ack/mach/mips/libem/c_ud_i.s
2018-09-12 22:28:40 +02:00

36 lines
468 B
ArmAsm

#
.sect .text; .sect .rom; .sect .data; .sect .bss
.sect .text
.define .c_ud_i
.c_ud_i:
/* Input: f0
* Output: r2
* Only at and f30/f31 may be used.
*/
lui at, ha16[.fd_80000000]
ldc1 f30, lo16[.fd_80000000] (at)
c.le.d 0, f30, f0
bc1t toobig
nop
trunc.w.d f0, f0
mfc1 r2, f0
jr ra
nop
toobig:
sub.d f0, f0, f30
trunc.w.d f0, f0
mfc1 r2, f0
addiu r2, r2, 0x8000
jr ra
nop
.sect .rom
.define .fd_80000000
.fd_80000000:
.dataf8 2147483648.0