diff --git a/README.md b/README.md
index c776a17..95bd959 100644
--- a/README.md
+++ b/README.md
@@ -259,7 +259,7 @@ Imports the sprite data and compresses it using lzo compression
 
 ### Console input and output
 
-The C64 does not use ASCII it uses a derivative called PETSCII.  There are two fonts, one with uppercase and one with uppercase and lowercase characters.  It also used CR (13) as line terminator instead of LF (10).  The stdio and conio libaries can perform translations.
+The C64 does not use ASCII it uses a derivative called PETSCII.  There are two fonts, one with uppercase and one with uppercase and lowercase characters.  It also used CR (13) as line terminator instead of LF (10).  The stdio and conio libraries can perform translations.
 
 The translation mode is selected in conio with the variable "giocharmap" and the function "iocharmap" which will also switch the font.
 
@@ -276,7 +276,7 @@ Screen codes can be generated similar using "s" or "S" prefix.
 
 Input from the console will also be translated accordingly.
 
-The character map for string and char constants can be changed with a pragma to match a custon character set or PETSCII.
+The character map for string and char constants can be changed with a pragma to match a custom character set or PETSCII.
 
     #pragma charmap(char, code [,count])
 
@@ -308,7 +308,7 @@ Set optimizer options that are active for the functions after it
 
 ### Loop unrolling
 
-Loop unrolling on 6502 is hard to decide for the compiler.  Memory is usually scarce, so it only does it in realy obvious cases (and in less obvious cases for O3).  On the other hand unrolling is required to get good performance in e.g. scrolling code.  Therefore the compiler offers an unrolling pragma, that can be used to specifiy the amount of unrolling either as a number or "full" for complete.
+Loop unrolling on 6502 is hard to decide for the compiler.  Memory is usually scarce, so it only does it in really obvious cases (and in less obvious cases for O3).  On the other hand unrolling is required to get good performance in e.g. scrolling code.  Therefore the compiler offers an unrolling pragma, that can be used to specify the amount of unrolling either as a number or "full" for complete.
 
 The following code scrolls the screen to the left, and completely unrolls the inner vertical loop.
 
@@ -320,12 +320,12 @@ The following code scrolls the screen to the left, and completely unrolls the in
 			screen[y][x] = screen[y][x + 1];
 	}
 
-Sometimes it is better to unroll the loop not in the order it normaly executes, but using page size chunks.  When e.g. filling a C64 screen with a loop:
+Sometimes it is better to unroll the loop not in the order it normally executes, but using page size chunks.  When e.g. filling a C64 screen with a loop:
 
 	for(int i=0; i<1000; i++)
 		Screen[i] = ' ';
 		
-Unrolling this loop would not help, the index would still not fit into the 8 bit x or y register.  Using a page level unroll, the compiler will unroll the loop into four stores, each 250 bytes appart, and use the y or x register for indexing:
+Unrolling this loop would not help, the index would still not fit into the 8 bit x or y register.  Using a page level unroll, the compiler will unroll the loop into four stores, each 250 bytes apart, and use the y or x register for indexing:
 
 	#pragma unroll(page)
 	for(int i=0; i<1000; i++)
@@ -441,7 +441,7 @@ This sample fills a single screen column with a given color, by generating 25 as
 	#undef ry
 	}
 	
-This sample initialy assigns the value 0 to the pre processor macro ry and increments it each time the loop body is replicated.  The loop generates 25 copies of the body, each with a different value for ry.
+This sample initially assigns the value 0 to the pre processor macro ry and increments it each time the loop body is replicated.  The loop generates 25 copies of the body, each with a different value for ry.
 
 	
 ### Linker control
@@ -584,7 +584,7 @@ And for bank one
 
 ### Inline Assembler
 
-Inline assembler can be embedded inside of any functions, regardles of their compilation target of byte code or native.  
+Inline assembler can be embedded inside of any functions, regardless of their compilation target of byte code or native.  
 
