/* A test of the alternative (redundant) encodings for {inc,dec}{w,l}. */ #include "tests/asm.h" #include <stdio.h> int r1,r2,r3,r4,r5,r6,r7,r8,a1,a2; extern void foo ( void ); asm("\n" VG_SYM(foo) ":\n" "\tpushl $0\n" "\tpopfl\n" "\tmovl " VG_SYM(a1) ",%eax\n" "\tmovl " VG_SYM(a2) ",%edx\n" /* inc %eax */ "\t.byte 0xFF\n" "\t.byte 0xC0\n" "\tmovl %eax," VG_SYM(r1) "\n" "\tpushfl\n" "\tpopl " VG_SYM(r2) "\n" /* inc %dx */ "\t.byte 0x66\n" "\t.byte 0xFF\n" "\t.byte 0xC2\n" "\tmovl %edx," VG_SYM(r3) "\n" "\tpushfl\n" "\tpopl " VG_SYM(r4) "\n" /* dec %edx */ "\t.byte 0xFF\n" "\t.byte 0xCA\n" "\tmovl %edx," VG_SYM(r5) "\n" "\tpushfl\n" "\tpopl " VG_SYM(r6) "\n" /* dec %ax */ "\t.byte 0x66\n" "\t.byte 0xFF\n" "\t.byte 0xC8\n" "\tmovl %eax," VG_SYM(r7) "\n" "\tpushfl\n" "\tpopl " VG_SYM(r8) "\n" "\tret\n" ); int main ( void ) { a1 = 0x77777777; a2 = 0x88888888; r1=r2=r3=r4=r5=r6=r7=r8=0; foo(); printf("0x%08x\n",r1); printf("0x%08x\n",r2); printf("0x%08x\n",r3); printf("0x%08x\n",r4); printf("0x%08x\n",r5); printf("0x%08x\n",r6); printf("0x%08x\n",r7); printf("0x%08x\n",r8); return 0; }