diff --git a/Source/HBIOS/PPI_Bus.txt b/Doc/Contrib/PPI_Bus.txt
similarity index 100%
rename from Source/HBIOS/PPI_Bus.txt
rename to Doc/Contrib/PPI_Bus.txt
diff --git a/Source/Apps/Test/DMAmon/std.asm b/Source/Apps/Test/DMAmon/std.asm
index 95e5283e..3c25f7bb 100644
--- a/Source/Apps/Test/DMAmon/std.asm
+++ b/Source/Apps/Test/DMAmon/std.asm
@@ -384,6 +384,17 @@ WDOG_NONE	.EQU	0		; NONE
 WDOG_EZZ80	.EQU	1		; EASY Z80 WATCHDOG
 WDOG_SKZ	.EQU	2		; SK Z80 CPU W/ 512K
 ;
+; SYSTEM SPEED CAPABILITIES
+;
+SPD_FIXED	.EQU	0		; PLATFORM SPEED FIXED AND CANNOT CHANGE SPEEDS
+SPD_HILO	.EQU	1		; PLATFORM CAN CHANGE BETWEEN TWO SPEEDS
+;
+; SYSTEM SPEED CHARACTERISTICS
+;
+SPD_UNSUP	.EQU	0		; PLATFORM CAN CHANGE SPEEDS BUT IS UNSUPPORTED
+SPD_HIGH	.EQU	1		; PLATFORM CAN CHANGE SPEED, STARTS HIGH
+SPD_LOW		.EQU	2		; PLATFORM CAN CHANGE SPEED, STARTS LOW
+;
 #INCLUDE "build.inc"		; INCLUDE USER CONFIG, ADD VARIANT, TIMESTAMP, & ROMSIZE
 ;
 #IF (BIOS == BIOS_WBW)
@@ -488,33 +499,40 @@ SYSTIM	.SET	TM_Z280
 ;
 ; MEMORY BANK CONFIGURATION
 ;
+WBW_ROM_R	.EQU	128	; 128K			; RESERVED ROM REQUIRED FOR ROMWBW
+WBW_RAM_R	.EQU	256	; 256K			; RESERVED RAM REQUIRED FOR ROMWBW
+TOT_ROM_RB	.EQU	(PLT_ROM_R + WBW_ROM_R)/32	; TOTAL ROM BANKS RESERVED
+TOT_RAM_RB	.EQU	(PLT_RAM_R + WBW_RAM_R)/32	; TOTAL RAM BANKS RESERVED
+;
 #IF (BIOS == BIOS_UNA)
-BID_ROM0	.EQU	$0000 + (ROM_RESERVE / 32)
-BID_RAM0	.EQU	$8000 + (RAM_RESERVE / 32)
+BID_ROM0	.EQU	$0000 + (PLT_ROM_R / 32)
+BID_RAM0	.EQU	$8000 + (PLT_RAM_R / 32)
 #ENDIF
 ;
 #IF (BIOS == BIOS_WBW)
-BID_ROM0	.EQU	$00 + (ROM_RESERVE / 32)
-BID_RAM0	.EQU	$80 + (RAM_RESERVE / 32)
+BID_ROM0	.EQU	$00 + (PLT_ROM_R / 32)
+BID_RAM0	.EQU	$80 + (PLT_RAM_R / 32)
 #ENDIF
 
 BID_ROMN	.EQU	(BID_ROM0 + ((ROMSIZE / 32) - 1))
 BID_RAMN	.EQU	(BID_RAM0 + ((RAMSIZE / 32) - 1))
-
-BID_BOOT	.EQU	BID_ROM0	; BOOT BANK
-BID_IMG0	.EQU	BID_ROM0 + 1	; ROM LOADER AND FIRST IMAGES BANK
-BID_IMG1	.EQU	BID_ROM0 + 2	; SECOND IMAGES BANK
-;BID_FSFAT	.EQU	BID_ROM0 + 3	; FAT FILESYSTEM DRIVER BANK
-BID_IMG2	.EQU	BID_ROM0 + 3	; NETWORK BOOT
-BID_ROMD0	.EQU	BID_ROM0 + 4	; FIRST ROM DRIVE BANK
-BID_ROMDN	.EQU	BID_ROMN	; LAST ROM DRIVE BANK
-
-BID_RAMD0	.EQU	BID_RAM0	; FIRST RAM DRIVE BANK
-BID_RAMDN	.EQU	BID_RAMN - 4	; LAST RAM DRIVE BANK
-BID_AUX		.EQU	BID_RAMN - 3	; AUX BANK (BPBIOS, ETC.)
-BID_BIOS	.EQU	BID_RAMN - 2	; BIOS BANK
-BID_USR		.EQU	BID_RAMN - 1	; USER BANK (CP/M TPA, ETC.)
