Fstsw ax
WebJul 16, 1999 · 17.3 FCOM + FSTSW AX ----- The usual way of doing floating point comparisons is: FLD [a] FCOMP FSTSW AX SAHF JB ASmallerThanB You may improve this code by using FNSTSW AX rather than FSTSW AX and test AH directly rather than using the non-pairable SAHF. Webfstsw stores the status in a general-purpose register; sahf sets the FLAGS register to the higher 8 bits of the register; and the jump is used to judge on whatever flag bit that …
Fstsw ax
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Webax ，但 test 指令仅查看高位8位（ ah ）。因此 41h 匹配状态字的 C0 和 C3 位。在 ah 上使用8位测试可以避免在英特尔CPU上使用带 imm16 的16位 test 时速度减慢。（操作数大小前缀更改指令其余部分的长度，即所谓的长度更改前缀解码器暂停） fld/fcomp/fld/fnstsw ：我 … WebApr 25, 2000 · fstsw ax.IF (ah & FP_EQUALTO) ; if EQUAL; We have an integer! Lucky day. Go convert it into a temp buffer. call FloatToBCD. mov eax, 17 mov ecx, [iExp] sub eax, ecx inc ecx lea esi, [szTemp][eax]; The off-by-one order of magnitude problem below can hit us here. ; We just trim off the possible leading zero..IF (byte ptr [esi] == '0') inc esi dec ...
Webfstsw ax;copy the status word to the AX register fwait;wait until the instruction is completed sahf;copy the condition bits in the CPU's flag register ja this_code;jump to this code section if CF=C0=0 and ZF=C3=0. FSTCW / FNSTCW (Store Control Word) Syntax: fstcw Dest fnstcw Dest. The FSTCW and FNSTCW have exactly the same coding except that ... Web(SHOW WORK) 2) ; begin mov m, 0100010100000000b fcom x fstsw ax and ax,m cmp ax, 0100000000000000b jne L1 mov eax,1 jmp L2 L1: mov This problem has been solved! You'll get a detailed solution from a subject matter expert that helps you learn core concepts.
WebDocumentation Home > IA-32 Assembly Language Reference Manual > Chapter 2 Instruction-Set Mapping > Processor Control Instructions > Store Status Word (fstsw, … WebThe FSTSW instruction checks for and handles pending unmasked floating-point exceptions before storing the status word; the FNSTSW instruction does not. The FNSTSW AX form …
WebDec 1, 2013 · 005C056E 8BC8 mov ecx,eax 005C0570 0FB645 0C movzx eax,byte ptr ss:[ebp+C] 005C0574 03C8 add ecx,eax 005C0576 894C24 0C mov dword ptr ss:[esp+C],ecx ; //Change Here 005C057A DB4424 0C fild dword ptr ss:[esp+C] 005C057E DC1D 78A7BC00 fcomp qword ptr ds:[BCA778] 005C0584 DFE0 fstsw ax 005C0586 …
WebMay 25, 2012 · fstsw ax ;copy the content of the Status Word to AX fwait ;insure the last instruction is completed sahf ;copy the C3/C2/C0 condition codes to the ZF/PF/CF flags jz C3is1 ;either Zero, Empty or Denormalized if C3=1 ... rocky mountain biologicalsWebEquinix DC2 Ashburn Data Center is located at 21715 Filigree Court, Ashburn, VA, USA. The data center is 147600 sqft. There is a total of 118447 sqft in raised floor space for … rocky mountain biohazardThe FSTSW instruction checks for and handles pending unmasked floating-point exceptions before storing the status word; the FNSTSW instruction does not. The FNSTSW AX form of the instruction is used primarily in conditional branching (for instance, after an FPU comparison instruction or an FPREM, FPREM1, or FXAM instruction), where the ... ottoman with tray room essentialWebThe FNSTSW AX form of the instruction is used primarily in conditional branching (for instance, after an FPU comparison instruction or an FPREM, FPREM1, or FXAM … rocky mountain bird farmhttp://www.duoduokou.com/assembly/11559571352320080872.html rocky mountain billy goatWebThe FSTSW instruction checks for and handles pending unmasked floating-point exceptions before storing the status word; the FNSTSW instruction does not. The FNSTSW AX form … ottoman with table trayWebWrite an HLA Assembly language program that implements the following function: procedure grader ( percentage : real32 ); @nodisplay; @noframe; Your function should return in AL the converted character value, as shown in the chart above. (Hint: Since the run-stack doesn't allow for a byte-sized argument to be pushed and popped, you will need to ... ottoman with twin bed inside