mirror of
https://gitlab.com/ryandwyer/perfect-dark
synced 2026-07-31 07:56:03 -04:00
Ryan Dwyer
237 lines
7.1 KiB
C
237 lines
7.1 KiB
C
#include <libultra_internal.h>
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#include "bss.h"
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OSDevMgr __osViDevMgr = {0};
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u32 var8005cefc = 0;
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OSThread viThread;
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char viThreadStack[512];
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OSMesgQueue viEventQueue;
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OSMesg viEventBuf[5];
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u32 var8009025c;
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OSIoMesg viRetraceMsg;
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OSIoMesg viCounterMsg;
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u32 var80090290;
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void viMgrMain(void *args);
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void osCreateViManager(OSPri pri)
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{
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u32 savedMask;
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OSPri oldPri;
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OSPri myPri;
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if (__osViDevMgr.active == 0) {
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__osTimerServicesInit();
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var8005cefc = 0;
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osCreateMesgQueue(&viEventQueue, viEventBuf, 5);
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viRetraceMsg.hdr.type = OS_MESG_TYPE_VRETRACE;
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viRetraceMsg.hdr.pri = OS_MESG_PRI_NORMAL;
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viRetraceMsg.hdr.retQueue = NULL;
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viCounterMsg.hdr.type = OS_MESG_TYPE_COUNTER;
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viCounterMsg.hdr.pri = OS_MESG_PRI_NORMAL;
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viCounterMsg.hdr.retQueue = NULL;
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osSetEventMesg(OS_EVENT_VI, &viEventQueue, &viRetraceMsg);
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osSetEventMesg(OS_EVENT_COUNTER, &viEventQueue, &viCounterMsg);
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oldPri = -1;
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myPri = osGetThreadPri(NULL);
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if (myPri < pri) {
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oldPri = myPri;
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osSetThreadPri(NULL, pri);
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}
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savedMask = __osDisableInt();
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__osViDevMgr.active = 1;
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__osViDevMgr.thread = &viThread;
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__osViDevMgr.cmdQueue = &viEventQueue;
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__osViDevMgr.evtQueue = &viEventQueue;
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__osViDevMgr.acsQueue = NULL;
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__osViDevMgr.dma = NULL;
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__osViDevMgr.edma = NULL;
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osCreateThread(&viThread, 0, viMgrMain, &__osViDevMgr, &viThreadStack[512], pri);
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__osViInit();
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osStartThread(&viThread);
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__osRestoreInt(savedMask);
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if (oldPri != -1) {
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osSetThreadPri(0, oldPri);
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}
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}
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}
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GLOBAL_ASM(
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glabel viMgrMain
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/* 31d0: 27bdffb0 */ addiu $sp,$sp,-80
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/* 31d4: afbf0034 */ sw $ra,0x34($sp)
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/* 31d8: afb70030 */ sw $s7,0x30($sp)
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/* 31dc: 0080b825 */ or $s7,$a0,$zero
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/* 31e0: afb6002c */ sw $s6,0x2c($sp)
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/* 31e4: afb50028 */ sw $s5,0x28($sp)
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/* 31e8: afb40024 */ sw $s4,0x24($sp)
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/* 31ec: afb30020 */ sw $s3,0x20($sp)
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/* 31f0: afb2001c */ sw $s2,0x1c($sp)
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/* 31f4: afb10018 */ sw $s1,0x18($sp)
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/* 31f8: afb00014 */ sw $s0,0x14($sp)
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/* 31fc: 0c0125e0 */ jal __osViGetCurrentContext
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/* 3200: afa00044 */ sw $zero,0x44($sp)
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/* 3204: 94430002 */ lhu $v1,0x2($v0)
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/* 3208: 3c018009 */ lui $at,%hi(var80090290)
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/* 320c: 2416000e */ addiu $s6,$zero,0xe
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/* 3210: 14600004 */ bnez $v1,.L00003224
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/* 3214: a4230290 */ sh $v1,%lo(var80090290)($at)