 #### Accessing variables in assembler
 
@@ -708,19 +708,19 @@ Moves the BASIC ROM, Kernal ROM and the IO area out of the way and allows the us
 
 #### Custom character set "charsetlo.c"
 
-Embedds a custom character set into the prg file at 0x2000..0x27ff and switches the character set base address in the VIC to this address.  The code and data portion of the compiled program is split into two areas to make room for this fixed location data.
+Embeds a custom character set into the prg file at 0x2000..0x27ff and switches the character set base address in the VIC to this address.  The code and data portion of the compiled program is split into two areas to make room for this fixed location data.
 
 #### Himem character set "charsethi.c"
 
-Embedds a custom character set into the prg file at 0xc800..0xcfff and switches the character set base address in the VIC to this address.
+Embeds a custom character set into the prg file at 0xc800..0xcfff and switches the character set base address in the VIC to this address.
   
 #### Copy character set "charsetcopy.c"
 
-Embedds a custom character set into the prg file at 0xc000..0xc7ff and copies it to 0xd000 on startup.  This frees this area for stack and heap usage.
+Embeds a custom character set into the prg file at 0xc000..0xc7ff and copies it to 0xd000 on startup.  This frees this area for stack and heap usage.
 
 #### Copy character set "charsetexpand.c"
 
-Embedds a custom character set into the prg file at 0xc000..0xc7ff using lz comression and expands it to 0xd000 on startup.  This frees this area for stack and heap usage.
+Embeds a custom character set into the prg file at 0xc000..0xc7ff using lz compression and expands it to 0xd000 on startup.  This frees this area for stack and heap usage.
 
 #### Custom character set "charsetload.c"
 
@@ -918,7 +918,7 @@ Expands a 2D 4x4 tile grid at any scroll speed.  Uses a raster IRQ to limit the
 
 ### Moving image blocks "sprites"
 
-Sprites are independed image blocks, such as players, missiles or enemies that can be shown on top of the background.
+Sprites are independent image blocks, such as players, missiles or enemies that can be shown on top of the background.
 
 #### Control a sprite with a joystick "joycontrol.c"
 
@@ -1071,7 +1071,7 @@ The intermediate code generator takes the declaration graph and converts it into
 
 #### Intermediate Code Optimizer
 
-The intermediate code optimizer works on the intermediat code to perform machine agnostic optimizations, such as value forwarding, strength reduction or loop unrolling.  It also tries to build evaluation trains to reduce the amount of temporaries required for execution.
+The intermediate code optimizer works on the intermediate code to perform machine agnostic optimizations, such as value forwarding, strength reduction or loop unrolling.  It also tries to build evaluation trains to reduce the amount of temporaries required for execution.
 
 #### Native/Bytecode Generator
 
@@ -1087,7 +1087,7 @@ This stage translates the symbolic assembler / bytecode into binary and makes it
 
 #### Linker
 
-The linker determines all objects that are referenced and discards objects that are not.  It then places the objects into their sections and spreads the sections over the regions.  Then all references between the objects are resolved.  Finaly the prg or crt file is written.
+The linker determines all objects that are referenced and discards objects that are not.  It then places the objects into their sections and spreads the sections over the regions.  Then all references between the objects are resolved.  Finally the prg or crt file is written.
 
 #### Listing generator
 
@@ -1172,7 +1172,7 @@ The sum of the array elements is only needed when the condition is false:
 		return x;
 	}
 
-In this case, the evaluation of the sum is moved into an artifical else case:
+In this case, the evaluation of the sum is moved into an artificial else case:
 
 	test:
 		090e LDA P0
diff --git a/include/fixmath.h b/include/fixmath.h
index 9c913af..c6efaa8 100644
--- a/include/fixmath.h
+++ b/include/fixmath.h
@@ -1,7 +1,7 @@
 #ifndef FIXMATH_H
 #define FIXMATH_H
 
-// Multiply two unsinged 16bit numbers and return a 32bit result
+// Multiply two unsigned 16bit numbers and return a 32bit result
 __native unsigned long lmul16u(unsigned x, unsigned y);
 
