Added examples in sdcc c

added a couple C examples
2025-05-02 17:51:54 -06:00 · 2025-03-24 22:25:53 -06:00
38 changed files with 3607 additions and 10 deletions
--- a/.gitignore
+++ b/.gitignore
--- a/c/Makefile
+++ b/c/Makefile
@ -0,0 +1,32 @@
+# My pic workflow makefile by Fernando R Jacobo
+# Dependencies
+# SDCC Small Device C Compiler
+# pk2cmd for pickit pic programmers
+
+# C compiler variables
+SRC=*.c
+CC=sdcc
+FAMILY=pic16
+PROC=18f4550
+
+# ASM and program variables
+PPROC=PIC18F4550
+ASMPROC=18F4550
+
+all: $(SRC:.c=.hex)
+
+comp: $(SRC)
+	$(CC) --use-non-free -m$(FAMILY) -p$(PROC) $^
+
+clean:
+	rm -f $(SRC:.c=.asm) $(SRC:.c=.cod) $(SRC:.c=.hex) $(SRC:.c=.lst) $(SRC:.c=.o)
+
+program:
+	pk2cmd -M -P${PPROC} -Fmain.hex
+
+asm: *.asm
+	gpasm -p ${ASMPROC} -o main.hex $^
+
+asmp: asm program
+
+.PHONY: all clean
--- a/c/README.md
+++ b/c/README.md
@ -0,0 +1 @@
+# PIC18F4550 examples with SDCC C
--- a/c/blinkc/Makefile
+++ b/c/blinkc/Makefile
@ -0,0 +1,32 @@
+# My pic workflow makefile by Fernando R Jacobo
+# Dependencies
+# SDCC Small Device C Compiler
+# pk2cmd for pickit pic programmers
+
+# C compiler variables
+SRC=*.c
+CC=sdcc
+FAMILY=pic16
+PROC=18f4550
+
+# ASM and program variables
+PPROC=PIC18F4550
+ASMPROC=18F4550
+
+all: $(SRC:.c=.hex)
+
+comp: $(SRC)
+	$(CC) --use-non-free -m$(FAMILY) -p$(PROC) $^
+
+clean:
+	rm -f $(SRC:.c=.asm) $(SRC:.c=.cod) $(SRC:.c=.hex) $(SRC:.c=.lst) $(SRC:.c=.o)
+
+program:
+	pk2cmd -M -P${PPROC} -Fmain.hex
+
+asm: *.asm
+	gpasm -p ${ASMPROC} -o main.hex $^
+
+asmp: asm program
+
+.PHONY: all clean
--- a/c/blinkc/main.asm
+++ b/c/blinkc/main.asm
@ -0,0 +1,342 @@
+;--------------------------------------------------------
+; File Created by SDCC : free open source ISO C Compiler
+; Version 4.5.0 #15242 (Linux)
+;--------------------------------------------------------
+; PIC16 port for the Microchip 16-bit core micros
+;--------------------------------------------------------
+	list	p=18f4550
+	radix	dec
+	CONFIG	XINST=OFF
+	CONFIG	FOSC=HS
+	CONFIG	WDT=OFF
+	CONFIG	LVP=OFF
+
+
+;--------------------------------------------------------
+; public variables in this module
+;--------------------------------------------------------
+	global	_sram_end
+	global	_main
+
+;--------------------------------------------------------
+; extern variables in this module
+;--------------------------------------------------------
+	extern	_SPPCFGbits
+	extern	_SPPEPSbits
+	extern	_SPPCONbits
+	extern	_UFRMLbits
+	extern	_UFRMHbits
+	extern	_UIRbits
+	extern	_UIEbits
+	extern	_UEIRbits
+	extern	_UEIEbits
+	extern	_USTATbits
+	extern	_UCONbits
+	extern	_UADDRbits
+	extern	_UCFGbits
+	extern	_UEP0bits
+	extern	_UEP1bits
+	extern	_UEP2bits
+	extern	_UEP3bits
+	extern	_UEP4bits
+	extern	_UEP5bits
+	extern	_UEP6bits
+	extern	_UEP7bits
+	extern	_UEP8bits
+	extern	_UEP9bits
+	extern	_UEP10bits
+	extern	_UEP11bits
+	extern	_UEP12bits
+	extern	_UEP13bits
+	extern	_UEP14bits
+	extern	_UEP15bits
+	extern	_PORTAbits
+	extern	_PORTBbits
+	extern	_PORTCbits
+	extern	_PORTDbits
+	extern	_PORTEbits
+	extern	_LATAbits
+	extern	_LATBbits
+	extern	_LATCbits
+	extern	_LATDbits
+	extern	_LATEbits
+	extern	_DDRAbits
+	extern	_TRISAbits
+	extern	_DDRBbits
+	extern	_TRISBbits
+	extern	_DDRCbits
+	extern	_TRISCbits
+	extern	_DDRDbits
+	extern	_TRISDbits
+	extern	_DDREbits
+	extern	_TRISEbits
+	extern	_OSCTUNEbits
+	extern	_PIE1bits
+	extern	_PIR1bits
+	extern	_IPR1bits
+	extern	_PIE2bits
+	extern	_PIR2bits
+	extern	_IPR2bits
+	extern	_EECON1bits
+	extern	_RCSTAbits
+	extern	_TXSTAbits
+	extern	_T3CONbits
+	extern	_CMCONbits
+	extern	_CVRCONbits
+	extern	_CCP1ASbits
+	extern	_ECCP1ASbits
+	extern	_CCP1DELbits
+	extern	_ECCP1DELbits
+	extern	_BAUDCONbits
+	extern	_BAUDCTLbits
+	extern	_CCP2CONbits
+	extern	_CCP1CONbits
+	extern	_ECCP1CONbits
+	extern	_ADCON2bits
+	extern	_ADCON1bits
+	extern	_ADCON0bits
+	extern	_SSPCON2bits
+	extern	_SSPCON1bits
+	extern	_SSPSTATbits
+	extern	_T2CONbits
+	extern	_T1CONbits
+	extern	_RCONbits
+	extern	_WDTCONbits
+	extern	_HLVDCONbits
+	extern	_LVDCONbits
+	extern	_OSCCONbits
+	extern	_T0CONbits
+	extern	_STATUSbits
+	extern	_INTCON3bits
+	extern	_INTCON2bits
+	extern	_INTCONbits
+	extern	_STKPTRbits
+	extern	_SPPDATA
+	extern	_SPPCFG
+	extern	_SPPEPS
+	extern	_SPPCON
+	extern	_UFRM
+	extern	_UFRML
+	extern	_UFRMH
+	extern	_UIR
+	extern	_UIE
+	extern	_UEIR
+	extern	_UEIE
+	extern	_USTAT
+	extern	_UCON
+	extern	_UADDR
+	extern	_UCFG
+	extern	_UEP0
+	extern	_UEP1
+	extern	_UEP2
+	extern	_UEP3
+	extern	_UEP4
+	extern	_UEP5
+	extern	_UEP6
+	extern	_UEP7
+	extern	_UEP8
+	extern	_UEP9
+	extern	_UEP10
+	extern	_UEP11
+	extern	_UEP12
+	extern	_UEP13
+	extern	_UEP14
+	extern	_UEP15
+	extern	_PORTA
+	extern	_PORTB
+	extern	_PORTC
+	extern	_PORTD
+	extern	_PORTE
+	extern	_LATA
+	extern	_LATB
+	extern	_LATC
+	extern	_LATD
+	extern	_LATE
+	extern	_DDRA
+	extern	_TRISA
+	extern	_DDRB
+	extern	_TRISB
+	extern	_DDRC
+	extern	_TRISC
+	extern	_DDRD
+	extern	_TRISD
+	extern	_DDRE
+	extern	_TRISE
+	extern	_OSCTUNE
+	extern	_PIE1
+	extern	_PIR1
+	extern	_IPR1
+	extern	_PIE2
+	extern	_PIR2
+	extern	_IPR2
+	extern	_EECON1
+	extern	_EECON2
+	extern	_EEDATA
+	extern	_EEADR
+	extern	_RCSTA
+	extern	_TXSTA
+	extern	_TXREG
+	extern	_RCREG
+	extern	_SPBRG
+	extern	_SPBRGH
+	extern	_T3CON
+	extern	_TMR3
+	extern	_TMR3L
+	extern	_TMR3H
+	extern	_CMCON
+	extern	_CVRCON
+	extern	_CCP1AS
+	extern	_ECCP1AS
+	extern	_CCP1DEL
+	extern	_ECCP1DEL
+	extern	_BAUDCON
+	extern	_BAUDCTL
+	extern	_CCP2CON
+	extern	_CCPR2
+	extern	_CCPR2L
+	extern	_CCPR2H
+	extern	_CCP1CON
+	extern	_ECCP1CON
+	extern	_CCPR1
+	extern	_CCPR1L
+	extern	_CCPR1H
+	extern	_ADCON2
+	extern	_ADCON1
+	extern	_ADCON0
+	extern	_ADRES
+	extern	_ADRESL
+	extern	_ADRESH
+	extern	_SSPCON2
+	extern	_SSPCON1
+	extern	_SSPSTAT
+	extern	_SSPADD
+	extern	_SSPBUF
+	extern	_T2CON
+	extern	_PR2
+	extern	_TMR2
+	extern	_T1CON
+	extern	_TMR1
+	extern	_TMR1L
+	extern	_TMR1H
+	extern	_RCON
+	extern	_WDTCON
+	extern	_HLVDCON
+	extern	_LVDCON
+	extern	_OSCCON
+	extern	_T0CON
+	extern	_TMR0
+	extern	_TMR0L
+	extern	_TMR0H
+	extern	_STATUS
+	extern	_FSR2L
+	extern	_FSR2H
+	extern	_PLUSW2
+	extern	_PREINC2
+	extern	_POSTDEC2
+	extern	_POSTINC2
+	extern	_INDF2
+	extern	_BSR
+	extern	_FSR1L
+	extern	_FSR1H
+	extern	_PLUSW1
+	extern	_PREINC1
+	extern	_POSTDEC1
+	extern	_POSTINC1
+	extern	_INDF1
+	extern	_WREG
+	extern	_FSR0L
+	extern	_FSR0H
+	extern	_PLUSW0
+	extern	_PREINC0
+	extern	_POSTDEC0
+	extern	_POSTINC0
+	extern	_INDF0
+	extern	_INTCON3
+	extern	_INTCON2
+	extern	_INTCON
+	extern	_PROD
+	extern	_PRODL
+	extern	_PRODH
+	extern	_TABLAT
+	extern	_TBLPTR
+	extern	_TBLPTRL
+	extern	_TBLPTRH
+	extern	_TBLPTRU
+	extern	_PC
+	extern	_PCL
+	extern	_PCLATH
+	extern	_PCLATU
+	extern	_STKPTR
+	extern	_TOS
+	extern	_TOSL
+	extern	_TOSH
+	extern	_TOSU
+	extern	_delay1ktcy
+
+;--------------------------------------------------------
+;	Equates to used internal registers
+;--------------------------------------------------------
+STATUS	equ	0xfd8
+WREG	equ	0xfe8
+PRODH	equ	0xff4
+
+
+; Internal registers
+.registers	udata_ovr	0x0000
+r0x00	res	1
+
+
+ustat_main_00	udata	0X07FF
+_sram_end      	res	0
+
+;--------------------------------------------------------
+; interrupt vector
+;--------------------------------------------------------
+
+;--------------------------------------------------------
+; global & static initialisations
+;--------------------------------------------------------
+; I code from now on!
