Merge branch 'Lameguy64:master' into psxmdec

7 files changed, 110 insertions, 517 deletions

diff --git a/CHANGELOG.md b/CHANGELOG.md
index 6ab68d2..c2e6d1c 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -19,6 +19,12 @@ to ensure the changelog can be parsed correctly.
 
 -------------------------------------------------------------------------------
 
+## 2022-03-30:
+
+lameguy64:
+
+- indev: psxmdec prototype is now functional through psxpress.
+
 ## 2022-03-25: 0.19
 
 lameguy64:
diff --git a/README.md b/README.md
index 448a3fa..29e73a0 100644
--- a/README.md
+++ b/README.md
@@ -33,40 +33,42 @@ in custom MIPS assembly instead of equivalents found in the BIOS ROM, for both
 stability (the BIOS `libc` implementation of the PlayStation is actually buggy)
 and performance reasons.
 
+
 ## Notable features
 
-As of November 28, 2021
+As of March 28, 2022
 
-* Extensive GPU support with polygon, line and sprite primitives, high-speed
-  DMA transfers for VRAM data and ordering tables. All video modes for both
-  NTSC and PAL standards also supported with fully adjustable display area
-  and automatic video standard detection based on last GPU mode. No BIOS
-  ROM checks used.
+* Extensive GPU support with lines, flat shaded or textured polygon and sprite
+  primitives, high-speed DMA for VRAM transfers and ordering tables. All video
+  modes for both NTSC and PAL standards also supported with fully adjustable
+  display area and automatic video standard detection based on last GPU mode.
 
 * Extensive GTE support with rotate, translate, perspective correction and
-  lighting fully supported via C and assembly GTE macros paired with high
-  speed matrix and vector functions. All calculations performed in fixed
-  point integer math, not a single float defined.
+  lighting calculation fully supported through C and/or assembly GTE macros
+  paired with high speed matrix and vector helper functions. All calculations
+  performed in fixed point integer math, not a single float used.
 
-* Flexible interrupt service routine with easy to use callback mechanism for
-  simplified handling and hooking of hardware and DMA interrupts, no crude
+* Flexible interrupt service subsystem with easy to use callback mechanism for
+  simplified handling and hooking of hardware and DMA interrupts. No crude
   event handler hooks or kernel hacks providing great compatibility with
-  HLE BIOS implementations. Should work without issue for loader/menu type
-  programs as well.
+  HLE BIOS implementations and loader/menu type homebrew programs.
 
+* BIOS controller functions for polling controller input work as intended
+  thanks to proper handling of hardware interrupts. No crude direct I/O polling
+  of controllers in the main loop.
+  
 * Complete Serial I/O support with SIOCONS driver for tty stdin/stdout
-  console access. Hardware flow control also supported.
+  console access. Hardware flow control supported.
 
-* BIOS controller functions for polling controller input work as intended
-  thanks to proper handling of hardware interrupts. No crude manual polling
-  of controllers in a main loop. BIOS memory card functions may also work,
-  but not yet tested extensively.
+* Full CD-ROM support using libpsxcd featuring data read, CD audio and XA audio
+  playback, built-in ISO9660 file system parser with no file count limit
+  (classic ISO9660 only, no Rock Ridge or Joliet extensions) and multi-session.
+  
+* Preliminary MDEC support implemented with libpsxpress (no VLC decoding yet).
+  Sample encoder included.
 
-* Full CD-ROM support via libpsxcd with data read, CD audio and XA audio
-  playback support. Features built-in ISO9660 file system parser for locating
-  and querying files and directories. Supports directories containing more
-  than 30 files (classic ISO9660 only, no Rock Ridge or Joliet extensions)
-  and also supports reading new sessions on a multi-session disc.
+* Can target Konami System 573 arcade hardware with limited support
+  (see examples/io/system573/main.c for details)
 
 * Experimental support for compiling separate sections of an executable into
   shared library files (DLLs) and linking them dynamically at runtime, plus
@@ -74,16 +76,17 @@ As of November 28, 2021
   generated at build time.
 
