Ves.h - Revision history

E5frog at 11:59, 17 November 2012

2012-11-17T11:59:13Z

E5frog at 11:57, 17 November 2012

2012-11-17T11:57:01Z

E5frog: Created page with "This is an attempt to assemble code that is used often in the homebrew programs, such as the necessary cartridge start byte, simplification to set the ISAR and others:

 ..."

2012-11-17T11:53:14Z

Created page with "This is an attempt to assemble code that is used often in the homebrew programs, such as the necessary cartridge start byte, simplification to set the ISAR and others: <pre> ..."

New page

This is an attempt to assemble code that is used often in the homebrew programs, such as the necessary cartridge start byte, simplification to set the ISAR and others:

<pre>
;====================================================================
; VES.H
; Fairchild Channel F Header File
; 20041030
; by Kevin Lipe
;====================================================================

VESH_VERSION = 101

; THIS IS A PRELIMINARY RELEASE OF *THE* "STANDARD" VES.H
;
; This file defines memory mapping and BIOS calls for the
; Fairchild Channel F, and also standardized Macros.

;====================================================================
; E Q U A T E S
;====================================================================

;------------------------
; BIOS Calls
;------------------------
clrscrn = $00d0 ;uses r31
delay = $008f
pushk = $0107 ;used to allow more subroutine stack space
popk = $011e
drawchar = $0679

;------------------------
; Colors
;------------------------
red = $40
blue = $80
green = $00
bkg = $C0
clear = $FF

;------------------------
; Schach RAM
;------------------------
ram = $2800 ;location of RAM available in Schach cartridge

;===================================================================
; M A C R O S
;===================================================================

;-------------------------
; CARTRIDGE_START
; Original Author: Sean Riddle
; Inserts the $55 that signals a valid Channel F cartridge and an
; unused byte, which places the VES at the cartridge entry point, $802.

MAC CARTRIDGE_START
.byte $55, $00 ; valid cart indicator, unused byte
ENDM

;-------------------------
; CARTRIDGE_INIT
; Original Author: Sean Riddle
; Initalizes the hardware and clears the complement flag.

MAC CARTRIDGE_INIT
; initalize the hardware
lis 0
outs 1
outs 4
outs 5
outs 0

; clear the complement flag (r32)
lisu 4
lisl 0
lr S, A
ENDM

;-------------------------
; PROMPTS_NO_T
; Original Author: Sean Riddle
; This code functions the same as the "prompts" section of the BIOS,
; but this code doesn't have a "T?" prompt, so it's useful in games that
; don't have time limits or settings.

MAC PROMPTS_NOT
prompts SUBROUTINE
LR K,P ;
PI pushk ;
.prompts2: LI $85 ; red 5 (S)
LR $0,A ;
PI prompt ;
LR A,$4 ;
CI $08 ; is it button 4, Start?
BF $4,.notbut4 ; no, check others
.notbut2:
PI popk ; yes, return
PK ;

.notbut4: CI $02 ; is it button 2, Mode?
BF $4,.notbut2 ;
LI $8e ; red M
LR $0,A ;
PI prompt ;
LISU 3 ;
LISL 6 ;
LR A,(IS) ;
as 4 ;add the mode to the game #
LR (IS),A ;
BF $0,.prompts2 ;
ENDM

;-------------------------
; SETISAR
; Original Author: Blackbird
; Sets the ISAR to a register number, using lisu and lisl

MAC SETISAR
lisu [[{1}] >> 3]
lisl [[{1}] & %111]
ENDM
</pre>

← Older revision		Revision as of 11:59, 17 November 2012
Line 1:		Line 1:
−	This is an attempt to assemble code that is used often in the homebrew programs, such as the necessary cartridge start byte, simplification to set the ISAR and others:	+	This is an attempt to assemble code that is used <br>
		+	often in the homebrew programs, such as the necessary <br>
		+	cartridge start byte, simplification to set the ISAR <br>
		+	and others. <br>
		+	<br>
		+	Use it in your project and add '''include "ves.h"''' <br>
		+	to be able to call these macros easily in your program <br>
		+	code. <br>

	<pre>		<pre>

@@ Line 2: / Line 2: @@
 <pre>
 ; VES.H
-; Fairchild Channel F Header File
+; Fairchild Channel F Header
-; 20041030
+; Version 1.01, 2/NOVEMBER/2004
-VESH_VERSION = 101
+VERSION_CHANNELF	= 101
 ; THIS IS A PRELIMINARY RELEASE OF *THE* "STANDARD" VES.H
+;
-; This file defines memory mapping and BIOS calls for the
+; This file defines hardware registers and memory mapping for the
-; Fairchild Channel F, and also standardized Macros.
+; Fairchild Channel-F. It is distributed as a companion machine-specific support package
-;====================================================================
+INCLUDE_DEPRECATED                 ; remove to DISABLE deprecated equates
 ;------------------------
 ; BIOS Calls
 ;------------------------
-;------------------------
+BIOS_CLEAR_SCREEN   = $00d0        ; uses r31
 ; Colors
 ;------------------------
-red             =       $40
+COLOR_RED           = $40
-blue            =       $80
+COLOR_BLUE          = $80
-green           =       $00
+COLOR_GREEN         = $00
-bkg             =       $C0
+COLOR_BACKGROUND    = $C0
-clear		    =	    $FF
 ;------------------------
@@ Line 119: / Line 166: @@
 	lisl	[[{1}] & %111]
 	ENDM
 </pre>