+; ; Starting pCode block
+S_main__main	code
+_main:
+;	.line	16; main.c	LED_TRIS = 0; // Pin as output
+	BCF	_TRISDbits, 1
+;	.line	17; main.c	LED_LAT = 0;  // LED off
+	BCF	_LATDbits, 1
+_00106_DS_:
+;	.line	20; main.c	LED_LAT = !LED_LAT; // Toggle LED
+	CLRF	r0x00
+	BTFSC	_LATDbits, 1
+	INCF	r0x00, F
+	MOVF	r0x00, W
+	BSF	STATUS, 0
+	TSTFSZ	WREG
+	BCF	STATUS, 0
+	CLRF	r0x00
+	RLCF	r0x00, F
+	MOVF	r0x00, W
+	ANDLW	0x01
+	RLNCF	WREG, W
+	MOVWF	PRODH
+	MOVF	_LATDbits, W
+	ANDLW	0xfd
+	IORWF	PRODH, W
+	MOVWF	_LATDbits
+;	.line	21; main.c	delay1ktcy(500);    // 500ms @ 1MHz
+	MOVLW	0xf4
+	CALL	_delay1ktcy
+	BRA	_00106_DS_
+;	.line	23; main.c	}
+	RETURN	
+
+
+
+; Statistics:
+; code size:	   48 (0x0030) bytes ( 0.04%)
+;           	   24 (0x0018) words
+; udata size:	    0 (0x0000) bytes ( 0.00%)
+; access size:	    1 (0x0001) bytes
+
+
+	end
--- a/c/blinkc/main.c
+++ b/c/blinkc/main.c
@ -0,0 +1,23 @@
+#include <delay.h>
+#include <pic18fregs.h>
+
+// FUSES START
+#pragma config XINST = OFF
+#pragma config FOSC = HS
+#pragma config WDT = OFF
+#pragma config LVP = OFF
+
+// FUSES END
+
+#define LED_LAT LATDbits.LATD1
+#define LED_TRIS TRISDbits.TRISD1
+
+void main(void) {
+  LED_TRIS = 0; // Pin as output
+  LED_LAT = 0;  // LED off
+
+  while (1) {
+    LED_LAT = !LED_LAT; // Toggle LED
+    delay1ktcy(500);    // 500ms @ 1MHz
+  }
+}
--- a/c/blinkc/main.hex
+++ b/c/blinkc/main.hex
@ -0,0 +1,25 @@
+:020000040000FA
+:1000000002EF00F011EEFFF021EEFFF0F86AA68E8D
+:10001000A69C07EEFFF00068ED6A0050FDE11C0EA3
+:10002000F66E010EF76E000EF86E0900F5CF05F0C2
+:100030000900F5CF06F034D00900F5CF00F0090033
+:10004000F5CF01F00900F5CF02F009000900F5CF66
+:10005000E9FF0900F5CFEAFF090009000900F5CF23
+:1000600003F00900F5CF04F009000900F6CF07F00E
+:10007000F7CF08F0F8CF09F000C0F6FF01C0F7FF96
+:1000800002C0F8FF03D00900F5CFEEFF0306FBE244
+:100090000406F9E207C0F6FF08C0F7FF09C0F8FF41
+:1000A0000506CAE20606C8E276EC00F0FFD7E806CD
+:1000B000E56E630E6AEC00F0E4500BE000D0E56EF4
+:1000C000630E6AEC00F000D000D00000E450E82E8F
+:1000D000F6D71200E8060000E85007E000D000D094
+:1000E00000D000D00000E82EFAD7120095928C9232
+:1000F000006A8CB2002A0050D880E866D890006A66
+:1001000000360050010BE844F46E8C50FD0BF410E7
+:100110008C6EF40E57EC00F0EBD7120001002A01B0
+:0C01200000006000000001000000000072
+:020000040030CA
+:010001000CF2
+:010003001EDE
+:010006008178
+:00000001FF
--- a/c/blinkc/main.o
+++ b/c/blinkc/main.o
--- a/c/cuentac/Makefile
+++ b/c/cuentac/Makefile
@ -0,0 +1,32 @@
+# My pic workflow makefile by Fernando R Jacobo
+# Dependencies
+# SDCC Small Device C Compiler
+# pk2cmd for pickit pic programmers
+
+# C compiler variables
+SRC=*.c
+CC=sdcc
+FAMILY=pic16
+PROC=18f4550
+
+# ASM and program variables
+PPROC=PIC18F4550
+ASMPROC=18F4550
+
+all: $(SRC:.c=.hex)
+
+comp: $(SRC)
+	$(CC) --use-non-free -m$(FAMILY) -p$(PROC) $^
+
+clean:
+	rm -f $(SRC:.c=.asm) $(SRC:.c=.cod) $(SRC:.c=.hex) $(SRC:.c=.lst) $(SRC:.c=.o)
+
+program:
+	pk2cmd -M -P${PPROC} -Fmain.hex
+
+asm: *.asm
+	gpasm -p ${ASMPROC} -o main.hex $^
+
+asmp: asm program
+
+.PHONY: all clean
--- a/c/cuentac/main.asm
+++ b/c/cuentac/main.asm
@ -0,0 +1,472 @@
+;--------------------------------------------------------
+; File Created by SDCC : free open source ISO C Compiler
+; Version 4.5.0 #15242 (Linux)
+;--------------------------------------------------------
+; PIC16 port for the Microchip 16-bit core micros
+;--------------------------------------------------------
+	list	p=18f4550
+	radix	dec
+	CONFIG	XINST=OFF
+	CONFIG	FOSC=HS
+	CONFIG	WDT=OFF
+	CONFIG	LVP=OFF
+	CONFIG	MCLRE=OFF
+
+
+;--------------------------------------------------------
+; public variables in this module
+;--------------------------------------------------------
+	global	_sram_end
+	global	_number_to_7seg
+	global	_main
+
+;--------------------------------------------------------
+; extern variables in this module
+;--------------------------------------------------------
+	extern	_SPPCFGbits
+	extern	_SPPEPSbits
+	extern	_SPPCONbits
+	extern	_UFRMLbits
+	extern	_UFRMHbits
+	extern	_UIRbits
+	extern	_UIEbits
+	extern	_UEIRbits
+	extern	_UEIEbits
+	extern	_USTATbits
+	extern	_UCONbits
+	extern	_UADDRbits
+	extern	_UCFGbits
+	extern	_UEP0bits
+	extern	_UEP1bits
+	extern	_UEP2bits
+	extern	_UEP3bits
+	extern	_UEP4bits
+	extern	_UEP5bits
+	extern	_UEP6bits
+	extern	_UEP7bits
+	extern	_UEP8bits
+	extern	_UEP9bits
+	extern	_UEP10bits
+	extern	_UEP11bits
+	extern	_UEP12bits
+	extern	_UEP13bits
+	extern	_UEP14bits
+	extern	_UEP15bits
+	extern	_PORTAbits
+	extern	_PORTBbits
+	extern	_PORTCbits
+	extern	_PORTDbits
+	extern	_PORTEbits
+	extern	_LATAbits
+	extern	_LATBbits
+	extern	_LATCbits
+	extern	_LATDbits
+	extern	_LATEbits
+	extern	_DDRAbits
+	extern	_TRISAbits
+	extern	_DDRBbits
+	extern	_TRISBbits
+	extern	_DDRCbits
+	extern	_TRISCbits
+	extern	_DDRDbits
+	extern	_TRISDbits
+	extern	_DDREbits
+	extern	_TRISEbits
+	extern	_OSCTUNEbits
+	extern	_PIE1bits
+	extern	_PIR1bits
+	extern	_IPR1bits
+	extern	_PIE2bits
+	extern	_PIR2bits
+	extern	_IPR2bits
+	extern	_EECON1bits
+	extern	_RCSTAbits
+	extern	_TXSTAbits
+	extern	_T3CONbits
+	extern	_CMCONbits
+	extern	_CVRCONbits
+	extern	_CCP1ASbits
+	extern	_ECCP1ASbits
+	extern	_CCP1DELbits
+	extern	_ECCP1DELbits
+	extern	_BAUDCONbits
+	extern	_BAUDCTLbits
+	extern	_CCP2CONbits
+	extern	_CCP1CONbits
+	extern	_ECCP1CONbits
+	extern	_ADCON2bits
+	extern	_ADCON1bits
+	extern	_ADCON0bits
+	extern	_SSPCON2bits
+	extern	_SSPCON1bits
+	extern	_SSPSTATbits
+	extern	_T2CONbits
+	extern	_T1CONbits
+	extern	_RCONbits
+	extern	_WDTCONbits
+	extern	_HLVDCONbits
+	extern	_LVDCONbits
+	extern	_OSCCONbits
+	extern	_T0CONbits
+	extern	_STATUSbits
+	extern	_INTCON3bits
+	extern	_INTCON2bits
+	extern	_INTCONbits
+	extern	_STKPTRbits
+	extern	_SPPDATA
+	extern	_SPPCFG
+	extern	_SPPEPS
+	extern	_SPPCON
+	extern	_UFRM
+	extern	_UFRML
+	extern	_UFRMH
+	extern	_UIR
+	extern	_UIE
+	extern	_UEIR
+	extern	_UEIE
+	extern	_USTAT
+	extern	_UCON
+	extern	_UADDR
+	extern	_UCFG
+	extern	_UEP0
+	extern	_UEP1
+	extern	_UEP2
+	extern	_UEP3
+	extern	_UEP4
+	extern	_UEP5
+	extern	_UEP6
+	extern	_UEP7
+	extern	_UEP8
+	extern	_UEP9
+	extern	_UEP10
+	extern	_UEP11
+	extern	_UEP12
+	extern	_UEP13
+	extern	_UEP14
+	extern	_UEP15
+	extern	_PORTA
+	extern	_PORTB
+	extern	_PORTC
+	extern	_PORTD
+	extern	_PORTE
+	extern	_LATA
+	extern	_LATB
+	extern	_LATC
+	extern	_LATD
+	extern	_LATE
+	extern	_DDRA
+	extern	_TRISA
+	extern	_DDRB
+	extern	_TRISB
+	extern	_DDRC
+	extern	_TRISC
+	extern	_DDRD
+	extern	_TRISD
+	extern	_DDRE
+	extern	_TRISE
+	extern	_OSCTUNE
+	extern	_PIE1
+	extern	_PIR1
+	extern	_IPR1
+	extern	_PIE2
+	extern	_PIR2
+	extern	_IPR2
+	extern	_EECON1
+	extern	_EECON2
+	extern	_EEDATA
+	extern	_EEADR
+	extern	_RCSTA
+	extern	_TXSTA
+	extern	_TXREG
+	extern	_RCREG
+	extern	_SPBRG
+	extern	_SPBRGH
+	extern	_T3CON
+	extern	_TMR3
+	extern	_TMR3L
+	extern	_TMR3H
+	extern	_CMCON
+	extern	_CVRCON
+	extern	_CCP1AS
+	extern	_ECCP1AS
+	extern	_CCP1DEL
+	extern	_ECCP1DEL
+	extern	_BAUDCON
+	extern	_BAUDCTL
+	extern	_CCP2CON
+	extern	_CCPR2
+	extern	_CCPR2L
+	extern	_CCPR2H
+	extern	_CCP1CON
+	extern	_ECCP1CON
+	extern	_CCPR1
+	extern	_CCPR1L
+	extern	_CCPR1H
+	extern	_ADCON2
+	extern	_ADCON1
+	extern	_ADCON0
+	extern	_ADRES
+	extern	_ADRESL
+	extern	_ADRESH
+	extern	_SSPCON2
+	extern	_SSPCON1
+	extern	_SSPSTAT
+	extern	_SSPADD
+	extern	_SSPBUF
+	extern	_T2CON
+	extern	_PR2
+	extern	_TMR2
+	extern	_T1CON
+	extern	_TMR1
+	extern	_TMR1L
+	extern	_TMR1H
+	extern	_RCON
+	extern	_WDTCON
+	extern	_HLVDCON
+	extern	_LVDCON
+	extern	_OSCCON
+	extern	_T0CON
+	extern	_TMR0
+	extern	_TMR0L
+	extern	_TMR0H
+	extern	_STATUS
+	extern	_FSR2L
+	extern	_FSR2H
+	extern	_PLUSW2
+	extern	_PREINC2
+	extern	_POSTDEC2
+	extern	_POSTINC2
+	extern	_INDF2
+	extern	_BSR
+	extern	_FSR1L
+	extern	_FSR1H
+	extern	_PLUSW1
+	extern	_PREINC1
+	extern	_POSTDEC1
+	extern	_POSTINC1
+	extern	_INDF1
+	extern	_WREG
+	extern	_FSR0L
+	extern	_FSR0H
+	extern	_PLUSW0
+	extern	_PREINC0
+	extern	_POSTDEC0
+	extern	_POSTINC0
+	extern	_INDF0
+	extern	_INTCON3
+	extern	_INTCON2
+	extern	_INTCON
+	extern	_PROD
+	extern	_PRODL
+	extern	_PRODH
+	extern	_TABLAT
+	extern	_TBLPTR
+	extern	_TBLPTRL
+	extern	_TBLPTRH
+	extern	_TBLPTRU
+	extern	_PC
+	extern	_PCL
+	extern	_PCLATH
+	extern	_PCLATU
+	extern	_STKPTR
+	extern	_TOS
+	extern	_TOSL
+	extern	_TOSH
+	extern	_TOSU
+	extern	_delay1ktcy
+
+;--------------------------------------------------------
+;	Equates to used internal registers
+;--------------------------------------------------------
+STATUS	equ	0xfd8
+PCL	equ	0xff9
+PCLATH	equ	0xffa
+PCLATU	equ	0xffb
+WREG	equ	0xfe8
+FSR1L	equ	0xfe1
+FSR2L	equ	0xfd9
+POSTINC1	equ	0xfe6
+POSTDEC1	equ	0xfe5
+PREINC1	equ	0xfe4
+PLUSW2	equ	0xfdb
+
+
+; Internal registers
+.registers	udata_ovr	0x0000
+r0x00	res	1
+
+
+ustat_main_00	udata	0X07FF
+_sram_end      	res	0
+
+;--------------------------------------------------------
+; interrupt vector
+;--------------------------------------------------------
+
+;--------------------------------------------------------
+; global & static initialisations
+;--------------------------------------------------------
+; I code from now on!
+; ; Starting pCode block
+S_main__main	code
+_main:
+;	.line	57; main.c	TRISD = 0;
+	CLRF	_TRISD
+;	.line	58; main.c	LATD = 0;
+	CLRF	_LATD
+;	.line	59; main.c	TRISE = 0;
+	CLRF	_TRISE
+;	.line	60; main.c	LATE = 0x04;
+	MOVLW	0x04
+	MOVWF	_LATE
+_00145_DS_:
+;	.line	63; main.c	for (i = 0; i < 15; i++) {
+	CLRF	r0x00
+_00141_DS_:
+;	.line	64; main.c	LATD = number_to_7seg(i);
+	MOVF	r0x00, W
+	MOVWF	POSTDEC1
+	CALL	_number_to_7seg
+	MOVWF	_LATD
+	MOVF	POSTINC1, F
+;	.line	65; main.c	delay1ktcy(250); // 1s @ 1MHz
+	MOVLW	0xfa
+	CALL	_delay1ktcy
+;	.line	63; main.c	for (i = 0; i < 15; i++) {
+	INCF	r0x00, F
+	MOVLW	0x0f
+	SUBWF	r0x00, W
+	BNC	_00141_DS_
+	BRA	_00145_DS_
+;	.line	68; main.c	}
+	RETURN	
+
+; ; Starting pCode block
+S_main__number_to_7seg	code
+_number_to_7seg:
+;	.line	15; main.c	uint8_t number_to_7seg(uint8_t number) {
+	MOVFF	FSR2L, POSTDEC1
+	MOVFF	FSR1L, FSR2L
+	MOVFF	r0x00, POSTDEC1
+	MOVLW	0x02
+	MOVFF	PLUSW2, r0x00
+;	.line	16; main.c	switch (number) {
+	MOVLW	0x10
+	SUBWF	r0x00, W
+	BTFSC	STATUS, 0
+	BRA	_00121_DS_
+	CLRF	PCLATH
+	CLRF	PCLATU
+	RLCF	r0x00, W
+	RLCF	PCLATH, F
+	RLCF	WREG, W
+	RLCF	PCLATH, F
+	ANDLW	0xfc
+	ADDLW	LOW(_00132_DS_)
+	MOVWF	POSTDEC1
+	MOVLW	HIGH(_00132_DS_)
+	ADDWFC	PCLATH, F
+	MOVLW	UPPER(_00132_DS_)
+	ADDWFC	PCLATU, F
+	MOVF	PREINC1, W
+	MOVWF	PCL
+_00132_DS_:
+	GOTO	_00105_DS_
+	GOTO	_00106_DS_
+	GOTO	_00107_DS_
+	GOTO	_00108_DS_
+	GOTO	_00109_DS_
+	GOTO	_00110_DS_
+	GOTO	_00111_DS_
+	GOTO	_00112_DS_
+	GOTO	_00113_DS_
+	GOTO	_00114_DS_
+	GOTO	_00115_DS_
+	GOTO	_00116_DS_
+	GOTO	_00117_DS_
+	GOTO	_00118_DS_
+	GOTO	_00119_DS_
+	GOTO	_00120_DS_
+_00105_DS_:
+;	.line	18; main.c	return 0x3F;
+	MOVLW	0x3f
+	BRA	_00123_DS_
+_00106_DS_:
+;	.line	20; main.c	return 0x06;