 * Uses Sony SDK library syntax for familiarity to experienced programmers
-  and to make porting existing homebrew projects to PSn00bSDK easier.
+  and makes porting existing homebrew projects to PSn00bSDK easier.
 
 * Works on real hardware and most popular emulators.
 
 * Fully expandable and customizable to your heart's content.
 
+
 ## Obtaining PSn00bSDK
 
 Prebuilt PSn00bSDK packages for Windows and Linux are available through GitHub
-Actions and include the libraries, a copy of the GCC MIPS toolchain, command
+Actions which includes the libraries, a copy of the GCC MIPS toolchain, command
 line tools, examples and documentation. CMake is **not** included and must be
 installed separately, either from [its website](https://cmake.org/download) or
 via MSys2 or your distro's package manager.
@@ -91,6 +94,7 @@ via MSys2 or your distro's package manager.
 See [installation.md](doc/installation.md) for a quick start guide and for
 details on how to build the SDK yourself.
 
+
 ## Examples
 
 There are a few examples and complete source code of `n00bdemo` included in the
@@ -98,29 +102,29 @@ There are a few examples and complete source code of `n00bdemo` included in the
 contributed example programs are welcome.
 
 There's also [Lameguy's PlayStation Programming Tutorial Series](http://lameguy64.net/tutorials/pstutorials)
-for learning how to program for the PlayStation. The tutorials should still
+for learning how to program for the PlayStation. Much of the tutorials should
 apply to PSn00bSDK.
 
+
 ## To-do List
 
 * psxspu: Plenty of work to be done. Hardware timer driven sound/music
   system may need to be implemented (an equivalent to the Ss* series of
-  functions in libspu basically). Need to figure out the correct frequency
-  table for playing sounds in musical note notation. Functions that make use of
-  the SPU RAM interrupt feature to play or capture streamed audio should also
-  be added.
+  functions in libspu basically). Functions that make use of the SPU RAM
+  interrupt feature to play or capture streamed audio should also be added.
 
 * psxcd: Implement a command queue mechanism for the CD-ROM?
 
 * libc: Improve the memory allocation framework with multiple allocators, GC
   and maybe helpers to manage swapping between main RAM and VRAM/SPU RAM.
 
-* Support for MDEC, and tooling to transcode videos to .STR files (either
-  reimplementing the container and compression format used by the Sony SDK, or
-  a custom format with better compression).
+* Further support for MDEC, and tooling to transcode videos to .STR files
+  (either reimplementing the container and compression format used by the Sony
+  SDK, or a custom format with better compression).
 
 * Pad and memory card libraries that don't use the BIOS routines.
 
+
 ## Credits
 
 Main developer/author/whatever:
diff --git a/indev/psxmdec/main.c b/indev/psxmdec/main.c
index f4f0f51..25baf11 100644
--- a/indev/psxmdec/main.c
+++ b/indev/psxmdec/main.c
@@ -1,17 +1,18 @@
-#include <sys/types.h>

+#include <stdint.h>

 #include <stdio.h>

-#include <string.h>

 #include <stdlib.h>

-#include <psxgte.h>

+#include <stddef.h>

 #include <psxgpu.h>

+#include <psxpress.h>

+#include <hwregs_c.h>

 

-/* mdec.s */

-extern void mdec_reset( void );

-extern void mdec_setscale( void );

-extern void mdec_setquants( void );

-extern void mdec_cmd( unsigned int cmd );

-extern void mdec_in( void *src, int blocks );

-extern void mdec_out( void *dst, int blocks );

+#define SCREEN_XRES		320

+#define SCREEN_YRES		240

+

+//#define BLOCK_SIZE 8	// Monochrome (8x8), 15bpp display

+//#define BLOCK_SIZE 12	// Monochrome (8x8), 24bpp display

+//#define BLOCK_SIZE 16	// Color (16x16), 15bpp display

+#define BLOCK_SIZE 24	// Color (16x16), 24bpp display

 

 /* vlc.c */

 int DecDCTvlc( unsigned short *mdec_bs, unsigned short *mdec_rl );

@@ -19,173 +20,74 @@ int DecDCTvlc( unsigned short *mdec_bs, unsigned short *mdec_rl );
 /* data.s */

 extern unsigned short bs_data[];

