ], "evidence_fields": [ "state", "actor", "value", "PC/SP" ], "prerequisites": [ "waiter Blocked na binary semaphore" ], "layout": [ "semaphore", "xHPW", "waiter/stimulus TCB", "event order" ], "commands": [ "print g_fc07.higher_priority_task_woken", "print g_fc07_events" ], "template_id": "run.handoff" } }, { "id": "resume", "number": 8, "label": "interrupted stimulus resumes", "mode": "RUN", "event_id": "E08", "strategy_ref": "run.handoff", "svg_label": "08", "code_ref": "src/tasks/task01_isr_semaphore.c:158", "snapshot_ref": "task01.stimulus-resumes", "description": "Dopiero po zakończeniu waitera.", "evidence": "waiter_ran=1.", "strategy": { "id": "task01/a5/flow/resume", "kind": "run", "action": "replay", "expected_observations": [ "xHPW=pdTRUE", "E07 poprzedza E08" ], "assertions": [ "waiter value widzi stimulus_after=0", "stimulus po resume widzi waiter_ran=1" ], "evidence_fields": [ "state", "actor", "value", "PC/SP" ], "prerequisites": [ "waiter Blocked na binary semaphore" ], "layout": [ "semaphore", "xHPW", "waiter/stimulus TCB", "event order" ], "commands": [ "print g_fc07.higher_priority_task_woken", "print g_fc07_events" ], "template_id": "run.handoff" } }, { "id": "pass", "number": 9, "label": "verifier commits PASS", "mode": "RUN", "event_id": "E09", "strategy_ref": "run.pass", "svg_label": "09", "code_ref": "src/tasks/task01_isr_semaphore.c:186", "snapshot_ref": "task01.pass", "description": "Sprawdza order, stacks i cause.", "evidence": "PASS=1, digest.", "strategy": { "id": "task01/a5/flow/pass", "kind": "run", "action": "replay", "expected_observations": [ "PASS=1", "nine sequential markers" ], "assertions": [ "three distinct stack contexts", "digest stable" ], "evidence_fields": [ "PASS", "digest", "source blob", "ELF hash", "timestamp" ], "prerequisites": [ "E01–E08 committed" ], "layout": [ "nine records", "stack separation", "digest" ], "commands": [ "print g_fc07_pass", "print g_fc07.digest" ], "template_id": "run.pass" } } ] } ] }, "tile": { "index": 1, "count": 1, "row": 1, "column": 1, "rows": 1, "columns": 1, "x": 0.0, "y": 0.0, "width": 906.0, "height": 422.0, "full_x": 0.0, "full_y": 0.0, "full_width": 906.0, "full_height": 422.0, "page_width": 940.0, "page_height": 560.0, "overview": true, "step_ids": [ "clear", "config", "entry", "give", "pass", "resume", "trigger", "wait", "waiter" ] }, "diagram_title": "A5 · IRQ handoff replay", "diagram_block_label": "A5 FLOW", "diagram_description": "Jeden realny handoff E01–E09.", "diagram_phase_labels": [ "TRIGGER / ISR / YIELD / PASS" ] } ], "steps": [], "spread_group": "", "spread_label": "A5 FLOW — od Blocked przez ISR do natychmiastowego waitera.", "spread_columns": 1, "spread_index": 1, "spread_count": 1, "page_orientation": "landscape" }, { "id": "section-4-content", "index": 4, "title": "A6 — State", "show_heading": false, "toc_entry": true, "header_html": "
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TITLEPrzerwanie zewnętrzne i semaphore FromISR
VER.v00.01
DATETIME2026-07-19T00:00:00+02:00
PROJECTFreestanding C nad FreeRTOS
SERIESFreeRTOS C
CARD07/15
SHEET5/7
SUBJ.Inf.
PROG.—
CORE—
SCOPE—
LEVEL—
POS.—
GITEA UUID530724e2-6774-5b17-9912-b3f5c243c15dCARD UUIDa6da1075-8d1f-5615-b0e6-0fc33e59e1e3AUTHOR  M. Pabiszczak
GITEA  https://zsl-gitea.mpabi.pl/edu-freertos-c/lab-rv32i-freertos-c-isr-semaphore
HTML  https://dce7fb9d-7b2f-5d49-96a2-3a30d3070b84.mpabi.pl/a6da1075-8d1f-5615-b0e6-0fc33e59e1e3