+	MOVLW	0x06
+	BRA	_00123_DS_
+_00107_DS_:
+;	.line	22; main.c	return 0x5B;
+	MOVLW	0x5b
+	BRA	_00123_DS_
+_00108_DS_:
+;	.line	24; main.c	return 0x4F;
+	MOVLW	0x4f
+	BRA	_00123_DS_
+_00109_DS_:
+;	.line	26; main.c	return 0x66;
+	MOVLW	0x66
+	BRA	_00123_DS_
+_00110_DS_:
+;	.line	28; main.c	return 0x6D;
+	MOVLW	0x6d
+	BRA	_00123_DS_
+_00111_DS_:
+;	.line	30; main.c	return 0x7D;
+	MOVLW	0x7d
+	BRA	_00123_DS_
+_00112_DS_:
+;	.line	32; main.c	return 0x07;
+	MOVLW	0x07
+	BRA	_00123_DS_
+_00113_DS_:
+;	.line	34; main.c	return 0x7F;
+	MOVLW	0x7f
+	BRA	_00123_DS_
+_00114_DS_:
+;	.line	36; main.c	return 0x6F;
+	MOVLW	0x6f
+	BRA	_00123_DS_
+_00115_DS_:
+;	.line	38; main.c	return 0x77;
+	MOVLW	0x77
+	BRA	_00123_DS_
+_00116_DS_:
+;	.line	40; main.c	return 0x7c;
+	MOVLW	0x7c
+	BRA	_00123_DS_
+_00117_DS_:
+;	.line	42; main.c	return 0x39;
+	MOVLW	0x39
+	BRA	_00123_DS_
+_00118_DS_:
+;	.line	44; main.c	return 0x5e;
+	MOVLW	0x5e
+	BRA	_00123_DS_
+_00119_DS_:
+;	.line	46; main.c	return 0x79;
+	MOVLW	0x79
+	BRA	_00123_DS_
+_00120_DS_:
+;	.line	48; main.c	return 0x71;
+	MOVLW	0x71
+	BRA	_00123_DS_
+_00121_DS_:
+;	.line	50; main.c	return 0;
+	CLRF	WREG
+_00123_DS_:
+;	.line	52; main.c	}
+	MOVFF	PREINC1, r0x00
+	MOVFF	PREINC1, FSR2L
+	RETURN	
+
+
+
+; Statistics:
+; code size:	  238 (0x00ee) bytes ( 0.18%)
+;           	  119 (0x0077) words
+; udata size:	    0 (0x0000) bytes ( 0.00%)
+; access size:	    1 (0x0001) bytes
+
+
+	end
--- a/c/cuentac/main.c
+++ b/c/cuentac/main.c
@ -0,0 +1,73 @@
+#include <pic18fregs.h>
+#include <delay.h>
+#include <stdint.h>
+
+/* Configs options */
+#pragma config XINST = OFF /* Extended instruction set */
+#pragma config FOSC = HS   /* Internal osc             */
+#pragma config WDT = OFF   /* Watchdog timer           */
+#pragma config LVP = OFF   /* Single Supply ICSP OFF   */
+#pragma config MCLRE = OFF
+
+#define LED_LAT LATDbits.LATD1
+#define LED_TRIS TRISDbits.TRISD1
+
+uint8_t number_to_7seg(uint8_t number) {
+    switch (number) {
+        case 0:
+            return 0x3F;
+        case 1:
+            return 0x06;
+        case 2:
+            return 0x5B;
+        case 3:
+            return 0x4F;
+        case 4:
+            return 0x66;
+        case 5:
+            return 0x6D;
+        case 6:
+            return 0x7D;
+        case 7:
+            return 0x07;
+        case 8:
+            return 0x7F;
+        case 9:
+            return 0x6F;
+        case 0xa:
+            return 0x77;
+        case 0xb:
+            return 0x7c;
+        case 0xC:
+            return 0x39;
+        case 0xd:
+            return 0x5e;
+        case 0xe:
+            return 0x79;
+        case 0xf:
+            return 0x71;
+        default:
+            return 0;
+    }
+}
+
+void main(void) {
+    uint8_t i;
+
+    TRISD = 0;
+    LATD = 0;
+    TRISE = 0;
+    LATE = 0x04;
+
+    while (1) {
+        for (i = 0; i < 15; i++) {
+            LATD = number_to_7seg(i);
+            delay1ktcy(250); // 1s @ 1MHz
+        }
+    }
+}
+
+
+/* NOTES
+ * Looks like I can treat register like normal variables
+ */
--- a/c/cuentac/main.hex
+++ b/c/cuentac/main.hex
@ -0,0 +1,37 @@
+:020000040000FA
+:1000000064EF00F0D9CFE5FFE1CFD9FF00C0E5FFF5
+:10001000020EDBCF00F0100E005CD8B04FD0FA6AB1
+:10002000FB6A0034FA36E834FA36FC0B3C0FE56E16
+:10003000000EFA22000EFB22E450F96E3EEF00F0B3
+:1000400040EF00F042EF00F044EF00F046EF00F028
+:1000500048EF00F04AEF00F04CEF00F04EEF00F0F8
+:1000600050EF00F052EF00F054EF00F056EF00F0C8
+:1000700058EF00F05AEF00F05CEF00F03F0E1FD099
+:10008000060E1DD05B0E1BD04F0E19D0660E17D07A
+:100090006D0E15D07D0E13D0070E11D07F0E0FD030
+:1000A0006F0E0DD0770E0BD07C0E09D0390E07D015
+:1000B0005E0E05D0790E03D0710E01D0E86AE4CF50
+:1000C00000F0E4CFD9FF120011EEFFF021EEFFF0B7
+:1000D000F86AA68EA69C07EEFFF00068ED6A005055
+:1000E000FDE1DA0EF66E010EF76E000EF86E0900F5
+:1000F000F5CF05F00900F5CF06F034D00900F5CFB3
+:1001000000F00900F5CF01F00900F5CF02F0090079
+:100110000900F5CFE9FF0900F5CFEAFF0900090062
+:100120000900F5CF03F00900F5CF04F0090009003C
+:10013000F6CF07F0F7CF08F0F8CF09F000C0F6FFD0
+:1001400001C0F7FF02C0F8FF03D00900F5CFEEFFB2
+:100150000306FBE20406F9E207C0F6FF08C0F7FF5A
+:1001600009C0F8FF0506CAE20606C8E2D8EC00F0AE
+:10017000FFD7E806E56E630ECCEC00F0E4500BE030
+:1001800000D0E56E630ECCEC00F000D000D0000093
+:10019000E450E82EF6D71200E8060000E85007E029
+:1001A00000D000D000D000D00000E82EFAD7120016
+:1001B000956A8C6A966A040E8D6E006A0050E56E30
+:1001C00002EC00F08C6EE652FA0EB9EC00F0002A58
+:1001D0000F0E005CF3E3F1D712000100E80100000C
+:0A01E00060000000010000000000B4
+:020000040030CA
+:010001000CF2
+:010003001EDE
+:02000500038175
+:00000001FF
--- a/c/cuentac/main.o
+++ b/c/cuentac/main.o
--- a/c/interrupt/main.asm
+++ b/c/interrupt/main.asm
@ -0,0 +1,409 @@
+;--------------------------------------------------------
+; File Created by SDCC : free open source ISO C Compiler
+; Version 4.5.0 #15242 (Linux)
+;--------------------------------------------------------
+; PIC16 port for the Microchip 16-bit core micros
+;--------------------------------------------------------
+	list	p=18f4550
+	radix	dec
+	CONFIG	XINST=OFF
+	CONFIG	FOSC=HS
+	CONFIG	WDT=OFF
+	CONFIG	LVP=OFF
+	CONFIG	MCLRE=OFF
+
+
+;--------------------------------------------------------
+; public variables in this module
+;--------------------------------------------------------
+	global	_setup
+	global	_isr
+	global	_main
+	global	_sram_end
+
+;--------------------------------------------------------
+; extern variables in this module
+;--------------------------------------------------------
+	extern	_SPPCFGbits
+	extern	_SPPEPSbits
+	extern	_SPPCONbits
+	extern	_UFRMLbits
+	extern	_UFRMHbits
+	extern	_UIRbits
+	extern	_UIEbits
+	extern	_UEIRbits
+	extern	_UEIEbits
+	extern	_USTATbits
+	extern	_UCONbits
+	extern	_UADDRbits
+	extern	_UCFGbits
+	extern	_UEP0bits
+	extern	_UEP1bits
+	extern	_UEP2bits
+	extern	_UEP3bits
+	extern	_UEP4bits
+	extern	_UEP5bits
+	extern	_UEP6bits
+	extern	_UEP7bits
+	extern	_UEP8bits
+	extern	_UEP9bits
+	extern	_UEP10bits
+	extern	_UEP11bits
+	extern	_UEP12bits
+	extern	_UEP13bits
+	extern	_UEP14bits
+	extern	_UEP15bits
+	extern	_PORTAbits
+	extern	_PORTBbits
+	extern	_PORTCbits
+	extern	_PORTDbits
+	extern	_PORTEbits
+	extern	_LATAbits
+	extern	_LATBbits
+	extern	_LATCbits
+	extern	_LATDbits
+	extern	_LATEbits
+	extern	_DDRAbits
+	extern	_TRISAbits
+	extern	_DDRBbits
+	extern	_TRISBbits
+	extern	_DDRCbits
+	extern	_TRISCbits
+	extern	_DDRDbits
+	extern	_TRISDbits
+	extern	_DDREbits
+	extern	_TRISEbits
+	extern	_OSCTUNEbits
+	extern	_PIE1bits
+	extern	_PIR1bits
+	extern	_IPR1bits
+	extern	_PIE2bits
+	extern	_PIR2bits
+	extern	_IPR2bits
+	extern	_EECON1bits
+	extern	_RCSTAbits
+	extern	_TXSTAbits
+	extern	_T3CONbits
+	extern	_CMCONbits
+	extern	_CVRCONbits
+	extern	_CCP1ASbits
+	extern	_ECCP1ASbits
+	extern	_CCP1DELbits
+	extern	_ECCP1DELbits
+	extern	_BAUDCONbits
+	extern	_BAUDCTLbits
+	extern	_CCP2CONbits
+	extern	_CCP1CONbits
+	extern	_ECCP1CONbits
+	extern	_ADCON2bits
+	extern	_ADCON1bits
+	extern	_ADCON0bits
+	extern	_SSPCON2bits
+	extern	_SSPCON1bits
+	extern	_SSPSTATbits
+	extern	_T2CONbits
+	extern	_T1CONbits
+	extern	_RCONbits
+	extern	_WDTCONbits
+	extern	_HLVDCONbits
+	extern	_LVDCONbits
+	extern	_OSCCONbits
+	extern	_T0CONbits
+	extern	_STATUSbits
+	extern	_INTCON3bits
+	extern	_INTCON2bits
+	extern	_INTCONbits
+	extern	_STKPTRbits
+	extern	_SPPDATA
+	extern	_SPPCFG
+	extern	_SPPEPS
+	extern	_SPPCON
+	extern	_UFRM
+	extern	_UFRML
+	extern	_UFRMH
+	extern	_UIR
+	extern	_UIE
+	extern	_UEIR
+	extern	_UEIE
+	extern	_USTAT
+	extern	_UCON
+	extern	_UADDR
+	extern	_UCFG
+	extern	_UEP0
+	extern	_UEP1
+	extern	_UEP2
+	extern	_UEP3
+	extern	_UEP4
+	extern	_UEP5
+	extern	_UEP6
+	extern	_UEP7
+	extern	_UEP8
+	extern	_UEP9
+	extern	_UEP10
+	extern	_UEP11
+	extern	_UEP12
+	extern	_UEP13
+	extern	_UEP14
+	extern	_UEP15
+	extern	_PORTA
+	extern	_PORTB
+	extern	_PORTC
+	extern	_PORTD
+	extern	_PORTE
+	extern	_LATA
+	extern	_LATB
+	extern	_LATC
+	extern	_LATD
+	extern	_LATE
+	extern	_DDRA
+	extern	_TRISA
+	extern	_DDRB
+	extern	_TRISB
+	extern	_DDRC
+	extern	_TRISC
+	extern	_DDRD
+	extern	_TRISD
+	extern	_DDRE
+	extern	_TRISE
+	extern	_OSCTUNE
+	extern	_PIE1
+	extern	_PIR1
+	extern	_IPR1
+	extern	_PIE2
+	extern	_PIR2
+	extern	_IPR2
+	extern	_EECON1
+	extern	_EECON2
+	extern	_EEDATA
+	extern	_EEADR
+	extern	_RCSTA
+	extern	_TXSTA
+	extern	_TXREG
+	extern	_RCREG
+	extern	_SPBRG
+	extern	_SPBRGH
+	extern	_T3CON
+	extern	_TMR3
+	extern	_TMR3L
+	extern	_TMR3H
+	extern	_CMCON
+	extern	_CVRCON
+	extern	_CCP1AS
+	extern	_ECCP1AS
+	extern	_CCP1DEL
+	extern	_ECCP1DEL
+	extern	_BAUDCON
+	extern	_BAUDCTL
+	extern	_CCP2CON
+	extern	_CCPR2
+	extern	_CCPR2L
+	extern	_CCPR2H
+	extern	_CCP1CON
+	extern	_ECCP1CON
+	extern	_CCPR1
+	extern	_CCPR1L
+	extern	_CCPR1H
+	extern	_ADCON2
+	extern	_ADCON1
+	extern	_ADCON0
+	extern	_ADRES
+	extern	_ADRESL
+	extern	_ADRESH
+	extern	_SSPCON2
+	extern	_SSPCON1
+	extern	_SSPSTAT
+	extern	_SSPADD
+	extern	_SSPBUF
+	extern	_T2CON
+	extern	_PR2
+	extern	_TMR2
+	extern	_T1CON
+	extern	_TMR1
+	extern	_TMR1L
+	extern	_TMR1H
+	extern	_RCON
+	extern	_WDTCON
+	extern	_HLVDCON
+	extern	_LVDCON
+	extern	_OSCCON
+	extern	_T0CON
+	extern	_TMR0
+	extern	_TMR0L
+	extern	_TMR0H
+	extern	_STATUS
+	extern	_FSR2L
+	extern	_FSR2H
+	extern	_PLUSW2
+	extern	_PREINC2
+	extern	_POSTDEC2
+	extern	_POSTINC2
+	extern	_INDF2
+	extern	_BSR
+	extern	_FSR1L
+	extern	_FSR1H
+	extern	_PLUSW1
+	extern	_PREINC1
+	extern	_POSTDEC1
+	extern	_POSTINC1
+	extern	_INDF1
+	extern	_WREG
+	extern	_FSR0L
+	extern	_FSR0H
+	extern	_PLUSW0
+	extern	_PREINC0
+	extern	_POSTDEC0
+	extern	_POSTINC0
+	extern	_INDF0
+	extern	_INTCON3
+	extern	_INTCON2
+	extern	_INTCON
+	extern	_PROD
+	extern	_PRODL
+	extern	_PRODH
+	extern	_TABLAT
+	extern	_TBLPTR
+	extern	_TBLPTRL
+	extern	_TBLPTRH
+	extern	_TBLPTRU
+	extern	_PC
+	extern	_PCL
+	extern	_PCLATH
+	extern	_PCLATU
+	extern	_STKPTR
+	extern	_TOS
+	extern	_TOSL
+	extern	_TOSH
+	extern	_TOSU
+	extern	_delay1ktcy
+
+;--------------------------------------------------------
+;	Equates to used internal registers
+;--------------------------------------------------------
+STATUS	equ	0xfd8
+PCLATH	equ	0xffa
+PCLATU	equ	0xffb
+BSR	equ	0xfe0
+FSR0L	equ	0xfe9
+FSR0H	equ	0xfea
+FSR1L	equ	0xfe1
+FSR2L	equ	0xfd9
+POSTDEC1	equ	0xfe5
+PREINC1	equ	0xfe4
+PRODL	equ	0xff3
+PRODH	equ	0xff4
+
+
+ustat_main_00	udata	0X07FF
+_sram_end      	res	0
+
+;--------------------------------------------------------
+; interrupt vector
+;--------------------------------------------------------
+
+;--------------------------------------------------------
+; global & static initialisations
+;--------------------------------------------------------
+; ; Starting pCode block for absolute section
+; ;-----------------------------------------
+S_main_ivec_0x1_isr	code	0X000008
+ivec_0x1_isr:
+	GOTO	_isr
+
+; I code from now on!