 

-DISPENV disp[2];

-DRAWENV draw[2];

-int db;

-

-void memory_browser(unsigned int addr)

-{

-	int i,j,key;

-	unsigned char *ptr,*pptr;

-	

-	while(1)

-	{

-		/* Set cursor position to top-left */

-		printf("\033[1;1H");

-		printf("MEMVIEW   00 01 02 03 04 05 06 07 08 09 0A 0B 0C 0D 0E 0F  0123456789ABCDEF");

-

-		ptr = (unsigned char*)addr;

-	

-		/* Print contents from current location of memory */

-		for(j=0; j<23; j++)

-		{

-			printf("\n%04X: ", (unsigned int)ptr);

-			pptr = ptr;

-			for(i=0; i<16; i++)

-			{

-				printf("%02X ", *ptr);

-				ptr++;

-			}

-			printf(" ");

-			for(i=0; i<16; i++)

-			{

-				if(( *pptr < 32 ) || ( *pptr > 127 ) )

-				{

-					printf(".");

-				}

-				else

-				{

-					printf("%c", *pptr);

-				}

-				pptr++;

-			}

-		}

-	

-		/* Parse input */

-		while(1)

-		{

-			key = getchar();

-			if( key == 0x1B )

-			{

-				key = getchar();

-				

-				if( key == 0x5B )

-				{

-					key = getchar();

-					if( key == 0x41 )		// Up

-					{

-						addr -= 16;

-						break;

-					}

-					else if( key == 0x42 )	// Down

-					{

-						addr += 16;

-						break;

-					}

-					if( key == 0x35 )		// Page up

-					{

-						addr -= 16*23;

-						break;

-					}

-					else if( key == 0x36 )	// Page down

-					{

-						addr += 16*23;

-						break;

-					}

-				}

-			}

-			

-		}

-	}

-	

-} /* memory_browser */

+DISPENV disp;

 

 void init( void )

 {

-	ResetGraph( 0 );

-	

-	SetDefDispEnv( &disp[0], 0, 0, 320, 240 );

-	SetDefDispEnv( &disp[1], 0, 240, 320, 240 );

+	ResetGraph(0);

+	DecDCTReset(0);

 	

-	SetDefDrawEnv( &draw[0], 0, 240, 320, 240 );

-	SetDefDrawEnv( &draw[1], 0, 0, 320, 240 );

+	SetDefDispEnv(&disp, 0, 0, SCREEN_XRES, SCREEN_YRES);

 	

-	draw[0].isbg = draw[1].isbg = 1;

-	setRGB0( &draw[0], 0, 63, 0 );

-	setRGB0( &draw[1], 0, 63, 0 );

+	disp.isrgb24 = disp.isrgb24 = 1;

 	

-	PutDispEnv( &disp[1] );

-	PutDrawEnv( &draw[1] );

-	db = 0;

+	PutDispEnv(&disp);

+	SetDispMask(1);

 	

 } /* init */

 

-void display( void )

-{

-	DrawSync( 0 );

-	VSync( 0 );

-	

-	PutDispEnv( &disp[db] );

-	PutDrawEnv( &draw[db] );

-	SetDispMask( 1 );

-	

-	db = !db;

-	

-} /* display */

 

 void decode_test( void )

 {

-	unsigned short *out_buff;

-	unsigned short *dec_buff;

-	int dec_len;

-	RECT rect;

-	int xx;

-	

-	out_buff = (unsigned short*)malloc( 131072 );

-	dec_buff = (unsigned short*)malloc( 7680 );

-	

-	memset( out_buff, 0, 131072 );

-	DecDCTvlc( bs_data, out_buff );

-	

-	dec_len = ((unsigned short*)out_buff)[0];

-	

-	printf( "out_buff=%p len=%d\n", out_buff, dec_len );

-	

-	//memory_browser( (unsigned int)(out_buff+2) );

-	mdec_cmd( 0x38000000|dec_len );

-	

-	mdec_in( out_buff+2, 8 );

-	

-	rect.x = 320;	rect.y = 0;

