added code16 tests
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@37 c046a42c-6fe2-441c-8c8c-71466251a162
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bellard
parent
04369ff2f5
commit
e591824733
@ -20,8 +20,9 @@ test2: test2.c
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$(CC) $(CFLAGS) $(LDFLAGS) -o $@ $<
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# i386 emulation test (test various opcodes) */
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test-i386: test-i386.c test-i386.h test-i386-shift.h test-i386-muldiv.h
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$(CC) $(CFLAGS) $(LDFLAGS) -static -o $@ $< -lm
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test-i386: test-i386.c test-i386-code16.S \
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test-i386.h test-i386-shift.h test-i386-muldiv.h
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$(CC) $(CFLAGS) $(LDFLAGS) -static -o $@ test-i386.c test-i386-code16.S -lm
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test: test-i386
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ifeq ($(ARCH),i386)
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80
tests/test-i386-code16.S
Normal file
80
tests/test-i386-code16.S
Normal file
@ -0,0 +1,80 @@
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.code16
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.globl code16_start
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.globl code16_end
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CS_SEG = 0xf
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code16_start:
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.globl code16_func1
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/* basic test */
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code16_func1 = . - code16_start
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mov $1, %eax
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data32 lret
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/* test push/pop in 16 bit mode */
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.globl code16_func2
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code16_func2 = . - code16_start
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xor %eax, %eax
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mov $0x12345678, %ebx
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movl %esp, %ecx
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push %bx
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subl %esp, %ecx
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pop %ax
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data32 lret
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/* test various jmp opcodes */
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.globl code16_func3
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code16_func3 = . - code16_start
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jmp 1f
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nop
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1:
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mov $4, %eax
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mov $0x12345678, %ebx
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xor %bx, %bx
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jz 2f
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add $2, %ax
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2:
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call myfunc
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lcall $CS_SEG, $(myfunc2 - code16_start)
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ljmp $CS_SEG, $(myjmp1 - code16_start)
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myjmp1_next:
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cs lcall myfunc2_addr - code16_start
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cs ljmp myjmp2_addr - code16_start
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myjmp2_next:
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data32 lret
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myfunc2_addr:
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.short myfunc2 - code16_start
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.short CS_SEG
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myjmp2_addr:
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.short myjmp2 - code16_start
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.short CS_SEG
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myjmp1:
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add $8, %ax
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jmp myjmp1_next
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myjmp2:
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add $16, %ax
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jmp myjmp2_next
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myfunc:
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add $1, %ax
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ret
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myfunc2:
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add $4, %ax
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lret
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code16_end:
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@ -635,6 +635,65 @@ void test_bcd(void)
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TEST_BCD(aad, 0x12340407, CC_A, (CC_C | CC_P | CC_Z | CC_S | CC_O | CC_A));
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}
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#define TEST_XCHG(op, size, opconst)\
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{\
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int op0, op1;\
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op0 = 0x12345678;\
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op1 = 0xfbca7654;\
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asm(#op " %" size "0, %" size "1" \
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: "=q" (op0), opconst (op1) \
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: "0" (op0), "1" (op1));\
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printf("%-10s A=%08x B=%08x\n",\
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#op, op0, op1);\
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}
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#define TEST_CMPXCHG(op, size, opconst, eax)\
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{\
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int op0, op1;\
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op0 = 0x12345678;\
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op1 = 0xfbca7654;\
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asm(#op " %" size "0, %" size "1" \
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: "=q" (op0), opconst (op1) \
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: "0" (op0), "1" (op1), "a" (eax));\
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printf("%-10s EAX=%08x A=%08x C=%08x\n",\
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#op, eax, op0, op1);\
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}
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void test_xchg(void)
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{
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TEST_XCHG(xchgl, "", "=q");
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TEST_XCHG(xchgw, "w", "=q");
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TEST_XCHG(xchgb, "b", "=q");
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TEST_XCHG(xchgl, "", "=m");
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TEST_XCHG(xchgw, "w", "=m");
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TEST_XCHG(xchgb, "b", "=m");
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TEST_XCHG(xaddl, "", "=q");
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TEST_XCHG(xaddw, "w", "=q");
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TEST_XCHG(xaddb, "b", "=q");
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TEST_XCHG(xaddl, "", "=m");
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TEST_XCHG(xaddw, "w", "=m");
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TEST_XCHG(xaddb, "b", "=m");
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TEST_CMPXCHG(cmpxchgl, "", "=q", 0xfbca7654);
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TEST_CMPXCHG(cmpxchgw, "w", "=q", 0xfbca7654);
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TEST_CMPXCHG(cmpxchgb, "b", "=q", 0xfbca7654);
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TEST_CMPXCHG(cmpxchgl, "", "=q", 0xfffefdfc);
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TEST_CMPXCHG(cmpxchgw, "w", "=q", 0xfffefdfc);
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TEST_CMPXCHG(cmpxchgb, "b", "=q", 0xfffefdfc);
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TEST_CMPXCHG(cmpxchgl, "", "=m", 0xfbca7654);
