Miscellaneous

- Minor documentation updates
- Improve ESP driver hardware detection

Binary/ReadMe.txt

@@ -39,8 +39,8 @@ image for the Mark IV with the standard configuration. If a custom
 configuration called "custom" is created and built, a new file called 
 MK4_custom.rom will be added to this directory.
 
-Documentation of the pre-built ROM Images is contained in the 
-RomList.txt file in this directory.
+Documentation of the pre-built ROM Images is contained in
+"RomWBW User Guide.pdf" in the Doc directory.
 
 ROM Firmware Update Images (<plt>_<cfg>.upd)
 -------------------------------------

Doc/ChangeLog.txt

@@ -17,6 +17,7 @@ Version 3.3
 - WBW: Preliminary support for S100 Computers Z180
 - WBW: Preliminary support for Dan Werner's ESP32 MBC Module
 - WBW: Early support for Duodyne base system (CPU/UART/ROM/RAM/RTC/SPK)
+- M?C: Fixed XM to allow specifying HBIOS port for send operations
 
 Version 3.2.1
 -------------

ReadMe.md

@@ -3,7 +3,7 @@
 **RomWBW ReadMe** \
 Version 3.3 \
 Wayne Warthen  ([wwarthen@gmail.com](mailto:wwarthen@gmail.com)) \
-02 Aug 2023
+08 Aug 2023
 
 # Overview
 

ReadMe.txt

@@ -1,6 +1,6 @@
 RomWBW ReadMe
 Wayne Warthen (wwarthen@gmail.com)
-02 Aug 2023
+08 Aug 2023
 
 
 

Source/Doc/UserGuide.md

@@ -3967,26 +3967,15 @@ the RomWBW HBIOS configuration.
 |-------------------|---------------|
 | ROM Image File    | DUO_std.rom   |
 | Console Baud Rate | 38400         |
-| Interrupts        | None          |
+| Interrupts        | Mode 2        |
 
  - CPU speed is detected at startup if DS1302 RTC is active
    - Otherwise 8.000 MHz assumed
  - System timer is generated by CTC if available
  - Hardware auto-detected:
    - DS1302 RTC
-   - Zilog CTC
    - Zilog DMA Module
    - UART Serial Adapter
-   - SIO Serial Interface
-   - LPT Printer Interface
-   - Zilog Parallel Interface
-   - CVDU Display Adapter
-   - TMS9938/58 Display Adapter
-   - PS/2 Keyboard Interface
-   - AY-3-8910/YM2149 Sound Module
-   - Floppy Disk Controller w/ 3.5" HD Drives
-   - PPIDE Hard Disk Interface
- - Interrupts may be enabled in build options
 
 `\clearpage`{=latex}
 

Source/HBIOS/ROM Layout.txt

@@ -1,4 +1,4 @@
-RomWBW ROM Layout Notes
+RomWBW ROM Layout
 
 Bank		Module		Start	Size
 ------		------		------	------		
@@ -24,4 +24,16 @@ Bank		Module		Start	Size
 3		imgpad2		0x0000	0x8000
 		<end>		0x8000
 
-4-N		ROM Disk Data
+4 - N		ROM Disk Data
+
+
+RomWBW RAM Layout
+
+Bank ID         Usage                   Physical Address
+-------         ------                  ----------------
+0x80-0x87       RAM Disk Data           0x80000-0xBFFFF
+0x88-0x8B       CP/M 3 Buffers          0xC0000-0xDFFFF
+0x8C            CP/M 3 OS               0xE0000-0xE7FFF
+0x8D            RomWBW HBIOS            0xE8000-0xEFFFF
+0x8E            User TPA                0xF0000-0xF7FFF
+0x8F            Common                  0xF8000-0xFFFFF

Source/HBIOS/esp.asm

@@ -68,12 +68,27 @@ ESP_DETECT:
 	RET	NZ			; IF FAILS, ASSUME NOT PRESENT
 	LD	A,ESP_CMD_DISC		; DISCOVER COMMAND
 	CALL	ESP_OUT			; SEND IT
-	LD	DE,10			; DELAY 160US
-	CALL	VDELAY			; ... TO ENSURE OUTPUT RDY SET
-	IN	A,(ESP_STAT)		; GET STATUS
-	AND	ESP_0_RDY		; ISOLATE OUTPUT READY BIT
-	XOR	ESP_0_RDY		; INVERT SO 0=FOUND
-	RET				; DONE
+;
+	; LOOK FOR SIGNATURE STARTING WITH "ESP"
+	CALL	ESP_INWAIT		; ATTEMPT TO GET CHAR
+	;CALL	PRTHEXBYTE
+	CP	'E'
+	RET	NZ
+	CALL	ESP_INWAIT		; ATTEMPT TO GET CHAR
+	;CALL	PRTHEXBYTE
+	CP	'S'
+	RET	NZ
+	CALL	ESP_INWAIT		; ATTEMPT TO GET CHAR
+	;CALL	PRTHEXBYTE
+	CP	'P'
+	RET
+
+	;LD	DE,10			; DELAY 160US
+	;CALL	VDELAY			; ... TO ENSURE OUTPUT RDY SET
+	;IN	A,(ESP_STAT)		; GET STATUS
+	;AND	ESP_0_RDY		; ISOLATE OUTPUT READY BIT
+	;XOR	ESP_0_RDY		; INVERT SO 0=FOUND
+	;RET				; DONE
 ;
 ; CLEAR ESP INPUT QUEUE
 ;
@@ -81,6 +96,7 @@ ESP_CLR:
 	LD	B,0			; MAX CHARS TO READ
 ESP_CLR0:
 	CALL	ESP_WTNBSY		; WAIT TILL NOT BUSY
+	RET	NZ			; BAIL OUT IF TIMEOUT
 	IN	A,(ESP_STAT)		; GET STATUS
 	AND	ESP_0_RDY		; IS THERE MORE DATA?
 	RET	Z			; IF NOT, DONE

Source/ver.inc

@@ -2,7 +2,7 @@
 #DEFINE	RMN	3
 #DEFINE	RUP	0
 #DEFINE	RTP	0
-#DEFINE BIOSVER	"3.3.0-dev.41"
+#DEFINE BIOSVER	"3.3.0-dev.42"
 #define rmj	RMJ
 #define rmn	RMN
 #define rup	RUP

Source/ver.lib

@@ -3,5 +3,5 @@ rmn	equ	3
 rup	equ	0
 rtp	equ	0
 biosver	macro
-	db	"3.3.0-dev.41"
+	db	"3.3.0-dev.42"
 	endm