+; ; Starting pCode block
+S_main__main	code
+_main:
+;	.line	45; main.c	setup();
+	CALL	_setup
+_00119_DS_:
+	BRA	_00119_DS_
+;	.line	50; main.c	}
+	RETURN	
+
+; ; Starting pCode block
+S_main__isr	code
+_isr:
+;	.line	33; main.c	void isr(void) __interrupt (1) {
+	MOVFF	STATUS, POSTDEC1
+	MOVFF	BSR, POSTDEC1
+	MOVWF	POSTDEC1
+	MOVFF	PRODL, POSTDEC1
+	MOVFF	PRODH, POSTDEC1
+	MOVFF	FSR0L, POSTDEC1
+	MOVFF	FSR0H, POSTDEC1
+	MOVFF	PCLATH, POSTDEC1
+	MOVFF	PCLATU, POSTDEC1
+	MOVFF	FSR2L, POSTDEC1
+	MOVFF	FSR1L, FSR2L
+;	.line	34; main.c	if (INTCONbits.RBIF) {
+	BTFSS	_INTCONbits, 0
+	BRA	_00111_DS_
+;	.line	36; main.c	WREG = PORTB;
+	MOVF	_PORTB, W
+;	.line	37; main.c	LATD = ~LATD;
+	COMF	_LATD, F
+;	.line	38; main.c	delay1ktcy(250);
+	MOVLW	0xfa
+	CALL	_delay1ktcy
+_00111_DS_:
+;	.line	41; main.c	INTCONbits.RBIF = 0;
+	BCF	_INTCONbits, 0
+;	.line	42; main.c	}
+	MOVFF	PREINC1, FSR2L
+	MOVFF	PREINC1, PCLATU
+	MOVFF	PREINC1, PCLATH
+	MOVFF	PREINC1, FSR0H
+	MOVFF	PREINC1, FSR0L
+	MOVFF	PREINC1, PRODH
+	MOVFF	PREINC1, PRODL
+	MOVF	PREINC1, W
+	MOVFF	PREINC1, BSR
+	MOVFF	PREINC1, STATUS
+	RETFIE	
+
+; ; Starting pCode block
+S_main__setup	code
+_setup:
+;	.line	15; main.c	void setup(void){
+	MOVFF	FSR2L, POSTDEC1
+	MOVFF	FSR1L, FSR2L
+;	.line	16; main.c	LATD = 0;
+	CLRF	_LATD
+;	.line	17; main.c	TRISD = 0;
+	CLRF	_TRISD
+;	.line	19; main.c	TRISB = 0xff;
+	MOVLW	0xff
+	MOVWF	_TRISB
+;	.line	20; main.c	LATB = 0x00;
+	CLRF	_LATB
+;	.line	21; main.c	ADCON1 = 0xf;
+	MOVLW	0x0f
+	MOVWF	_ADCON1
+;	.line	23; main.c	INTCONbits.GIE = 1;
+	BSF	_INTCONbits, 7
+;	.line	24; main.c	INTCONbits.PEIE = 1;
+	BSF	_INTCONbits, 6
+;	.line	25; main.c	INTCONbits.RBIE = 1;
+	BSF	_INTCONbits, 3
+;	.line	26; main.c	INTCON2bits.RBPU = 0;
+	BCF	_INTCON2bits, 7
+;	.line	27; main.c	INTCON2bits.RBIP = 1;
+	BSF	_INTCON2bits, 0
+;	.line	28; main.c	RCONbits.IPEN = 1;
+	BSF	_RCONbits, 7
+;	.line	30; main.c	INTCONbits.INT0IE = 1;
+	BSF	_INTCONbits, 4
+;	.line	31; main.c	}
+	MOVFF	PREINC1, FSR2L
+	RETURN	
+
+
+
+; Statistics:
+; code size:	  150 (0x0096) bytes ( 0.11%)
+;           	   75 (0x004b) words
+; udata size:	    0 (0x0000) bytes ( 0.00%)
+; access size:	    0 (0x0000) bytes
+
+
+	end
--- a/c/interrupt/main.c
+++ b/c/interrupt/main.c
@ -0,0 +1,51 @@
+#include <delay.h>
+#include <pic18fregs.h>
+
+// FUSES START
+#pragma config XINST = OFF
+#pragma config FOSC = HS
+#pragma config WDT = OFF
+#pragma config LVP = OFF
+#pragma config MCLRE = OFF
+
+void setup(void);
+void isr(void) __interrupt (1);
+int main(void);
+
+void setup(void){
+    LATD = 0;
+    TRISD = 0;
+    
+    TRISB = 0xff;
+    LATB = 0x00;
+    ADCON1 = 0xf;
+
+    INTCONbits.GIE = 1;
+    INTCONbits.PEIE = 1;
+    INTCONbits.RBIE = 1;
+    INTCON2bits.RBPU = 0;
+    INTCON2bits.RBIP = 1;
+    RCONbits.IPEN = 1;
+
+    INTCONbits.INT0IE = 1;
+}
+
+void isr(void) __interrupt (1) {
+    if (INTCONbits.RBIF) {
+    //if (INTCONbits.INT0IF) {
+    WREG = PORTB; /* Read portb to elimitate mismatch condition */
+    LATD = ~LATD;
+    delay1ktcy(250);
+    }
+    //INTCONbits.INT0IF = 0;
+    INTCONbits.RBIF = 0;
+}
+
+int main(void) {
+    setup();
+    for (;;) {
+        //LATD = PORTB;
+    }
+    return 0;
+}
+
--- a/c/interrupt/main.hex
+++ b/c/interrupt/main.hex
@ -0,0 +1,33 @@
+:020000040000FA
+:0600000006EF00F0000015
+:080008005BEF00F011EEFFF0C8
+:1000100021EEFFF0F86AA68EA69C07EEFFF00068BE
+:10002000ED6A0050FDE1800EF66E010EF76E000ED7
+:10003000F86E0900F5CF05F00900F5CF06F034D0D1
+:100040000900F5CF00F00900F5CF01F00900F5CF68
+:1000500002F009000900F5CFE9FF0900F5CFEAFF3A
+:10006000090009000900F5CF03F00900F5CF04F0FD
+:1000700009000900F6CF07F0F7CF08F0F8CF09F034
+:1000800000C0F6FF01C0F7FF02C0F8FF03D009006F
+:10009000F5CFEEFF0306FBE20406F9E207C0F6FF28
+:1000A00008C0F7FF09C0F8FF0506CAE20606C8E265
+:1000B000C7EC00F0FFD7D8CFE5FFE0CFE5FFE56E56
+:1000C000F3CFE5FFF4CFE5FFE9CFE5FFEACFE5FFAA
+:1000D000FACFE5FFFBCFE5FFD9CFE5FFE1CFD9FFB1
+:1000E000F2A005D081508C1EFA0E8CEC00F0F2903C
+:1000F000E4CFD9FFE4CFFBFFE4CFFAFFE4CFEAFF80
+:10010000E4CFE9FFE4CFF4FFE4CFF3FFE450E4CF22
+:10011000E0FFE4CFD8FF1000E806E56E630E9FEC29
+:1001200000F0E4500BE000D0E56E630E9FEC00F0B1
+:1001300000D000D00000E450E82EF6D71200E80608
+:100140000000E85007E000D000D000D000D0000050
+:10015000E82EFAD71200D9CFE5FFE1CFD9FF8C6A9C
+:10016000956AFF0E936E8A6A0F0EC16EF28EF28C44
+:10017000F286F19EF180D08EF288E4CFD9FF120092
+:100180000100040000006000000001000000ABEC72
+:0601900000F0FFD7120091
+:020000040030CA
+:010001000CF2
+:010003001EDE
+:02000500038175
+:00000001FF
--- a/c/interrupt/main.o
+++ b/c/interrupt/main.o
--- a/c/interrupt/makefile
+++ b/c/interrupt/makefile
@ -0,0 +1,32 @@
+# My pic workflow makefile by Fernando R Jacobo
+# Dependencies
+# SDCC Small Device C Compiler
+# pk2cmd for pickit pic programmers
+
+# C compiler variables
+SRC=*.c
+CC=sdcc
+FAMILY=pic16
+PROC=18f4550
+
+# ASM and program variables
+PPROC=PIC18F4550
+ASMPROC=18F4550
+
+all: $(SRC:.c=.hex)
+
+comp: $(SRC)
+	$(CC) --use-non-free -m$(FAMILY) -p$(PROC) $^
+
+clean:
+	rm -f $(SRC:.c=.asm) $(SRC:.c=.cod) $(SRC:.c=.hex) $(SRC:.c=.lst) $(SRC:.c=.o)
+
+program:
+	pk2cmd -M -P${PPROC} -Fmain.hex
+
+asm: *.asm
+	gpasm -p ${ASMPROC} -o main.hex $^
+
+asmp: asm program
+
+.PHONY: all clean
--- a/c/rotac/Makefile
+++ b/c/rotac/Makefile
@ -0,0 +1,34 @@
+# My pic workflow makefile by Fernando R Jacobo
+# Dependencies
+# SDCC Small Device C Compiler
+# pk2cmd for pickit pic programmers
+
+# C compiler variables
+SRC=*.c
+CC=sdcc
+FAMILY=pic16
+PROC=18f4550
+
+# ASM and program variables
+PPROC=PIC18F4550
+ASMPROC=18F4550
+
+all: $(SRC:.c=.hex)
+
+comp: $(SRC)
+	$(CC) --use-non-free -m$(FAMILY) -p$(PROC) $^
+
+clean:
+	rm -f $(SRC:.c=.asm) $(SRC:.c=.cod) $(SRC:.c=.hex) $(SRC:.c=.lst) $(SRC:.c=.o)
+
+program:
+	pk2cmd -M -P${PPROC} -Fmain.hex
+
+asm: *.asm
+	gpasm -p ${ASMPROC} -o main.hex $^
+
+asmp: asm program
+
+compp: comp program
+
+.PHONY: all clean
--- a/c/rotac/compile_commands.json
+++ b/c/rotac/compile_commands.json
@ -0,0 +1 @@
+[]
--- a/c/rotac/main.asm
+++ b/c/rotac/main.asm
@ -0,0 +1,710 @@
+;--------------------------------------------------------
+; File Created by SDCC : free open source ISO C Compiler
+; Version 4.5.0 #15242 (Linux)
+;--------------------------------------------------------
+; PIC16 port for the Microchip 16-bit core micros
+;--------------------------------------------------------
+	list	p=18f4550
+	radix	dec
+	CONFIG	XINST=OFF
+	CONFIG	FOSC=HS
+	CONFIG	WDT=OFF
+	CONFIG	LVP=OFF
+	CONFIG	MCLRE=OFF
+
+
+;--------------------------------------------------------
+; public variables in this module
+;--------------------------------------------------------
+	global	_main
+	global	_rota1
+	global	_rota2
+	global	_rota3
+	global	_rota4
+	global	_rota5
+	global	_sram_end
+
+;--------------------------------------------------------
+; extern variables in this module
+;--------------------------------------------------------
+	extern	_SPPCFGbits
+	extern	_SPPEPSbits
+	extern	_SPPCONbits
+	extern	_UFRMLbits
+	extern	_UFRMHbits
+	extern	_UIRbits
+	extern	_UIEbits
+	extern	_UEIRbits
+	extern	_UEIEbits
+	extern	_USTATbits
+	extern	_UCONbits
+	extern	_UADDRbits
+	extern	_UCFGbits
+	extern	_UEP0bits
+	extern	_UEP1bits
+	extern	_UEP2bits
+	extern	_UEP3bits
+	extern	_UEP4bits
+	extern	_UEP5bits
+	extern	_UEP6bits
+	extern	_UEP7bits
+	extern	_UEP8bits
+	extern	_UEP9bits
+	extern	_UEP10bits
+	extern	_UEP11bits
+	extern	_UEP12bits
+	extern	_UEP13bits
+	extern	_UEP14bits
+	extern	_UEP15bits
+	extern	_PORTAbits
+	extern	_PORTBbits
+	extern	_PORTCbits
+	extern	_PORTDbits
+	extern	_PORTEbits
+	extern	_LATAbits
+	extern	_LATBbits
+	extern	_LATCbits
+	extern	_LATDbits
+	extern	_LATEbits
+	extern	_DDRAbits
+	extern	_TRISAbits
+	extern	_DDRBbits
+	extern	_TRISBbits
+	extern	_DDRCbits
+	extern	_TRISCbits
+	extern	_DDRDbits
+	extern	_TRISDbits
+	extern	_DDREbits
+	extern	_TRISEbits
+	extern	_OSCTUNEbits
+	extern	_PIE1bits
+	extern	_PIR1bits
+	extern	_IPR1bits
+	extern	_PIE2bits
+	extern	_PIR2bits
+	extern	_IPR2bits
+	extern	_EECON1bits
+	extern	_RCSTAbits
+	extern	_TXSTAbits
+	extern	_T3CONbits
+	extern	_CMCONbits
+	extern	_CVRCONbits
+	extern	_CCP1ASbits
+	extern	_ECCP1ASbits
+	extern	_CCP1DELbits
+	extern	_ECCP1DELbits
+	extern	_BAUDCONbits
+	extern	_BAUDCTLbits
+	extern	_CCP2CONbits
+	extern	_CCP1CONbits
+	extern	_ECCP1CONbits
+	extern	_ADCON2bits
+	extern	_ADCON1bits
+	extern	_ADCON0bits
+	extern	_SSPCON2bits
+	extern	_SSPCON1bits
+	extern	_SSPSTATbits
+	extern	_T2CONbits
+	extern	_T1CONbits
+	extern	_RCONbits
+	extern	_WDTCONbits
+	extern	_HLVDCONbits
+	extern	_LVDCONbits
+	extern	_OSCCONbits
+	extern	_T0CONbits
+	extern	_STATUSbits
+	extern	_INTCON3bits
+	extern	_INTCON2bits
+	extern	_INTCONbits
+	extern	_STKPTRbits
+	extern	_SPPDATA
+	extern	_SPPCFG
+	extern	_SPPEPS
+	extern	_SPPCON
+	extern	_UFRM
+	extern	_UFRML
+	extern	_UFRMH
+	extern	_UIR
+	extern	_UIE
+	extern	_UEIR
+	extern	_UEIE
+	extern	_USTAT
+	extern	_UCON
+	extern	_UADDR
+	extern	_UCFG
+	extern	_UEP0
+	extern	_UEP1
+	extern	_UEP2
+	extern	_UEP3
+	extern	_UEP4
+	extern	_UEP5
+	extern	_UEP6
+	extern	_UEP7
+	extern	_UEP8
+	extern	_UEP9
+	extern	_UEP10
+	extern	_UEP11
+	extern	_UEP12
+	extern	_UEP13
+	extern	_UEP14
+	extern	_UEP15
+	extern	_PORTA
+	extern	_PORTB
+	extern	_PORTC
+	extern	_PORTD
+	extern	_PORTE
+	extern	_LATA
+	extern	_LATB
+	extern	_LATC
+	extern	_LATD
+	extern	_LATE
+	extern	_DDRA
+	extern	_TRISA
+	extern	_DDRB
+	extern	_TRISB
+	extern	_DDRC
+	extern	_TRISC
+	extern	_DDRD
+	extern	_TRISD
+	extern	_DDRE
+	extern	_TRISE
+	extern	_OSCTUNE
+	extern	_PIE1
+	extern	_PIR1
+	extern	_IPR1
+	extern	_PIE2
+	extern	_PIR2
+	extern	_IPR2
+	extern	_EECON1
+	extern	_EECON2
+	extern	_EEDATA
+	extern	_EEADR
+	extern	_RCSTA
+	extern	_TXSTA
+	extern	_TXREG
+	extern	_RCREG
+	extern	_SPBRG
+	extern	_SPBRGH
+	extern	_T3CON
+	extern	_TMR3
+	extern	_TMR3L
+	extern	_TMR3H
+	extern	_CMCON
+	extern	_CVRCON
+	extern	_CCP1AS
+	extern	_ECCP1AS
+	extern	_CCP1DEL
+	extern	_ECCP1DEL
+	extern	_BAUDCON
+	extern	_BAUDCTL
+	extern	_CCP2CON
+	extern	_CCPR2
+	extern	_CCPR2L
+	extern	_CCPR2H
+	extern	_CCP1CON
+	extern	_ECCP1CON
+	extern	_CCPR1
+	extern	_CCPR1L
+	extern	_CCPR1H
+	extern	_ADCON2
+	extern	_ADCON1
+	extern	_ADCON0
+	extern	_ADRES
+	extern	_ADRESL
+	extern	_ADRESH
+	extern	_SSPCON2
+	extern	_SSPCON1
+	extern	_SSPSTAT
+	extern	_SSPADD
+	extern	_SSPBUF
+	extern	_T2CON
+	extern	_PR2
+	extern	_TMR2
+	extern	_T1CON
+	extern	_TMR1
+	extern	_TMR1L
+	extern	_TMR1H
+	extern	_RCON
+	extern	_WDTCON
+	extern	_HLVDCON
+	extern	_LVDCON
+	extern	_OSCCON
+	extern	_T0CON
+	extern	_TMR0
+	extern	_TMR0L
+	extern	_TMR0H
+	extern	_STATUS
+	extern	_FSR2L
+	extern	_FSR2H
+	extern	_PLUSW2
+	extern	_PREINC2
+	extern	_POSTDEC2
+	extern	_POSTINC2
+	extern	_INDF2
+	extern	_BSR
+	extern	_FSR1L
+	extern	_FSR1H
+	extern	_PLUSW1
+	extern	_PREINC1
+	extern	_POSTDEC1
+	extern	_POSTINC1
+	extern	_INDF1
+	extern	_WREG
+	extern	_FSR0L
+	extern	_FSR0H
+	extern	_PLUSW0
+	extern	_PREINC0
+	extern	_POSTDEC0
+	extern	_POSTINC0
+	extern	_INDF0
+	extern	_INTCON3
+	extern	_INTCON2
+	extern	_INTCON
+	extern	_PROD
+	extern	_PRODL
+	extern	_PRODH
+	extern	_TABLAT
+	extern	_TBLPTR
+	extern	_TBLPTRL
+	extern	_TBLPTRH
+	extern	_TBLPTRU
+	extern	_PC
+	extern	_PCL
+	extern	_PCLATH
+	extern	_PCLATU
+	extern	_STKPTR
+	extern	_TOS
+	extern	_TOSL
+	extern	_TOSH
+	extern	_TOSU
+	extern	_delay1ktcy
+
+;--------------------------------------------------------
+;	Equates to used internal registers
+;--------------------------------------------------------
+STATUS	equ	0xfd8
+FSR1L	equ	0xfe1
+FSR2L	equ	0xfd9
+POSTDEC1	equ	0xfe5
+PREINC1	equ	0xfe4
+
+
+; Internal registers
+.registers	udata_ovr	0x0000
+r0x00	res	1
+r0x01	res	1
+
+
+ustat_main_00	udata	0X07FF
+_sram_end      	res	0
+
+;--------------------------------------------------------
+; interrupt vector
+;--------------------------------------------------------
+
+;--------------------------------------------------------
+; global & static initialisations
+;--------------------------------------------------------
+; I code from now on!