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TEST_CMPXCHG(cmpxchgw, "w", "=m", 0xfbca7654);
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TEST_CMPXCHG(cmpxchgb, "b", "=m", 0xfbca7654);
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TEST_CMPXCHG(cmpxchgl, "", "=m", 0xfffefdfc);
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TEST_CMPXCHG(cmpxchgw, "w", "=m", 0xfffefdfc);
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TEST_CMPXCHG(cmpxchgb, "b", "=m", 0xfffefdfc);
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}
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/**********************************************/
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/* segmentation tests */
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@ -646,7 +705,7 @@ _syscall3(int, modify_ldt, int, func, void *, ptr, unsigned long, bytecount)
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uint8_t seg_data1[4096];
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uint8_t seg_data2[4096];
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#define MK_SEL(n) (((n) << 3) | 4)
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#define MK_SEL(n) (((n) << 3) | 7)
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/* NOTE: we use Linux modify_ldt syscall */
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void test_segs(void)
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@ -715,65 +774,45 @@ void test_segs(void)
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printf("SS[tmp] = %02x\n", res2);
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}
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#define TEST_XCHG(op, size, opconst)\
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{\
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int op0, op1;\
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op0 = 0x12345678;\
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op1 = 0xfbca7654;\
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asm(#op " %" size "0, %" size "1" \
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: "=q" (op0), opconst (op1) \
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: "0" (op0), "1" (op1));\
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printf("%-10s A=%08x B=%08x\n",\
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#op, op0, op1);\
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}
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/* 16 bit code test */
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extern char code16_start, code16_end;
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extern char code16_func1;
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extern char code16_func2;
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extern char code16_func3;
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#define TEST_CMPXCHG(op, size, opconst, eax)\
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{\
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int op0, op1;\
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op0 = 0x12345678;\
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op1 = 0xfbca7654;\
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asm(#op " %" size "0, %" size "1" \
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: "=q" (op0), opconst (op1) \
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: "0" (op0), "1" (op1), "a" (eax));\
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printf("%-10s EAX=%08x A=%08x C=%08x\n",\
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#op, eax, op0, op1);\
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}
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void test_xchg(void)
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void test_code16(void)
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{
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TEST_XCHG(xchgl, "", "=q");
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TEST_XCHG(xchgw, "w", "=q");
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TEST_XCHG(xchgb, "b", "=q");
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struct modify_ldt_ldt_s ldt;
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int res, res2;
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TEST_XCHG(xchgl, "", "=m");
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TEST_XCHG(xchgw, "w", "=m");
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TEST_XCHG(xchgb, "b", "=m");
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/* build a code segment */
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ldt.entry_number = 1;
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ldt.base_addr = (unsigned long)&code16_start;
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ldt.limit = &code16_end - &code16_start;
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ldt.seg_32bit = 0;
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ldt.contents = MODIFY_LDT_CONTENTS_CODE;
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ldt.read_exec_only = 0;
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ldt.limit_in_pages = 0;
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ldt.seg_not_present = 0;
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ldt.useable = 1;
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modify_ldt(1, &ldt, sizeof(ldt)); /* write ldt entry */
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TEST_XCHG(xaddl, "", "=q");
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TEST_XCHG(xaddw, "w", "=q");
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TEST_XCHG(xaddb, "b", "=q");
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TEST_XCHG(xaddl, "", "=m");
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TEST_XCHG(xaddw, "w", "=m");
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TEST_XCHG(xaddb, "b", "=m");
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TEST_CMPXCHG(cmpxchgl, "", "=q", 0xfbca7654);
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TEST_CMPXCHG(cmpxchgw, "w", "=q", 0xfbca7654);
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TEST_CMPXCHG(cmpxchgb, "b", "=q", 0xfbca7654);
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TEST_CMPXCHG(cmpxchgl, "", "=q", 0xfffefdfc);
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TEST_CMPXCHG(cmpxchgw, "w", "=q", 0xfffefdfc);
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TEST_CMPXCHG(cmpxchgb, "b", "=q", 0xfffefdfc);
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TEST_CMPXCHG(cmpxchgl, "", "=m", 0xfbca7654);
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TEST_CMPXCHG(cmpxchgw, "w", "=m", 0xfbca7654);
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TEST_CMPXCHG(cmpxchgb, "b", "=m", 0xfbca7654);
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TEST_CMPXCHG(cmpxchgl, "", "=m", 0xfffefdfc);
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TEST_CMPXCHG(cmpxchgw, "w", "=m", 0xfffefdfc);
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TEST_CMPXCHG(cmpxchgb, "b", "=m", 0xfffefdfc);
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/* call the first function */
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asm volatile ("lcall %1, %2"
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: "=a" (res)
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: "i" (MK_SEL(1)), "i" (&code16_func1): "memory", "cc");
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printf("func1() = 0x%08x\n", res);
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asm volatile ("lcall %2, %3"
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: "=a" (res), "=c" (res2)
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: "i" (MK_SEL(1)), "i" (&code16_func2): "memory", "cc");
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printf("func2() = 0x%08x spdec=%d\n", res, res2);
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asm volatile ("lcall %1, %2"
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: "=a" (res)
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: "i" (MK_SEL(1)), "i" (&code16_func3): "memory", "cc");
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printf("func3() = 0x%08x\n", res);
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}
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static void *call_end __init_call = NULL;
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int main(int argc, char **argv)
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@ -794,5 +833,6 @@ int main(int argc, char **argv)
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test_xchg();
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test_lea();
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test_segs();
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test_code16();
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return 0;
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}
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