Initialize PIAs, handle IRQs, blink LED

.gitignore

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+*.lst
+*.sym
+pinmame*/*
+*.pdf
+PIA.png

680xlogic.asm

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+;***********************************************
+;* 680X Style Logical Instruction Macros       *
+;* For use with TASMx Assembler                *
+;* Written by Jess M. Askey 2001 jess@askey.org*
+;***********************************************
+.module logic
+
+var1_		.equ	$00
+var2_		.equ	$00
+var3_		.equ	$00
+var4_		.equ	$00
+
+#define     FLAG_IF    	0
+#define     FLAG_ELSE 	1
+#define	FLAG_BEGIN 	2
+
+;*******************************************************************
+;* Locate: Pushes two Words                                        *
+;*                                                                 *
+;*            Word 1 - address of branch location                  *
+;*            Word 2 - Type of Operation                           *
+;*                     0 - Standard ENDIF                          *
+;*                     1 - ELSE or Logical ELSE                    *
+;*                     2 - Loop                                    *
+;*******************************************************************
+#define	logic_loc(type)	     \ .push  *, type
+
+;*******************************************************************
+;* Ifxx: These are the standard 'if' statements, they will always  *
+;*       be of type 0.                                             *
+;*******************************************************************
+#define	logic_ifxx(x)	     logic_loc(FLAG_IF) \ x  * 
+
+;*******************************************************************
+;* Begin: The start marker for logical loops, must terminate with  *
+;*        an 'xxend' statement.                                    *
+;******************************************************************* 
+#define     begin(x)		     logic_loc(FLAG_BEGIN)
+
+;*******************************************************************
+;* Logic End: This is the end macro for the 'begin' statement. It  *
+;*            pulls the pc location of the beginning of the loop   *
+;*            and verifies that the 'type' is correct.             *
+;*******************************************************************
+#define logic_loopend(x,y)	\ .pop var1_, var2_
+#defcont				\#if (var1_ & FLAG_BEGIN)
+#defcont					\#if ((var2_-*-2+127) <= 0)
+#defcont						\ y	*+5
+#defcont						\ jmp	var2_
+#defcont					\#else
+#defcont						\ x	var2_
+#defcont					\#endif
+#defcont				\#else
+#defcont					\ .error "Inappropriate End for BEGIN Loop."
+#defcont				\#endif
+
+;*******************************************************************
+;* Logic Find: Used for ENDIF statement. Will find the pc for the  *
+;*             previous IF (or ELSE) and update the branch or jump *
+;*             at that address to point to the current address.    *
+;*******************************************************************
+#define logic_end \var1_ .set *
+#defcont		\ .pop var3_, var4_
+#defcont		\#if (var3_ & FLAG_BEGIN)==0 
+#defcont			\#if (var3_ & FLAG_ELSE)==0	
+#defcont  				\var2_ .set var1_-var4_-2
+#defcont				\#if var2_+127 < 0
+#defcont					\ .error "Branch Range < -127"
+#defcont				\#else
+#defcont					\#if var2_-128 > 0
+#defcont						\ .error "Branch Range > 128"
+#defcont					\#else
+#defcont    					\ .org var4_+1
+#defcont						\ .byte var2_
+#defcont					\#endif
+#defcont				\#endif
+#defcont			\#else	
+#defcont    			\ .org  var4_-2	
+#defcont				\ .word var1_
+#defcont			\#endif
+#defcont			\ .org	var1_
+#defcont		\#else
+#defcont			\.error "Wrong Endtype for IF block"
+#defcont		\#endif
+
+;*******************************************************************
+;* Logic Else: Can act as a standard else or a complex else        *
+;*             (ie. with additional logic as defined below). The   *
+;*             ELSE block will resove how to terminate the current *
+;*             code and then set the owning IF statement's data    *
+;*             byte.                                               *
+;*******************************************************************
+#define	logic_else(x,y)	\var1_ .set $
+#defcont		\ .pop var3_, var4_
+#defcont		\#if (var3_ & FLAG_BEGIN)==0
+#defcont			\#if (var3_ & FLAG_ELSE)==0
+#defcont				\ .org var4_+1
+#defcont	      		\#if x==0
+#defcont					\var2_ .set var1_-var4_-2+2
+#defcont					\#if var2_+127 < 0
+#defcont						\ .org var1_
+#defcont						\.push $+3, 1
+#defcont						\ jmp $
+#defcont					\#else
+#defcont						\#if var2_-128>0
+#defcont							\ .org var1_
+#defcont							\.push $+3, 1
+#defcont							\ jmp $
+#defcont						\#else
+#defcont							\.push var1_, 0
+#defcont							\ .byte var2_
+#defcont							\ .org var1_
+#defcont							\ BRA $
+#defcont							\ .org var1_+2
+#defcont						\#endif
+#defcont					\#endif
+#defcont				\#else
+#defcont					\ .byte var1_-var4_-2+2
+#defcont					\ .org var1_
+#defcont					\.push $, 0
+#defcont					\ y $		
+#defcont				\#endif
+#defcont			\#else
+#defcont				\.error "Duplicate ELSE Statement"
+#defcont			\#endif
+#defcont		\#else
+#defcont			\ .error "Misplaced Else"
+#defcont		\#endif
+
+
+;*******************************************************************
+;* Defines how to use the various logic macros defined above.      *
+;*******************************************************************
+#define	ifeq	logic_ifxx(BNE)		
+#define	ifne	logic_ifxx(BEQ)
+#define	ifpl	logic_ifxx(BMI)
+#define	ifhi	logic_ifxx(BLO)
+#define	ifmi	logic_ifxx(BPL)
+#define	iflo	logic_ifxx(BHI)
+#define	ifcs	logic_ifxx(BCC)
+#define	ifcc	logic_ifxx(BCS)
+#define 	ifvc	logic_ifxx(BVS)
+#define 	ifvs	logic_ifxx(BVC)
+#define	ifge	logic_ifxx(BLO)
+#define	ifgt	logic_ifxx(BLS)
+
+#define	else  	logic_else(0,0)
+#define	else_eq	logic_else(1,BEQ)
+#define	else_ne	logic_else(1,BNE)
+#define	else_pl	logic_else(1,BPL)
+#define	else_mi	logic_else(1,BMI)
+#define	else_cc	logic_else(1,BCC)
+#define	else_cs	logic_else(1,BCS)
+
+#define 	endif		logic_end
+
+#define	eqend	logic_loopend(BNE,BEQ)		
+#define	neend	logic_loopend(BEQ,BNE)		
+#define	plend	logic_loopend(BMI,BPL)
+#define	miend	logic_loopend(BPL,BMI)
+#define	csend	logic_loopend(BCC,BCS)
+#define	ccend	logic_loopend(BCS,BCC)
+#define	vcend	logic_loopend(BVS,BVC)
+#define	vsend	logic_loopend(BVC,BVS)
+
+#define	loopend	logic_loopend(BRA,BRA)
+
+#define	lsb(x)	x&$FF
+
+#define	msb(x)	(x>>8)&$FF