-	rect.w = 16;	rect.h = 240;

-	xx = 0;

-	//while( xx < 320 )

-	{

-		mdec_out( dec_buff, 120 );

-		LoadImage( &rect, (unsigned int*)dec_buff );

-		DrawSync( 0 );

-		xx += 16;

-		rect.x += 16;

+	uint16_t *out_buff;

+	uint16_t dec_len;

+	

+	// Allocate and decode VLC encoded BS data

+	printf("Decode start...\n");

+	out_buff = (uint16_t*)malloc(4*((*(long*)bs_data)+1));

+	DecDCTvlc(bs_data, out_buff);

+	

+	// Print out decompression results

+	dec_len = ((uint16_t*)out_buff)[0];

+	printf("out_buff=%p len=%d\n", out_buff, dec_len);

+	

+	// Initialize MDEC data input

+	MDEC0 = 0x30000000 | dec_len; // 0x38000000 for 15bpp

+	DecDCTinRaw((const uint32_t*)(out_buff+1), dec_len);

+	

+	// Decode image slice-by-slice

+	for (uint32_t x = 0; x < (SCREEN_XRES * 3 / 2); x += BLOCK_SIZE)

+	{	// 24bpp

+		RECT     rect;

+		uint32_t slice[BLOCK_SIZE * SCREEN_YRES / 2];

+		

+		rect.x = x;

+		rect.y = 0;

+		rect.w = BLOCK_SIZE;

+		rect.h = SCREEN_YRES;

+

+		// Configure the MDEC to output to the slice buffer and let it finish

+		// decoding a slice, then upload it to the framebuffer.

+		DecDCTout(slice, BLOCK_SIZE * SCREEN_YRES / 2);

+		DecDCToutSync(0);

+

+		LoadImage(&rect, (u_long *) slice);

+		DrawSync(0);

 	}

 	

+	free(out_buff);

+	

 } /* decode_test */

 

 int main( int argc, const char *argv[] )

 {

 	init();

 	

-	/* init MDEC */

-	mdec_reset();

-	mdec_setscale();

-	mdec_setquants();

-	

 	decode_test();

 	

-	while( 1 )

-	{

-		display();

-	}

+	for (;;)

+		__asm__ volatile("");

 	

-	return( 0 );

+	return 0;

 	

 } /* main */

diff --git a/indev/psxmdec/makefile b/indev/psxmdec/makefile
deleted file mode 100644
index 3b921e0..0000000
--- a/indev/psxmdec/makefile
+++ /dev/null
@@ -1,41 +0,0 @@
-include ../../psn00bsdk-setup.mk

-

-TARGET		= mdectest.elf

-

-CFILES		= $(notdir $(wildcard *.c))

-CPPFILES 	= $(notdir $(wildcard *.cpp))

-AFILES		= $(notdir $(wildcard *.s))

-

-OFILES		= $(addprefix build/,$(CFILES:.c=.o)) \

-			$(addprefix build/,$(CPPFILES:.cpp=.o)) \

-			$(addprefix build/,$(AFILES:.s=.o))

-

-LIBS		= -lpsxgpu -lpsxgte -lpsxspu -lpsxetc -lpsxapi -lc

-			

-CFLAGS		= -g -O2 -fno-builtin -fdata-sections -ffunction-sections

-

-CPPFLAGS	= $(CFLAGS) -fno-exceptions

-

-AFLAGS		= -g -msoft-float

-

-LDFLAGS		= -g -Ttext=0x80010000 -gc-sections \

-			-T $(GCC_BASE)/mipsel-unknown-elf/lib/ldscripts/elf32elmip.x

-			

-all: $(OFILES)

-	$(LD) $(LDFLAGS) $(LIBDIRS) $(OFILES) $(LIBS) -o $(TARGET)

-	elf2x -q $(TARGET)

-	

-build/%.o: %.c

-	@mkdir -p $(dir $@)

-	$(CC) $(CFLAGS) $(INCLUDE) -c $< -o $@

-	

-build/%.o: %.cpp

-	@mkdir -p $(dir $@)

-	$(CXX) $(AFLAGS) $(INCLUDE) -c $< -o $@

-	

-build/%.o: %.s

-	@mkdir -p $(dir $@)

