| @include "arm/unopWider.S" {"instr":"bl __aeabi_f2lz"} |
| %include "arm/unopWider.S" {"instr":"bl f2l_doconv"} |
| |
| %break |
| /* |
| * Convert the float in r0 to a long in r0/r1. |
| * |
| * We have to clip values to long min/max per the specification. The |
| * expected common case is a "reasonable" value that converts directly |
| * to modest integer. The EABI convert function isn't doing this for us. |
| */ |
| f2l_doconv: |
| stmfd sp!, {r4, lr} |
| mov r1, #0x5f000000 @ (float)maxlong |
| mov r4, r0 |
| bl __aeabi_fcmpge @ is arg >= maxlong? |
| cmp r0, #0 @ nonzero == yes |
| mvnne r0, #0 @ return maxlong (7fffffff) |
| mvnne r1, #0x80000000 |
| ldmnefd sp!, {r4, pc} |
| |
| mov r0, r4 @ recover arg |
| mov r1, #0xdf000000 @ (float)minlong |
| bl __aeabi_fcmple @ is arg <= minlong? |
| cmp r0, #0 @ nonzero == yes |
| movne r0, #0 @ return minlong (80000000) |
| movne r1, #0x80000000 |
| ldmnefd sp!, {r4, pc} |
| |
| mov r0, r4 @ recover arg |
| mov r1, r4 |
| bl __aeabi_fcmpeq @ is arg == self? |
| cmp r0, #0 @ zero == no |
| moveq r1, #0 @ return zero for NaN |
| ldmeqfd sp!, {r4, pc} |
| |
| mov r0, r4 @ recover arg |
| bl __aeabi_f2lz @ convert float to long |
| ldmfd sp!, {r4, pc} |