+; ; Starting pCode block
+S_main__main	code
+_main:
+;	.line	23; main.c	TRISD = 0;
+	CLRF	_TRISD
+;	.line	24; main.c	LATD = 0;
+	CLRF	_LATD
+;	.line	25; main.c	TRISE = 0;
+	CLRF	_TRISE
+;	.line	26; main.c	LATE = 0x04;
+	MOVLW	0x04
+	MOVWF	_LATE
+;	.line	27; main.c	TRISB = 0xff;
+	MOVLW	0xff
+	MOVWF	_TRISB
+;	.line	30; main.c	INTCON2bits.RBPU = 0;
+	BCF	_INTCON2bits, 7
+;	.line	31; main.c	ADCON1 = 0x0f;
+	MOVLW	0x0f
+	MOVWF	_ADCON1
+_00112_DS_:
+;	.line	35; main.c	port = PORTB;
+	MOVFF	_PORTB, r0x00
+;	.line	36; main.c	switch (port) {
+	MOVF	r0x00, W
+	XORLW	0x01
+	BZ	_00105_DS_
+	MOVF	r0x00, W
+	XORLW	0x02
+	BZ	_00106_DS_
+	MOVF	r0x00, W
+	XORLW	0x04
+	BZ	_00107_DS_
+	MOVF	r0x00, W
+	XORLW	0x08
+	BZ	_00108_DS_
+	MOVF	r0x00, W
+	XORLW	0x10
+	BZ	_00109_DS_
+	BRA	_00110_DS_
+_00105_DS_:
+;	.line	38; main.c	rota1();
+	CALL	_rota1
+;	.line	39; main.c	break;
+	BRA	_00110_DS_
+_00106_DS_:
+;	.line	41; main.c	rota2();
+	CALL	_rota2
+;	.line	42; main.c	break;
+	BRA	_00110_DS_
+_00107_DS_:
+;	.line	44; main.c	rota3();
+	CALL	_rota3
+;	.line	45; main.c	break;
+	BRA	_00110_DS_
+_00108_DS_:
+;	.line	47; main.c	rota4();
+	CALL	_rota4
+;	.line	48; main.c	break;
+	BRA	_00110_DS_
+_00109_DS_:
+;	.line	50; main.c	rota5();
+	CALL	_rota5
+_00110_DS_:
+;	.line	53; main.c	delay1ktcy(50); // 1s @ 1MHz
+	MOVLW	0x32
+	CALL	_delay1ktcy
+	BRA	_00112_DS_
+;	.line	55; main.c	}
+	RETURN	
+
+; ; Starting pCode block
+S_main__rota5	code
+_rota5:
+;	.line	134; main.c	void rota5(void) {
+	MOVFF	FSR2L, POSTDEC1
+	MOVFF	FSR1L, FSR2L
+;	.line	135; main.c	LATD = 0x55;
+	MOVLW	0x55
+	MOVWF	_LATD
+;	.line	136; main.c	delay1ktcy(150);
+	MOVLW	0x96
+	CALL	_delay1ktcy
+;	.line	137; main.c	LATD = 0xAA;
+	MOVLW	0xaa
+	MOVWF	_LATD
+;	.line	138; main.c	delay1ktcy(150);
+	MOVLW	0x96
+	CALL	_delay1ktcy
+;	.line	139; main.c	}
+	MOVFF	PREINC1, FSR2L
+	RETURN	
+
+; ; Starting pCode block
+S_main__rota4	code
+_rota4:
+;	.line	122; main.c	void rota4(void) {
+	MOVFF	FSR2L, POSTDEC1
+	MOVFF	FSR1L, FSR2L
+	MOVFF	r0x00, POSTDEC1
+	MOVFF	r0x01, POSTDEC1
+;	.line	123; main.c	LATD = 1;
+	MOVLW	0x01
+	MOVWF	_LATD
+_00343_DS_:
+;	.line	124; main.c	while (LATD != 0x80) {
+	MOVF	_LATD, W
+	XORLW	0x80
+	BZ	_00345_DS_
+;	.line	125; main.c	delay1ktcy(150);
+	MOVLW	0x96
+	CALL	_delay1ktcy
+;	.line	126; main.c	RLCF(LATD);
+	RLNCF	_LATD, W
+	ANDLW	0xfe
+	MOVWF	r0x00
+	RLNCF	_LATD, W
+	ANDLW	0x01
+	MOVWF	r0x01
+	MOVF	r0x01, W
+	IORWF	r0x00, W
+	MOVWF	_LATD
+	BRA	_00343_DS_
+_00345_DS_:
+;	.line	128; main.c	LATD = 0x80;
+	MOVLW	0x80
+	MOVWF	_LATD
+_00346_DS_:
+;	.line	129; main.c	while (LATD != 0x01) {
+	MOVF	_LATD, W
+	XORLW	0x01
+	BZ	_00349_DS_
+;	.line	130; main.c	delay1ktcy(150);
+	MOVLW	0x96
+	CALL	_delay1ktcy
+;	.line	131; main.c	RRCF(LATD);
+	RRNCF	_LATD, W
+	ANDLW	0x7f
+	MOVWF	r0x00
+	RRNCF	_LATD, W
+	ANDLW	0x80
+	MOVWF	r0x01
+	MOVF	r0x01, W
+	IORWF	r0x00, W
+	MOVWF	_LATD
+	BRA	_00346_DS_
+_00349_DS_:
+;	.line	133; main.c	}
+	MOVFF	PREINC1, r0x01
+	MOVFF	PREINC1, r0x00
+	MOVFF	PREINC1, FSR2L
+	RETURN	
+
+; ; Starting pCode block
+S_main__rota3	code
+_rota3:
+;	.line	73; main.c	void rota3(void) {
+	MOVFF	FSR2L, POSTDEC1
+	MOVFF	FSR1L, FSR2L
+	MOVFF	r0x00, POSTDEC1
+	MOVFF	r0x01, POSTDEC1
+;	.line	74; main.c	LATD = 0x01;
+	MOVLW	0x01
+	MOVWF	_LATD
+_00212_DS_:
+;	.line	75; main.c	while (LATD != 0x80) {
+	MOVF	_LATD, W
+	XORLW	0x80
+	BZ	_00214_DS_
+;	.line	76; main.c	delay1ktcy(150);
+	MOVLW	0x96
+	CALL	_delay1ktcy
+;	.line	77; main.c	RLCF(LATD);
+	RLNCF	_LATD, W
+	ANDLW	0xfe
+	MOVWF	r0x00
+	RLNCF	_LATD, W
+	ANDLW	0x01
+	MOVWF	r0x01
+	MOVF	r0x01, W
+	IORWF	r0x00, W
+	MOVWF	_LATD
+	BRA	_00212_DS_
+_00214_DS_:
+;	.line	79; main.c	LATD = 0x81;
+	MOVLW	0x81
+	MOVWF	_LATD
+_00215_DS_:
+;	.line	80; main.c	while (LATD != 0xC0) {
+	MOVF	_LATD, W
+	XORLW	0xc0
+	BZ	_00217_DS_
+;	.line	81; main.c	delay1ktcy(150);
+	MOVLW	0x96
+	CALL	_delay1ktcy
+;	.line	82; main.c	LATD = LATD << 1;
+	BCF	STATUS, 0
+	RLCF	_LATD, F
+;	.line	83; main.c	LATD |= 0x80;
+	BSF	_LATD, 7
+	BRA	_00215_DS_
+_00217_DS_:
+;	.line	85; main.c	LATD = 0xC1;
+	MOVLW	0xc1
+	MOVWF	_LATD
+_00218_DS_:
+;	.line	86; main.c	while (LATD != 0xE0) {
+	MOVF	_LATD, W
+	XORLW	0xe0
+	BZ	_00220_DS_
+;	.line	87; main.c	delay1ktcy(150);
+	MOVLW	0x96
+	CALL	_delay1ktcy
+;	.line	88; main.c	LATD = LATD << 1;
+	BCF	STATUS, 0
+	RLCF	_LATD, F
+;	.line	89; main.c	LATD |= 0xC0;
+	MOVLW	0xc0
+	IORWF	_LATD, F
+	BRA	_00218_DS_
+_00220_DS_:
+;	.line	91; main.c	LATD = 0xE1;
+	MOVLW	0xe1
+	MOVWF	_LATD
+_00221_DS_:
+;	.line	92; main.c	while (LATD != 0xF0) {
+	MOVF	_LATD, W
+	XORLW	0xf0
+	BZ	_00223_DS_
+;	.line	93; main.c	delay1ktcy(150);
+	MOVLW	0x96
+	CALL	_delay1ktcy
+;	.line	94; main.c	LATD = LATD << 1;
+	BCF	STATUS, 0
+	RLCF	_LATD, F
+;	.line	95; main.c	LATD |= 0xE0;
+	MOVLW	0xe0
+	IORWF	_LATD, F
+	BRA	_00221_DS_
+_00223_DS_:
+;	.line	97; main.c	LATD = 0xF1;
+	MOVLW	0xf1
+	MOVWF	_LATD
+_00224_DS_:
+;	.line	98; main.c	while (LATD != 0xF8) {
+	MOVF	_LATD, W
+	XORLW	0xf8
+	BZ	_00226_DS_
+;	.line	99; main.c	delay1ktcy(150);
+	MOVLW	0x96
+	CALL	_delay1ktcy
+;	.line	100; main.c	LATD = LATD << 1;
+	BCF	STATUS, 0
+	RLCF	_LATD, F
+;	.line	101; main.c	LATD |= 0xF0;
+	MOVLW	0xf0
+	IORWF	_LATD, F
+	BRA	_00224_DS_
+_00226_DS_:
+;	.line	103; main.c	LATD = 0xF9;
+	MOVLW	0xf9
+	MOVWF	_LATD
+_00227_DS_:
+;	.line	104; main.c	while (LATD != 0xFC) {
+	MOVF	_LATD, W
+	XORLW	0xfc
+	BZ	_00229_DS_
+;	.line	105; main.c	delay1ktcy(150);
+	MOVLW	0x96
+	CALL	_delay1ktcy
+;	.line	106; main.c	LATD = LATD << 1;
+	BCF	STATUS, 0
+	RLCF	_LATD, F
+;	.line	107; main.c	LATD |= 0xF8;
+	MOVLW	0xf8
+	IORWF	_LATD, F
+	BRA	_00227_DS_
+_00229_DS_:
+;	.line	109; main.c	LATD = 0xFD;
+	MOVLW	0xfd
+	MOVWF	_LATD
+_00230_DS_:
+;	.line	110; main.c	while (LATD != 0xFE) {
+	MOVF	_LATD, W
+	XORLW	0xfe
+	BZ	_00232_DS_
+;	.line	111; main.c	delay1ktcy(150);
+	MOVLW	0x96
+	CALL	_delay1ktcy
+;	.line	112; main.c	LATD = LATD << 1;
+	BCF	STATUS, 0
+	RLCF	_LATD, F
+;	.line	113; main.c	LATD |= 0xFC;
+	MOVLW	0xfc
+	IORWF	_LATD, F
+	BRA	_00230_DS_
+_00232_DS_:
+;	.line	115; main.c	delay1ktcy(150);
+	MOVLW	0x96
+	CALL	_delay1ktcy
+;	.line	116; main.c	LATD = 0xFE;
+	MOVLW	0xfe
+	MOVWF	_LATD
+;	.line	117; main.c	delay1ktcy(150);
+	MOVLW	0x96
+	CALL	_delay1ktcy
+;	.line	118; main.c	LATD = 0xFF;
+	MOVLW	0xff
+	MOVWF	_LATD
+;	.line	119; main.c	delay1ktcy(150);
+	MOVLW	0x96
+	CALL	_delay1ktcy
+;	.line	121; main.c	}
+	MOVFF	PREINC1, r0x01
+	MOVFF	PREINC1, r0x00
+	MOVFF	PREINC1, FSR2L
+	RETURN	
+
+; ; Starting pCode block
+S_main__rota2	code
+_rota2:
+;	.line	65; main.c	void rota2(void) {
+	MOVFF	FSR2L, POSTDEC1
+	MOVFF	FSR1L, FSR2L
+	MOVFF	r0x00, POSTDEC1
+	MOVFF	r0x01, POSTDEC1
+;	.line	66; main.c	LATD = 0x80;
+	MOVLW	0x80
+	MOVWF	_LATD
+_00189_DS_:
+;	.line	67; main.c	while (LATD != 0x01) {
+	MOVF	_LATD, W
+	XORLW	0x01
+	BZ	_00192_DS_
+;	.line	68; main.c	delay1ktcy(150);
+	MOVLW	0x96
+	CALL	_delay1ktcy
+;	.line	69; main.c	RRCF(LATD);
+	RRNCF	_LATD, W
+	ANDLW	0x7f
+	MOVWF	r0x00
+	RRNCF	_LATD, W
+	ANDLW	0x80
+	MOVWF	r0x01
+	MOVF	r0x01, W
+	IORWF	r0x00, W
+	MOVWF	_LATD
+	BRA	_00189_DS_
+_00192_DS_:
+;	.line	72; main.c	}
+	MOVFF	PREINC1, r0x01
+	MOVFF	PREINC1, r0x00
+	MOVFF	PREINC1, FSR2L
+	RETURN	
+
+; ; Starting pCode block
+S_main__rota1	code
+_rota1:
+;	.line	57; main.c	void rota1(void) {
+	MOVFF	FSR2L, POSTDEC1
+	MOVFF	FSR1L, FSR2L
+	MOVFF	r0x00, POSTDEC1
+	MOVFF	r0x01, POSTDEC1
+;	.line	58; main.c	LATD = 1;
+	MOVLW	0x01
+	MOVWF	_LATD
+_00166_DS_:
+;	.line	59; main.c	while (LATD != 0x80) {
+	MOVF	_LATD, W
+	XORLW	0x80
+	BZ	_00169_DS_
+;	.line	60; main.c	delay1ktcy(150);
+	MOVLW	0x96
+	CALL	_delay1ktcy
+;	.line	61; main.c	RLCF(LATD);
+	RLNCF	_LATD, W
+	ANDLW	0xfe
+	MOVWF	r0x00
+	RLNCF	_LATD, W
+	ANDLW	0x01