-	$(CC) $(AFLAGS) $(INCLUDE) -c $< -o $@

-	

-clean:

-	rm -rf build $(TARGET) $(TARGET:.elf=.exe)
\ No newline at end of file
diff --git a/indev/psxmdec/mdec.s b/indev/psxmdec/mdec.s
deleted file mode 100644
index a7b5094..0000000
--- a/indev/psxmdec/mdec.s
+++ /dev/null
@@ -1,185 +0,0 @@
-.set noreorder

-

-.include "hwregs_a.h"

-

-.section .text

-

-.global mdec_reset						# Resets the MDEC

-.type mdec_reset, @function

-mdec_reset:

-

-	lui		$a0, IOBASE

-	

-	lui		$v0, 0xE000					# Reset MDEC

-	sw		$v0, MDEC1($a0)

-	nop

-	

-	lui		$v1, 0x8004					# Wait until reset completes

-.Lreset_wait:

-	lw		$v0, MDEC1($a0)

-	nop

-	bne		$v0, $v1, .Lreset_wait

-	nop

-	

-	jr		$ra

-	nop

-	

-

-.global mdec_cmd						# Sends a MDEC command word

-.type mdec_cmd, @function

-mdec_cmd:

-

-	lui		$a1, IOBASE

-	

-.Lcmd_ready:							# Wait until command busy is zero

-	lw		$v0, MDEC1($a1)

-	lui		$v1, 0x2000

-	and		$v0, $v1

-	bnez	$v0, .Lcmd_ready

-	nop

-	

-	sw		$a0, MDEC0($a1)				# Write command word

-	

-	jr		$ra

-	nop

-	

-.global mdec_in							# Transmit data to DMA0 (MDEC in)

-.type mdec_in, @function

-mdec_in:

-

-	# a0 - data source address

-	# a1 - blocks to transfer (64 bytes per block)

-

-	lui		$a3, IOBASE

-	

-.Lmdec_in_wait:							# Wait until MDEC is ready for data

-	lw		$v0, MDEC1($a3)

-	lui		$v1, 0x1000

-	and		$v0, $v1

-	beqz	$v0, .Lmdec_in_wait

-	nop

-	

-	sw		$a0, D0_MADR($a3)			# Set source address

-	

-	andi	$v0, $a1, 0xFFFF			# Set transfer length

-	sll		$v0, 16

-	ori		$v0, 0x20					# 32 word block size

-	sw		$v0, D0_BCR($a3)

-	

-	lui		$v0, 0x0100					# Begin transfer

-	ori		$v0, 0x0201

-	sw		$v0, D0_CHCR($a3)

-

-	jr		$ra

-	nop

-	

-.global mdec_out						# Transmit data to DMA0 (MDEC in)

-.type mdec_out, @function

-mdec_out:

-

-	# a0 - data source address

-	# a1 - blocks to transfer (64 bytes per block)

-

-	lui		$a3, IOBASE

-	

-.Lmdec_out_ready:						# Wait until MDEC is ready for data

-	lw		$v0, MDEC1($a3)

-	lui		$v1, 0x1000

-	and		$v0, $v1

-	beqz	$v0, .Lmdec_out_ready

-	nop

-	

-	sw		$a0, D1_MADR($a3)			# Set source address

-	

-	andi	$v0, $a1, 0xFFFF			# Set transfer length

-	sll		$v0, 16

-	ori		$v0, 0x20					# 32 word block size

-	sw		$v0, D1_BCR($a3)

-	

-	lui		$v0, 0x0100					# Begin transfer

-	ori		$v0, 0x0200

-	sw		$v0, D1_CHCR($a3)

-

-.Lmdec_out_wait:

-	lw		$v0, D1_CHCR($a3)

-	lui		$v1, 0x0200

-	and		$v0, $v1

-	bnez	$v0, .Lmdec_out_wait

-	nop

-	

-	jr		$ra

-	nop

-	

-.global mdec_setscale					# Uploads the internal scaletable to MDEC

-.type mdec_setscale, @function

-mdec_setscale:

-

-	addiu	$sp, -4

-	sw		$ra, 0($sp)

-	

-	lui		$a0, 0x6000					# Set scaletable command

-	jal		mdec_cmd

-	nop

-	

-	la		$a0, _mdec_scaletable		# Upload scaletable

-	jal		mdec_in

-	li		$a1, 1						# 64 halfwords

-	

-	lw		$ra, 0($sp)

-	addiu	$sp, 4

-	jr		$ra

-	nop

-	

-	

-.global mdec_setquants					# Uploads the internal quant tables

-.type mdec_setquants, @function

-mdec_setquants:

-

-	addiu	$sp, -4

-	sw		$ra, 0($sp)

-	

-	lui		$a0, 0x4000					# Set quant tables command

-	ori		$a0, 0x0001					# luma + chroma data

-	jal		mdec_cmd

-	nop

-	

-	la		$a0, _mdec_qtables			# Upload quant tables

-	jal		mdec_in

-	li		$a1, 2						# 128 halfwords

-	

-	lw		$ra, 0($sp)

-	addiu	$sp, 4

-	jr		$ra

-	nop

-	

-	

-.section .data

-

-_mdec_qtables:

-	# taken from CCITT Rec. T.81

-	.hword	16, 11, 10, 16,  24,  40,  51,  61	# Luma table

-	.hword	12, 12, 14, 19,  26,  58,  60,  55

-	.hword	14, 13, 16, 24,  40,  57,  69,  56

-	.hword	14, 17, 22, 29,  51,  87,  80,  62

-	.hword	18, 22, 37, 56,  68, 109, 103,  77

-	.hword	24, 35, 55, 64,  81, 104, 113,  92

-	.hword	49, 64, 78, 87, 103, 121, 120, 101

-	.hword	72, 92, 95, 98, 112, 100, 103,  99

-	.hword	17, 18, 24, 47, 99, 99, 99, 99		# Chroma table

-	.hword	18, 21, 26, 66, 99, 99, 99, 99

-	.hword	24, 26, 56, 99, 99, 99, 99, 99

-	.hword	47, 66, 99, 99, 99, 99, 99, 99

-	.hword	99, 99, 99, 99, 99, 99, 99, 99

-	.hword	99, 99, 99, 99, 99, 99, 99, 99

-	.hword	99, 99, 99, 99, 99, 99, 99, 99

-	.hword	99, 99, 99, 99, 99, 99, 99, 99

-	

-_mdec_scaletable:

-	.hword	0x5A82,0x5A82,0x5A82,0x5A82,0x5A82,0x5A82,0x5A82,0x5A82

-	.hword	0x7D8A,0x6A6D,0x471C,0x18F8,0xE707,0xB8E3,0x9592,0x8275

-	.hword	0x7641,0x30FB,0xCF04,0x89BE,0x89BE,0xCF04,0x30FB,0x7641

-	.hword	0x6A6D,0xE707,0x8275,0xB8E3,0x471C,0x7D8A,0x18F8,0x9592

-	.hword	0x5A82,0xA57D,0xA57D,0x5A82,0x5A82,0xA57D,0xA57D,0x5A82

-	.hword	0x471C,0x8275,0x18F8,0x6A6D,0x9592,0xE707,0x7D8A,0xB8E3

-	.hword	0x30FB,0x89BE,0x7641,0xCF04,0xCF04,0x7641,0x89BE,0x30FB

-	.hword	0x18F8,0xB8E3,0x6A6D,0x8275,0x7D8A,0x9592,0x471C,0xE707

diff --git a/indev/psxmdec/table.h b/indev/psxmdec/table.h
deleted file mode 100644
index 3e50b18..0000000
--- a/indev/psxmdec/table.h
+++ /dev/null
@@ -1,102 +0,0 @@
-const static huff_t table0[]={

-	{6,3},{8,5},{10,6},{12,8},{76,9},{66,9},{20,11},{58,13},{48,13},{38,13},{32,13},{52,14},{50,14},{48,14},{46,14},{62,15},{60,15},{58,15},{56,15},{54,15},{52,15},{50,15},{48,15},{46,15},{44,15},{42,15},{40,15},{38,15},{36,15},{34,15},{32,15},{48,16},{46,16},{44,16},{42,16},{40,16},{38,16},{36,16},{34,16},{32,16},

