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comparison mc-code-powerpc.c @ 189:f53d70110377

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immediate instructions.
author kono
date Mon, 01 Dec 2003 21:18:45 +0900
parents dffcccf8b1cb
children c193120ee2a6
comparison
equal deleted inserted replaced
188:4303255fc3cf 189:f53d70110377
1748 } 1748 }
1749 if(oreg!=creg) free_register(oreg); 1749 if(oreg!=creg) free_register(oreg);
1750 regv[creg]=1; 1750 regv[creg]=1;
1751 } 1751 }
1752 1752
1753 int
1754 code_const_op_p(int op,int v)
1755 {
1756 if (op==BAND||op==DIV||op==UDIV||op==MOD||op==UMOD) return 0;
1757 return (-127<v&&v<128);
1758 }
1759
1760 void
1761 oprtc(int op,int v)
1762 {
1763 char *crn = register_name(creg);
1764
1765 switch(op) {
1766 case LSHIFT:
1767 case ULSHIFT:
1768 printf("\tslwi %s,%s,%d\n",crn,crn,v);
1769 return;
1770 case RSHIFT:
1771 printf("\tsrawi %s,%s,%d\n",crn,crn,v);
1772 return;
1773 case URSHIFT:
1774 printf("\tsrwi %s,%s,%d\n",crn,crn,v);
1775 return;
1776 case ADD:
1777 printf("\taddi %s,%s,lo16(%d)\n",crn,crn,v);
1778 break;
1779 case SUB:
1780 printf("\tsubi %s,%s,lo16(%d)\n",crn,crn,v);
1781 break;
1782 case CMP:
1783 printf("\tcmpwi cr0,%s,lo16(%d)\n",crn,v);
1784 break;
1785 case EOR:
1786 printf("\txori %s,%s,lo16(%d)\n",crn,crn,v);
1787 break;
1788 case BOR:
1789 printf("\tori %s,%s,lo16(%d)\n",crn,crn,v);
1790 break;
1791 case MUL:
1792 printf("\tmulli %s,%s,lo16(%d)\n",crn,crn,v);
1793 break;
1794 case UMUL:
1795 printf("\tmulli %s,%s,lo16(%d)\n",crn,crn,v);
1796 break;
1797 default:
1798 error(-1);
1799 }
1800 }
1753 1801
1754 void 1802 void
1755 shift(char *op, int reg) 1803 shift(char *op, int reg)
1756 { 1804 {
1757 char *crn = register_name(creg); 1805 char *crn = register_name(creg);