added a stupid amount of work to zpy, and started the document work in latex

rather than groff

1 files changed, 45 insertions, 0 deletions

diff --git a/electronics/asm/\ b/electronics/asm/\
new file mode 100644
index 0000000..c86ca8e
--- /dev/null
+++ b/electronics/asm/\
@@ -0,0 +1,45 @@
+start: 
+init: 
+	clrf    PORTA           ; make sure port A output latches are low 
+	clrf    PORTB           ; make sure port B output latches are low 
+	bsf     STATUS,RP0      ; select memory bank 1 
+	movlw 	b'00000000'     ; set port A data direction to inputs 
+	movwf 	TRISA         
+	movlw 	b'00001111'     ; set port B data direction to outputs 
+	movwf 	TRISB          
+	bcf     STATUS,RP0      ; select memory bank 0 
+
+	;stackptr EQU B10
+	tmpdata EQU B9
+
+	goto    main 
+
+main: 
+	;movlw	0
+	;movwf	stackptr
+	
+	movlw	b'00000001'
+	movwf	PORTA
+
+	movlw	b'10100000'	; move 1111 to the output
+	movwf	PORTB
+
+	movlw	b'00000000'
+	movwf	PORTA
+
+	movlw 	b'11111111'    
+	movwf 	TRISB          
+	
+	movf	PORTB, W
+	movwf	tmpdata	
+
+	movlw 	b'00001111'     
+	movwf 	TRISB          
+
+	swapf	tmpdata, W 
+	movwf	PORTB
+
+noend:
+	goto 	noend
+
+	END		        ; ends the program