 // Multiply two signed 16bit numbers and return a signed 32bit result
diff --git a/include/nes/neslib.c b/include/nes/neslib.c
index 872573c..c63a014 100644
--- a/include/nes/neslib.c
+++ b/include/nes/neslib.c
@@ -94,7 +94,7 @@ int main(void)
 	ppu.scroll = 0x00;
 	ppu.oamaddr = 0x00;
 
-	//	detech PAL or NTSC based on Blarg code.
+	//	detect PAL or NTSC based on Blarg code.
 
 	ppu_wait_nmi();
 	
diff --git a/oscar64/GlobalAnalyzer.cpp b/oscar64/GlobalAnalyzer.cpp
index 86ff108..0553faf 100644
--- a/oscar64/GlobalAnalyzer.cpp
+++ b/oscar64/GlobalAnalyzer.cpp
@@ -256,7 +256,7 @@ void GlobalAnalyzer::CheckFastcall(Declaration* procDec)
 			Declaration* dec = procDec->mBase->mParams;
 			while (dec)
 			{
-				// Check for paramter crossing boundary
+				// Check for parameter crossing boundary
 				if (nbase + nparams < numfpzero && nbase + nparams + dec->mBase->mSize > numfpzero)
 				{
 					npalign = numfpzero - (nbase + nparams);
diff --git a/oscar64/InterCode.cpp b/oscar64/InterCode.cpp
index c67799d..7b8f4eb 100644
--- a/oscar64/InterCode.cpp
+++ b/oscar64/InterCode.cpp
@@ -9547,7 +9547,7 @@ bool InterCodeBasicBlock::LoadStoreForwarding(const GrowingInstructionPtrArray&
 
 				if (nins && t >= 0)
 				{
-					// Check self destruction of source operaand
+					// Check self destruction of source operand
 					int l = 0;
 					while (l < nins->mNumOperands && t != nins->mSrc[l].mTemp)
 						l++;
@@ -14985,13 +14985,13 @@ void InterCodeProcedure::BuildDataFlowSets(void)
 	mEntryBlock->BuildLocalTempSets(numTemps);
 
 	//
-	// Build set of globaly provided temporaries
+	// Build set of globally provided temporaries
 	//
 	ResetVisited();
 	mEntryBlock->BuildGlobalProvidedTempSet(NumberSet(numTemps), NumberSet(numTemps));
 
 	//
-	// Build set of globaly required temporaries, might need
+	// Build set of globally required temporaries, might need
 	// multiple iterations until it stabilizes
 	//
 	NumberSet	totalRequired(numTemps);
@@ -15018,7 +15018,7 @@ void InterCodeProcedure::RenameTemporaries(void)
 	numRename = 0;
 
 	//
-	// First localy rename all temporaries
+	// First locally rename all temporaries
 	//
 	ResetVisited();
 	mEntryBlock->LocalRenameRegister(mRenameTable, numRename);
@@ -15173,7 +15173,7 @@ void InterCodeProcedure::TempForwarding(bool reverse, bool checkloops)
 	}
 
 	//
-	// Now remove needless temporary moves, that apear due to
+	// Now remove needless temporary moves, that appear due to
 	// stack evaluation
 	//
 	mTempForwardingTable.SetSize(numTemps);
@@ -15774,7 +15774,7 @@ void InterCodeProcedure::Close(void)
 	DisassembleDebug("machine value forwarding");
 
 	//
-	// Now remove needless temporary moves, that apear due to
+	// Now remove needless temporary moves, that appear due to
 	// stack evaluation
 	//
 	mTempForwardingTable.Reset();
diff --git a/oscar64/InterCodeGenerator.cpp b/oscar64/InterCodeGenerator.cpp
index 037b61f..7bf4420 100644
--- a/oscar64/InterCodeGenerator.cpp
+++ b/oscar64/InterCodeGenerator.cpp
@@ -913,7 +913,7 @@ InterCodeGenerator::ExValue InterCodeGenerator::TranslateInline(Declaration* pro
 			vr = Dereference(proc, texp, block, vr, 1);
 
 			if (vr.mReference != 1)
-				mErrors->Error(exp->mLeft->mLocation, EERR_NOT_AN_LVALUE, "Not an adressable expression");
+				mErrors->Error(exp->mLeft->mLocation, EERR_NOT_AN_LVALUE, "Not an addressable expression");
 
