`z_nmi_buff` OK, `code_8010C1B0` split and OK (#334)

* nmi_buff OK, code_8010C1B0 split and OK

* COLD_RESET

* spec

* Fix lifemeter bss

* Rename variable

include/variables.h

@@ -3353,7 +3353,7 @@ extern Arena mainHeap;
 // extern UNK_TYPE1 D_801F5730;
 // extern UNK_TYPE1 D_801F57B4;
 // extern UNK_TYPE1 D_801F5834;
-extern s32* gNMIBuffer;
+// extern NmiBuff* gNMIBuffer;
 // extern UNK_TYPE1 D_801F5850;
 // extern UNK_TYPE1 D_801F58B0;
 // extern UNK_TYPE1 D_801F59AC;
@@ -3440,7 +3440,7 @@ extern u64 lastRenderFrameTimestamp;
 extern OSMesgQueue siEventCallbackQueue;
 extern OSMesg siEventCallbackBuffer[1];
 extern u32 gSegments[NUM_SEGMENTS];
-extern SchedContext schedContext;
+extern SchedContext gSchedContext;
 extern IrqMgrClient mainIrqmgrCallbackNode;
 extern OSMesgQueue mainIrqmgrCallbackQueue;
 extern OSMesg mainIrqCallbackBuffer[60];

include/z64.h

@@ -348,6 +348,13 @@ typedef struct {
     /* 0x14 */ u32 relocations[1];
 } OverlayRelocationSection; // size >= 0x18
 
+typedef struct {
+    /* 0x00 */ u32 resetting;
+    /* 0x04 */ u32 resetCount;
+    /* 0x08 */ OSTime duration;
+    /* 0x10 */ OSTime resetTime;
+} NmiBuff; // size >= 0x18
+
 typedef struct {
     /* 0x00 */ s16 intPart[16];
     /* 0x20 */ u16 fracPart[16];

spec

@@ -523,7 +523,7 @@ beginseg
     include "build/src/code/z_msgevent.o"
     include "build/data/code/z_msgevent.data.o"
     include "build/src/code/z_nmi_buff.o"
-    include "build/data/code/z_nmi_buff.bss.o"
+    include "build/src/code/code_8010C1B0.o"
     include "build/src/code/z_olib.o"
     pad_text
     include "build/src/code/z_parameter.o"

src/code/code_8010C1B0.c

@@ -0,0 +1,20 @@
+#include "global.h"
+
+// Blocks the current thread until all currently queued scheduler tasks have been completed
+void func_8010C1B0(void) {
+    OSScTask task;
+    OSMesgQueue queue;
+    OSMesg msg;
+
+    task.next = NULL;
+    task.flags = OS_SC_RCP_MASK;
+    task.msgQ = &queue;
+    task.msg = NULL;
+    task.framebuffer = NULL;
+    task.list.t.type = M_NULTASK;
+
+    osCreateMesgQueue(task.msgQ, &msg, 1);
+    osSendMesg(&gSchedContext.cmdQ, &task, OS_MESG_BLOCK);
+    Sched_SendEntryMsg(&gSchedContext);
+    osRecvMesg(&queue, NULL, OS_MESG_BLOCK);
+}

src/code/main.c

@@ -1,3 +1,8 @@
+/**
+ * This file has unmigrated bss. It is not practical to migrate it until we have a better way of dealing with bss
+ * reordering than just prevent_bss_reordering.h: there is too much of it to control, and it cannot be split into
+ * separate files since most of it is at addresses ending in 8.
+ */
 #include "global.h"
 
 void Main(void* arg) {
@@ -29,14 +34,14 @@ void Main(void* arg) {
     osCreateMesgQueue(&mainIrqmgrCallbackQueue, mainIrqCallbackBuffer, ARRAY_COUNT(mainIrqCallbackBuffer));
 