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", "content_html": "", "tasks": [], "assets": [ { "label": "fig:a6-state", "logical_label": "fig:a6-state", "figure_number": 4, "caption": "A6 STATE — empty, given, switch i taken. — część 1/1 (r1 c1)", "alt": "Maszyna stanu semaphore handoff.", "href": "figures/a6-state.svg", "source_href": "figures/a6-state.puml", "width": 1.0, "kind": "diagram", "interactive": { "kind": "uml-class", "storage_key": "fc07-a6-state-tile-1", "title": "A6 · ISR handoff state", "task": { "id": "task01", "label": "Task01 · ISR semaphore" }, "block": { "id": "a6", "label": "A6 STATE", "description": "Semaphore state i scheduler decision." }, "phases": [ { "id": "state", "label": "SEMAPHORE / TASK / SWITCH", "steps": [ { "id": "empty", "number": 1, "label": "empty semaphore blocks waiter", "mode": "RUN", "event_id": "E02", "strategy_ref": "run.handoff", "svg_label": "01", "code_ref": "src/tasks/task01_isr_semaphore.c:131", "snapshot_ref": "task01.waiter-block", "description": "Waiter trafia na wait list.", "evidence": "Blocked.", "strategy": { "id": "task01/a6/state/empty", "kind": "run", "action": "replay", "expected_observations": [ "xHPW=pdTRUE", "E07 poprzedza E08" ], "assertions": [ "waiter value widzi stimulus_after=0", "stimulus po resume widzi waiter_ran=1" ], "evidence_fields": [ "state", "actor", "value", "PC/SP" ], "prerequisites": [ "waiter Blocked na binary semaphore" ], "layout": [ "semaphore", "xHPW", "waiter/stimulus TCB", "event order" ], "commands": [ "print g_fc07.higher_priority_task_woken", "print g_fc07_events" ], "template_id": "run.handoff" } }, { "id": "pending", "number": 2, "label": "IRQ interrupts stimulus", "mode": "RUN", "event_id": "E04", "strategy_ref": "run.trap", "svg_label": "02", "code_ref": "src/tasks/task01_isr_semaphore.c:99", "snapshot_ref": "task01.isr-entry", "description": "Stimulus context jest zachowany.", "evidence": "mepc and SP.", "strategy": { "id": "task01/a6/state/pending", "kind": "run", "action": "replay", "expected_observations": [ "mcause=0x8000000b", "ISR SP różny od task SP", "source=0" ], "assertions": [ "real MEI", "full context saved" ], "evidence_fields": [ "mcause", "SP", "PC", "IRQ register", "timestamp" ], "prerequisites": [ "Hazard3 online", "IRQ5 enabled", "czysta RAM" ], "layout": [ "mcause", "mepc", "xISRStack", "source register" ], "commands": [ "print/x g_fc07.mcause", "print/x g_fc07.isr_sp", "print g_fc07.irq_source_after_clear" ], "template_id": "run.trap" } }, { "id": "given", "number": 3, "label": "give makes waiter Ready", "mode": "RUN", "event_id": "E06", "strategy_ref": "run.handoff", "svg_label": "03", "code_ref": "src/tasks/task01_isr_semaphore.c:111", "snapshot_ref": "task01.give-yield", "description": "Semaphore nie pozostaje full.", "evidence": "xHPW=true.", "strategy": { "id": "task01/a6/state/given", "kind": "run", "action": "replay", "expected_observations": [ "xHPW=pdTRUE", "E07 poprzedza E08" ], "assertions": [ "waiter value widzi stimulus_after=0", "stimulus po resume widzi waiter_ran=1" ], "evidence_fields": [ "state", "actor", "value", "PC/SP" ], "prerequisites": [ "waiter Blocked na binary semaphore" ], "layout": [ "semaphore", "xHPW", "waiter/stimulus TCB", "event order" ], "commands": [ "print g_fc07.higher_priority_task_woken", "print g_fc07_events" ], "template_id": "run.handoff" } }, { "id": "switch", "number": 4, "label": "yield requests context switch", "mode": "RUN", "event_id": "E06", "strategy_ref": "run.handoff", "svg_label": "04", "code_ref": "src/tasks/task01_isr_semaphore.c:118", "snapshot_ref": "task01.give-yield", "description": "pxCurrentTCB wybiera