diff options
| -rw-r--r-- | tests/test-i386.c | 79 |
1 files changed, 79 insertions, 0 deletions
diff --git a/tests/test-i386.c b/tests/test-i386.c index 866c769e4b..2130bfcabc 100644 --- a/tests/test-i386.c +++ b/tests/test-i386.c @@ -714,6 +714,10 @@ void test_segs(void) long long ldt_table[3]; int res, res2; char tmp; + struct { + uint32_t offset; + uint16_t seg; + } __attribute__((packed)) segoff; ldt.entry_number = 1; ldt.base_addr = (unsigned long)&seg_data1; @@ -772,6 +776,14 @@ void test_segs(void) : "r" (MK_SEL(1)), "r" (&tmp)); printf("DS[1] = %02x\n", res); printf("SS[tmp] = %02x\n", res2); + + segoff.seg = MK_SEL(2); + segoff.offset = 0xabcdef12; + asm volatile("lfs %2, %0\n\t" + "movl %%fs, %1\n\t" + : "=r" (res), "=g" (res2) + : "m" (segoff)); + printf("FS:reg = %04x:%08x\n", res2, res); } /* 16 bit code test */ @@ -812,6 +824,71 @@ void test_code16(void) printf("func3() = 0x%08x\n", res); } +void test_misc(void) +{ + char table[256]; + int res, i; + + for(i=0;i<256;i++) table[i] = 256 - i; + res = 0x12345678; + asm ("xlat" : "=a" (res) : "b" (table), "0" (res)); + printf("xlat: EAX=%08x\n", res); +} + +uint8_t str_buffer[4096]; + +#define TEST_STRING1(OP, size, DF, REP)\ +{\ + int esi, edi, eax, ecx, eflags;\ +\ + esi = (long)(str_buffer + sizeof(str_buffer) / 2);\ + edi = (long)(str_buffer + sizeof(str_buffer) / 2) + 16;\ + eax = 0x12345678;\ + ecx = 17;\ +\ + asm volatile ("pushl $0\n\t"\ + "popf\n\t"\ + DF "\n\t"\ + REP #OP size "\n\t"\ + "cld\n\t"\ + "pushf\n\t"\ + "popl %4\n\t"\ + : "=S" (esi), "=D" (edi), "=a" (eax), "=c" (ecx), "=g" (eflags)\ + : "0" (esi), "1" (edi), "2" (eax), "3" (ecx));\ + printf("%-10s ESI=%08x EDI=%08x EAX=%08x ECX=%08x EFL=%04x\n",\ + REP #OP size, esi, edi, eax, ecx,\ + eflags & (CC_C | CC_P | CC_Z | CC_S | CC_O | CC_A));\ +} + +#define TEST_STRING(OP, REP)\ + TEST_STRING1(OP, "b", "", REP);\ + TEST_STRING1(OP, "w", "", REP);\ + TEST_STRING1(OP, "l", "", REP);\ + TEST_STRING1(OP, "b", "std", REP);\ + TEST_STRING1(OP, "w", "std", REP);\ + TEST_STRING1(OP, "l", "std", REP) + +void test_string(void) +{ + int i; + for(i = 0;i < sizeof(str_buffer); i++) + str_buffer[i] = i + 0x56; + TEST_STRING(stos, ""); + TEST_STRING(stos, "rep "); + TEST_STRING(lods, ""); /* to verify stos */ + TEST_STRING(lods, "rep "); + TEST_STRING(movs, ""); + TEST_STRING(movs, "rep "); + TEST_STRING(lods, ""); /* to verify stos */ + + /* XXX: better tests */ + TEST_STRING(scas, ""); + TEST_STRING(scas, "repz "); + TEST_STRING(scas, "repnz "); + TEST_STRING(cmps, ""); + TEST_STRING(cmps, "repz "); + TEST_STRING(cmps, "repnz "); +} static void *call_end __init_call = NULL; @@ -831,6 +908,8 @@ int main(int argc, char **argv) test_floats(); test_bcd(); test_xchg(); + test_string(); + test_misc(); test_lea(); test_segs(); test_code16(); |