X-Git-Url: http://cloudbase.mooo.com/gitweb/z180-stamp-cpm3.git/blobdiff_plain/40df51aed30ddcd710c7356f8098516c27088392..f1710b4798b98078e7d1c8d07691ec1aea03855f:/cbios/boot.180

diff --git a/cbios/boot.180 b/cbios/boot.180
index c0ecc11..fcf00ae 100644
--- a/cbios/boot.180
+++ b/cbios/boot.180
@@ -6,13 +6,14 @@
 
 	public	f_cpu
 
-	extrn	?boot,?conin
+	extrn	boot,?conin
 	extrn	pr.inln,pr.crlf,pr.dec,pr.decl
 	extrn	ioini1l,msginit,mmuinit,intinit,cpu_frq
 	extrn	prt0ini,gs_rtc
 	extrn	@civec,@covec,@aivec,@aovec,@lovec
-	extrn	@cbnk,?bnksl
+	extrn	@cbnk,?move,?xmove
 
+	include	version.inc
 	include config.inc
 	include	z180reg.inc
 
@@ -45,11 +46,10 @@ hwinit:
 	ld	hl,hwini_tab
 	call	ioini1l
 	ld	a,0c3h
-	ld	hl,?boot
+	ld	hl,boot
 	ld	(0),a
 	ld	(1),hl
 hwini_skip:
-	call	mmuinit		; setup mmu registers
 	call	msginit
 	call	cpu_frq
 	ld	(f_cpu),hl
@@ -57,7 +57,8 @@ hwini_skip:
 	ret
 
 ?init:
-	ld	hl,1000000000000000b	; assign console to AVRCON:
+;	ld	hl,1000000000000000b	; assign console to AVRCON:
+	ld	hl,0010000000000000b	; assign console to ASCI1:
 	ld	(@civec),hl
 	ld	(@covec),hl
 	ld	hl,0000000000000000b	; assign printer to nothing:
@@ -77,9 +78,9 @@ hwini_skip:
 	ld	(@cbnk),a		; right now in bank 0
 
 	call	pr.inln			; print signon message
-	db	13,10,13,10,'CP/M Version 3.0, Z180-Stamp BIOS',13,10,0
-
-	call	pr.inln
+	db	13,10,13,10,'CP/M Version 3.0, Z180-Stamp BIOS v'
+	defvers
+	db	13,10
 	db	'Estimated CPU clock [Hz]: ',0
 
 	ld	hl,(f_cpu)
@@ -89,79 +90,58 @@ hwini_skip:
 	ret
 
 
-	cseg			; boot loading must be done from resident memory
+	cseg		; boot loading must be done from resident memory
 
 ; 	This version of the boot loader loads the CCP from a file
 ; 	called CCP.COM on the system drive (A:).
 
-
+	; First time, load the A:CCP.COM file into TPA
 ?ldccp:
-				; First time, load the A:CCP.COM file into TPA
 	ld	c,resetdsk
 	call	bdos
 	xor	a
-	ld	(ccp$fcb+15),a	; zero extent
+	ld	(ccp$fcb+15),a		; zero extent
 	ld	hl,0
-	ld	(fcb$nr),hl	; start at beginning of file
+	ld	(fcb$nr),hl		; start at beginning of file
 	ld	de,ccp$fcb
-	ld	c,open		; open file containing CCP
+	ld	c,open			; open file containing CCP
 	call	bdos
 	inc	a
-	jp	z,no$ccp	; error if no file...
+	jp	z,no$ccp		; error if no file...
 	ld	de,0100h
 	ld	c,setdma		; start of TPA
 	call	bdos
 	ld	de,128
-	ld	c,setmulti	; allow up to 16k bytes
+	ld	c,setmulti		; allow up to 16k bytes
 	call	bdos
 	ld	de,ccp$fcb
-	ld	c,read		; load the thing
-	call	bdos		; read records
-				; now,
-				;   copy CCP to bank 0 for reloading
-	ld	hl,0100h
-	ld	bc,ccpsize	; clone 3K, just in case
-	ld	a,(@cbnk)
-	push	af		; save current bank
-ld$1:
-	ld	a,tpa$bank
-	call	?bnksl		; select TPA
-	ld	a,(hl)
-	push	af		; get a byte
-	ld	a,2
-	call	?bnksl		; select extra bank
-	pop	af
-	ld	(hl),a		; save the byte
-	cpi			; bump pointer, drop count
-	jp	pe,ld$1
-	pop	af
-	call	?bnksl		; restore original bank
-	ret
+	ld	c,read			; load the thing
+	call	bdos			; read records
 
-no$ccp:				; here if we couldn't find the file
-	call	pr.inln		; report this...
-	db	13,10,'BIOS Err on A: No CCP.COM file',0
-
-	call	?conin		; get a response
-	jp	?ldccp		; and try again
+	; now, copy CCP to bank 0 for reloading
 
+	ld	bc,2*256 + tpa$bank	; c: src$bnk, b: dst$bnk
+	jr	mov_ccp
 
+	; just copy in the other direction
 ?rlccp:
+	ld	bc,tpa$bank*256 + 2	; c: src$bnk, b: dst$bnk
+mov_ccp:
+	call	?xmove
 	ld	hl,0100h
-	ld	bc,ccpsize	; clone 3K
-rl$1:
-	ld	a,2
-	call	?bnksl		; select extra bank
-	ld	a,(hl)		; get a byte
-	ex	af,af'
-	ld	a,tpa$bank
-	call	?bnksl		; select TPA
-	ex	af,af'
-	ld	(hl),a		; save the byte
-	cpi			; bump pointer, drop count
-	jp	pe,rl$1
+	ld	d,h
+	ld	e,l
+	ld	bc,ccpsize		; clone 3K, just in case
+	call	?move
 	ret
 
+no$ccp:					; here if we couldn't find the file
+	call	pr.inln			; report this...
+	db	13,10,'BIOS Err on A: No CCP.COM file',0
+
+	call	?conin			; get a response
+	jr	?ldccp			; and try again
+
 
 ccp$fcb:db	1,'CCP     ','COM',0,0,0,0
 	ds	16
@@ -175,7 +155,7 @@ hwini_tab:
 	db	dcntl,CWAITIO	;wait states
 	db	ccr,M_NCD	;No Clock Divide
 	db	cmr,PHI_X2	;X2 Clock Multiplier
-;TODO:	db	omr,	;Operation Mode Control Register
+	db	omcr,~M_IOC	;Operation Mode Control Register
 hwini0_e:
 	db	0		;stop mark