 			if (vp.mTemp != vr.mTemp)
 			{
@@ -1339,7 +1339,7 @@ InterCodeGenerator::ExValue InterCodeGenerator::TranslateExpression(Declaration*
 				if (vl.mReference != 1)
 					mErrors->Error(exp->mLeft->mLocation, EERR_NOT_AN_LVALUE, "Not a left hand expression");
 				if (vr.mReference != 1)
-					mErrors->Error(exp->mLeft->mLocation, EERR_NOT_AN_LVALUE, "Not an adressable expression");
+					mErrors->Error(exp->mLeft->mLocation, EERR_NOT_AN_LVALUE, "Not an addressable expression");
 
 				if (vr.mTemp != vl.mTemp)
 				{
@@ -2566,7 +2566,7 @@ InterCodeGenerator::ExValue InterCodeGenerator::TranslateExpression(Declaration*
 						vr = Dereference(proc, texp, block, vr, 1);
 
 						if (vr.mReference != 1)
-							mErrors->Error(exp->mLeft->mLocation, EERR_NOT_AN_LVALUE, "Not an adressable expression");
+							mErrors->Error(exp->mLeft->mLocation, EERR_NOT_AN_LVALUE, "Not an addressable expression");
 
 						if (vp.mTemp != vr.mTemp)
 						{
diff --git a/oscar64/NativeCodeGenerator.cpp b/oscar64/NativeCodeGenerator.cpp
index 3384721..f766236 100644
--- a/oscar64/NativeCodeGenerator.cpp
+++ b/oscar64/NativeCodeGenerator.cpp
@@ -23885,7 +23885,7 @@ bool NativeCodeBasicBlock::MoveLoadIndirectBypassYUp(int at)
 	// ldy #imm
 	// lda (t0), y
 
-	// move up, and keep A in Y for the intervall	
+	// move up, and keep A in Y for the interval	
 
 	int	j = at - 1;
 	while (j >= 3)
@@ -32183,7 +32183,7 @@ bool NativeCodeBasicBlock::PeepHoleOptimizer(NativeCodeProcedure* proc, int pass
 #endif
 
 		// 
-		// shorten x/y register livetime
+		// shorten x/y register lifetime
 
 #if 1
 		//
@@ -39773,7 +39773,7 @@ void NativeCodeProcedure::Optimize(void)
 #if 1
 		if (cnt > 190)
 		{
-			printf("Opps\n");
+			printf("Oops\n");
 		}
 #endif
 
@@ -39900,13 +39900,13 @@ void NativeCodeProcedure::BuildDataFlowSets(void)
 	mBlocks[0]->BuildLocalRegSets();
 
 	//
-	// Build set of globaly provided temporaries
+	// Build set of globally provided temporaries
 	//
 	ResetVisited();
 	mBlocks[0]->BuildGlobalProvidedRegSet(NumberSet(NUM_REGS));
 
 	//
-	// Build set of globaly required temporaries, might need
+	// Build set of globally required temporaries, might need
 	// multiple iterations until it stabilizes
 	//
 	NumberSet	totalRequired(NUM_REGS);
@@ -40535,7 +40535,7 @@ NativeCodeGenerator::Runtime& NativeCodeGenerator::ResolveRuntime(const Ident* i
 		i++;
 	Location	loc;
 	if (i == mRuntime.Size() || !mRuntime[i].mLinkerObject)
-		mErrors->Error(loc, EERR_RUNTIME_CODE, "Undefied runtime function", ident->mString);
+		mErrors->Error(loc, EERR_RUNTIME_CODE, "Undefined runtime function", ident->mString);
 	return mRuntime[i];
 }
 