waitera.", "evidence": "vTaskSwitchContext.", "strategy": { "id": "task01/a6/state/switch", "kind": "run", "action": "replay", "expected_observations": [ "xHPW=pdTRUE", "E07 poprzedza E08" ], "assertions": [ "waiter value widzi stimulus_after=0", "stimulus po resume widzi waiter_ran=1" ], "evidence_fields": [ "state", "actor", "value", "PC/SP" ], "prerequisites": [ "waiter Blocked na binary semaphore" ], "layout": [ "semaphore", "xHPW", "waiter/stimulus TCB", "event order" ], "commands": [ "print g_fc07.higher_priority_task_woken", "print g_fc07_events" ], "template_id": "run.handoff" } }, { "id": "taken", "number": 5, "label": "waiter consumes token", "mode": "RUN", "event_id": "E07", "strategy_ref": "run.handoff", "svg_label": "05", "code_ref": "src/tasks/task01_isr_semaphore.c:131", "snapshot_ref": "task01.waiter-runs", "description": "Take wraca pdPASS.", "evidence": "waiter Running.", "strategy": { "id": "task01/a6/state/taken", "kind": "run", "action": "replay", "expected_observations": [ "xHPW=pdTRUE", "E07 poprzedza E08" ], "assertions": [ "waiter value widzi stimulus_after=0", "stimulus po resume widzi waiter_ran=1" ], "evidence_fields": [ "state", "actor", "value", "PC/SP" ], "prerequisites": [ "waiter Blocked na binary semaphore" ], "layout": [ "semaphore", "xHPW", "waiter/stimulus TCB", "event order" ], "commands": [ "print g_fc07.higher_priority_task_woken", "print g_fc07_events" ], "template_id": "run.handoff" } }, { "id": "resumed", "number": 6, "label": "stimulus eventually resumes", "mode": "RUN", "event_id": "E08", "strategy_ref": "run.handoff", "svg_label": "06", "code_ref": "src/tasks/task01_isr_semaphore.c:158", "snapshot_ref": "task01.stimulus-resumes", "description": "Oryginalny mepc nie ginie.", "evidence": "E08 after E07.", "strategy": { "id": "task01/a6/state/resumed", "kind": "run", "action": "replay", "expected_observations": [ "xHPW=pdTRUE", "E07 poprzedza E08" ], "assertions": [ "waiter value widzi stimulus_after=0", "stimulus po resume widzi waiter_ran=1" ], "evidence_fields": [ "state", "actor", "value", "PC/SP" ], "prerequisites": [ "waiter Blocked na binary semaphore" ], "layout": [ "semaphore", "xHPW", "waiter/stimulus TCB", "event order" ], "commands": [ "print g_fc07.higher_priority_task_woken", "print g_fc07_events" ], "template_id": "run.handoff" } } ] } ] }, "tile": { "index": 1, "count": 1, "row": 1, "column": 1, "rows": 1, "columns": 1, "x": 0.0, "y": 0.0, "width": 277.0, "height": 520.0, "full_x": 0.0, "full_y": 0.0, "full_width": 277.0, "full_height": 520.0, "page_width": 660.0, "page_height": 760.0, "overview": true, "step_ids": [ "empty", "given", "pending", "resumed", "switch", "taken" ] }, "diagram_title": "A6 · ISR handoff state", "diagram_block_label": "A6 STATE", "diagram_description": "Semaphore state i scheduler decision.", "diagram_phase_labels": [ "SEMAPHORE / TASK / SWITCH" ] } ], "steps": [], "spread_group": "", "spread_label": "A6 STATE — empty, given, switch i taken.", "spread_columns": 1, "spread_index": 1, "spread_count": 1, "page_orientation": "portrait" }, { "id": "section-5-content", "index": 5, "title": "A7 — Runtime", "show_heading": false, "toc_entry": true, "header_html": "
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TITLEPrzerwanie zewnętrzne i semaphore FromISR
VER.v00.01
DATETIME2026-07-19T00:00:00+02:00
PROJECTFreestanding C nad FreeRTOS
SERIESFreeRTOS C
CARD07/15
SHEET6/7
SUBJ.Inf.
PROG.—
CORE—
SCOPE—
LEVEL—
POS.—
GITEA UUID530724e2-6774-5b17-9912-b3f5c243c15dCARD UUIDa6da1075-8d1f-5615-b0e6-0fc33e59e1e3AUTHOR  M. Pabiszczak
GITEA  https://zsl-gitea.mpabi.pl/edu-freertos-c/lab-rv32i-freertos-c-isr-semaphore