-};

-const static huff_t table1[]={

-	{6,4},{12,7},{74,9},{24,11},{54,13},{44,14},{42,14},{62,16},{60,16},{58,16},{56,16},{54,16},{52,16},{50,16},{38,17},{36,17},{34,17},{32,17},

-};

-const static huff_t table2[]={

-	{10,5},{8,8},{22,11},{40,13},{40,14},

-};

-const static huff_t table3[]={

-	{14,6},{72,9},{56,13},{38,14},

-};

-const static huff_t table4[]={

-	{12,6},{30,11},{36,13},

-};

-const static huff_t table5[]={

-	{14,7},{18,11},{36,14},

-};

-const static huff_t table6[]={

-	{10,7},{60,13},{40,17},

-};

-const static huff_t table7[]={

-	{8,7},{42,13},

-};

-const static huff_t table8[]={

-	{14,8},{34,13},

-};

-const static huff_t table9[]={

-	{10,8},{34,14},

-};

-const static huff_t table10[]={

-	{78,9},{32,14},

-};

-const static huff_t table11[]={

-	{70,9},{52,17},

-};

-const static huff_t table12[]={

-	{68,9},{50,17},

-};

-const static huff_t table13[]={

-	{64,9},{48,17},

-};

-const static huff_t table14[]={

-	{28,11},{46,17},

-};

-const static huff_t table15[]={

-	{26,11},{44,17},

-};

-const static huff_t table16[]={

-	{16,11},{42,17},

-};

-const static huff_t table17[]={

-	{62,13},

-};

-const static huff_t table18[]={

-	{52,13},

-};

-const static huff_t table19[]={

-	{50,13},

-};

-const static huff_t table20[]={

-	{46,13},

-};

-const static huff_t table21[]={

-	{44,13},

-};

-const static huff_t table22[]={

-	{62,14},

-};

-const static huff_t table23[]={

-	{60,14},

-};

-const static huff_t table24[]={

-	{58,14},

-};

-const static huff_t table25[]={

-	{56,14},

-};

-const static huff_t table26[]={

-	{54,14},

-};

-const static huff_t table27[]={

-	{62,17},

-};

-const static huff_t table28[]={

-	{60,17},

-};

-const static huff_t table29[]={

-	{58,17},

-};

-const static huff_t table30[]={

-	{56,17},

-};

-const static huff_t table31[]={

-	{54,17},

-};

-const static huff_t *huff_table[]={

-	table0,table1,table2,table3,table4,table5,table6,table7,table8,table9,table10,table11,table12,table13,table14,table15,table16,table17,table18,table19,table20,table21,table22,table23,table24,table25,table26,table27,table28,table29,table30,table31,

-};

-const static int maxlevel[]={

-	40,18,5,4,3,3,3,2,2,2,2,2,2,2,2,2,2,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,

-};

diff --git a/indev/psxmdec/vlc.c b/indev/psxmdec/vlc.c
index bc64a12..064cfb3 100644
--- a/indev/psxmdec/vlc.c
+++ b/indev/psxmdec/vlc.c
@@ -1,3 +1,12 @@
+/* This file is a trimmed version of 

+ * https://cgit.grumpycoder.net/cgit/PSX-Bundle/tree/psxdev/vlc.c

+ * that only includes the VLC decompression routine. It cannot be

+ * included as part of the PSn00bSDK Run-time libraries due to license

+ * incompatibilities but is included here largely for prototyping and

+ * reference purposes as a better optimized implementation is preferred

+ * to support full-motion-video playback.

+ *

+ */

 #include <sys/types.h>

 

 typedef unsigned short	Uint16;

@@ -7,7 +16,7 @@ typedef struct {
 	unsigned int code,nbits;

 } huff_t;

 

-#include "table.h"

+//#include "table.h"

 

 #define	CODE1(a,b,c)	(((a)<<10)|((b)&0x3ff)|((c)<<16))

 /* run, level, bit */