Add demos for lab08.

Add demos for lab08.
Signed-off-by: Gabriel Mocanu <[email protected]>

laborator/content/stiva/0-mean/mean.asm

@@ -1,4 +1,4 @@
-%include "../utils/printf32.asm"
+%include "printf32.asm"
 
 %define ARRAY_SIZE 13
 %define DECIMAL_PLACES 5

laborator/content/stiva/1-max/max.asm

@@ -1,4 +1,4 @@
-%include "../utils/printf32.asm"
+%include "printf32.asm"
 
 section .text
 

laborator/content/stiva/2-reverse/reverse-array.asm

@@ -1,4 +1,4 @@
-%include "../utils/printf32.asm"
+%include "printf32.asm"
 
 %define ARRAY_LEN 7
 

laborator/content/stiva/3-stack-addressing/stack-addressing.asm

@@ -1,4 +1,4 @@
-%include "../utils/printf32.asm"
+%include "printf32.asm"
 
 %define NUM 5
    

laborator/content/stiva/4-local-var/merge-arrays.asm

@@ -1,4 +1,4 @@
-%include "../utils/printf32.asm"
+%include "printf32.asm"
 
 %define ARRAY_1_LEN 5
 %define ARRAY_2_LEN 7

laborator/content/stiva/5-gcd/gcd.asm

@@ -1,4 +1,4 @@
-%include "../utils/printf32.asm"
+%include "printf32.asm"
 
 section .text
 

laborator/content/stiva/demo/stack-addressing/Makefile

@@ -0,0 +1,2 @@
+PROGNAME := stack-addressing
+include ../../../utils/Makefile.generic

laborator/content/stiva/demo/stack-addressing/stack-addressing.asm

@@ -0,0 +1,29 @@
+%include "printf32.asm"
+
+section .text
+
+extern printf
+global main
+main:
+    push ebp
+    mov ebp, esp
+
+    push dword 10
+    push dword 11
+    push dword 12
+    push dword 13
+
+    mov eax, ebp
+print_stack:
+    PRINTF32 `0x\x0`
+    PRINTF32 `%x\x0`, eax
+    PRINTF32 `: 0x\x0`
+    PRINTF32 `%x\n\x0`, [eax]
+
+    sub eax, 4
+    cmp eax, esp
+    jge print_stack
+
+    xor eax, eax
+    leave
+    ret

laborator/content/stiva/demo/stack-operations/Makefile

@@ -0,0 +1,2 @@
+PROGNAME := stack-operations
+include ../../../utils/Makefile.generic

laborator/content/stiva/demo/stack-operations/stack-operations.asm

@@ -0,0 +1,45 @@
+%include "printf32.asm"
+
+section .text
+
+; esp -> stack pointer
+; ebp -> base pointer
+
+extern printf
+global main
+main:
+    push ebp
+    mov ebp, esp
+
+    push dword 10 ; sub esp, 4;  mov [esp], 10;
+    push dword 11 ; sub esp, 4;  mov [esp], 11;
+    push dword 12 ; sub esp, 4;  mov [esp], 12;
+    push dword 13 ; sub esp, 4;  mov [esp], 13;
+    push dword 14 ; sub esp, 4;  mov [esp], 13;
+
+
+    pusha  ; push all registers on the stack
+    popa  ; pop all registers from the stack
+
+    ; Version 1
+    pop eax; ; mov eax, [esp]; add esp, 4
+    pop eax; ; mov eax, [esp]; add esp, 4
+    pop eax; ; mov eax, [esp]; add esp, 4
+    pop eax; ; mov eax, [esp]; add esp, 4
+    pop eax; ; mov eax, [esp]; add esp, 4
+
+    ; Version 2
+    ; add esp, 20 ; 4 * number_of_push
+
+    ; Version 3
+    ; mov esp, ebp
+
+    ; sub esp <-> add esp -> use to allocate/deallocate memory
+
+    ; Aloc 8 bytes <-> 2 int
+    ; sub esp, 8
+    ; mov [esp], 10
+    ; mov [esp + 4], 12
+
+    leave
+    ret

