test_floats_s

extern      printf
extern      reg_print
extern      stk_print

segment     .data

fpstackprint:   db      `st7: [%.4E] `,10,`st6: [%.4E] `,10,`st5: [%.4E] `,10,`st4: [%.4E] `,10,
        db      `st3: [%.4E] `,10,`st2: [%.4E] `,10,`st1: [%.4E] `,10,`st0: [%.4E] `,10,10,0

hex_of_float:   db      `x%.8f`,10,0



segment     .txt
        global      test_floats



;;;------------------------------------------------------------------------------------------------------------------------
;;;   begin main section
;;;------------------------------------------------------------------------------------------------------------------------

test_floats:
;;test_floats(float * num1, float * num2);


        ;mov        ezx,        [ebp+08h]   ;; arg 1 num1 3.5
        ;mov        ezx,        [ebp+0Ch]   ;; arg 2 num2 1.5

        enter       0,0
        pusha

        mov     eax,        1

        mov     esi,        [ebp+08h]
        fld     dword [esi]
        mov     esi,        [ebp+0Ch]
        fld     dword [esi]
        fldz
        fldz
        fldz
        fldz
        fld1
        fld1
        ;^ this portion here, I just fill out the float stack with 8 numbers


        mov     ecx,        esp
        mov     edx,        ebp
        call        reg_print
        call        stk_print

        call        print_fpstack
        ;; segfault occurs before this line
        ;^ something not right with the esp & ebp when this is called




        mov     ecx,        esp
        mov     edx,        ebp
        call        reg_print
        call        stk_print


                                ;; [0]  [011 1111 1111]  [1000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000]
                                ;; 0011 1111 1111 1100 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000
                                ;; x 3FF8 0000 0000 0000
        ;mov        eax,        3FFC0000h   ;; this is 1.75f
        ;mov        ebx,        00000000h
        ;push       eax
        ;push       ebx

        ;sub        esp,        8       ;; emulating a PUSH
        ;fst        qword [esp]         ;; this is supposed to take st0 & put it into memory (4 bytes)

        ;push       hex_of_float
        ;call       printf

        ;pop        eax

        ;call       print_fpstack

        ;fld1

        popa
        leave
        ret
;;;------------------------------------------------------------------------------------------------------------------------
;;;   end main section
;;;------------------------------------------------------------------------------------------------------------------------

print_fpstack:

        enter       0,0
        ;pusha

        mov     ecx,        esp
        mov     edx,        ebp
        call        reg_print
        call        stk_print           ;;ok so far



        sub     esp,        8       ;; emulating a PUSH  what if my psuh is backwards ... again
        fstp        qword [esp]         ;; this is supposed to take st0 & put it into memory (8 bytes)

        sub     esp,        8
        fstp        qword [esp]

        sub     esp,        8
        fstp        qword [esp]

        sub     esp,        8
        fstp        qword [esp]

        sub     esp,        8
        fstp        qword [esp]

        sub     esp,        8
        fstp        qword [esp]

        sub     esp,        8
        fstp        qword [esp]

        sub     esp,        8
        fstp        qword [esp]

        push        fpstackprint


        mov     ecx,        esp
        mov     edx,        ebp
        call        reg_print
        call        stk_print


        call        printf


        mov     ecx,        esp
        mov     edx,        ebp
        call        reg_print
        call        stk_print

        add     esp,        04h     ;; fpstackprint push - pop'd

        fld     qword [esp]         ;;1
        add     esp,        08h

        fld     qword [esp]         ;;2
        add     esp,        08h

        fld     qword [esp]         ;;3
        add     esp,        08h

        fld     qword [esp]         ;;4
        add     esp,        08h

        fld     qword [esp]         ;;5
        add     esp,        08h

        fld     qword [esp]         ;;6
        add     esp,        08h

        fld     qword [esp]         ;;7
        add     esp,        08h

        fld     qword [esp]         ;;8, 8 floats a,ha-ha-ha-ha (the count)
        add     esp,        08h

        ;add        esp,        4Ah;



        ;popa
        leave
        ret