From 3cdd278c724656f17f18aa98baf79ffd00e5ac7b Mon Sep 17 00:00:00 2001
From: Andrew Opalach <andrew@akon.city>
Date: Tue, 3 Jun 2025 10:21:14 -0400
Subject: remove trailing whitespace

---
 chip8.c  | 32 ++++++++++++++++----------------
 chip8.h  |  2 +-
 ui_sdl.c |  5 ++---
 3 files changed, 19 insertions(+), 20 deletions(-)

diff --git a/chip8.c b/chip8.c
index a6dfbd5..f057c3c 100644
--- a/chip8.c
+++ b/chip8.c
@@ -7,7 +7,7 @@
 
 #ifdef _WIN32
 #include <winsock.h>
-#else 
+#else
 #include <arpa/inet.h>
 #include <unistd.h>
 #endif
@@ -58,7 +58,7 @@ void load_rom(char *path) {
   vm.ram = (u8*)malloc(0xFFF);
 
   memset(vm.ram, 0, 0xFFF);
-  
+
 #ifdef _WIN32
   size_t res = read(fd, &vm.ram[0x200], fsize);
 #else
@@ -90,7 +90,7 @@ void vm_step(void) {
   //                ^^^
 
   switch ((in>>12&0xF)) {
-    case 0x0: 
+    case 0x0:
       switch (in&0xFF) {
         case 0xE0: // CLS
           memset(&vm.screen, 0, sizeof(vm.screen));
@@ -98,7 +98,7 @@ void vm_step(void) {
         case 0xEE: // RET
           vm.PC = vm.stack[vm.SP--];
           break;
-      } 
+      }
       break;
     case 0x1: // JP addr
       vm.PC = (in&0xFFF) - 0x2;
@@ -128,21 +128,21 @@ void vm_step(void) {
     case 0x7: // ADD Vx, byte
       vm.Vx[in>>8&0xF] += in&0xFF;
       break;
-    case 0x8: 
+    case 0x8:
       switch(in&0xF) {
-        case 0x0: // LD Vx, Vy 
+        case 0x0: // LD Vx, Vy
           vm.Vx[in>>8&0xF] = vm.Vx[in>>4&0xF];
           break;
-        case 0x1: // OR Vx, Vy 
+        case 0x1: // OR Vx, Vy
           vm.Vx[in>>8&0xF] |= vm.Vx[in>>4&0xF];
           break;
         case 0x2: // AND Vx, Vy
           vm.Vx[in>>8&0xF] &= vm.Vx[in>>4&0xF];
           break;
-        case 0x3: // XOR Vx, Vy 
+        case 0x3: // XOR Vx, Vy
           vm.Vx[in>>8&0xF] ^= vm.Vx[in>>4&0xF];
           break;
-        case 0x4: // ADD Vx, Vy 
+        case 0x4: // ADD Vx, Vy
           if ((vm.Vx[in>>8&0xF] + vm.Vx[in>>4&0xF]) > 0xFF) {
             vm.Vx[0xF] = 1;
           } else {
@@ -150,7 +150,7 @@ void vm_step(void) {
           }
           vm.Vx[in>>8&0xF] = (vm.Vx[in>>8&0xF] + vm.Vx[in>>4&0xF])&0xFF;
           break;
-        case 0x5: // SUB Vx, Vy 
+        case 0x5: // SUB Vx, Vy
           if (vm.Vx[in>>8&0xF] > vm.Vx[in>>4&0xF]) {
             vm.Vx[0xF] = 1;
           } else {
@@ -159,7 +159,7 @@ void vm_step(void) {
           vm.Vx[in>>8&0xF] -= vm.Vx[in>>4&0xF];
           break;
         case 0x6: // SHR Vx {, Vy}
-          vm.Vx[0xF] = (vm.Vx[in>>8&0xF] & 1); 
+          vm.Vx[0xF] = (vm.Vx[in>>8&0xF] & 1);
           // TODO: toggle for Vx /= 2
           vm.Vx[in>>8&0xF] = vm.Vx[in>>8&0xF]>>1;
           break;
@@ -171,14 +171,14 @@ void vm_step(void) {
           }
           vm.Vx[in>>8&0xF] = vm.Vx[in>>4&0xF] - vm.Vx[in>>8&0xF];
           break;
-        case 0xE: // SHL Vx {, Vy} 
+        case 0xE: // SHL Vx {, Vy}
           vm.Vx[0xF] = ((vm.Vx[in>>8&0xF]>>7) & 1);
           // TODO: toggle for Vx *= 2;
           vm.Vx[in>>8&0xF] = vm.Vx[in>>8&0xF]<<1;
           break;
       }
       break;
-    case 0x9: // SNE Vx, Vy 
+    case 0x9: // SNE Vx, Vy
       if (vm.Vx[(in>>8&0xF)] != vm.Vx[(in>>4&0xF)]) {
         vm.PC += 0x2;
       }
@@ -203,14 +203,14 @@ void vm_step(void) {
           if (pix) {
             u8 y = (vm.Vx[in>>4&0xF] + i)&0x1F;
             u8 x = (vm.Vx[in>>8&0xF] + s)&0x3F;
- 
+
             u32 byte = y * 64 + x;
 
             // put the single '1' bit in the position
             // that is relative to the pixel
             u8 bit = 1 << (byte & 0x07);
 
-            // byte>>3 ~ byte / 8 
+            // byte>>3 ~ byte / 8
             // used to get the index of the byte
             // containing the bit to change
             if (vm.screen[byte>>3] & bit) {
@@ -237,7 +237,7 @@ void vm_step(void) {
       break;
     case 0xF:
       switch (in&0xFF) {
-        case 0x07: // LD Vx, DT 
+        case 0x07: // LD Vx, DT
           vm.Vx[in>>8&0xF] = vm.DT;
           break;
         case 0x0A: // LD Vx, K
diff --git a/chip8.h b/chip8.h
index d21ae0a..cbac33e 100644
--- a/chip8.h
+++ b/chip8.h
@@ -16,7 +16,7 @@ typedef struct {
 
   u8 DT;
   u8 ST;
-  
+
   u16 I;
 
   u8 Vx[16];
diff --git a/ui_sdl.c b/ui_sdl.c
index f046cd1..d28b1e3 100644
--- a/ui_sdl.c
+++ b/ui_sdl.c
@@ -19,7 +19,7 @@ SDL_Renderer *r;
 void setup(void) {
   SDL_Init(SDL_INIT_VIDEO);
   SDL_Window* win = SDL_CreateWindow("chip8", SDL_WINDOWPOS_UNDEFINED, SDL_WINDOWPOS_UNDEFINED, W, H, SDL_WINDOW_SHOWN|SDL_WINDOW_RESIZABLE);
-  r = SDL_CreateRenderer(win, -1, SDL_RENDERER_PRESENTVSYNC|SDL_RENDERER_ACCELERATED);  
+  r = SDL_CreateRenderer(win, -1, SDL_RENDERER_PRESENTVSYNC|SDL_RENDERER_ACCELERATED);
   SDL_RenderClear(r);
 }
 
@@ -110,7 +110,7 @@ int main(int argc, char* argv[]) {
     }
 
     int cur = SDL_GetTicks();
-  
+
     if (cur - last_500hz >= (1000/500)) {
       vm_step();
       last_500hz = cur;
@@ -138,4 +138,3 @@ int main(int argc, char* argv[]) {
 
   return 0;
 }
-  
-- 
cgit v1.2.3-101-g0448