HTML  https://dce7fb9d-7b2f-5d49-96a2-3a30d3070b84.mpabi.pl/a6da1075-8d1f-5615-b0e6-0fc33e59e1e3
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", "content_html": "", "tasks": [], "assets": [ { "label": "fig:a7-runtime", "logical_label": "fig:a7-runtime", "figure_number": 5, "caption": "A7 RUNTIME — stimulus TCB, xISRStack i waiter TCB. — część 1/1 (r1 c1)", "alt": "Runtime trzech kontekstów stosu.", "href": "figures/a7-runtime.svg", "source_href": "figures/a7-runtime.puml", "width": 1.0, "kind": "diagram", "interactive": { "kind": "uml-class", "storage_key": "fc07-a7-runtime-tile-1", "title": "A7 · stack and context evidence", "task": { "id": "task01", "label": "Task01 · ISR semaphore" }, "block": { "id": "a7", "label": "A7 RUNTIME", "description": "Trzy stosy i dwa TCB w jednym trap replay." }, "phases": [ { "id": "runtime", "label": "TCB / ISR STACK / RESTORE", "steps": [ { "id": "waiter", "number": 1, "label": "waiter owns priority-3 stack", "mode": "RUN", "event_id": "E02", "strategy_ref": "run.handoff", "svg_label": "01", "code_ref": "src/tasks/task01_isr_semaphore.c:129", "snapshot_ref": "task01.waiter-block", "description": "SP zapisany przed take.", "evidence": "waiter_sp.", "strategy": { "id": "task01/a7/runtime/waiter", "kind": "run", "action": "replay", "expected_observations": [ "xHPW=pdTRUE", "E07 poprzedza E08" ], "assertions": [ "waiter value widzi stimulus_after=0", "stimulus po resume widzi waiter_ran=1" ], "evidence_fields": [ "state", "actor", "value", "PC/SP" ], "prerequisites": [ "waiter Blocked na binary semaphore" ], "layout": [ "semaphore", "xHPW", "waiter/stimulus TCB", "event order" ], "commands": [ "print g_fc07.higher_priority_task_woken", "print g_fc07_events" ], "template_id": "run.handoff" } }, { "id": "stimulus", "number": 2, "label": "stimulus owns interrupted stack", "mode": "RUN", "event_id": "E03", "strategy_ref": "run.trap", "svg_label": "02", "code_ref": "src/tasks/task01_isr_semaphore.c:153", "snapshot_ref": "task01.before-trigger", "description": "Priority 2.", "evidence": "stimulus_sp.", "strategy": { "id": "task01/a7/runtime/stimulus", "kind": "run", "action": "replay", "expected_observations": [ "mcause=0x8000000b", "ISR SP różny od task SP", "source=0" ], "assertions": [ "real MEI", "full context saved" ], "evidence_fields": [ "mcause", "SP", "PC", "IRQ register", "timestamp" ], "prerequisites": [ "Hazard3 online", "IRQ5 enabled", "czysta RAM" ], "layout": [ "mcause", "mepc", "xISRStack", "source register" ], "commands": [ "print/x g_fc07.mcause", "print/x g_fc07.isr_sp", "print g_fc07.irq_source_after_clear" ], "template_id": "run.trap" } }, { "id": "isr", "number": 3, "label": "trap switches to xISRStack", "mode": "RUN", "event_id": "E04", "strategy_ref": "run.trap", "svg_label": "03", "code_ref": "src/tasks/task01_isr_semaphore.c:104", "snapshot_ref": "task01.isr-entry", "description": "ISR nie zużywa task stack.", "evidence": "isr_sp distinct.", "strategy": { "id": "task01/a7/runtime/isr", "kind": "run", "action": "replay", "expected_observations": [ "mcause=0x8000000b", "ISR SP różny od task SP", "source=0" ], "assertions": [ "real MEI", "full context saved" ], "evidence_fields": [ "mcause", "SP", "PC", "IRQ register", "timestamp" ], "prerequisites": [ "Hazard3 online", "IRQ5 enabled", "czysta RAM" ], "layout": [ "mcause", "mepc", "xISRStack", "source register" ], "commands": [ "print/x g_fc07.mcause", "print/x g_fc07.isr_sp", "print g_fc07.irq_source_after_clear" ], "template_id": "run.trap" } }, { "id": "sem", "number": 4, "label": "semaphore