UMBC | CMSC 313 -- Assembly Language Segment | Previous | Next |
GNU gdb Red Hat Linux (5.3post-0.20021129.18rh) Copyright 2003 Free Software Foundation, Inc. GDB is free software, covered by the GNU General Public License, and you are welcome to change it and/or distribute copies of it under certain conditions. Type "show copying" to see the conditions. There is absolutely no warranty for GDB. Type "show warranty" for details. This GDB was configured as "i386-redhat-linux-gnu"... (gdb) break *main Breakpoint 1 at 0x8048330: file float.asm, line 22. (gdb) run Starting program: /home/burt/courses/umbc/CMSC313/spring04/lectures/Lect10/float/float Breakpoint 1, main () at float.asm:22 warning: Source file is more recent than executable. 22 finit ; Initialize the FPU and clear errors (gdb) s 24 fld dword [ fnr1 ] ; st0 : 1.2000000476837158203125 (gdb) s 25 (gdb) print $st0 $1 = 1.2000000476837158203125 (gdb) print $st1 $2 = 0 (gdb) info all-registers eax 0x1 1 ecx 0x42015554 1107383636 edx 0x40016bc8 1073834952 ebx 0x42130a14 1108544020 esp 0xbfffed0c 0xbfffed0c ebp 0xbfffed28 0xbfffed28 esi 0x40015360 1073828704 edi 0x80483a8 134513576 eip 0x8048339 0x8048339 eflags 0x200346 2097990 cs 0x23 35 ss 0x2b 43 ds 0x2b 43 es 0x2b 43 fs 0x0 0 gs 0x33 51 st0 1.2000000476837158203125 (raw 0x3fff99999a0000000000) st1 0 (raw 0x00000000000000000000) st2 0 (raw 0x00000000000000000000) st3 0 (raw 0x00000000000000000000) st4 0 (raw 0x00000000000000000000) st5 0 (raw 0x00000000000000000000) st6 0 (raw 0x00000000000000000000) st7 0 (raw 0x00000000000000000000) fctrl 0x37f 895 fstat 0x3800 14336 ftag 0x3fff 16383 fiseg 0x23 35 fioff 0x8048333 134513459 foseg 0x2b 43 fooff 0x8049434 134517812 fop 0x0 0 xmm0 {v4_float = {0x0, 0x0, 0x0, 0x0}, v2_double = {0x0, 0x0}, v16_int8 = {0x0}, v8_int16 = {0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0}, v4_int32 = {0x0, 0x0, 0x0, 0x0}, v2_int64 = {0x0, 0x0}, uint128 = 0x00000000000000000000000000000000} ---Type to continue, or q to quit---q