[AC2] Aula03 Addicionals

Signed-off-by: TiagoRG <tiago.rgarcia@ua.pt>

2ano/2semestre/ac2/aula03/addicional-1.s

@@ -0,0 +1,27 @@
+	.equ	ADDR_BASE, 0xBF88
+	.equ	TRISB, 0x6040
+	.equ	PORTB, 0x6050
+	.equ	TRISE, 0x6100
+	.equ	LATE,  0x6120
+
+	.data
+	.text
+	.globl main
+
+main:
+	lui	$t7, ADDR_BASE
+
+	lw	$t0, TRISE($t7)
+	andi	$t0, $t0, 0xFFC3
+	sw	$t0, TRISE($t7)
+
+	lw	$t0, TRISB($t7)
+	ori	$t0, $t0, 0x000F
+	sw	$t0, TRISB($t7)
+
+loop:
+	lw	$t0, PORTB($t7)
+	sll	$t0, $t0, 2
+	sw	$t0, LATE($t7)
+
+	j	loop

2ano/2semestre/ac2/aula03/addicional-2.s

@@ -0,0 +1,62 @@
+	.equ	ADDR_BASE, 0xBF88
+	.equ	TRISE, 0x6100
+	.equ	LATE,  0x6120
+	.equ	TRISD, 0x60C0
+	.equ	LATD, 0x60E0
+
+	.equ	READ_CORE_TIMER, 11
+	.equ	RESET_CORE_TIMER, 12
+
+	.data
+	.text
+	.globl main
+
+main:
+	lui	$t7, ADDR_BASE
+
+	lw	$t0, TRISE($t7)
+	andi	$t0, $t0, 0xFFFE
+	sw	$t0, TRISE($t7)
+
+	lw	$t0, TRISD($t7)
+	andi	$t0, $t0, 0xFFFE
+	sw	$t0, TRISD($t7)
+
+	li	$t0, 0x0000
+
+loop:
+	lw	$t1, LATE($t7)
+	andi	$t1, $t1, 0xFFFE
+	or	$t1, $t1, $t0
+	sw	$t1, LATE($t7)
+
+	lw	$t1, LATD($t7)
+	andi	$t1, $t1, 0xFFFE
+	or	$t1, $t1, $t0
+	sw	$t1, LATD($t7)
+
+	addi	$sp, $sp, -8
+	sw	$ra, 0($sp)
+	sw	$t0, 4($sp)
+
+	li	$a0, 500
+	jal	delay
+	
+	lw	$ra, 0($sp)
+	lw	$t0, 4($sp)
+	addi	$sp, $sp, 8
+
+	xori	$t0, $t0, 0x0001
+	j	loop
+
+# ----------- DELAY FUNCTION ------------
+
+delay:	li	$v0, RESET_CORE_TIMER
+	syscall
+
+wait:	li	$v0, READ_CORE_TIMER
+	syscall
+	mul	$t0, $a0, 20000
+	blt	$v0, $t0, wait
+
+	jr	$ra

2ano/2semestre/ac2/aula03/part2-1.s

@@ -47,9 +47,6 @@ delay:
 	syscall
 	move	$t6, $v0
 
-	# 20,000,000 cycles = 1 second = 1 Hz
-	# 4,000,000 cycles = 0.2 second = 5 Hz
-	# 2,000,000 cycles = 0.1 second = 10 Hz
 	blt	$t6, 20000000, delay
 