links ISR and waiter", "mode": "RUN", "event_id": "E06", "strategy_ref": "run.handoff", "svg_label": "04", "code_ref": "src/tasks/task01_isr_semaphore.c:111", "snapshot_ref": "task01.give-yield", "description": "Only FromISR API in ISR.", "evidence": "xHPW.", "strategy": { "id": "task01/a7/runtime/sem", "kind": "run", "action": "replay", "expected_observations": [ "xHPW=pdTRUE", "E07 poprzedza E08" ], "assertions": [ "waiter value widzi stimulus_after=0", "stimulus po resume widzi waiter_ran=1" ], "evidence_fields": [ "state", "actor", "value", "PC/SP" ], "prerequisites": [ "waiter Blocked na binary semaphore" ], "layout": [ "semaphore", "xHPW", "waiter/stimulus TCB", "event order" ], "commands": [ "print g_fc07.higher_priority_task_woken", "print g_fc07_events" ], "template_id": "run.handoff" } }, { "id": "evidence", "number": 5, "label": "event order proves selected return", "mode": "RUN", "event_id": "E09", "strategy_ref": "run.pass", "svg_label": "05", "code_ref": "src/tasks/task01_isr_semaphore.c:195", "snapshot_ref": "task01.pass", "description": "E07 waiter, E08 stimulus.", "evidence": "nine committed records.", "strategy": { "id": "task01/a7/runtime/evidence", "kind": "run", "action": "replay", "expected_observations": [ "PASS=1", "nine sequential markers" ], "assertions": [ "three distinct stack contexts", "digest stable" ], "evidence_fields": [ "PASS", "digest", "source blob", "ELF hash", "timestamp" ], "prerequisites": [ "E01–E08 committed" ], "layout": [ "nine records", "stack separation", "digest" ], "commands": [ "print g_fc07_pass", "print g_fc07.digest" ], "template_id": "run.pass" } } ] } ] }, "tile": { "index": 1, "count": 1, "row": 1, "column": 1, "rows": 1, "columns": 1, "x": 0.0, "y": 0.0, "width": 427.0, "height": 520.0, "full_x": 0.0, "full_y": 0.0, "full_width": 427.0, "full_height": 520.0, "page_width": 660.0, "page_height": 760.0, "overview": true, "step_ids": [ "evidence", "isr", "sem", "stimulus", "waiter" ] }, "diagram_title": "A7 · stack and context evidence", "diagram_block_label": "A7 RUNTIME", "diagram_description": "Trzy stosy i dwa TCB w jednym trap replay.", "diagram_phase_labels": [ "TCB / ISR STACK / RESTORE" ] } ], "steps": [], "spread_group": "", "spread_label": "A7 RUNTIME — stimulus TCB, xISRStack i waiter TCB.", "spread_columns": 1, "spread_index": 1, "spread_count": 1, "page_orientation": "portrait" }, { "id": "section-6-task01", "index": 6, "title": "Task01 — ISR semaphore", "show_heading": true, "toc_entry": true, "header_html": "
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TITLEPrzerwanie zewnętrzne i semaphore FromISR
VER.v00.01
DATETIME2026-07-19T00:00:00+02:00
PROJECTFreestanding C nad FreeRTOS
SERIESFreeRTOS C
CARD07/15
SHEET7/7
SUBJ.Inf.
PROG.—
CORE—
SCOPE—
LEVEL—
POS.—
GITEA UUID530724e2-6774-5b17-9912-b3f5c243c15dCARD UUIDa6da1075-8d1f-5615-b0e6-0fc33e59e1e3AUTHOR  M. Pabiszczak
GITEA  https://zsl-gitea.mpabi.pl/edu-freertos-c/lab-rv32i-freertos-c-isr-semaphore
HTML  https://dce7fb9d-7b2f-5d49-96a2-3a30d3070b84.mpabi.pl/a6da1075-8d1f-5615-b0e6-0fc33e59e1e3
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TECH
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OG
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", "content_html": "", "tasks": [ { "ref": "task01", "title": "External IRQ → FromISR semaphore → high-priority task", "uuid": "a6da1075-8d1f-5615-b0e6-0fc33e59e1e3", "criterion": "PASS; mcause=MEI; source=0 przed give; xHPW=1; waiter E07 przed stimulus E08; trzy różne stosy; deterministyczny digest.", "conclusion_html": "

