android_mt6572_jiabo/art/runtime/interpreter/mterp/mips64/unop.S
2025-09-05 16:56:03 +08:00

18 lines
802 B
ArmAsm

%default {"preinstr":""}
/*
* Generic 32-bit unary operation. Provide an "instr" line that
* specifies an instruction that performs "a0 = op a0".
*
* for: int-to-byte, int-to-char, int-to-short,
* not-int, neg-int
*/
/* unop vA, vB */
ext a3, rINST, 12, 4 # a3 <- B
GET_VREG a0, a3 # a0 <- vB
ext a2, rINST, 8, 4 # a2 <- A
$preinstr # optional op
FETCH_ADVANCE_INST 1 # advance rPC, load rINST
$instr # a0 <- op, a0-a3 changed
GET_INST_OPCODE v0 # extract opcode from rINST
SET_VREG a0, a2 # vA <- a0
GOTO_OPCODE v0 # jump to next instruction