     StackCheck_Init(&schedStackEntry, schedStack, schedStack + sizeof(schedStack), 0, 0x100, "sched");
-    Sched_Init(&schedContext, schedStack + sizeof(schedStack), Z_PRIORITY_SCHED, D_8009B290, 1, &gIrqMgr);
+    Sched_Init(&gSchedContext, schedStack + sizeof(schedStack), Z_PRIORITY_SCHED, D_8009B290, 1, &gIrqMgr);
 
     CIC6105_AddRomInfoFaultPage();
 
     IrqMgr_AddClient(&gIrqMgr, &mainIrqmgrCallbackNode, &mainIrqmgrCallbackQueue);
 
     StackCheck_Init(&audioStackEntry, audioStack, audioStack + sizeof(audioStack), 0, 0x100, "audio");
-    AudioMgr_Init(&audioContext, audioStack + sizeof(audioStack), Z_PRIORITY_AUDIOMGR, 0xA, &schedContext, &gIrqMgr);
+    AudioMgr_Init(&audioContext, audioStack + sizeof(audioStack), Z_PRIORITY_AUDIOMGR, 0xA, &gSchedContext, &gIrqMgr);
 
     StackCheck_Init(&padmgrStackEntry, padmgrStack, padmgrStack + sizeof(padmgrStack), 0, 0x100, "padmgr");
     Padmgr_Start(&siEventCallbackQueue, &gIrqMgr, 7, Z_PRIORITY_PADMGR, padmgrStack + sizeof(padmgrStack));

src/code/z_nmi_buff.c

@@ -1,9 +1,30 @@
 #include "global.h"
 
-#pragma GLOBAL_ASM("asm/non_matchings/code/z_nmi_buff/Nmi_Init.s")
+#define COLD_RESET 0
+#define NMI 1
 
-#pragma GLOBAL_ASM("asm/non_matchings/code/z_nmi_buff/Nmi_SetPrenmiStart.s")
+NmiBuff* gNMIBuffer;
 
-#pragma GLOBAL_ASM("asm/non_matchings/code/z_nmi_buff/Nmi_GetPrenmiHasStarted.s")
+void Nmi_Init(void) {
+    gNMIBuffer = (NmiBuff*)osAppNmiBuffer;
+    gNMIBuffer->resetting = false;
 
-#pragma GLOBAL_ASM("asm/non_matchings/code/z_nmi_buff/func_8010C1B0.s")
+    if (osResetType == COLD_RESET) {
+        gNMIBuffer->resetCount = 0;
+        gNMIBuffer->duration = 0;
+    } else {
+        gNMIBuffer->resetCount++;
+        gNMIBuffer->duration += gNMIBuffer->resetTime;
+    }
+
+    gNMIBuffer->resetTime = 0;
+}
+
+void Nmi_SetPrenmiStart(void) {
+    gNMIBuffer->resetting = true;
+    gNMIBuffer->resetTime = osGetTime();
+}
+
+u32 Nmi_GetPrenmiHasStarted(void) {
+    return gNMIBuffer->resetting;
+}

tools/disasm/files.txt

@@ -398,6 +398,7 @@
             0x8010A000 : "z_map_exp",
             0x8010A760 : "z_msgevent",
             0x8010C0C0 : "z_nmi_buff",
+            0x8010C1B0 : "code_8010C1B0",
             0x8010C230 : "z_olib",
             0x8010CB70 : "[PADDING]",
             0x8010CB80 : "z_parameter",

tools/disasm/variables.txt

@@ -4189,7 +4189,7 @@
     0x801F8160:("siEventCallbackQueue","OSMesgQueue","",0x18),
     0x801F8178:("siEventCallbackBuffer","OSMesg","[1]",0x4),
     0x801F8180:("gSegments","u32","[16]",0x40),
-    0x801F81C0:("schedContext","SchedContext","",0x338),
+    0x801F81C0:("gSchedContext","SchedContext","",0x338),
     0x801F84F8:("mainIrqmgrCallbackNode","IrqMgrClient","",0x8),
     0x801F8500:("mainIrqmgrCallbackQueue","OSMesgQueue","",0x18),
     0x801F8518:("mainIrqCallbackBuffer","OSMesg","[60]",0xf0),