 	addi	$t0, $t0, 1			# incrementa o contador

2ano/2semestre/ac2/aula03/part2-2.s

@@ -0,0 +1,55 @@
+	.equ	ADDR_BASE, 0xBF88
+	.equ	TRISB, 0x6040
+	.equ	PORTB, 0x6050
+	.equ	LATB,  0x6060
+	.equ	TRISC, 0x6080
+	.equ	PORTC, 0x6090
+	.equ	LATC,  0x60A0
+	.equ	TRISD, 0x60C0
+	.equ	PORTD, 0x60D0
+	.equ	LATD,  0x60E0
+	.equ	TRISE, 0x6100
+	.equ	PORTE, 0x6110
+	.equ	LATE,  0x6120
+
+	.equ	READ_CORE_TIMER, 11
+	.equ	RESET_CORE_TIMER, 12
+
+	.data
+	.text
+	.globl main
+
+# Mapa de registos
+# $t7:	endereço base periféricos
+# $t0:	contador
+
+main:
+	lui	$t7, ADDR_BASE
+	
+	lw	$t0, TRISE($t7)
+	andi	$t0, $t0, 0xFFE1		# 1111 1111 1110 0001 (isola bits 4-1)
+	sw	$t0, TRISE($t7)			# Configura RE4-RE1 como output
+
+	li	$t0, 0				# Iniciar contagem
+
+loop:
+	lw	$t1, LATE($t7)
+	andi	$t1, $t1, 0xFFE1		# 1111 1111 1110 0001 (reset bits 4-1)
+	sll	$t2, $t0, 1			# shift do contador para os bits 4-1
+	or	$t1, $t1, $t2			# merge contador com valor do LATE
+	sw	$t1, LATE($t7)			# atualiza valor do LATE
+
+	li	$v0, RESET_CORE_TIMER
+	syscall
+
+delay:
+	li	$v0, READ_CORE_TIMER
+	syscall
+	move	$t6, $v0
+
+	blt	$t6, 5000000, delay
+
+	addiu	$t0, $t0, -1			# decrementa o contador
+	andi	$t0, $t0, 0x000F		# limita o contador com modulo 16
+	j	loop
+

2ano/2semestre/ac2/aula03/part2-3.s

@@ -0,0 +1,69 @@
+	.equ	ADDR_BASE, 0xBF88
+	.equ	TRISB, 0x6040
+	.equ	PORTB, 0x6050
+	.equ	LATB,  0x6060
+	.equ	TRISC, 0x6080
+	.equ	PORTC, 0x6090
+	.equ	LATC,  0x60A0
+	.equ	TRISD, 0x60C0
+	.equ	PORTD, 0x60D0
+	.equ	LATD,  0x60E0
+	.equ	TRISE, 0x6100
+	.equ	PORTE, 0x6110
+	.equ	LATE,  0x6120
+
+	.equ	READ_CORE_TIMER, 11
+	.equ	RESET_CORE_TIMER, 12
+
+	.data
+	.text
+	.globl main
+
+# Mapa de registos
+# $t7:	endereço base periféricos
+# $t0:	contador
+
+main:
+	lui	$t7, ADDR_BASE
+	
+	lw	$t0, TRISE($t7)
+	andi	$t0, $t0, 0xFFE1		# 1111 1111 1110 0001 (isola bits 4-1)
+	sw	$t0, TRISE($t7)			# Configura RE4-RE1 como output
+
+	lw	$t1, TRISB($t7)
+	ori	$t1, $t1, 0x0008		# 0000 0000 0000 0010 (isola bit 1)
+	sw	$t1, TRISB($t7)			# Configura RB3 como input
+
+	li	$t0, 0				# Iniciar contagem
+
+loop:
+	lw	$t2, LATE($t7)
+	andi	$t2, $t2, 0xFFE1		# 1111 1111 1110 0001 (reset bits 4-1)
+	sll	$t3, $t0, 1			# shift do contador para os bits 4-1
+	or	$t2, $t2, $t3			# merge contador com valor do LATE
+	sw	$t2, LATE($t7)			# atualiza valor do LATE
+
+	li	$v0, RESET_CORE_TIMER
+	syscall
+
+delay:
+	li	$v0, READ_CORE_TIMER
+	syscall
+	move	$t6, $v0
+
+	blt	$t6, 10000000, delay
+
+if:	
+	lw	$t2, PORTB($t7)
+	andi	$t2, $t2, 0x0008		# obtem posição do switch 3
+	beqz	$t2, else			# incrementa se bit = 1, decrementa de bit = 0
+
+	addiu	$t0, $t0, 1			# incrementa o contador
+	j	endif
+else:
+	addiu	$t0, $t0, -1			# decrementa o contador
+
+endif:
+	andi	$t0, $t0, 0x000F		# limita o contador com modulo 16
+	j	loop
+

