ack/mach/mips/libem/c_ud_i.s
David Given 75308901bc Added hi[] and lo[] functions to the assembler; fix things enough that we now
get to the point of failing to link programs.
2018-09-08 22:42:06 +02:00

33 lines
393 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 f31 may be used.
*/
ori at, zero, hi[.fd_80000000]
ldc1 f31, lo[.fd_80000000] (at)
c.le.d 0, f31, f0
bc1t toobig
nop
trunc.w.d f0, f0
mfc1 r2, f0
jr ra
nop
toobig:
sub.d f0, f0, f31
trunc.w.d f0, f0
mfc1 r2, f0
addiu r2, r2, 0x8000
jr ra
nop