+	MOVWF	r0x01
+	MOVF	r0x01, W
+	IORWF	r0x00, W
+	MOVWF	_LATD
+	BRA	_00166_DS_
+_00169_DS_:
+;	.line	64; main.c	}
+	MOVFF	PREINC1, r0x01
+	MOVFF	PREINC1, r0x00
+	MOVFF	PREINC1, FSR2L
+	RETURN	
+
+
+
+; Statistics:
+; code size:	  608 (0x0260) bytes ( 0.46%)
+;           	  304 (0x0130) words
+; udata size:	    0 (0x0000) bytes ( 0.00%)
+; access size:	    2 (0x0002) bytes
+
+
+	end
--- a/c/rotac/main.c
+++ b/c/rotac/main.c
@ -0,0 +1,145 @@
+#include <pic18fregs.h>
+#include <delay.h>
+#include <stdint.h>
+
+/* Configs options */
+#pragma config XINST = OFF /* Extended instruction set */
+#pragma config FOSC = HS   /* Internal osc             */
+#pragma config WDT = OFF   /* Watchdog timer           */
+#pragma config LVP = OFF   /* Single Supply ICSP OFF   */
+#pragma config MCLRE = OFF
+
+#define RRCF(F) F = ((F >> 1) | (F << 7))
+#define RLCF(F) F = ((F << 1) | (F >> 7))
+
+void rota1(void);
+void rota2(void);
+void rota3(void);
+void rota4(void);
+void rota5(void);
+void main(void);
+
+void main(void) {
+    TRISD = 0;
+    LATD = 0;
+    TRISE = 0;
+    LATE = 0x04;
+    TRISB = 0xff;
+    //LATB = 0;
+
+    INTCON2bits.RBPU = 0;
+    ADCON1 = 0x0f;
+    uint8_t port = 0;
+
+    while (1) {
+        port = PORTB;
+        switch (port) {
+            case 0x01:
+                rota1();
+                break;
+            case 0x02:
+                rota2();
+                break;
+            case 0x04:
+                rota3();
+                break;
+            case 0x08:
+                rota4();
+                break;
+            case 0x10:
+                rota5();
+                break;
+        }
+        delay1ktcy(50); // 1s @ 1MHz
+    }
+}
+
+void rota1(void) {
+    LATD = 1;
+    while (LATD != 0x80) {
+        delay1ktcy(150);
+        RLCF(LATD);
+    }
+    return;
+}
+void rota2(void) {
+    LATD = 0x80;
+    while (LATD != 0x01) {
+        delay1ktcy(150);
+        RRCF(LATD);
+    }
+    return;
+}
+void rota3(void) {
+    LATD = 0x01;
+    while (LATD != 0x80) {
+        delay1ktcy(150);
+        RLCF(LATD);
+    }
+    LATD = 0x81;
+    while (LATD != 0xC0) {
+        delay1ktcy(150);
+        LATD = LATD << 1;
+        LATD |= 0x80;
+    }
+    LATD = 0xC1;
+    while (LATD != 0xE0) {
+        delay1ktcy(150);
+        LATD = LATD << 1;
+        LATD |= 0xC0;
+    }
+    LATD = 0xE1;
+    while (LATD != 0xF0) {
+        delay1ktcy(150);
+        LATD = LATD << 1;
+        LATD |= 0xE0;
+    }
+    LATD = 0xF1;
+    while (LATD != 0xF8) {
+        delay1ktcy(150);
+        LATD = LATD << 1;
+        LATD |= 0xF0;
+    }
+    LATD = 0xF9;
+    while (LATD != 0xFC) {
+        delay1ktcy(150);
+        LATD = LATD << 1;
+        LATD |= 0xF8;
+    }
+    LATD = 0xFD;
+    while (LATD != 0xFE) {
+        delay1ktcy(150);
+        LATD = LATD << 1;
+        LATD |= 0xFC;
+    }
+    delay1ktcy(150);
+    LATD = 0xFE;
+    delay1ktcy(150);
+    LATD = 0xFF;
+    delay1ktcy(150);
+    return;
+}
+void rota4(void) {
+    LATD = 1;
+    while (LATD != 0x80) {
+        delay1ktcy(150);
+        RLCF(LATD);
+    }
+    LATD = 0x80;
+    while (LATD != 0x01) {
+        delay1ktcy(150);
+        RRCF(LATD);
+    }
+}
+void rota5(void) {
+    LATD = 0x55;
+    delay1ktcy(150);
+    LATD = 0xAA;
+    delay1ktcy(150);
+}
+
+/* NOTES
+ * Looks like I can treat register like normal variables
+ * Use PORT instead of LAT for reading
+ * != doesnt work
+ */
--- a/c/rotac/main.hex
+++ b/c/rotac/main.hex
@ -0,0 +1,60 @@
+:020000040000FA
+:100000007DEF00F0D9CFE5FFE1CFD9FF00C0E5FFDC
+:1000100001C0E5FF010E8C6E8C50800A0DE0960E3B
+:1000200076EC01F08C44FE0B006E8C44010B016EEB
+:10003000015000108C6EF0D7810E8C6E8C50C00A6F
+:1000400007E0960E76EC01F0D8908C368C8EF6D7C1
+:10005000C10E8C6E8C50E00A08E0960E76EC01F032
+:10006000D8908C36C00E8C12F5D7E10E8C6E8C5069
+:10007000F00A08E0960E76EC01F0D8908C36E00E8F
+:100080008C12F5D7F10E8C6E8C50F80A08E0960EA3
+:1000900076EC01F0D8908C36F00E8C12F5D7F90E74
+:1000A0008C6E8C50FC0A08E0960E76EC01F0D8902D
+:1000B0008C36F80E8C12F5D7FD0E8C6E8C50FE0A25
+:1000C00008E0960E76EC01F0D8908C36FC0E8C127F
+:1000D000F5D7960E76EC01F0FE0E8C6E960E76EC51
+:1000E00001F0FF0E8C6E960E76EC01F0E4CF01F07D
+:1000F000E4CF00F0E4CFD9FF120011EEFFF021EEC3
+:10010000FFF0F86AA68EA69C07EEFFF00068ED6A85
+:100110000050FDE14C0EF66E030EF76E000EF86E09
+:100120000900F5CF05F00900F5CF06F034D009003D
+:10013000F5CF00F00900F5CF01F00900F5CF02F08E
+:1001400009000900F5CFE9FF0900F5CFEAFF090032
+:1001500009000900F5CF03F00900F5CF04F009000C
+:100160000900F6CF07F0F7CF08F0F8CF09F000C08C
+:10017000F6FF01C0F7FF02C0F8FF03D00900F5CF7A
+:10018000EEFF0306FBE20406F9E207C0F6FF08C033
+:10019000F7FF09C0F8FF0506CAE20606C8E205EC4B
+:1001A00001F0FFD7D9CFE5FFE1CFD9FF00C0E5FFD0
+:1001B00001C0E5FF010E8C6E8C50800A0DE0960E9A
+:1001C00076EC01F08C44FE0B006E8C44010B016E4A
+:1001D000015000108C6EF0D7800E8C6E8C50010A8E
+:1001E0000DE0960E76EC01F08C407F0B006E8C409B
+:1001F000800B016E015000108C6EF0D7E4CF01F03F
+:10020000E4CF00F0E4CFD9FF1200956A8C6A966AB9
+:10021000040E8D6EFF0E936EF19E0F0EC16E81CF98
+:1002200000F00050010A0DE00050020A0DE00050FD
+:10023000040A0DE00050080A0DE00050100A0DE01D
+:100240000ED055EC01F00BD034EC01F008D002ECEC
+:1002500000F005D0D2EC00F002D095EC01F0320EA7
+:1002600076EC01F0DCD71200D9CFE5FFE1CFD9FF62
+:1002700000C0E5FF01C0E5FF800E8C6E8C50010AC6
+:100280000DE0960E76EC01F08C407F0B006E8C40FA
+:10029000800B016E015000108C6EF0D7E4CF01F09E
+:1002A000E4CF00F0E4CFD9FF1200D9CFE5FFE1CFD2
+:1002B000D9FF00C0E5FF01C0E5FF010E8C6E8C5038
+:1002C000800A0DE0960E76EC01F08C44FE0B006E79
+:1002D0008C44010B016E015000108C6EF0D7E4CFFE
+:1002E00001F0E4CF00F0E4CFD9FF1200E806E56E9C
+:1002F000630E89EC01F0E4500BE000D0E56E630E74
+:1003000089EC01F000D000D00000E450E82EF6D7D0
+:100310001200E8060000E85007E000D000D000D04E
+:1003200000D00000E82EFAD71200D9CFE5FFE1CFC8
+:10033000D9FF550E8C6E960E76EC01F0AA0E8C6EDF
+:10034000960E76EC01F0E4CFD9FF120001005A03BB
+:0C03500000006000000001000000000040
+:020000040030CA
+:010001000CF2
+:010003001EDE
+:02000500038175
+:00000001FF
--- a/c/rotac/main.o
+++ b/c/rotac/main.o
--- a/c/test/Makefile
+++ b/c/test/Makefile
@ -0,0 +1,32 @@
+# My pic workflow makefile by Fernando R Jacobo
+# Dependencies
+# SDCC Small Device C Compiler
+# pk2cmd for pickit pic programmers
+
+# C compiler variables
+SRC=*.c
+CC=sdcc
+FAMILY=pic16
+PROC=18f4550
+
+# ASM and program variables
+PPROC=PIC18F4550
+ASMPROC=18F4550
+
+all: $(SRC:.c=.hex)
+
+comp: $(SRC)
+	$(CC) --use-non-free -m$(FAMILY) -p$(PROC) $^
+
+clean:
+	rm -f $(SRC:.c=.asm) $(SRC:.c=.cod) $(SRC:.c=.hex) $(SRC:.c=.lst) $(SRC:.c=.o)
+
+program:
+	pk2cmd -M -P${PPROC} -Fmain.hex
+
+asm: *.asm
+	gpasm -p ${ASMPROC} -o main.hex $^
+
+asmp: asm program
+
+.PHONY: all clean
--- a/c/test/main.c
+++ b/c/test/main.c
@ -0,0 +1,31 @@
+#include <pic18f4550.h>
+#include <stdint.h>
+
+// Use this to define the interrupt vector for high-priority interrupts
+void interrupt high_priority isr(void) {
+    // Check if it's a PORTB change interrupt
+    if (INTCON.RBIF) {
+        // Handle the change here
+        // Example: toggle a pin, read input, etc.
+
+        // Clear the interrupt flag
+        INTCON.RBIF = 0;
+    }
+}
+
+void main(void) {
+    // Set PORTB pins RB4-RB7 as input
+    TRISB |= 0xF0; // Set RB4-RB7 as input (1)
+
+    // Enable PORTB change interrupt
+    INTCON.RBIE = 1;  // Enable PORTB change interrupt
+    INTCON.RBIF = 0;  // Clear PORTB interrupt flag
+    INTCON.GIE = 1;   // Enable global interrupts
+    INTCON.PEIE = 1;  // Enable peripheral interrupts (recommended)
+
+    // Main loop
+    while (1) {
+        // Your main code here (e.g., sleep, check flags, etc.)