2ano/2semestre/ac2/aula03/part2-4.s

@@ -0,0 +1,77 @@
+	.equ	ADDR_BASE, 0xBF88
+	.equ	TRISB, 0x6040
+	.equ	PORTB, 0x6050
+	.equ	LATB,  0x6060
+	.equ	TRISC, 0x6080
+	.equ	PORTC, 0x6090
+	.equ	LATC,  0x60A0
+	.equ	TRISD, 0x60C0
+	.equ	PORTD, 0x60D0
+	.equ	LATD,  0x60E0
+	.equ	TRISE, 0x6100
+	.equ	PORTE, 0x6110
+	.equ	LATE,  0x6120
+
+	.equ	READ_CORE_TIMER, 11
+	.equ	RESET_CORE_TIMER, 12
+
+	.data
+	.text
+	.globl main
+
+# Mapa de registos
+# $t7:	endereço base periféricos
+# $t0:	contador
+
+main:
+	lui	$t7, ADDR_BASE
+	
+	lw	$t0, TRISE($t7)
+	andi	$t0, $t0, 0xFFE1		# 1111 1111 1110 0001 (isola bits 4-1)
+	sw	$t0, TRISE($t7)			# Configura RE4-RE1 como output
+
+	lw	$t1, TRISB($t7)
+	ori	$t1, $t1, 0x0002		# 0000 0000 0000 0010 (isola bit 1)
+	sw	$t1, TRISB($t7)			# Configura RB1 como input
+
+	li	$t0, 0x0001			# Iniciar contagem
+
+loop:
+	lw	$t2, LATE($t7)
+	andi	$t2, $t2, 0xFFE1		# 1111 1111 1110 0001 (reset bits 4-1)
+	sll	$t3, $t0, 1			# shift do contador para os bits 4-1
+	or	$t2, $t2, $t3			# merge contador com valor do LATE
+	sw	$t2, LATE($t7)			# atualiza valor do LATE
+
+	li	$v0, RESET_CORE_TIMER
+	syscall
+
+delay:
+	li	$v0, READ_CORE_TIMER
+	syscall
+	move	$t6, $v0
+
+	blt	$t6, 6666666, delay
+
+switch_check:	
+	lw	$t2, PORTB($t7)
+	andi	$t2, $t2, 0x0002		# obtem posição do switch 1
+	beqz	$t2, shift_right		# shift_left se bit = 1, shift_right de bit = 0
+
+shift_left:
+	sll	$t0, $t0, 1
+	andi	$t5, $t0, 0x000F
+
+	bnez	$t5, sll_else
+	li	$t0, 0x0001
+sll_else:
+	j	switch_end
+
+shift_right:
+	srl	$t0, $t0, 1
+	bnez	$t0, switch_end
+	li	$t0, 0x0008
+
+switch_end:
+	j	loop
+

2ano/2semestre/ac2/aula03/part2-5.s

@@ -0,0 +1,49 @@
+	.equ	ADDR_BASE, 0xBF88
+	.equ	TRISE, 0x6100
+	.equ	LATE,  0x6120
+
+	.equ	READ_CORE_TIMER, 11
+	.equ	RESET_CORE_TIMER, 12
+
+	.data
+	.text
+	.globl main
+
+# Mapa de registos
+# $t7:	endereço base periféricos
+# $t0:	contador
+
+main:
+	lui	$t7, ADDR_BASE
+	
+	lw	$t0, TRISE($t7)
+	andi	$t0, $t0, 0xFFE1		# 1111 1111 1110 0001 (isola bits 4-1)
+	sw	$t0, TRISE($t7)			# Configura RE4-RE1 como output
+
+	li	$t0, 0x0001			# Iniciar contagem
+
+loop:
+	lw	$t1, LATE($t7)
+	andi	$t1, $t1, 0xFFE1		# 1111 1111 1110 0001 (reset bits 4-1)
+	sll	$t2, $t0, 1			# shift do contador para os bits 4-1
+	or	$t1, $t1, $t2			# merge contador com valor do LATE
+	sw	$t1, LATE($t7)			# atualiza valor do LATE
+
+	li	$v0, RESET_CORE_TIMER
+	syscall
+
+delay:
+	li	$v0, READ_CORE_TIMER
+	syscall
+	move	$t2, $v0
+
+	blt	$t2, 13333333, delay
+
+	andi	$t1, $t1, 0x0010		# isolar bit 4
+	srl	$t1, $t1, 4			# colocar bit na posição menos significativa para o contador
+	xori	$t1, $t1, 0x0001		# negar bit
+	sll	$t0, $t0, 1			# shift left do contador
+	or	$t0, $t0, $t1			# colocar bit lido no contador
+
+	j	loop
+