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/* 3218: 24030001 */ addiu $v1,$zero,0x1
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/* 321c: 3c018009 */ lui $at,%hi(var80090290)
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/* 3220: a4230290 */ sh $v1,%lo(var80090290)($at)
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.L00003224:
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/* 3224: 3c13800a */ lui $s3,%hi(__osViIntrCount)
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/* 3228: 3c12800a */ lui $s2,%hi(__osBaseCounter)
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/* 322c: 3c11800a */ lui $s1,%hi(__osCurrentTime)
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/* 3230: 2631c780 */ addiu $s1,$s1,%lo(__osCurrentTime)
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/* 3234: 2652c788 */ addiu $s2,$s2,%lo(__osBaseCounter)
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/* 3238: 2673c78c */ addiu $s3,$s3,%lo(__osViIntrCount)
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/* 323c: 2415000d */ addiu $s5,$zero,0xd
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/* 3240: 27b40044 */ addiu $s4,$sp,0x44
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.L00003244:
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/* 3244: 8ee4000c */ lw $a0,0xc($s7)
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.L00003248:
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/* 3248: 02802825 */ or $a1,$s4,$zero
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/* 324c: 0c0121bc */ jal osRecvMesg
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/* 3250: 24060001 */ addiu $a2,$zero,0x1
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/* 3254: 8fae0044 */ lw $t6,0x44($sp)
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/* 3258: 95c30000 */ lhu $v1,0x0($t6)
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/* 325c: 10750005 */ beq $v1,$s5,.L00003274
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/* 3260: 00000000 */ nop
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/* 3264: 1076002a */ beq $v1,$s6,.L00003310
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/* 3268: 00000000 */ nop
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/* 326c: 1000fff6 */ b .L00003248
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/* 3270: 8ee4000c */ lw $a0,0xc($s7)
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.L00003274:
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/* 3274: 0c0125e4 */ jal __osViSwapContext
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/* 3278: 00000000 */ nop
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/* 327c: 3c038009 */ lui $v1,%hi(var80090290)
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/* 3280: 94630290 */ lhu $v1,%lo(var80090290)($v1)
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/* 3284: 3c018009 */ lui $at,%hi(var80090290)
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/* 3288: 2463ffff */ addiu $v1,$v1,-1
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/* 328c: 306fffff */ andi $t7,$v1,0xffff
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/* 3290: 15e0000e */ bnez $t7,.L000032cc
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/* 3294: a42f0290 */ sh $t7,%lo(var80090290)($at)
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/* 3298: 0c0125e0 */ jal __osViGetCurrentContext
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/* 329c: 00000000 */ nop
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/* 32a0: 8c580010 */ lw $t8,0x10($v0)
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/* 32a4: 00408025 */ or $s0,$v0,$zero
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/* 32a8: 00003025 */ or $a2,$zero,$zero
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/* 32ac: 53000005 */ beqzl $t8,.L000032c4
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/* 32b0: 96030002 */ lhu $v1,0x2($s0)
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/* 32b4: 8c440010 */ lw $a0,0x10($v0)
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/* 32b8: 0c012238 */ jal osSendMesg
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/* 32bc: 8c450014 */ lw $a1,0x14($v0)
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/* 32c0: 96030002 */ lhu $v1,0x2($s0)
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.L000032c4:
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/* 32c4: 3c018009 */ lui $at,%hi(var80090290)
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/* 32c8: a4230290 */ sh $v1,%lo(var80090290)($at)
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.L000032cc:
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/* 32cc: 8e790000 */ lw $t9,0x0($s3)
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/* 32d0: 8e500000 */ lw $s0,0x0($s2)
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/* 32d4: 27280001 */ addiu $t0,$t9,0x1
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/* 32d8: 0c012144 */ jal osGetCount
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/* 32dc: ae680000 */ sw $t0,0x0($s3)
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/* 32e0: 8e2d0004 */ lw $t5,0x4($s1)
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/* 32e4: 00508023 */ subu $s0,$v0,$s0
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/* 32e8: 8e2c0000 */ lw $t4,0x0($s1)
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/* 32ec: 020d7821 */ addu $t7,$s0,$t5
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/* 32f0: 240a0000 */ addiu $t2,$zero,0x0
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/* 32f4: 01ed082b */ sltu $at,$t7,$t5
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/* 32f8: 002a7021 */ addu $t6,$at,$t2
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/* 32fc: 01cc7021 */ addu $t6,$t6,$t4
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/* 3300: ae420000 */ sw $v0,0x0($s2)
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/* 3304: ae2e0000 */ sw $t6,0x0($s1)
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/* 3308: 1000ffce */ b .L00003244
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/* 330c: ae2f0004 */ sw $t7,0x4($s1)