diff --git a/oscar64/Parser.cpp b/oscar64/Parser.cpp
index babfccd..efcc14b 100644
--- a/oscar64/Parser.cpp
+++ b/oscar64/Parser.cpp
@@ -739,7 +739,7 @@ Expression* Parser::ParseInitExpression(Declaration* dtype)
 			if (dtype->mIdent)
 				mErrors->Error(mScanner->mLocation, EERR_UNDEFINED_OBJECT, "Constant for undefined type", dtype->mIdent);
 			else
-				mErrors->Error(mScanner->mLocation, EERR_UNDEFINED_OBJECT, "Constant for undefined annonymous type");
+				mErrors->Error(mScanner->mLocation, EERR_UNDEFINED_OBJECT, "Constant for undefined anonymous type");
 		}
 		if (ConsumeTokenIf(TK_OPEN_BRACE))
 		{
diff --git a/oscar64/oscar64.cpp b/oscar64/oscar64.cpp
index f6655f1..3b900c1 100644
--- a/oscar64/oscar64.cpp
+++ b/oscar64/oscar64.cpp
@@ -447,7 +447,7 @@ int main2(int argc, const char** argv)
 					{
 						if (!d64->WriteFile(dataFiles[i], dataFileCompressed[i]))
 						{
-							printf("Could not embedd disk file %s\n", dataFiles[i]);
+							printf("Could not embed disk file %s\n", dataFiles[i]);
 							return 20;
 						}
 					}
diff --git a/samples/fractals/mbfixed.c b/samples/fractals/mbfixed.c
index 570a64d..22944a2 100644
--- a/samples/fractals/mbfixed.c
+++ b/samples/fractals/mbfixed.c
@@ -9,7 +9,7 @@
 #define Color	((char *)0xc800)
 #define Color2	((char *)0xd800)
 
-// Bit patters for eight different color pairs
+// Bit patterns for eight different color pairs
 char colors[] = {
 	0xff, 0xff, 
 	0xee, 0xbb,
diff --git a/samples/fractals/mbmulti.c b/samples/fractals/mbmulti.c
index 270a7be..ec0bdcd 100644
--- a/samples/fractals/mbmulti.c
+++ b/samples/fractals/mbmulti.c
@@ -8,7 +8,7 @@
 #define Color	((char *)0xc800)
 #define Color2	((char *)0xd800)
 
-// Bit patters for eight different color pairs
+// Bit patterns for eight different color pairs
 char colors[] = {
 	0xff, 0xff, 
 	0xee, 0xbb,
diff --git a/samples/fractals/mbmulti3d.c b/samples/fractals/mbmulti3d.c
index 7cb3b6b..76b200e 100644
--- a/samples/fractals/mbmulti3d.c
+++ b/samples/fractals/mbmulti3d.c
@@ -9,7 +9,7 @@
 #define Color1	((char *)0xc800)
 #define Color2	((char *)0xd800)
 
-// Bit patters for two different color pairs and eight shades
+// Bit patterns for two different color pairs and eight shades
 byte	colors[2][17] = 
 {
 	{0x00, 
diff --git a/samples/fractals/mbzoom.c b/samples/fractals/mbzoom.c
index 3ea8ab0..f807e38 100644
--- a/samples/fractals/mbzoom.c
+++ b/samples/fractals/mbzoom.c
@@ -53,7 +53,7 @@ inline unsigned long ssquare(unsigned x)
 	sum -= (unsigned long)a2 << 8;
 	sum -= (unsigned long)b2 << 8;
 
-	// And finaly the complete result
+	// And finally the complete result
 	return sum;
 }
 
@@ -116,7 +116,7 @@ inline char fcolor(int xz, int yz)
 
 	for(int i=0; i<32; i++)
 	{
-		// Build squares of real and imaginery component
+		// Build squares of real and imaginary component
 		long xx = sq(x), yy = sq(y), xxyy = sq(x + y);
 
 		// Use squares to check for exit condition of sure
diff --git a/samples/games/connectfour.c b/samples/games/connectfour.c
index 09f6968..c7e9bc8 100644
--- a/samples/games/connectfour.c
+++ b/samples/games/connectfour.c
@@ -40,7 +40,7 @@ byte * const Sprites = (byte *)0xd800;
 
 struct Board
 {	
-	char	fcols[48];	// Pieces in the 6x7 grid using 48 to have a multplier of 8
+	char	fcols[48];	// Pieces in the 6x7 grid using 48 to have a multiplier of 8
 	char	ffree[7];	// Number of free places in each column
 }	board;
 