68logic.asm

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+;***********************************************
+;* 680X Style Logical Instruction Macros       *
+;* For use with TASMx Assembler                *
+;* Written by Jess M. Askey 2001 jess@askey.org*
+;***********************************************
+.module logic
+.msfirst
+
+var1_		.equ	$00
+var2_		.equ	$00
+var3_		.equ	$00
+var4_		.equ	$00
+
+#define     FLAG_IF    	0
+#define     FLAG_ELSE 	1
+#define	FLAG_BEGIN 	2
+
+;*******************************************************************
+;* Locate: Pushes two Words                                        *
+;*                                                                 *
+;*            Word 1 - address of branch location                  *
+;*            Word 2 - Type of Operation                           *
+;*                     0 - Standard ENDIF                          *
+;*                     1 - ELSE or Logical ELSE                    *
+;*                     2 - Loop                                    *
+;*******************************************************************
+#define	logic_loc(type)	     \ .push  *, type
+
+;*******************************************************************
+;* Ifxx: These are the standard 'if' statements, they will always  *
+;*       be of type 0.                                             *
+;*******************************************************************
+#define	logic_ifxx(x)	     logic_loc(FLAG_IF) \ x  * 
+
+;*******************************************************************
+;* Begin: The start marker for logical loops, must terminate with  *
+;*        an 'xxend' statement.                                    *
+;******************************************************************* 
+#define     begin		      logic_loc(FLAG_BEGIN)
+
+;*******************************************************************
+;* Logic End: This is the end macro for the 'begin' statement. It  *
+;*            pulls the pc location of the beginning of the loop   *
+;*            and verifies that the 'type' is correct.             *
+;*******************************************************************
+#define logic_loopend(x,y)	\ .pop var1_, var2_
+#defcont				\#if (var1_ & FLAG_BEGIN)
+#defcont					\#if ((var2_-*-2+127) <= 0)
+#defcont						\ y	*+5
+#defcont						\ jmp	var2_
+#defcont					\#else
+#defcont						\ x	var2_
+#defcont					\#endif
+#defcont				\#else
+#defcont					\ .error "Inappropriate End for BEGIN Loop."
+#defcont				\#endif
+
+;*******************************************************************
+;* Logic Find: Used for ENDIF statement. Will find the pc for the  *
+;*             previous IF (or ELSE) and update the branch or jump *
+;*             at that address to point to the current address.    *
+;*******************************************************************
+#define logic_end \var1_ .set *
+#defcont		\ .pop var3_, var4_
+#defcont		\#if (var3_ & FLAG_BEGIN)==0 
+#defcont			\#if (var3_ & FLAG_ELSE)==0	
+#defcont  				\var2_ .set var1_-var4_-2
+#defcont				\#if var2_+127 < 0
+#defcont					\ .error "Branch Range < -127"
+#defcont				\#else
+#defcont					\#if var2_-128 > 0
+#defcont						\ .error "Branch Range > 128"
+#defcont					\#else
+#defcont    					\ .org var4_+1
+#defcont						\ .byte var2_
+#defcont					\#endif
+#defcont				\#endif
+#defcont			\#else	
+#defcont    			\ .org  var4_-2	
+#defcont				\ .word var1_
+#defcont			\#endif
+#defcont			\ .org	var1_
+#defcont		\#else
+#defcont			\.error "Wrong Endtype for IF block"
+#defcont		\#endif
+
+;*******************************************************************
