+ else {
+ emitcode ("ldi", "r24,<(%d)", shCount);
+ tlbl = newiTempLabel (NULL);
+ emitcode ("", "L%05d:", tlbl->key);
+ offset = size - 1;
+ while (size--) {
+ if (offset == (AOP_SIZE(result) - 1))
+ emitcode ("asr", "%s", aopGet (AOP (result), offset));
+ else
+ emitcode ("ror", "%s", aopGet (AOP (result), offset));
+ offset--;
+ }
+ emitcode ("dec", "r24");
+ emitcode ("brne", "L%05d", tlbl->key);
+ }
+ goto release;
+ }
+ if (shCount > (size * 8 - 1)) {
+ while (size--)
+ aopPut (AOP (result), zero, offset++);
+ goto release;
+ }
+ /* for unsigned we can much more efficient */
+ switch (size) {
+ case 1:
+ if (!sameRegs (AOP (left), AOP (result)))
+ aopPut (AOP (result), aopGet (AOP (left), 0), 0);
+ if (shCount >= 4) {
+ emitcode ("swap", "%s", aopGet (AOP (result), 0));
+ if (AOP_ISHIGHREG(AOP(result),0)) {
+ emitcode ("andi", "%s,0x0f",aopGet(AOP(result),0));
+ } else {
+ emitcode ("ldi","r24,0x0f");
+ emitcode ("and", "%s,r24",aopGet(AOP(result),0));
+ }
+ shCount -= 4;
+ }
+ while (shCount--)
+ emitcode ("lsr", "%s", aopGet (AOP (result), 0));
+ break;
+ case 2:
+ if (shCount >= 12) {
+ aopPut (AOP (result), aopGet (AOP (left), 1), 0);
+ aopPut (AOP (result), zero, 1);
+ emitcode ("swap", "%s", aopGet (AOP (result), 0));
+ if (AOP_ISHIGHREG(AOP(result),0)) {
+ emitcode ("andi", "%s,0x0f", aopGet (AOP (result), 0));
+ } else {
+ emitcode ("ldi","r24,0x0f");
+ emitcode ("and", "%s,r24",aopGet(AOP(result),0));
+ }
+ shCount -= 12;
+ hByteZ = 1;
+ }
+ if (shCount >= 8) {
+ aopPut (AOP (result), aopGet (AOP (left), 1), 0);
+ aopPut (AOP (result), zero, 1);
+ shCount -= 8;
+ hByteZ = 1;
+ }
+ if (shCount >= 4) {
+ shCount -= 4;
+ if (!sameRegs (AOP (left), AOP (result))) {
+ aopPut (AOP (result), aopGet (AOP (left), 0), 0);
+ aopPut (AOP (result), aopGet (AOP (left), 1), 1);
+ }
+ if (!(AOP_ISHIGHREG(AOP(result),0) && AOP_ISHIGHREG(AOP(result),1))) {
+ emitcode("ldi","r25,0x0f");
+ }
+ emitcode ("mov", "r24,%s", aopGet (AOP (result), 1));
+ emitcode ("andi", "r24,0xf0");
+ emitcode ("swap", "%s", aopGet (AOP (result), 0));
+ if (AOP_ISHIGHREG(AOP(result),0)) {
+ emitcode ("andi", "%s,0x0f", aopGet (AOP (result), 0));
+ } else {
+ emitcode ("and", "%s,r25", aopGet (AOP (result), 0));
+ }
+ emitcode ("or", "%s,r24", aopGet (AOP (result), 0));
+ emitcode ("swap", "%s", aopGet (AOP (result), 1));
+ if (AOP_ISHIGHREG(AOP(result),1)) {
+ emitcode ("andi", "%s,0x0f", aopGet (AOP (result), 1));
+ } else {
+ emitcode ("and", "%s,r24", aopGet (AOP (result), 1));
+ }
+ while (shCount--) {
+ emitcode ("lsr", "%s", aopGet (AOP (result), 1));
+ emitcode ("ror", "%s", aopGet (AOP (result), 0));
+ }
+
+ }
+ if (!hByteZ && !sameRegs (AOP (result), AOP (left))
+ && shCount) {
+ offset = 0;
+ while (size--) {
+ aopPut (AOP (result), aopGet (AOP (left), offset), offset);
+ offset++;
+ }
+ }
+ while (shCount--) {
+ if (hByteZ) {
+ emitcode ("lsr", "%s", aopGet (AOP (result), 0));
+ }
+ else {
+ emitcode ("lsr", "%s", aopGet (AOP (result), 1));
+ emitcode ("ror", "%s", aopGet (AOP (result), 0));
+ }
+ }
+ break;
+
+ case 3:
+ assert ("shifting generic pointer ?\n");
+ break;
+ case 4:
+ /* 32 bits we do only byte boundaries */
+ if (shCount >= 24) {
+ aopPut (AOP (result), aopGet (AOP (left), 3), 0);
+ aopPut (AOP (result), zero, 1);
+ aopPut (AOP (result), zero, 2);
+ aopPut (AOP (result), zero, 3);
+ hByteZ = 3;
+ shCount -= 24;
+ }
+ if (shCount >= 16) {
+ aopPut (AOP (result), aopGet (AOP (left), 3), 1);
+ aopPut (AOP (result), aopGet (AOP (left), 2), 0);
+ aopPut (AOP (result), zero, 2);
+ aopPut (AOP (result), zero, 3);
+ hByteZ = 2;
+ shCount -= 16;
+ }
+ if (shCount >= 8) {
+ aopPut (AOP (result), aopGet (AOP (left), 1), 0);
+ aopPut (AOP (result), aopGet (AOP (left), 2), 1);
+ aopPut (AOP (result), aopGet (AOP (left), 3), 2);
+ aopPut (AOP (result), zero, 3);
+ shCount -= 8;
+ hByteZ = 1;
+ }
+ if (!hByteZ && !sameRegs (AOP (left), AOP (right))) {
+ offset = 0;
+ while (size--) {
+ aopPut (AOP (result),
+ aopGet (AOP (left), offset), offset);
+ offset++;
+ }
+ offset = 0;
+ size = AOP_SIZE (result);
+ }
+ if (shCount) {
+ switch (hByteZ) {
+ case 0:
+ while (shCount--) {
+ emitcode ("lsr", "%s", aopGet (AOP (result), 3));
+ emitcode ("ror", "%s", aopGet (AOP (result), 2));
+ emitcode ("ror", "%s", aopGet (AOP (result), 1));
+ emitcode ("ror", "%s", aopGet (AOP (result), 0));
+ }
+ break;
+ case 1:
+ while (shCount--) {
+ emitcode ("lsr", "%s", aopGet (AOP (result), 2));
+ emitcode ("ror", "%s", aopGet (AOP (result), 1));
+ emitcode ("ror", "%s", aopGet (AOP (result), 0));
+ }
+ break;
+ case 2:
+ while (shCount--) {
+ emitcode ("lsr", "%s", aopGet (AOP (result), 1));
+ emitcode ("ror", "%s", aopGet (AOP (result), 0));
+ }
+ break;
+ case 3:
+ while (shCount--) {
+ emitcode ("lsr", "%s", aopGet (AOP (result), 0));
+ }
+ break;
+ }