+    }
+}
+
--- a/eventc/Makefile
+++ b/eventc/Makefile
@ -0,0 +1,32 @@
+# My pic workflow makefile by Fernando R Jacobo
+# Dependencies
+# SDCC Small Device C Compiler
+# pk2cmd for pickit pic programmers
+
+# C compiler variables
+SRC=*.c
+CC=sdcc
+FAMILY=pic16
+PROC=18f4550
+
+# ASM and program variables
+PPROC=PIC18F4550
+ASMPROC=18F4550
+
+all: $(SRC:.c=.hex)
+
+comp: $(SRC)
+	$(CC) --use-non-free -m$(FAMILY) -p$(PROC) $^
+
+clean:
+	rm -f $(SRC:.c=.asm) $(SRC:.c=.cod) $(SRC:.c=.hex) $(SRC:.c=.lst) $(SRC:.c=.o)
+
+program:
+	pk2cmd -M -P${PPROC} -X -Fmain.hex
+
+asm: *.asm
+	gpasm -p ${ASMPROC} -o main.hex $^
+
+asmp: asm program
+
+.PHONY: all clean
--- a/eventc/main.asm
+++ b/eventc/main.asm
@ -0,0 +1,210 @@
+LIST P=18F4550
+#include <p18f4550.inc>
+
+CONFIG FOSC = HS ; Use internal oscillator, RA6 as clock output
+CONFIG WDT = OFF          ; Watchdog Timer off
+CONFIG LVP = OFF          ; Low-Voltage Programming off
+CONFIG MCLRE = ON        ; MCLR pin disabled, RE3 input enabled
+
+;mem
+R1 EQU 0x020
+R2 EQU 0x021
+R3 EQU 0x024
+R4 EQU 0x026
+R5 EQU 0x027
+TEMP EQU 0x23
+CUENTA EQU 0x022
+CUENTA2 EQU 0x034
+DISP0 EQU 0x30
+DISP1 EQU 0x31
+DISP2 EQU 0x32
+DISP3 EQU 0x33
+
+    ORG 0x00
+    GOTO INIT
+
+    ORG 0x08   ; Interrupt vector for high-priority interrupts
+    goto ISR   ; Jump to Interrupt Service Routine
+
+INIT:
+    ; === Configure RB4-RB7 as Input ===
+    movlw 0xff
+    movwf TRISB
+    clrf TRISD
+    clrf LATD
+
+    movlw 0x0f
+    movwf ADCON1
+
+    clrf CUENTA
+    clrf CUENTA2
+
+    clrf TRISE
+    clrf LATE
+    clrf TRISA
+    clrf LATA
+
+    ; === Enable RB Port Change Interrupt ===
+    BSF RCON, IPEN
+    BCF INTCON2, RBPU  ; Enable PORTB pull-ups
+    BSF INTCON2, 0     ; Set interrupt on high priority RBIP
+    ;BSF INTCON, RBIE   ; Enable RB Port Change Interrupt
+    BSF INTCON, GIE    ; Enable Global Interrupts
+    BSF INTCON, PEIE   ; Enable Peripheral Interrupts
+    ; INT0
+    BSF INTCON, INT0IE
+    BCF INTCON2, INTEDG0
+    ;BSF INTCON, INT1IE
+    ;BSF INTCON2, INTEDG1
+
+    movlw 0x00
+    movwf CUENTA
+    call splitDigit
+
+MAIN_LOOP:
+    ;MOVFF PORTB, PORTD
+    call Delay
+    GOTO MAIN_LOOP     ; Stay in loop, wait for interrupts
+
+; === Interrupt Service Routine ===
+ISR:
+    ;BTFSS INTCON, RBIF  ; Check if RB Change interrupt occurred
+    ;RETFIE; Return if not triggered
+    BTFSS INTCON, INT0IF
+    RETFIE
+    MOVF PORTB, W       ; Read PORTB (necessary to clear mismatch condition)
+    ; Interrupt code
+    incf CUENTA, W
+    daw
+    movwf CUENTA
+    call splitDigit
+    call SDelay
+
+    ;BCF INTCON, RBIF    ; Clear the RBIF flag
+    BCF INTCON, INT0IF
+    ;BCF INTCON, INT1IF
+    RETFIE; Return from interrupt
+
+splitDigit:
+    movf CUENTA, W
+    andlw 0x0f
+    movwf DISP0
+    swapf CUENTA, W
+    andlw 0x0f
+    movwf DISP1
+    movf CUENTA2, W
+    andlw 0x0f
+    movwf DISP2
+    swapf CUENTA2, W
+    andlw 0x0f
+    movwf DISP3
+    return
+
+disp_delay:
+    movlw D'250'
+    movwf R3
+disp_delay_inner:
+    NOP
+    NOP
+    NOP
+    NOP
+    decfsz R3, F
+    goto disp_delay_inner
+    return
+
+sevensw:
+    movlw high(sevenjmp)
+    movwf PCLATH
+    movf TEMP, W
+    addwf TEMP, W
+    addlw low(sevenjmp)
+    btfsc STATUS, 0
+    incf PCLATH, 1
+    movwf PCL
+sevenjmp:
+    retlw 3Fh
+    retlw 06h
+    retlw 5Bh
+    retlw 4Fh
+    retlw 66h
+    retlw 6Dh
+    retlw 7Dh
+    retlw 07h ; siete
+    retlw 7Fh ; ocho
+    retlw 6Fh ; nueve
+    retlw 77h ; A
+    retlw 7Ch ; B
+    retlw 39h ; C
+    retlw 5Eh ; D
+    retlw 79h ; E
+    retlw 71h ; F
+
+Delay:
+    MOVLW D'250'             ; Outer loop count
+    MOVWF R1
+Delay_Outer:
+    MOVLW D'250'             ; Inner loop count
+    MOVWF R2
+Delay_Inner:
+    NOP                      ; Do nothing (No Operation)
+    NOP
+    DECFSZ R2, F             ; Decrement inner loop counter
+    GOTO Delay_Inner         ; Repeat inner loop
+    call display
+    DECFSZ R1, F             ; Decrement outer loop counter
+    GOTO Delay_Outer         ; Repeat outer loop
+    RETURN                   ; Return from delay
+
+SDelay:
+    MOVLW D'150'             ; Outer loop count
+    MOVWF R4                
+SDelay_Outer:
+    MOVLW D'250'             ; Inner loop count
+    MOVWF R5                
+SDelay_Inner:
+    NOP                      ; Do nothing (No Operation)
+    NOP
+    DECFSZ R5, F             ; Decrement inner loop counter
+    GOTO SDelay_Inner         ; Repeat inner loop
+    call display
+    DECFSZ R4, F             ; Decrement outer loop counter
+    GOTO SDelay_Outer         ; Repeat outer loop
+    RETURN                   ; Return from delay
+
+display:
+    clrf PORTD
+    movff DISP0, TEMP
+    call sevensw
+    movwf PORTD
+    movlw 0x04
+    movwf PORTE
+    call disp_delay
+
+    clrf PORTD
+    movff DISP1, TEMP
+    call sevensw
+    movwf PORTD
+    movlw 0x02
+    movwf PORTE
+    call disp_delay
+
+    clrf PORTD
+    movff DISP2, TEMP
+    call sevensw
+    movwf PORTD
+    movlw 0x01
+    movwf PORTE
+    call disp_delay
+
+    clrf PORTD
+    clrf PORTE
+    movff DISP3, TEMP
+    call sevensw
+    movwf PORTD
+    movlw 0x10
+    movwf PORTA
+    call disp_delay
+    clrf PORTA
+    return
+
+    END
--- a/eventc/main.hex
+++ b/eventc/main.hex
@ -0,0 +1,28 @@
+:020000040000FA
+:0400000006EF00F017
+:0800080021EF00F0FF0E936EE2
+:10001000956A8C6A0F0EC16E226A346A966A8D6A7E
+:10002000926A896AD08EF19EF180F28EF28CF2880B
+:10003000F19C000E226E2DEC00F05CEC00F01DEF48
+:1000400000F0F2A21000815022280700226E2DEC51
+:1000500000F06BEC00F0F292100022500F0B306EAB
+:1000600022380F0B316E34500F0B326E34380F0BB9
+:10007000336E1200FA0E246E000000000000000033
+:10008000242E3CEF00F01200000EFA6E23502324C1
+:10009000980FD8B0FA2AF96E3F0C060C5B0C4F0C87
+:1000A000660C6D0C7D0C070C7F0C6F0C770C7C0CB8
+:1000B000390C5E0C790C710CFA0E206EFA0E216E62
+:1000C00000000000212E60EF00F07AEC00F0202EFE
+:1000D0005EEF00F01200960E266EFA0E276E0000FC
+:1000E0000000272E6FEF00F07AEC00F0262E6DEF67
+:1000F00000F01200836A30C023F044EC00F0836EFD
+:10010000040E846E3AEC00F0836A31C023F044ECB4
+:1001100000F0836E020E846E3AEC00F0836A32C007
+:1001200023F044EC00F0836E010E846E3AEC00F094
+:10013000836A846A33C023F044EC00F0836E100EAF
+:0A014000806E3AEC00F0806A1200B5
+:020000040030CA
+:04000000000C1F1EB3
+:020005008381F5
+:060008000FC00FE00F40E5
+:00000001FF
--- a/keypad/Makefile
+++ b/keypad/Makefile
@ -0,0 +1,32 @@
+# My pic workflow makefile by Fernando R Jacobo
+# Dependencies
+# SDCC Small Device C Compiler
+# pk2cmd for pickit pic programmers
+
+# C compiler variables
+SRC=*.c
+CC=sdcc
+FAMILY=pic16
+PROC=18f4550
+
+# ASM and program variables
+PPROC=PIC18F4550
+ASMPROC=18F4550
+
+all: $(SRC:.c=.hex)
+
+comp: $(SRC)
+	$(CC) --use-non-free -m$(FAMILY) -p$(PROC) $^
+
+clean:
+	rm -f $(SRC:.c=.asm) $(SRC:.c=.cod) $(SRC:.c=.hex) $(SRC:.c=.lst) $(SRC:.c=.o)
+
+program:
+	pk2cmd -M -P${PPROC} -Fmain.hex
+
+asm: *.asm
+	gpasm -p ${ASMPROC} -o main.hex $^
+
+asmp: asm program
+
+.PHONY: all clean
--- a/keypad/main.asm
+++ b/keypad/main.asm
@ -0,0 +1,201 @@
+    LIST P=18F4550
+    #include <p18f4550.inc>
+
+    CONFIG FOSC = HS ; Use internal oscillator, RA6 as clock output
+    CONFIG WDT = OFF          ; Watchdog Timer off
+    CONFIG LVP = OFF          ; Low-Voltage Programming off
+    CONFIG MCLRE = OFF        ; MCLR pin disabled, RE3 input enabled
+
+; Definitions
+R3 EQU 0x024
+R4 EQU 0x025
+R5 EQU 0x026
+TEMP EQU 0x038
+COL EQU 0x039
+READ EQU 0x03A
+SHIFT EQU 0x03B
+
+    ORG 0x00
+    GOTO INIT
+
+    ORG 0x08
+    GOTO ISR
+
+INIT:
+    CLRF LATB
+    movlw 0xf0    ; PORTB setup
+    MOVWF TRISB
+
+    movlw 0x0f
+    movwf ADCON1
+
+    clrf TRISD    ; Set port D as output
+    clrf LATD
+    CLRF TRISE
+    CLRF LATE
+
+    BSF PORTE, 2
+    CLRF TEMP
+    CLRF COL
+    CLRF SHIFT
+    CLRF READ
+
+    ;    Configure interrupts
+    BSF RCON, IPEN     ;
+    BSF INTCON, GIE    ; Enable Global Interrupts
+    BSF INTCON, PEIE   ; Enable Peripheral Interrupts
+    BSF INTCON, RBIE   ; Enable RB Port Change Interrupt
+    BCF INTCON2, RBPU  ; Enable PORTB pull-ups
+    BSF INTCON2, RBIP  ; Set interrupt on high priority RBIP
+
+LOOP:
+    MOVLW 0x0E
+    MOVWF SHIFT
+    MOVWF PORTB
+
+    CALL disp_delay
+    MOVLW 0x0D
+    MOVWF SHIFT
+    MOVWF PORTB
+
+    CALL disp_delay
+    MOVLW 0x0B
+    MOVWF SHIFT
+    MOVWF PORTB
+
+    CALL disp_delay
+    MOVLW 0x07
+    MOVWF SHIFT
+    MOVWF PORTB
+    
+    CALL disp_delay
+    GOTO LOOP
+
+ISR:
+    BTFSS INTCON, RBIF
+    RETFIE
+
+    MOVF PORTB, W
+    NOP
+    ANDLW 0xf0
+    MOVWF COL
+    SWAPF COL
+    SUBLW 0xf0
+    BTFSC STATUS, Z
+    GOTO ret
+    CALL decode
+    MOVWF TEMP
+    CALL sevensw
+    MOVWF PORTD
+    CALL SDelay
+    CALL SDelay
+    CALL SDelay
+    CALL SDelay
+    CALL SDelay
+ret:    
+    BCF INTCON, RBIF
+    RETFIE
+
+
+decode:
+    BTFSC SHIFT, 0 ; Check if row 1 is active
+    GOTO col1
+    BTFSS COL, 0   ; Check every column
+    RETLW 0x01
+    BTFSS COL, 1
+    RETLW 0x02
+    BTFSS COL, 2
+    RETLW 0x03
+    BTFSS COL, 3
+    RETLW 0x0A
+col1:
+    BTFSC SHIFT, 1
+    GOTO col2
+    BTFSS COL, 0   ; Check every column
+    RETLW 0x04
+    BTFSS COL, 1
+    RETLW 0x05
+    BTFSS COL, 2
+    RETLW 0x06
+    BTFSS COL, 3
+    RETLW 0x0B
+col2:
+    BTFSC SHIFT, 2
+    GOTO col3
+    BTFSS COL, 0   ; Check every column
+    RETLW 0x07
+    BTFSS COL, 1
+    RETLW 0x08
+    BTFSS COL, 2
+    RETLW 0x09
+    BTFSS COL, 3
+    RETLW 0x0C
+col3
+    BTFSC SHIFT, 3
+    RETLW 0x00
+    BTFSS COL, 0   ; Check every column
+    RETLW 0x00
+    BTFSS COL, 1
+    RETLW 0x00
+    BTFSS COL, 2
+    RETLW 0x00
+    BTFSS COL, 3
+    RETLW 0x0D
+    RETLW 0x00
+
+
+SDelay:
+    MOVLW D'250'
+    MOVWF R4                
+SDelay_Outer:
+    MOVLW D'250'
+    MOVWF R5                
+SDelay_Inner:
+    NOP
+    NOP
+    DECFSZ R5, F             ; Decrement inner loop counter
+    GOTO SDelay_Inner         ; Repeat inner loop
+    DECFSZ R4, F             ; Decrement outer loop counter
+    GOTO SDelay_Outer         ; Repeat outer loop
+    RETURN                   ; Return from delay
+
+disp_delay:
+    movlw D'250'
+    movwf R3
+disp_delay_inner:
+    NOP
+    NOP
+    NOP
+    NOP
+    decfsz R3, F
+    goto disp_delay_inner
+    return
+
+sevensw:
+    movlw high(sevenjmp)
+    movwf PCLATH
+    movf TEMP, W
+    addwf TEMP, W
+    addlw low(sevenjmp)
+    btfsc STATUS, 0
+    incf PCLATH, 1
+    movwf PCL
+sevenjmp:
+    retlw 3Fh
+    retlw 06h
+    retlw 5Bh
+    retlw 4Fh
+    retlw 66h
+    retlw 6Dh
+    retlw 7Dh
+    retlw 07h ; siete
+    retlw 7Fh ; ocho
+    retlw 6Fh ; nueve
+    retlw 77h ; A
+    retlw 7Ch ; B
+    retlw 39h ; C
+    retlw 5Eh ; D
+    retlw 79h ; E
+    retlw 71h ; F
+
+    END
--- a/keypad/main.hex
+++ b/keypad/main.hex
@ -0,0 +1,28 @@
+:020000040000FA
+:0400000006EF00F017
+:0800080030EF00F08A6AF00EEF
+:10001000936E0F0EC16E956A8C6A966A8D6A84849F
+:10002000386A396A3B6A3A6AD08EF28EF28CF2866E
+:10003000F19EF1800E0E3B6E816E86EC00F00D0E8F
+:100040003B6E816E86EC00F00B0E3B6E816E86EC93
+:1000500000F0070E3B6E816E86EC00F01AEF00F0A8
+:10006000F2A0100081500000F00B396E393AF00810
+:10007000D8B44BEF00F04DEC00F0386E90EC00F08F
+:10008000836E79EC00F079EC00F079EC00F079EC1B
+:1000900000F079EC00F0F29010003BB058EF00F067
+:1000A00039A0010C39A2020C39A4030C39A60A0CA0
+:1000B0003BB263EF00F039A0040C39A2050C39A45F
+:1000C000060C39A60B0C3BB46EEF00F039A0070C00
+:1000D00039A2080C39A4090C39A60C0C3BB6000C4B
+:1000E00039A0000C39A2000C39A4000C39A60D0C63
+:1000F000000CFA0E256EFA0E266E00000000262E69