@@ -291,7 +291,7 @@ char frows[5][69];
 
 #pragma align(fscore, 256)
 
-// Tables for opening libary for computer move 1, 2, 3 and 4
+// Tables for opening library for computer move 1, 2, 3 and 4
 
 const char open1 = 3;
 const char open2[4 * 7] = 
@@ -438,7 +438,7 @@ void ai_init(void)
 	}
 }
 
-// Evaluate the current board state for te player
+// Evaluate the current board state for the player
 
 int board_eval(bool player)
 {
diff --git a/samples/games/hscrollshmup.c b/samples/games/hscrollshmup.c
index edad656..236494d 100644
--- a/samples/games/hscrollshmup.c
+++ b/samples/games/hscrollshmup.c
@@ -483,7 +483,7 @@ inline void shot_draw(char * dp, char i, char xp, char yp)
 	// We know there are only 20 shots
 	__assume(i < 20);
 
-	// Character code for background with overlayed shot
+	// Character code for background with overlaid shot
 	dp[xp] = i | 0xe0;
 
 	// Source and target character code
@@ -523,7 +523,7 @@ void shot_add(int sx, char sy, sbyte dx)
 	s->ry = ry;
 	s->dx = dx;
 
-	// Horizontal start postion based on player sprite
+	// Horizontal start position based on player sprite
 	if (dx < 0)
 	{
 		char	x = (sx) >> 3;
@@ -669,7 +669,7 @@ void tiles_draw(unsigned x)
 
 }
 
-// Intitialize player
+// Initialize player
 void player_init(void)
 {
 	// Set up start position and direction
@@ -830,7 +830,7 @@ void enemies_move(void)
 	}
 }
 
-// Spwan one new enemy outside screen
+// Spawn one new enemy outside screen
 void enemies_spawn(void)
 {
 	// Seed for enemy
diff --git a/samples/games/maze3d.c b/samples/games/maze3d.c
index 9341990..c8fd9fd 100644
--- a/samples/games/maze3d.c
+++ b/samples/games/maze3d.c
@@ -52,7 +52,7 @@ bool FlipIndex;
 // Position and direction inside the maze
 sbyte	px = 1, py = 3, dx = 1, dy = 0;
 
-// Distance of blocks to the side, relative to the center ot the screen
+// Distance of blocks to the side, relative to the center of the screen
 // for full and half step
 static const char zxdist0[] = {18, 6, 4, 3, 2, 1, 0};
 static const char zxdist1[] = { 9, 5, 3, 2, 1, 0, 0};
diff --git a/samples/games/missile.c b/samples/games/missile.c
index 07d2c81..990f622 100644
--- a/samples/games/missile.c
+++ b/samples/games/missile.c
@@ -74,7 +74,7 @@ char			nmissiles;
 Missile			icbms[16];
 // First free and first used ICBM
 Missile		*	ifree, * iused;
-// Speed and number of ICBMs still incomming
+// Speed and number of ICBMs still incoming
 char			icbmspeed, icbmcount;
 
 // Cities not yet destroyed
@@ -95,7 +95,7 @@ void status_init(void)
 	}
 }
 
-// Expand an 8x8 charactor to 16x16 on screen
+// Expand an 8x8 character to 16x16 on screen
 void char_put(char cx, char cy, char c, char color)
 {
 	// Get pointer to glyph data
@@ -387,7 +387,7 @@ void missile_animate(void)
 	}
 }
 
-// Initialize incomming ICBM list
+// Initialize incoming ICBM list
 void icbm_init(void)
 {
 	iused = nullptr;
@@ -697,7 +697,7 @@ void game_play(void)
 	// Check if fire request
 	if (CrossP)
 	{
-		// Find lauch site
+		// Find launch site
 		int	sx = 160;
 		if (CrossX < 120)
 			sx = 24;
@@ -729,7 +729,7 @@ void game_play(void)
 		// Launch ICBM
 		icbm_start((rand() & 0xff) + 32, 0, cx, 184);
 