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.L00003310:
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/* 3310: 0c01248f */ jal __osTimerInterrupt
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/* 3314: 00000000 */ nop
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/* 3318: 1000ffcb */ b .L00003248
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/* 331c: 8ee4000c */ lw $a0,0xc($s7)
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/* 3320: 00000000 */ nop
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/* 3324: 00000000 */ nop
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/* 3328: 00000000 */ nop
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/* 332c: 00000000 */ nop
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/* 3330: 8fbf0034 */ lw $ra,0x34($sp)
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/* 3334: 8fb00014 */ lw $s0,0x14($sp)
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/* 3338: 8fb10018 */ lw $s1,0x18($sp)
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/* 333c: 8fb2001c */ lw $s2,0x1c($sp)
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/* 3340: 8fb30020 */ lw $s3,0x20($sp)
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/* 3344: 8fb40024 */ lw $s4,0x24($sp)
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/* 3348: 8fb50028 */ lw $s5,0x28($sp)
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/* 334c: 8fb6002c */ lw $s6,0x2c($sp)
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/* 3350: 8fb70030 */ lw $s7,0x30($sp)
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/* 3354: 03e00008 */ jr $ra
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/* 3358: 27bd0050 */ addiu $sp,$sp,0x50
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);
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// This matches, but the infinite loop causes ld to add 0x10 bytes of fill
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// to the start of this file's .text section.
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//void viMgrMain(void *args)
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//{
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// __OSViContext *vc;
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// OSDevMgr *dm;
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// OSIoMesg *mb;
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// static u16 retrace; // var80090290
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// s32 first;
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// u32 count;
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//
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// mb = NULL;
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// first = 0;
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// vc = __osViGetCurrentContext();
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// retrace = vc->retraceCount;
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//
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// if (retrace == 0) {
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// retrace = 1;
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// }
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//
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// dm = (OSDevMgr *)args;
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//
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// while (true) {
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// osRecvMesg(dm->evtQueue, (OSMesg) &mb, OS_MESG_BLOCK);
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//
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// switch (mb->hdr.type) {
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// case OS_MESG_TYPE_VRETRACE:
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// __osViSwapContext();
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// retrace--;
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//
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// if (retrace == 0) {
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// vc = __osViGetCurrentContext();
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//
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// if (vc->msgq != NULL) {
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// osSendMesg(vc->msgq, vc->msg, OS_MESG_NOBLOCK);
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// }
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//
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// retrace = vc->retraceCount;
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// }
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//
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// __osViIntrCount++;
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//
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// if (first) {
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// count = osGetCount();
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// __osCurrentTime = count;
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// first = 0;
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// }
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//
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// count = __osBaseCounter;
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// __osBaseCounter = osGetCount();
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// count = __osBaseCounter - count;
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// __osCurrentTime = __osCurrentTime + count;
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// break;
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// case OS_MESG_TYPE_COUNTER:
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// __osTimerInterrupt();
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// break;
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// }
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// }
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//}
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