Function PACIA

arch/arm64/disassembler/decode2.c:18974–19049

pacia.xml */

/* pacia.xml */
int PACIA(context *ctx, Instruction *instr)
{
	int rc = DECODE_STATUS_UNMATCHED;
	/* class iclass_general */
	/* sf=1|1|S=0|11010110|opcode2=00001|opcode[5]=0|opcode[4]=0|Z=x|opcode[2:0]=000|Rn=xxxxx|Rd=xxxxx */
	if((INSWORD & 0xFFFFDC00)==0xDAC10000) {
		decode_fields32(ENC_PACIA_64P_DP_1SRC, ctx, instr);
		ctx->source_is_sp = FALSE;
		ctx->d = UINT(ctx->Rd);
		ctx->n = UINT(ctx->Rn);
		if(!HavePACExt()) {
			UNDEFINED;
		}
		if(ctx->Z==0) {
			if(ctx->n==0x1f) {
				ctx->source_is_sp = TRUE;
			}
		}
		else {
			if(ctx->n!=0x1f) {
				UNDEFINED;
			}
		}
		if(ctx->Z==0) OK(ENC_PACIA_64P_DP_1SRC);
		if(ctx->Z==1 && ctx->Rn==0x1f) OK(ENC_PACIZA_64Z_DP_1SRC);
	}
	/* class iclass_system */
	/* 1101010100|L=0|op0=00|op1=011|CRn=0010|CRm=00x1|op2=00x|Rt=11111 */
	if((INSWORD & 0xFFFFFDDF)==0xD503211F) {
		decode_fields32(ENC_PACIA1716_HI_HINTS, ctx, instr);
		ctx->source_is_sp = FALSE;
		if(((ctx->CRm<<3)|ctx->op2)==0x18) {
			ctx->d = 0x1e;
			ctx->n = 0x1f;
		}
		else if(((ctx->CRm<<3)|ctx->op2)==0x19) {
			ctx->d = 0x1e;
			ctx->source_is_sp = TRUE;
			if(HaveBTIExt()) {
				SetBTypeCompatible(BTypeCompatible_PACIXSP());
			}
		}
		else if(((ctx->CRm<<3)|ctx->op2)==8) {
			ctx->d = 0x11;
			ctx->n = 0x10;
		}
		else if(((ctx->CRm<<3)|ctx->op2)==10) {
			SEE /* PACIB */;
		}
		else if(((ctx->CRm<<3)|ctx->op2)==12) {
			SEE /* AUTIA */;
		}
		else if(((ctx->CRm<<3)|ctx->op2)==14) {
			SEE /* AUTIB */;
		}
		else if((((ctx->CRm<<3)|ctx->op2)&0x7e)==0x1a) {
			SEE /* PACIB */;
		}