-		// Next lauch time
+		// Next launch time
 		TheGame.count = 8 + (rand() & 63);
 	}
 
@@ -761,7 +761,7 @@ void game_loop(void)
 	case GS_PLAYING:
 		game_play();
 
-		// Check for level and game end coditions
+		// Check for level and game end conditions
 		if (!icbmcount && !iused && !eused)
 			game_state(GS_BONUS);
 		else if (ncities == 0)
diff --git a/samples/memmap/charsetcopy.c b/samples/memmap/charsetcopy.c
index 0606869..76116d6 100644
--- a/samples/memmap/charsetcopy.c
+++ b/samples/memmap/charsetcopy.c
@@ -37,7 +37,7 @@ int main(void)
 	// Install the trampoline
 	mmap_trampoline();
 
-	// make all of RAM visibile to the CPU
+	// make all of RAM visible to the CPU
 	mmap_set(MMAP_RAM);
 
 	// copy the font
diff --git a/samples/memmap/charsetexpand.c b/samples/memmap/charsetexpand.c
index ce8293f..0026072 100644
--- a/samples/memmap/charsetexpand.c
+++ b/samples/memmap/charsetexpand.c
@@ -39,7 +39,7 @@ int main(void)
 	// Install the trampoline
 	mmap_trampoline();
 
-	// make all of RAM visibile to the CPU
+	// make all of RAM visible to the CPU
 	mmap_set(MMAP_RAM);
 
 	// expand the font
diff --git a/samples/particles/fireworks_hires.c b/samples/particles/fireworks_hires.c
index 1ce3f5d..a96cdc7 100644
--- a/samples/particles/fireworks_hires.c
+++ b/samples/particles/fireworks_hires.c
@@ -28,7 +28,7 @@ static char * Hirows[25];
 static const char setmask[8] = {0x80, 0x40, 0x20, 0x10, 0x08, 0x04, 0x02, 0x01};
 static const char clrmask[8] = {0x7f, 0xbf, 0xdf, 0xef, 0xf7, 0xfb, 0xfd, 0xfe};
 
-// Set a pixel at the given coordiate
+// Set a pixel at the given coordinate
 void pix_set(unsigned px, unsigned py)
 {
 	// Give the compiler a hand
@@ -42,7 +42,7 @@ void pix_set(unsigned px, unsigned py)
 	dp[py & 7] |= setmask[px & 7];
 }
 
-// Clear a pixel at the given coordiate
+// Clear a pixel at the given coordinate
 void pix_clr(unsigned px, unsigned py)
 {
 	__assume(px < 320);
diff --git a/samples/particles/fireworks_ptr.c b/samples/particles/fireworks_ptr.c
index afd2672..57aefa2 100644
--- a/samples/particles/fireworks_ptr.c
+++ b/samples/particles/fireworks_ptr.c
@@ -29,7 +29,7 @@ static char * Hirows[25];
 static const char setmask[8] = {0xc0, 0xc0, 0x30, 0x30, 0x0c, 0x0c, 0x03, 0x03};
 static const char clrmask[8] = {0x3f, 0x3f, 0xcf, 0xcf, 0xf3, 0xf3, 0xfc, 0xfc};
 
-// Set a pixel at the given coordiate
+// Set a pixel at the given coordinate
 void pix_set(unsigned px, unsigned py, char pat)
 {
 	__assume(px < 320);
@@ -43,7 +43,7 @@ void pix_set(unsigned px, unsigned py, char pat)
 	dp[ly + 1] = dp[ly + 0] |= setmask[px & 7] & pat;
 }
 
-// Clear a pixel at the given coordiate
+// Clear a pixel at the given coordinate
 void pix_clr(unsigned px, unsigned py)
 {
 	__assume(px < 320);
diff --git a/samples/particles/fireworks_stripe.c b/samples/particles/fireworks_stripe.c
index fcaad75..46967ca 100644
--- a/samples/particles/fireworks_stripe.c
+++ b/samples/particles/fireworks_stripe.c
@@ -30,7 +30,7 @@ static char * Hirows[25];
 static const char setmask[4] = {0xc0, 0x30, 0x0c, 0x03};
 static const char clrmask[4] = {0x3f, 0xcf, 0xf3, 0xfc};
 
