add: minilibc to the examples

examples/minilibc/memcpy.pasm

@@ -0,0 +1,40 @@
+; memcpy 
+
+end_:
+push a1
+call free
+push a2
+call free
+mov eax, 0
+end
+
+memcpy:
+; a1 -> buffer1
+; a2 -> buffer2 
+; a3 -> n
+
+mov a5, a1
+mov a6, a2
+mov a4, 0
+
+loop:
+cmp a4, a3
+je end_
+mov (char)*a5, (char)*a6
+add a5, 1
+add a6, 1
+add a4, 1
+jmp loop
+
+main:
+mov a3, 5
+
+push 10
+call malloc
+mov a1, eax ;save the ptr
+
+push 10
+call malloc
+mov a2, eax ;save the ptr
+
+jmp memcpy

examples/minilibc/memset.pasm

@@ -0,0 +1,34 @@
+; memset
+
+end_:
+push a1
+call free
+mov eax, 0
+end
+
+memset:
+; a1 -> buffer
+; a2 -> size
+; a3 -> value
+
+sub a2, 1
+mov a5, 0
+mov a4, a1
+
+loop:
+cmp a5, a2
+je end_
+mov (char)*a4, (char)a3
+add a4, 1
+add a5, 1
+jmp loop
+
+main:
+mov a2, 10
+mov a3, 97 ; 'a'
+
+push a2
+call malloc
+mov a1, eax ;save the ptr
+
+jmp memset

examples/minilibc/strcasecmp.pasm

@@ -0,0 +1,44 @@
+; strcasecmp 
+
+set str1 "hello, world !\0"
+set str2 "hello, world !\0"
+
+end_:
+mov eax, 0
+end
+
+fail:
+mov eax, a4
+sub eax, a5
+end
+
+main:
+mov a1, str1 
+mov a2, str2
+mov a3, 0
+
+loop:
+cmp (char)*a1, 0
+jne 2
+cmp (char)*a2, 0
+je end_
+
+mov a4, (char)*a1
+cmp a4, 64
+jna 2
+cmp a4, 90
+ja 2
+add a4, 32
+
+mov a5, (char)*a2
+cmp a5, 64
+jna 2
+cmp a5, 90
+ja 2
+add a5, 32
+
+cmp a4, a5
+jne fail 
+add a1, 1
+add a2, 1
+jmp loop

examples/minilibc/strchr.pasm

@@ -0,0 +1,25 @@
+; strchr
+
+set str "hello, world !\0"
+
+found:
+mov a2, a1
+push a2
+call print
+
+end_:
+mov eax, a2
+end
+
+main:
+mov a1, str 
+mov a2, 0
+mov a3, 111 ; 'o'
+
+loop:
+cmp *a1, 0
+je end_
+cmp a3, (char)*a1
+je found
+add a1, 1
+jmp loop

examples/minilibc/strcmp.pasm

@@ -0,0 +1,29 @@
+; strcmp 
+
+set str1 "hello, world !\0"
+set str2 "hello, world !\0"
+
+end_:
+mov eax, 0
+end
+
+fail:
+mov eax, (char)*a1
+sub eax, (char)*a2
+end
+
+main:
+mov a1, str1 
+mov a2, str2
+mov a3, 0
+
+loop:
+cmp (char)*a1, 0
+jne 2
+cmp (char)*a2, 0
+je end_
+cmp (char)*a1, (char)*a2
+jne fail 
+add a1, 1
+add a2, 1
+jmp loop

examples/minilibc/strlen.pasm

@@ -0,0 +1,18 @@
+; strlen
+
+set str "hello, world !\0"
+
+end_:
+mov eax, a2
+end
+
+main:
+mov a1, str 
+mov a2, 0
+
+loop:
+cmp (char)*a1, 0
+je end_
+add a2, 1
+add a1, 1
+jmp loop

examples/minilibc/strncmp.pasm

@@ -0,0 +1,34 @@
+; strncmp 
+
+set str1 "hello, world !\0"
+set str2 "hella, world !\0"
+
+end_:
+mov eax, 0
+end
+
+fail:
+mov eax, (char)*a1
+sub eax, (char)*a2
+end
+
+main:
+mov a1, str1 
+mov a2, str2
+mov a4, 6 ;n
+mov a5, 1
+mov a3, 0
+
+loop:
+cmp a5, a4
+je end_
+cmp (char)*a1, 0
+jne 2
+cmp (char)*a2, 0
+je end_
+cmp (char)*a1, (char)*a2
+jne fail 
+add a1, 1
+add a2, 1
+add a5, 1
+jmp loop

examples/minilibc/strrchr.pasm

@@ -0,0 +1,26 @@
+; strrchr
+
+set str "hello, world !\0"
+
+found:
+mov a2, a1
+ret
+
+end_:
+push a2
+call print
+mov eax, a2
+end
+
+main:
+mov a1, str 
+mov a2, 0
+mov a3, 111 ; 'o'
+
+loop:
+cmp (char)*a1, 0
+je end_
+cmp (char)a3, (char)*a1
+je found
+add a1, 1
+jmp loop

examples/minilibc/strstr.pasm

@@ -0,0 +1,26 @@
+; strstr 
+
+set str1 "hello, world !\0"
+set str2 "hello\0"
+
+end_:
+mov eax, a1
+end
+
+fail:
+mov eax, 0
+end
+
+main:
+mov a1, str1 
+mov a2, str2
+mov a3, 0
+
+loop:
+cmp (char)*a2, 0
+je end_
+cmp (char)*a1, (char)*a2
+jne fail 
+add a1, 1
+add a2, 1
+jmp loop