+:100100007DEF00F0252E7BEF00F01200FA0E246E3A
+:100110000000000000000000242E88EF00F0120014
+:10012000010EFA6E38503824300FD8B0FA2AF96E22
+:100130003F0C060C5B0C4F0C660C6D0C7D0C070C19
+:100140007F0C6F0C770C7C0C390C5E0C790C710CED
+:020000040030CA
+:04000000000C1F1EB3
+:02000500038175
+:060008000FC00FE00F40E5
+:00000001FF
--- a/keypad/main.sync-conflict-20250319-154528-N4N5JQ7.asm
+++ b/keypad/main.sync-conflict-20250319-154528-N4N5JQ7.asm
@ -0,0 +1,200 @@
+    LIST P=18F4550
+    #include <p18f4550.inc>
+
+    CONFIG FOSC = HS ; Use internal oscillator, RA6 as clock output
+    CONFIG WDT = OFF          ; Watchdog Timer off
+    CONFIG LVP = OFF          ; Low-Voltage Programming off
+    CONFIG MCLRE = OFF        ; MCLR pin disabled, RE3 input enabled
+
+; Definitions
+R3 EQU 0x024
+R4 EQU 0x025
+R5 EQU 0x026
+TEMP EQU 0x038
+COL EQU 0x039
+READ EQU 0x03A
+SHIFT EQU 0x03B
+
+    ORG 0x00
+    GOTO INIT
+
+    ORG 0x08
+    GOTO ISR
+
+INIT:
+    CLRF LATB
+    movlw 0xf0    ; PORTB setup
+    MOVWF TRISB
+
+    movlw 0x0f
+    movwf ADCON1
+
+    clrf TRISD    ; Set port D as output
+    clrf LATD
+    CLRF TRISE
+    CLRF LATE
+
+    BSF PORTE, 2
+    CLRF TEMP
+    CLRF COL
+    CLRF SHIFT
+    CLRF READ
+
+    ;    Configure interrupts
+    BSF RCON, IPEN
+    BSF INTCON, GIE    ; Enable Global Interrupts
+    BSF INTCON, PEIE   ; Enable Peripheral Interrupts
+    BSF INTCON, RBIE   ; Enable RB Port Change Interrupt
+    BCF INTCON2, RBPU  ; Enable PORTB pull-ups
+    BSF INTCON2, RBIP  ; Set interrupt on high priority RBIP
+
+LOOP:
+    MOVLW 0x0E
+    MOVWF SHIFT
+    MOVWF PORTB
+
+    CALL disp_delay
+    MOVLW 0x0D
+    MOVWF SHIFT
+    MOVWF PORTB
+
+    CALL disp_delay
+    MOVLW 0x0B
+    MOVWF SHIFT
+    MOVWF PORTB
+
+    CALL disp_delay
+    MOVLW 0x07
+    MOVWF SHIFT
+    MOVWF PORTB
+    
+    CALL disp_delay
+    GOTO LOOP
+
+ISR:
+    BTFSS INTCON, RBIF
+    RETFIE
+
+    MOVF PORTB, W
+    NOP
+    ANDLW 0xf0
+    MOVWF COL
+    SWAPF COL
+    CPFSEQ READ
+    CALL decode
+    MOVWF TEMP
+    CALL sevensw
+    MOVWF PORTD
+    CALL SDelay
+    CALL SDelay
+    CALL SDelay
+    CALL SDelay
+    CALL SDelay
+    
+    BCF INTCON, RBIF
+    RETFIE
+
+display:
+
+decode:
+    BTFSC SHIFT, 0 ; Check if row 1 is active
+    GOTO col1
+    BTFSS COL, 0   ; Check every column
+    RETLW 0x01
+    BTFSS COL, 1
+    RETLW 0x02
+    BTFSS COL, 2
+    RETLW 0x03
+    BTFSS COL, 3
+    RETLW 0x0A
+col1:
+    BTFSC SHIFT, 1
+    GOTO col2
+    BTFSS COL, 0   ; Check every column
+    RETLW 0x04
+    BTFSS COL, 1
+    RETLW 0x05
+    BTFSS COL, 2
+    RETLW 0x06
+    BTFSS COL, 3
+    RETLW 0x0B
+col2:
+    BTFSC SHIFT, 2
+    GOTO col3
+    BTFSS COL, 0   ; Check every column
+    RETLW 0x07
+    BTFSS COL, 1
+    RETLW 0x08
+    BTFSS COL, 2
+    RETLW 0x09
+    BTFSS COL, 3
+    RETLW 0x0C
+col3
+    BTFSC SHIFT, 3
+    RETLW 0x00
+    BTFSS COL, 0   ; Check every column
+    RETLW 0x00
+    BTFSS COL, 1
+    RETLW 0x00
+    BTFSS COL, 2
+    RETLW 0x00
+    BTFSS COL, 3
+    RETLW 0x0D
+    RETLW 0x00
+
+
+SDelay:
+    MOVLW D'250'
+    MOVWF R4                
+SDelay_Outer:
+    MOVLW D'250'
+    MOVWF R5                
+SDelay_Inner:
+    NOP
+    NOP
+    DECFSZ R5, F             ; Decrement inner loop counter
+    GOTO SDelay_Inner         ; Repeat inner loop
+    DECFSZ R4, F             ; Decrement outer loop counter
+    GOTO SDelay_Outer         ; Repeat outer loop
+    RETURN                   ; Return from delay
+
+disp_delay:
+    movlw D'250'
+    movwf R3
+disp_delay_inner:
+    NOP
+    NOP
+    NOP
+    NOP
+    decfsz R3, F
+    goto disp_delay_inner
+    return
+
+sevensw:
+    movlw high(sevenjmp)
+    movwf PCLATH
+    movf TEMP, W
+    addwf TEMP, W
+    addlw low(sevenjmp)
+    btfsc STATUS, 0
+    incf PCLATH, 1
+    movwf PCL
+sevenjmp:
+    retlw 3Fh
+    retlw 06h
+    retlw 5Bh
+    retlw 4Fh
+    retlw 66h
+    retlw 6Dh
+    retlw 7Dh
+    retlw 07h ; siete
+    retlw 7Fh ; ocho
+    retlw 6Fh ; nueve
+    retlw 77h ; A
+    retlw 7Ch ; B
+    retlw 39h ; C
+    retlw 5Eh ; D
+    retlw 79h ; E
+    retlw 71h ; F
+
+    END
--- a/keypad/main.sync-conflict-20250319-154528-N4N5JQ7.hex
+++ b/keypad/main.sync-conflict-20250319-154528-N4N5JQ7.hex
@ -0,0 +1,28 @@
+:020000040000FA
+:0400000006EF00F017
+:0800080030EF00F08A6AF00EEF
+:10001000936E0F0EC16E956A8C6A966A8D6A84849F
+:10002000386A396A3B6A3A6AD08EF28EF28CF2866E
+:10003000F19EF1800E0E3B6E816E83EC00F00D0E92
+:100040003B6E816E83EC00F00B0E3B6E816E83EC99
+:1000500000F0070E3B6E816E83EC00F01AEF00F0AB
+:10006000F2A0100081500000F00B396E393A3A626C
+:100070004AEC00F0386E8DEC00F0836E76EC00F008
+:1000800076EC00F076EC00F076EC00F076EC00F028
+:10009000F29010003BB055EF00F039A0010C39A2EE
+:1000A000020C39A4030C39A60A0C3BB260EF00F035
+:1000B00039A0040C39A2050C39A4060C39A60B0C86
+:1000C0003BB46BEF00F039A0070C39A2080C39A43F
+:1000D000090C39A60C0C3BB6000C39A0000C39A257
+:1000E000000C39A4000C39A60D0C000CFA0E256E7C
+:1000F000FA0E266E00000000262E7AEF00F0252E64
+:1001000078EF00F01200FA0E246E000000000000EC
+:100110000000242E85EF00F01200010EFA6E385018
+:1001200038242A0FD8B0FA2AF96E3F0C060C5B0C63
+:100130004F0C660C6D0C7D0C070C7F0C6F0C770C54
+:0A0140007C0C390C5E0C790C710C7C
+:020000040030CA
+:04000000000C1F1EB3
+:02000500038175
+:060008000FC00FE00F40E5
+:00000001FF
--- a/keypad/main.sync-conflict-20250319-155715-N4N5JQ7.asm
+++ b/keypad/main.sync-conflict-20250319-155715-N4N5JQ7.asm
@ -0,0 +1,200 @@
+    LIST P=18F4550
+    #include <p18f4550.inc>
+
+    CONFIG FOSC = HS ; Use internal oscillator, RA6 as clock output
+    CONFIG WDT = OFF          ; Watchdog Timer off
+    CONFIG LVP = OFF          ; Low-Voltage Programming off
+    CONFIG MCLRE = OFF        ; MCLR pin disabled, RE3 input enabled
+
+; Definitions
+R3 EQU 0x024
+R4 EQU 0x025
+R5 EQU 0x026
+TEMP EQU 0x038
+COL EQU 0x039
+READ EQU 0x03A
+SHIFT EQU 0x03B
+
+    ORG 0x00
+    GOTO INIT
+
+    ORG 0x08
+    GOTO ISR
+
+INIT:
+    CLRF LATB
+    movlw 0xf0    ; PORTB setup
+    MOVWF TRISB
+
+    movlw 0x0f
+    movwf ADCON1
+
+    clrf TRISD    ; Set port D as output
+    clrf LATD
+    CLRF TRISE
+    CLRF LATE
+
+    BSF PORTE, 2
+    CLRF TEMP
+    CLRF COL
+    CLRF SHIFT
+    CLRF READ
+
+    ;    Configure interrupts
+    BSF RCON, IPEN
+    BSF INTCON, GIE    ; Enable Global Interrupts
+    BSF INTCON, PEIE   ; Enable Peripheral Interrupts
+    BSF INTCON, RBIE   ; Enable RB Port Change Interrupt
+    BCF INTCON2, RBPU  ; Enable PORTB pull-ups
+    BSF INTCON2, RBIP  ; Set interrupt on high priority RBIP
+
+LOOP:
+    MOVLW 0x0E
+    MOVWF SHIFT
+    MOVWF PORTB
+
+    CALL disp_delay
+    MOVLW 0x0D
+    MOVWF SHIFT
+    MOVWF PORTB
+
+    CALL disp_delay
+    MOVLW 0x0B
+    MOVWF SHIFT
+    MOVWF PORTB
+
+    CALL disp_delay
+    MOVLW 0x07
+    MOVWF SHIFT
+    MOVWF PORTB
+    
+    CALL disp_delay
+    GOTO LOOP
+
+ISR:
+    BTFSS INTCON, RBIF
+    RETFIE
+
+    MOVF PORTB, W
+    NOP
+    ANDLW 0xf0
+    MOVWF COL
+    SWAPF COL
+    CPFSEQ READ
+    CALL decode
+    MOVWF TEMP
+    CALL sevensw
+    MOVWF PORTD
+    CALL SDelay
+    CALL SDelay
+    CALL SDelay
+    CALL SDelay
+    CALL SDelay
+    
+    BCF INTCON, RBIF
+    RETFIE
+
+display:
+
+decode:
+    BTFSC SHIFT, 0 ; Check if row 1 is active
+    GOTO col1
+    BTFSS COL, 0   ; Check every column
+    RETLW 0x01
+    BTFSS COL, 1
+    RETLW 0x02
+    BTFSS COL, 2
+    RETLW 0x03
+    BTFSS COL, 3
+    RETLW 0x0A
+col1:
+    BTFSC SHIFT, 1
+    GOTO col2
+    BTFSS COL, 0   ; Check every column
+    RETLW 0x04
+    BTFSS COL, 1
+    RETLW 0x05
+    BTFSS COL, 2
+    RETLW 0x06
+    BTFSS COL, 3
+    RETLW 0x0B
+col2:
+    BTFSC SHIFT, 2
+    GOTO col3
+    BTFSS COL, 0   ; Check every column
+    RETLW 0x07
+    BTFSS COL, 1
+    RETLW 0x08
+    BTFSS COL, 2
+    RETLW 0x09
+    BTFSS COL, 3
+    RETLW 0x0C
+col3
+    BTFSC SHIFT, 3
+    RETLW 0x00
+    BTFSS COL, 0   ; Check every column
+    RETLW 0x00
+    BTFSS COL, 1
+    RETLW 0x00
+    BTFSS COL, 2
+    RETLW 0x00
+    BTFSS COL, 3
+    RETLW 0x0D
+    RETLW 0x00
+
+
+SDelay:
+    MOVLW D'250'
+    MOVWF R4                
+SDelay_Outer:
+    MOVLW D'250'
+    MOVWF R5                
+SDelay_Inner:
+    NOP
+    NOP
+    DECFSZ R5, F             ; Decrement inner loop counter
+    GOTO SDelay_Inner         ; Repeat inner loop
+    DECFSZ R4, F             ; Decrement outer loop counter
+    GOTO SDelay_Outer         ; Repeat outer loop
+    RETURN                   ; Return from delay
+
+disp_delay:
+    movlw D'250'
+    movwf R3
+disp_delay_inner:
+    NOP
+    NOP
+    NOP
+    NOP
+    decfsz R3, F
+    goto disp_delay_inner
+    return
+
+sevensw:
+    movlw high(sevenjmp)
+    movwf PCLATH
+    movf TEMP, W
+    addwf TEMP, W
+    addlw low(sevenjmp)
+    btfsc STATUS, 0
+    incf PCLATH, 1
+    movwf PCL
+sevenjmp:
+    retlw 3Fh
+    retlw 06h
+    retlw 5Bh
+    retlw 4Fh
+    retlw 66h
+    retlw 6Dh
+    retlw 7Dh
+    retlw 07h ; siete
+    retlw 7Fh ; ocho
+    retlw 6Fh ; nueve
+    retlw 77h ; A
+    retlw 7Ch ; B
+    retlw 39h ; C
+    retlw 5Eh ; D
+    retlw 79h ; E
+    retlw 71h ; F
+
+    END
--- a/keypad/main.sync-conflict-20250319-155715-N4N5JQ7.hex
+++ b/keypad/main.sync-conflict-20250319-155715-N4N5JQ7.hex
@ -0,0 +1,28 @@
+:020000040000FA
+:0400000006EF00F017
+:0800080030EF00F08A6AF00EEF
+:10001000936E0F0EC16E956A8C6A966A8D6A84849F
+:10002000386A396A3B6A3A6AD08EF28EF28CF2866E
+:10003000F19EF1800E0E3B6E816E83EC00F00D0E92
+:100040003B6E816E83EC00F00B0E3B6E816E83EC99
+:1000500000F0070E3B6E816E83EC00F01AEF00F0AB
+:10006000F2A0100081500000F00B396E393A3A626C
+:100070004AEC00F0386E8DEC00F0836E76EC00F008
+:1000800076EC00F076EC00F076EC00F076EC00F028
+:10009000F29010003BB055EF00F039A0010C39A2EE
+:1000A000020C39A4030C39A60A0C3BB260EF00F035
+:1000B00039A0040C39A2050C39A4060C39A60B0C86
+:1000C0003BB46BEF00F039A0070C39A2080C39A43F
+:1000D000090C39A60C0C3BB6000C39A0000C39A257
+:1000E000000C39A4000C39A60D0C000CFA0E256E7C
+:1000F000FA0E266E00000000262E7AEF00F0252E64
+:1001000078EF00F01200FA0E246E000000000000EC
+:100110000000242E85EF00F01200010EFA6E385018
+:1001200038242A0FD8B0FA2AF96E3F0C060C5B0C63
+:100130004F0C660C6D0C7D0C070C7F0C6F0C770C54
+:0A0140007C0C390C5E0C790C710C7C
+:020000040030CA
+:04000000000C1F1EB3
+:02000500038175
+:060008000FC00FE00F40E5
+:00000001FF
--- a/test/main.asm
+++ b/test/main.asm
@ -8,6 +8,7 @@ CONFIG LVP = OFF          ; Low-Voltage Programming off
 CONFIG MCLRE = OFF        ; MCLR pin disabled, RE3 input enabled
 R1 EQU 0x020
 R2 EQU 0x021
+TEMP EQU 0x22

    ORG 0x00                 ; Program starts at address 0

@ -16,15 +17,17 @@ Start:
    CLRF TRISD               ; Set all PORTB pins as output
    CLRF LATD                ; Clear PORTB outputs

-    CLRF LATB
    BCF INTCON2, 7
-    movlw 0fh           ; Set all pins to digital I/0
-    movwf ADCON1
+    MOVLW 0fh           ; Set all pins to digital I/0
+    MOVWF ADCON1
    MOVLW 0xFF
    MOVWF TRISB
+    CLRF LATB
+    ;MOVLW 0x0E
+    ;MOVWF PORTB

-loop:
-    movff PORTB, PORTD
-    goto loop
+
+loop: ; Read first nibble of port D and print it to the second nibble
+    MOVFF PORTB, PORTD

    END                      ; End of program
--- a/test/main.hex
+++ b/test/main.hex
@ -1,6 +1,6 @@
 :020000040000FA
-:10000000956A8C6A8A6AF19E0F0EC16EFF0E936E1E
-:0800100081CF83FF08EF00F02F
+:10000000956A8C6AF19E0F0EC16EFF0E936E8A6A1E
+:0400100081CF83FF1A
 :020000040030CA
 :04000000000C1F1EB3
 :02000500038175
Author	SHA1	Message	Date
fernando	055c39faf9	Added examples in sdcc c	2025-05-02 17:51:54 -06:00
fernando	47b0b509dc	added a couple C examples	2025-03-24 22:25:53 -06:00