diff options
Diffstat (limited to 'libc/i386fp/ftst.x')
| -rw-r--r-- | libc/i386fp/ftst.x | 28 |
1 files changed, 28 insertions, 0 deletions
diff --git a/libc/i386fp/ftst.x b/libc/i386fp/ftst.x new file mode 100644 index 0000000..2a92ef1 --- /dev/null +++ b/libc/i386fp/ftst.x @@ -0,0 +1,28 @@ +! bcc 386 floating point routines (version 2) -- Ftst, Ftstd, Ftstf +! authors: Timothy Murphy (tim@maths.tcd.ie), Bruce Evans + +#include "fplib.h" + +#if 0 /* bcc doesn't generate Ftst (but it might in future) */ + .globl Ftst +#endif + .align ALIGNMENT +Ftst: + cmp dword PC_SIZE+D_HIGH[esp],#0 ! need only test upper dword of x + ret #D_SIZE + +! Compare double at address [ebx] with 0 + + .globl Ftstd + .align ALIGNMENT +Ftstd: + cmp dword D_HIGH[ebx],#0 ! need only test upper dword of x + ret + +! Compare float at address [ebx] with 0 + + .globl Ftstf + .align ALIGNMENT +Ftstf: + cmp dword F_HIGH[ebx],#0 + ret |