25 lines
731 B
ArmAsm
25 lines
731 B
ArmAsm
%default {"result":"","rem":"0"}
|
|
/*
|
|
* 32-bit div/rem "lit8" binary operation. Handles special case of
|
|
* op0=minint & op1=-1
|
|
*/
|
|
/* div/rem/lit8 vAA, vBB, #+CC */
|
|
movzbq 2(rPC), %rax # eax <- BB
|
|
movsbl 3(rPC), %ecx # ecx <- ssssssCC
|
|
GET_VREG %eax, %rax # eax <- rBB
|
|
testl %ecx, %ecx
|
|
je common_errDivideByZero
|
|
cmpl $$-1, %ecx
|
|
je 2f
|
|
cdq # rax <- sign-extended of eax
|
|
idivl %ecx
|
|
1:
|
|
SET_VREG $result, rINSTq # vA <- result
|
|
ADVANCE_PC_FETCH_AND_GOTO_NEXT 2
|
|
2:
|
|
.if $rem
|
|
xorl $result, $result
|
|
.else
|
|
negl $result
|
|
.endif
|
|
jmp 1b
|