-// Set a pixel at the given coordiate
+// Set a pixel at the given coordinate
 void pix_set(char px, char py, char pat)
 {
 	__assume(px < 160);
@@ -44,7 +44,7 @@ void pix_set(char px, char py, char pat)
 	dp[ly + 1] = dp[ly + 0] |= setmask[px & 3] & pat;
 }
 
-// Clear a pixel at the given coordiate
+// Clear a pixel at the given coordinate
 void pix_clr(char px, char py)
 {
 	__assume(px < 160);
diff --git a/samples/scrolling/cgrid8way.c b/samples/scrolling/cgrid8way.c
index 27c64b0..241e288 100644
--- a/samples/scrolling/cgrid8way.c
+++ b/samples/scrolling/cgrid8way.c
@@ -371,7 +371,7 @@ int main(void)
 
 	char	gridX = 0, gridY = 0;
 
-	// Inital drwaing of the screen
+	// Initial drawing of the screen
 	char	*	dp = Screen, * cp = Color;
 	for(char y=0; y<25; y++)
 	{
diff --git a/samples/scrolling/grid2d.c b/samples/scrolling/grid2d.c
index 0b4122c..58a835e 100644
--- a/samples/scrolling/grid2d.c
+++ b/samples/scrolling/grid2d.c
@@ -124,7 +124,7 @@ void expandrow3(char * dp, const char * grid, char ly)
 	dp[39] = quad[2][gi];
 }
 
-// expand the visibile portion of the screen at the
+// expand the visible portion of the screen at the
 // given char offset into the tiles
 void expand(char * dp, const char * grid, char px, char py)
 {
diff --git a/samples/sprites/joycontrol.c b/samples/sprites/joycontrol.c
index f04f0ed..36a16db 100644
--- a/samples/sprites/joycontrol.c
+++ b/samples/sprites/joycontrol.c
@@ -15,7 +15,7 @@ int main(void)
 	// Copy the sprite data
 	memcpy(SpriteData, spdata, 128);
 
-	// Initalize the sprite system
+	// Initialize the sprite system
 	spr_init((char*)0x0400);
 
 	// Center screen position
diff --git a/samples/sprites/multiplexer.c b/samples/sprites/multiplexer.c
index 14744c6..2dfe906 100644
--- a/samples/sprites/multiplexer.c
+++ b/samples/sprites/multiplexer.c
@@ -46,7 +46,7 @@ int main(void)
 	// initialize sprite multiplexer
 	vspr_init(Screen);
 
-	// initalize sprites
+	// initialize sprites
 	for(int i=0; i<16; i++)
 	{
 		vspr_set(i, 30 + 16 * i, 220 - 8 * i, (unsigned)&(spriteset[0]) / 64 + i, (i & 7) + 8);
diff --git a/samples/sprites/sprmux32.c b/samples/sprites/sprmux32.c
index 965cd57..0c96596 100644
--- a/samples/sprites/sprmux32.c
+++ b/samples/sprites/sprmux32.c
@@ -70,7 +70,7 @@ int main(void)
 	// initialize sprite multiplexer
 	vspr_init(Screen);
 
-	// initalize sprites
+	// initialize sprites
 	for(char i=0; i<32; i++)
 	{
 		vspr_set(i, 30 + 8 * i, 220 - 4 * i, (unsigned)&(spriteset[0]) / 64 + (i & 15), (i & 7) + 8);
diff --git a/samples/sprites/sprmux64.c b/samples/sprites/sprmux64.c
index d34434f..8191f0b 100644
--- a/samples/sprites/sprmux64.c
+++ b/samples/sprites/sprmux64.c
@@ -163,7 +163,7 @@ int main(void)
 		rirq_call(spmux + i, 2, setspr);
 
 		// Place raster interrupt 16 lines before sprite start to
-		// give it enough time for procesing
+		// give it enough time for processing
 		rirq_set(i, 36 + 25 * i, spmux + i);
 	}