Repo init

fibb/Makefile

@@ -0,0 +1,13 @@
+all: fibb_arm fibb_ccnt sec_ccnt
+
+fibb_arm: fibb_c.c fibb.s
+	gcc fibb.s fibb_c.c -o fibb_arm
+
+fibb_ccnt: fibb_ccnt.c fibb.s timestamp.s
+	gcc fibb.s timestamp.s fibb_ccnt.c -o fibb_ccnt
+
+sec_ccnt: sec_ccnt.c timestamp.s
+	gcc sec_ccnt.c timestamp.s -o sec_ccnt
+
+clean:
+	rm fibb_arm fibb_ccnt sec_ccnt

fibb/fibb.s

@@ -0,0 +1,26 @@
+.global fibb
+.type fibb, %function
+
+.text
+fibb:
+push {r4, lr}
+
+cmp r0, #0
+moveq r0, #0
+popeq {r4, pc}
+
+cmp r0, #1
+moveq r0, #1
+popeq {r4, pc}
+
+sub r0, r0, #1
+push {r0}
+bl fibb
+mov r4, r0
+pop {r0}
+
+sub r0, r0, #1
+bl fibb
+add r0, r0, r4
+
+pop {r4, pc}

fibb/fibb_c.c

@@ -0,0 +1,16 @@
+#include <stdio.h>
+
+// Jan Potocki 2020
+
+unsigned long fibb(unsigned long n);
+
+int main()
+{
+	unsigned long term, result;
+
+	scanf("%lu", &term);
+	result = fibb(term);
+	printf("%lu\n", result);
+
+	return 0;
+}

fibb/fibb_ccnt.c

@@ -0,0 +1,30 @@
+#include <stdio.h>
+
+// Jan Potocki 2020
+
+unsigned long fibb(unsigned long n);
+unsigned long timestamp();
+
+int main()
+{
+	unsigned long term, result;
+	unsigned long tstamp1, tstamp2;
+
+	scanf("%lu", &term);
+	tstamp1 = timestamp();
+	result = fibb(term);
+	tstamp2 = timestamp();
+
+	printf("%lu\n", result);
+
+	if(tstamp2 > tstamp1)
+	{
+		printf("Cycles: %lu\n", tstamp2-tstamp1);
+	}
+	else
+	{
+		printf("Cycles: invalid measure\n");
+	}
+
+	return 0;
+}

fibb/sec_ccnt.c

@@ -0,0 +1,35 @@
+#include <stdio.h>
+#include <time.h>
+
+// Jan Potocki 2020
+
+unsigned long timestamp();
+
+int main()
+{
+	unsigned long tstamp1, tstamp2;
+
+	tstamp1 = timestamp();
+	
+	// Tego z jakiegos powodu nie mozna zrobic za pomoca sleep(1)...
+	// ...cykle nie sa zliczane prawidlowo - wiec goraca petla
+	clock_t t;
+	do
+	{
+		t = clock();
+	}
+	while(t < CLOCKS_PER_SEC);
+
+	tstamp2 = timestamp();
+
+	if(tstamp2 > tstamp1)
+	{
+		printf("Cycles: %lu\n", tstamp2-tstamp1);
+	}
+	else
+	{
+		printf("Cycles: invalid measure\n");
+	}
+
+	return 0;
+}

fibb/timestamp.s

@@ -0,0 +1,8 @@
+.global timestamp
+.type timestamp, %function
+
+.text
+timestamp:
+isb
+mrc p15, 0, r0, c9, c13, 0
+mov pc, lr

hello/Makefile

@@ -0,0 +1,10 @@
+all: hello
+
+hello: hello.o
+	ld hello.o -o hello
+
+hello.o: hello.s
+	as hello.s -o hello.o
+
+clean:
+	rm hello.o hello

hello/hello.s

@@ -0,0 +1,21 @@
+SYSEXIT = 1
+SYSWRITE = 4
+STDOUT = 1
+
+.global _start
+
+.data
+str: .ascii "Hello world!\n"
+str_len = . - str
+
+.text
+_start:
+mov r7, #SYSWRITE
+mov r0, #STDOUT
+ldr r1, =str
+mov r2, #str_len
+swi 0x0
+
+mov r7, #SYSEXIT
+mov r0, #0
+swi 0x0

lab2/Makefile

@@ -0,0 +1,7 @@
+all: mul_arm
+
+mul_arm: mul.s
+	gcc mul.s -o mul_arm
+
+clean:
+	rm mul_arm

lab2/mul.s

@@ -0,0 +1,103 @@
+SYSEXIT = 1
+SYSREAD = 3
+SYSWRITE = 4
+STDIN = 0
+STDOUT = 1
+
+num_length = 256
+word_length = 4
+buf_length = num_length * 2
+num_words = num_length / word_length
+buf_words = buf_length / word_length
+
+.global main
+
+.bss
+num1: .space num_length
+num2: .space num_length
+result: .space buf_length
+
+.text
+main:
+loop:
+mov r7, #SYSREAD
+mov r0, #STDIN
+ldr r1, =num1
+mov r2, #buf_length
+swi 0x0
+
+cmp r0, #buf_length
+blt end
+
+ldr r8, =num1
+ldr r9, =num2
+ldr r10, =result
+
+eor r0, r0, r0
+
+eor r4, r4, r4
+
+zero:
+str r0, [r10, r4, lsl#2]
+add r4, r4, #1
+cmp r4, #buf_words
+blt zero
+
+eor r4, r4, r4
+
+loop1:
+eor r11, r11, r11
+eor r12, r12, r12
+
+eor r2, r2, r2
+
+eor r5, r5, r5
+
+loop2:
+ldr r0, [r8, r4, lsl#2]
+ldr r3, [r9, r5, lsl#2]
+umull r0, r1, r0, r3
+
+msr apsr_nzcvq, r11
+adcs r0, r0, r2
+mrs r11, apsr
+
+mov r2, r1
+add r6, r4, r5
+
+msr apsr_nzcvq, r12
+ldr r1, [r10, r6, lsl#2]
+adcs r1, r0, r1
+str r1, [r10, r6, lsl#2]
+mrs r12, apsr
+
+add r5, r5, #1
+cmp r5, #num_words
+blt loop2
+
+add r6, r6, #1
+
+msr apsr_nzcvq, r11
+adc r2, r2, #0
+
+msr apsr_nzcvq, r12
+ldr r1, [r10, r6, lsl#2]
+adc r1, r1, r2
+str r1, [r10, r6, lsl#2]
+
+add r4, r4, #1
+cmp r4, #num_words
+blt loop1
+
+mov r7, #SYSWRITE
+mov r0, #STDOUT
+ldr r1, =result
+mov r2, #buf_length
+swi 0x0
+
+b loop
+
+end:
+mov r7, #SYSEXIT
+mov r0, #0
+swi 0x0