添加一些关于midi播放的项目

2025-03-24 14:30:56 +08:00
parent e31eb22077
commit 498b4ef13b
699 changed files with 186162 additions and 1 deletions
@@ -0,0 +1,35 @@
+#include "SynthCore.h"
+#include "Player.h"
+#include "AsmCommon.h"
+
+.section .text 
+
+// if (player->decoder.status == STATUS_DECODING)
+//     player->decoder.currentTick++;
+// if (player->synthesizer.decayGenTick < 200)
+//     player->synthesizer.decayGenTick += 1;
+
+UpdateTick:
+	ptrSoundUnit .req r0
+	ptrScoreDecoder .req r1
+	ldr r5,=#pStatus
+	add r5,r5,ptrScoreDecoder
+	ldr r5,[r5]
+	cmp r5,#constSTATUS_DECODING
+	bne currentTickUpdateEnd
+	ldr r5,=#pCurrentTick
+	add r5,r5,ptrScoreDecoder
+	ldr r6,[r5]
+	adds r6,r6,#1
+	str r6,[r5]
+currentTickUpdateEnd:
+
+	ldr r5,=#pDecayGenTick
+	add r5,r5,ptrSoundUnit
+	ldr r6,[r5]
+	ldr r4,=#DECAY_TIME_FACTOR
+	cmp r6,r4
+	bhs updateDecayGenTickEnd  //bhs Branch if Same or Higher (Unsigned)
+	adds r6,r6,#1
+	str r6,[r5]
+	updateDecayGenTickEnd: