Implement a basic settings menu

README.md

@@ -20,14 +20,13 @@ Alternatively, some flashcarts support loading ROMs directly with a supplied emu
 `.smc` format to work this way; `rom-converter.py` can optionally convert input ROMs for this.
 
 ### Controls
-|  **N64**  |       **SNES**        |
-|:---------:|:---------------------:|
-| C-Buttons |         ABXY          |
-|   D-Pad   |         D-Pad         |
-|    L/R    |          L/R          |
-|    A/B    |     Start/Select      |
-|   Start   |  Toggle FPS Counter   |
-|     Z     | Toggle Layer Priority |
+|  **N64**  |   **SNES**   |
+|:---------:|:------------:|
+| C-Buttons |     ABXY     |
+|   D-Pad   |    D-Pad     |
+|    L/R    |     L/R      |
+|    A/B    | Start/Select |
+|   Start   |   Settings   |
 
 ### Contributing
 This is a personal project, and I've decided to not review or accept pull requests for it. If you want to help, you can

src/defines.h

@@ -34,11 +34,6 @@
 // Maximum opcode bytes that can be compiled in an APU JIT block
 #define BLOCK_SIZE 16
 
-// Values that control the cooldown between frame sections
-#define SECTION_SHIFT 1
-#define SECTION_MIN 8
-#define SECTION_INC 1
-
 // The frame section data structure's size in bytes
 #define SECTION_SIZE 0x40
 

src/dsp.S

@@ -104,6 +104,11 @@ timer_rates: // Lookup table for timer rates and offsets
 
 .align 5
 dsp_sample:
+    // Check if audio is enabled and schedule the next sample
+    lbu t0, audio_set
+    beqz t0, apu_execute
+    addi a3, a3, -DSP_SAMPLE
+
     // Decrement the global timer once per sample
     lhu t0, dsp_timer
     bnez t0, not_zero
@@ -217,12 +222,9 @@ write_sample: // t4: left, t5: right
     andi t0, a0, 0x1FFF
     sh t0, dsp_pointer
 
-    // Schedule the next sample and check if a buffer is ready
+    // Submit a buffer to the AI when one is ready
     andi t0, a0, 0xFFF
     bnez t0, apu_execute
-    addi a3, a3, -DSP_SAMPLE
-
-    // Submit a buffer to the AI when one is ready
     lui t0, 0xA450 // AI register upper address
     la t1, dsp_buffer - 0x1000
     add t1, t1, a0 // Buffer address