+;* Logic Else: Can act as a standard else or a complex else        *
+;*             (ie. with additional logic as defined below). The   *
+;*             ELSE block will resove how to terminate the current *
+;*             code and then set the owning IF statement's data    *
+;*             byte.                                               *
+;*******************************************************************
+#define	logic_else(x,y)	\var1_ .set $
+#defcont		\ .pop var3_, var4_
+#defcont		\#if (var3_ & FLAG_BEGIN)==0
+#defcont			\#if (var3_ & FLAG_ELSE)==0
+#defcont				\ .org var4_+1
+#defcont	      		\#if x==0
+#defcont					\var2_ .set var1_-var4_-2+2
+#defcont					\#if var2_+127 < 0
+#defcont						\ .org var1_
+#defcont						\.push $+3, 1
+#defcont						\ jmp $
+#defcont					\#else
+#defcont						\#if var2_-128>0
+#defcont							\ .org var1_
+#defcont							\.push $+3, 1
+#defcont							\ jmp $
+#defcont						\#else
+#defcont							\.push var1_, 0
+#defcont							\ .byte var2_
+#defcont							\ .org var1_
+#defcont							\ BRA $
+#defcont							\ .org var1_+2
+#defcont						\#endif
+#defcont					\#endif
+#defcont				\#else
+#defcont					\ .byte var1_-var4_-2+2
+#defcont					\ .org var1_
+#defcont					\.push $, 0
+#defcont					\ y $		
+#defcont				\#endif
+#defcont			\#else
+#defcont				\.error "Duplicate ELSE Statement"
+#defcont			\#endif
+#defcont		\#else
+#defcont			\ .error "Misplaced Else"
+#defcont		\#endif
+
+
+;*******************************************************************
+;* Defines how to use the various logic macros defined above.      *
+;*******************************************************************
+#define	ifeq	logic_ifxx(BNE)		
+#define	ifne	logic_ifxx(BEQ)
+#define	ifpl	logic_ifxx(BMI)
+#define	ifhi	logic_ifxx(BLO)
+#define	ifmi	logic_ifxx(BPL)
+#define	iflo	logic_ifxx(BHI)
+#define	ifcs	logic_ifxx(BCC)
+#define	ifcc	logic_ifxx(BCS)
+#define 	ifvc	logic_ifxx(BVS)
+#define 	ifvs	logic_ifxx(BVC)
+#define	ifge	logic_ifxx(BLO)
+#define	ifgt	logic_ifxx(BLS)
+
+#define	else  	logic_else(0,0)
+#define	else_eq	logic_else(1,BEQ)
+#define	else_ne	logic_else(1,BNE)
+#define	else_pl	logic_else(1,BPL)
+#define	else_mi	logic_else(1,BMI)
+#define	else_cc	logic_else(1,BCC)
+#define	else_cs	logic_else(1,BCS)
+
+#define 	endif		logic_end
+
+#define	eqend	logic_loopend(BNE,BEQ)		
+#define	neend	logic_loopend(BEQ,BNE)		
+#define	plend	logic_loopend(BMI,BPL)
+#define	miend	logic_loopend(BPL,BMI)
+#define	csend	logic_loopend(BCC,BCS)
+#define	ccend	logic_loopend(BCS,BCC)
+#define	vcend	logic_loopend(BVS,BVC)
+#define	vsend	logic_loopend(BVC,BVS)
+#define     hiend logic_loopend(BLS,BHI)
+#define     lsend logic_loopend(BHI,BLS)
+
+#define	loopend	logic_loopend(BRA,BRA)
+
+#define	lsb(x)	x&$FF
+
+#define	msb(x)	(x>>8)&$FF

README.md

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+A custom OS (in the making) for Bally/Stern pinball machines with -17 based board sets
+
+See http://zacaj.com/search.php?iTags=Bally%20-35%20OS&eTags= , and contact me with any questions!

build.bat

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+tasmx -68 -s -b test.asm rom.764
+split.exe

decls.asm

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+u10A:			.equ $0088
+u10AControl		.equ $0089
+u10B:			.equ $008A
+u10BControl:		.equ $008B
+u11A:			.equ $0090
+u11AControl		.equ $0091
+u11B:			.equ $0092
+u11BControl:		.equ $0093
+
+switchRow:		.equ u10B
+switchStrobe:		.equ u10A
+lampAddress:		.equ u10A
+lampData:		.equ u10A
+scoreDispLatches:	.equ u10A
+displayData:		.equ u10A
+
+RAM:			.equ $0000
+cRAM:			.equ $0200
+
+counter:		.equ $0000

do.bat

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+cd pinmame32_23
+call test.bat
+cd ..