ISR działa na osobnym stacku i używa FromISR API. xHigherPriorityTaskWoken jest informacją dla portu; dopiero portYIELD_FROM_ISR powoduje restore kontekstu wyższego taska przed powrotem do przerwanego kodu.

", "prompt_html": "

Przejdź po A1, A3, A5, A6 i A7. Odtwórz E01–E09 i udowodnij source-clear-before-give oraz waiter-before-stimulus.

", "flow": [ { "id": "contract", "kind": "block", "title": "A — kontrakt przerwania", "content_html": "

Rozdziel source, vector, port, ISR i task.

", "steps": [ { "id": "order", "title": "Ustal kolejność ISR.", "content_html": "

Najpierw clear, potem give, na końcu yield.

" }, { "id": "predict", "title": "Przewidź context restore.", "content_html": "

Wskaż, czy pierwszy wykona się waiter czy stimulus.

" } ] }, { "id": "replay", "kind": "block", "title": "B — replay Hazard3", "content_html": "

Każdy RUN zaczyna się od czystej RAM i wyłączonego źródła.

", "steps": [ { "id": "trap", "title": "Zbadaj E03–E05.", "content_html": "

Zapisz mcause, mepc, isr_sp i source state.

" }, { "id": "handoff", "title": "Zbadaj E06–E08.", "content_html": "

Porównaj xHPW i kolejność tasków.

" }, { "id": "pass", "title": "Zbadaj E09.", "content_html": "

Sprawdź trzy stosy, markers i digest.

" } ] }, { "id": "no-yield", "kind": "exercise", "title": "Ćwiczenie — brak yield request", "content_html": "", "steps": [] } ] } ], "assets": [], "steps": [], "spread_group": "", "spread_label": "", "spread_columns": 1, "spread_index": 1, "spread_count": 1, "page_orientation": "portrait" } ], "viewpoints": [ { "id": "A1", "label": "CONTEXT", "subtitle": "Testbench → Hazard3 → port → task", "status": "enabled", "target_label": "fig:a1-context", "target_id": "fig-a1-context" }, { "id": "A2", "label": "STRUCTURE", "subtitle": "Struktura", "status": "unavailable", "reason": "Obiekty runtime i ich relacje są pełniej pokazane w A7.", "target_id": "" }, { "id": "A3", "label": "DISPATCH", "subtitle": "Vector, trap, FromISR i context switch", "status": "enabled", "target_label": "fig:a3-dispatch", "target_id": "fig-a3-dispatch" }, { "id": "A4", "label": "APPLICATION", "subtitle": "Eksperyment", "status": "unavailable", "reason": "Konkretny handoff jest kompletny w A5.", "target_id": "" }, { "id": "A5", "label": "FLOW", "subtitle": "E01–E09: trigger do PASS", "status": "enabled", "target_label": "fig:a5-flow", "target_id": "fig-a5-flow" }, { "id": "A6", "label": "STATE", "subtitle": "Semaphore empty/given/taken i task state", "status": "enabled", "target_label": "fig:a6-state", "target_id": "fig-a6-state" }, { "id": "A7", "label": "RUNTIME", "subtitle": "Waiter, stimulus i xISRStack", "status": "enabled", "target_label": "fig:a7-runtime", "target_id": "fig-a7-runtime" }, { "id": "A8", "label": "PATTERNS", "subtitle": "Wzorce", "status": "unavailable", "reason": "Deferred interrupt handoff jest tu mechanizmem wykonania A3/A5, nie osobnym wzorcem aplikacyjnym.", "target_id": "" } ], "has_spread": false, "has_allocator_model": false, "dictionary": null, "toc": [ { "id": "section-1-content", "label": "1. A1 — Context" }, { "id": "section-2-content", "label": "2. A3 — Dispatch" }, { "id": "section-3-content", "label": "3. A5 — Flow" }, { "id": "section-4-content", "label": "4. A6 — State" }, { "id": "section-5-content", "label": "5. A7 — Runtime" }, { "id": "section-6-task01", "label": "6. Task01 — ISR semaphore" } ] }