laborator/content/stiva/demo/sum-n/Makefile

@@ -1,19 +1,2 @@
-NASM = nasm
-AFILES = sum_n_init.asm sum_n_interm.asm sum_n.asm
-OBJS = $(AFILES:.asm=.o)
-ASM_FLAGS = -f elf32 -g
-LD=gcc
-LDFLAGS = -m32 -g
-BINARIES = $(OBJS:.o=)
-
-all: $(BINARIES)
-
-%.o: %.asm
-	$(NASM) $(ASM_FLAGS) -o $@ $<
-
-mean: mean.o
-	$(LD) $(LDFLAGS) -o $@ $^
-
-clean:
-	rm -f *.o $(BINARIES) *.s
-	rm -f *~
+PROGNAME := sum_n
+include ../../../utils/Makefile.generic

laborator/content/stiva/demo/sum-n/sum_n.asm

@@ -1,25 +1,25 @@
-%include "../utils/printf32.asm"
+%include "printf32.asm"
 
 section .text
 extern printf
 global main
 
 main:
-        push    ebp
-        mov     ebp, esp
+    push    ebp
+    mov     ebp, esp
 
-        ; ecx <- i (number / increment)
-        ; eax <- sum
-        ; init i (i <- 100)
-        mov ecx, 100
-        ; init sum (sum <- 0)
-        xor eax, eax   ; mov eax, 0
+    ; ecx <- i (number / increment)
+    ; eax <- sum
+    ; init i (i <- 100)
+    mov ecx, 100
+    ; init sum (sum <- 0)
+    xor eax, eax   ; mov eax, 0
 
 .L3:
-        add eax, ecx
-        loop .L3    ; dec ecx; cmp ecx, 0; jne .L3
+    add eax, ecx
+    loop .L3    ; dec ecx; cmp ecx, 0; jne .L3
 
-        PRINTF32 `%u\n\x0`, eax
-        mov     eax, 0
-        pop     ebp
-        ret
+    PRINTF32 `%u\n\x0`, eax
+    mov     eax, 0
+    pop     ebp
+    ret

laborator/content/stiva/demo/sum_n_init/Makefile

@@ -0,0 +1,2 @@
+PROGNAME := sum_n_init
+include ../../../utils/Makefile.generic

laborator/content/stiva/demo/sum_n_init/sum_n_init.asm

@@ -0,0 +1,32 @@
+%include "printf32.asm"
+
+section .data
+    i: dd 0
+    sum: dd 0
+
+section .text
+extern printf
+global main
+
+main:
+    push    ebp
+    mov     ebp, esp
+    mov     dword [i], 1
+.L3:
+    mov     eax, [i]
+    cmp     eax, 100
+    ja      .L2
+    mov     edx, [sum]
+    mov     eax, [i]
+    add     eax, edx
+    mov     [sum], eax
+;        mov     eax, [i]
+;        add     eax, 1
+;        mov     [i], eax
+    inc dword [i]
+    jmp     .L3
+.L2:
+    PRINTF32 `%u\n\x0`, dword [sum]
+    mov     eax, 0
+    pop     ebp
+    ret

laborator/content/stiva/demo/sum_n_interm/Makefile

@@ -0,0 +1,2 @@
+PROGNAME := sum_n_interm
+include ../../../utils/Makefile.generic

laborator/content/stiva/demo/sum_n_interm/sum_n_interm.asm

@@ -0,0 +1,26 @@
+%include "printf32.asm"
+
+section .data
+    i: dd 0
+    sum: dd 0
+
+section .text
+extern printf
+global main
+
+main:
+    push    ebp
+    mov     ebp, esp
+    mov     dword [i], 1
+.L3:
+    mov     eax, [i]
+    cmp     eax, 100
+    ja      .L2
+    add [sum], eax
+    inc dword [i]
+    jmp     .L3
+.L2:
+    PRINTF32 `%u\n\x0`, dword [sum]
+    mov     eax, 0
+    pop     ebp
+    ret