diff options
Diffstat (limited to 'vm/mterp/armv6t2/unopWide.S')
| -rw-r--r-- | vm/mterp/armv6t2/unopWide.S | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/vm/mterp/armv6t2/unopWide.S b/vm/mterp/armv6t2/unopWide.S new file mode 100644 index 0000000..e0a303e --- /dev/null +++ b/vm/mterp/armv6t2/unopWide.S @@ -0,0 +1,21 @@ +%default {"preinstr":""} + /* + * Generic 64-bit unary operation. Provide an "instr" line that + * specifies an instruction that performs "result = op r0/r1". + * This could be an ARM instruction or a function call. + * + * For: neg-long, not-long, neg-double, long-to-double, double-to-long + */ + /* unop vA, vB */ + mov r3, rINST, lsr #12 @ r3<- B + ubfx r9, rINST, #8, #4 @ r9<- A + add r3, rFP, r3, lsl #2 @ r3<- &fp[B] + add r9, rFP, r9, lsl #2 @ r9<- &fp[A] + ldmia r3, {r0-r1} @ r0/r1<- vAA + FETCH_ADVANCE_INST(1) @ advance rPC, load rINST + $preinstr @ optional op; may set condition codes + $instr @ r0/r1<- op, r2-r3 changed + GET_INST_OPCODE(ip) @ extract opcode from rINST + stmia r9, {r0-r1} @ vAA<- r0/r1 + GOTO_OPCODE(ip) @ jump to next instruction + /* 10-11 instructions */ |