-BID_COM		.EQU	BID_RAMN	; COMMON BANK, UPPER 32K
+;
+BID_RAMD0	.EQU	BID_RAM0	; FIRST RAM DRIVE BANK			 ^  RAM
+BID_RAMDN	.EQU	BID_RAMN - TOT_RAM_RB	; LAST RAM DRIVE BANK		 |  DRIVE
+;					; OS BUFFERS CP/M3?			-+ THESE
+;					; OS BUFFERS CP/M3?			 | MAKE
+;					; OS BUFFERS CP/M3?			 | UP
+;					; OS BUFFERS CP/M3?			 | THE
+BID_AUX		.EQU	BID_RAMN - 3	; AUX BANK (BPBIOS, ETC.)		 | 256KB
+BID_BIOS	.EQU	BID_RAMN - 2	; BIOS BANK				 | RESERVED
+BID_USR		.EQU	BID_RAMN - 1	; USER BANK (CP/M TPA, ETC.)		 | RAM
+BID_COM		.EQU	BID_RAMN - 0	; COMMON BANK, UPPER 32K		-+ BANKS
+BID_BOOT	.EQU	BID_ROM0 + 0	; BOOT BANK				-+ THESE MAKE
+BID_IMG0	.EQU	BID_ROM0 + 1	; ROM LOADER AND FIRST IMAGES BANK	 | UP THE 128KB
+BID_IMG1	.EQU	BID_ROM0 + 2	; SECOND IMAGES BANK		 	 | RESERVED
+BID_IMG2	.EQU	BID_ROM0 + 3	; NETWORK BOOT				-+ ROM BANKS
+BID_ROMD0	.EQU	BID_ROM0 + 4	; FIRST ROM DRIVE BANK			 |  ROM
+BID_ROMDN	.EQU	BID_ROMN	; LAST ROM DRIVE BANK			 V  DRIVE
 ;
 ; MEMORY LAYOUT
 ;
diff --git a/Source/Apps/Test/DMAmon/ver.inc b/Source/Apps/Test/DMAmon/ver.inc
index 8338aafc..202747a4 100644
--- a/Source/Apps/Test/DMAmon/ver.inc
+++ b/Source/Apps/Test/DMAmon/ver.inc
@@ -1,5 +1,5 @@
 #DEFINE	RMJ	3
 #DEFINE	RMN	1
 #DEFINE	RUP	1
-#DEFINE	RTP	03
-#DEFINE BIOSVER	"3.1.1-pre.111"
+#DEFINE	RTP	0
+#DEFINE BIOSVER	"3.1.1-pre.128"
diff --git a/Source/HBIOS/dma.asm b/Source/HBIOS/dma.asm
index a7eaf7d6..52e0bed8 100644
--- a/Source/HBIOS/dma.asm
+++ b/Source/HBIOS/dma.asm
@@ -165,6 +165,7 @@ DMACode_Len 	.equ	$-DMACode
 DMALDIR:
 	ld	(DMASource),hl		; populate the dma
 	ld	(DMADest),de		; register template
+	dec	bc
 	ld	(DMALength),bc
 ;
 	ld	hl,DMACopy		; program the
@@ -211,6 +212,7 @@ DMACopy_Len 	.equ	$-DMACopy
 DMAOTIR:
 	ld	(DMAOutSource),hl	; populate the dma
 	ld	(DMAOutDest),a		; register template
+	dec	bc
 	ld	(DMAOutLength),bc	
 ;
 	ld	hl,DMAOutCode		; program the
@@ -262,6 +264,7 @@ DMAOut_Len 	.equ	$-DMAOutCode
 DMAINIR:
 	ld	(DMAInDest),hl		; populate the dma
 	ld	(DMAInSource),a		; register template
+	dec	bc
 	ld	(DMAInLength),bc	
 ;
 	ld	hl,DMAInCode		; program the
diff --git a/Source/HBIOS/md.asm b/Source/HBIOS/md.asm
index 10e08d07..6a92d206 100644
--- a/Source/HBIOS/md.asm
+++ b/Source/HBIOS/md.asm
@@ -382,7 +382,7 @@ MD_SECM:
 	OR	A
 	JR	NZ,MD_NODMA
 #ENDIF
-	LD	BC,512-1		; COPY ONE 512B SECTOR FROM THE
+	LD	BC,512			; COPY ONE 512B SECTOR FROM THE
 	JP	DMALDIR			; 4K SECTOR TO THE DISK BUFFER
 #ENDIF
 MD_NODMA:
@@ -516,7 +516,7 @@ MD_SECM1:				; DESIRED SECTOR IS IN BUFFER
 	OR	A
 	JR	NZ,MD_NODMA1
 #ENDIF
-	LD	BC,512-1		; COPY ONE 512B SECTOR FROM THE
+	LD	BC,512			; COPY ONE 512B SECTOR FROM THE
 	CALL	DMALDIR			; THE DISK BUFFER TO 4K SECTOR
 	RET	NZ			; EXIT IF DMA COPY ERROR
 	JR	MD_NODMAERR
diff --git a/Source/HBIOS/rf.asm b/Source/HBIOS/rf.asm
index 47d78238..caf54546 100644
--- a/Source/HBIOS/rf.asm
+++ b/Source/HBIOS/rf.asm
@@ -273,7 +273,7 @@ RF_RDSEC:
 	LD	HL,(RF_DSKBUF)		; HL := DISK BUFFER ADDRESS
 	LD	A,(RF_IO)		; GET IO PORT BASE
 #IF (DMAENABLE & (DMAMODE=DMAMODE_ECB))
-	LD	BC,512-1		; READ 512 BYTES
+	LD	BC,512			; READ 512 BYTES
 	CALL	DMAINIR			; USING DMA
 #ELSE
 	OR	RF_DAT			; OFFSET TO DAT PORT
@@ -293,7 +293,7 @@ RF_WRSEC:
 	LD	A,(RF_IO)		; GET IO PORT BASE
 	OR	RF_DAT			; OFFSET TO DAT PORT
 #IF (DMAENABLE & (DMAMODE=DMAMODE_ECB))
-	LD	BC,512-1		; WRITE 512 BYTES
+	LD	BC,512			; WRITE 512 BYTES
 	CALL	DMAOTIR			; USING DMA
 #ELSE
 	LD	C,A			; PUT IN C FOR PORT IO