2ano/2semestre/ac2/aula03/part2-6.s

@@ -0,0 +1,49 @@
+	.equ	ADDR_BASE, 0xBF88
+	.equ	TRISE, 0x6100
+	.equ	LATE,  0x6120
+
+	.equ	READ_CORE_TIMER, 11
+	.equ	RESET_CORE_TIMER, 12
+
+	.data
+	.text
+	.globl main
+
+# Mapa de registos
+# $t7:	endereço base periféricos
+# $t0:	contador
+
+main:
+	lui	$t7, ADDR_BASE
+	
+	lw	$t0, TRISE($t7)
+	andi	$t0, $t0, 0xFFE1		# 1111 1111 1110 0001 (isola bits 4-1)
+	sw	$t0, TRISE($t7)			# Configura RE4-RE1 como output
+
+	li	$t0, 0x0000			# Iniciar contagem
+
+loop:
+	lw	$t1, LATE($t7)
+	andi	$t1, $t1, 0xFFE1		# 1111 1111 1110 0001 (reset bits 4-1)
+	sll	$t2, $t0, 1			# shift do contador para os bits 4-1
+	or	$t1, $t1, $t2			# merge contador com valor do LATE
+	sw	$t1, LATE($t7)			# atualiza valor do LATE
+
+	li	$v0, RESET_CORE_TIMER
+	syscall
+
+delay:
+	li	$v0, READ_CORE_TIMER
+	syscall
+	move	$t2, $v0
+
+	blt	$t2, 13333333, delay
+
+	andi	$t1, $t1, 0x0002		# isolar bit 1
+	sll	$t1, $t1, 2                     # colocar bit na posição mais significativa para o contador
+	xori	$t1, $t1, 0x0008                # negar bit
+	srl	$t0, $t0, 1                     # shift right do contador
+	or	$t0, $t0, $t1                   # colocar bit lido no contador
+
+	j	loop
+

2ano/2semestre/ac2/aula03/part2-7.s

@@ -0,0 +1,70 @@
+	.equ	ADDR_BASE, 0xBF88
+	.equ	TRISB, 0x6040
+	.equ	PORTB, 0x6050
+	.equ	TRISE, 0x6100
+	.equ	LATE,  0x6120
+
+	.equ	READ_CORE_TIMER, 11
+	.equ	RESET_CORE_TIMER, 12
+
+	.data
+	.text
+	.globl main
+
+# Mapa de registos
+# $t7:	endereço base periféricos
+# $t0:	contador
+
+main:
+	lui	$t7, ADDR_BASE
+	
+	lw	$t0, TRISE($t7)
+	andi	$t0, $t0, 0xFFE1		# 1111 1111 1110 0001 (isola bits 4-1)
+	sw	$t0, TRISE($t7)			# Configura RE4-RE1 como output
+
+	lw	$t0, TRISB($t7)
+	ori	$t0, $t0, 0x0004		# 0000 0000 0000 0010 (isola bit 1)
+	sw	$t0, TRISB($t7)			# Configura RB1 como input
+
+	li	$t0, 0x0010			# Iniciar contagem
+
+loop:
+	lw	$t1, LATE($t7)
+	andi	$t1, $t1, 0xFFE1		# 1111 1111 1110 0001 (reset bits 4-1)
+	sll	$t2, $t0, 1			# shift do contador para os bits 4-1
+	or	$t1, $t1, $t2			# merge contador com valor do LATE
+	sw	$t1, LATE($t7)			# atualiza valor do LATE
+
+	li	$v0, RESET_CORE_TIMER
+	syscall
+
+delay:
+	li	$v0, READ_CORE_TIMER
+	syscall
+	move	$t2, $v0
+
+	blt	$t2, 13333333, delay
+
+switch_check:
+	lw	$t2, PORTB($t7)
+	andi	$t2, $t2, 0x0004		# 0000 0000 0000 0100 (isola bit 3)
+	beqz	$t2, move_right			# switch3 = 0: move_right, switch3 = 1: move_left
+
+move_left:
+	andi	$t1, $t1, 0x0010		# isolar bit 4
+	srl	$t1, $t1, 4			# colocar bit na posição menos significativa para o contador
+	xori	$t1, $t1, 0x0001                # negar bit
+	sll	$t0, $t0, 1                     # shift left do contador
+
+	j	switch_end
+
+move_right:
+	andi	$t1, $t1, 0x0002		# isolar bit 1
+	sll	$t1, $t1, 2                     # colocar bit na posição mais significativa para o contador
+	xori	$t1, $t1, 0x0008                # negar bit
+	srl	$t0, $t0, 1                     # shift right do contador
+
+switch_end:
+	or	$t0, $t0, $t1			# colocar bit lido no contador
+	j	loop
+