diff options
| author | kaf24@firebug.cl.cam.ac.uk <kaf24@firebug.cl.cam.ac.uk> | 2005-12-21 14:29:23 +0100 |
|---|---|---|
| committer | kaf24@firebug.cl.cam.ac.uk <kaf24@firebug.cl.cam.ac.uk> | 2005-12-21 14:29:23 +0100 |
| commit | c19d7d74307693cd3c7e21ffe13747e1cd021066 (patch) | |
| tree | fcb063df0fc6481980ad73bd754faca8a8fb29e9 /tools/tests | |
| parent | 2eb236c17e09007ca172219cebeb9c16a73cc3b2 (diff) | |
| download | xen-c19d7d74307693cd3c7e21ffe13747e1cd021066.tar.gz xen-c19d7d74307693cd3c7e21ffe13747e1cd021066.tar.bz2 xen-c19d7d74307693cd3c7e21ffe13747e1cd021066.zip | |
Add support for MOVSX/MOVSXD/MOVZX (move-with-extend)
instructions to the generic x86 emulator. Also add
preliminary support for 16-bit addressing: decode the
ModR/M byte properly but still need to access and update
implicit memory operands (esp,esi,edi) with correct width.
Work is also needed to support real-mode addressing.
Signed-off-by: Keir Fraser <keir@xensource.com>
Diffstat (limited to 'tools/tests')
| -rw-r--r-- | tools/tests/Makefile | 2 | ||||
| -rw-r--r-- | tools/tests/test_x86_emulator.c | 30 |
2 files changed, 32 insertions, 0 deletions
diff --git a/tools/tests/Makefile b/tools/tests/Makefile index 3e8962a714..015e8ae256 100644 --- a/tools/tests/Makefile +++ b/tools/tests/Makefile @@ -7,6 +7,8 @@ TARGET := test_x86_emulator CC := gcc CFLAGS := -O2 -Wall -Werror -D__TEST_HARNESS__ +all: $(TARGET) + $(TARGET): x86_emulate.o test_x86_emulator.o $(CC) -o $@ $^ diff --git a/tools/tests/test_x86_emulator.c b/tools/tests/test_x86_emulator.c index 69989bc776..f1c1a51583 100644 --- a/tools/tests/test_x86_emulator.c +++ b/tools/tests/test_x86_emulator.c @@ -254,6 +254,36 @@ int main(int argc, char **argv) goto fail; printf("okay\n"); + printf("%-40s", "Testing movsxbd (%%eax),%%ecx..."); + instr[0] = 0x0f; instr[1] = 0xbe; instr[2] = 0x08; + regs.eip = (unsigned long)&instr[0]; + regs.ecx = 0x12345678; + cr2 = (unsigned long)&res; + res = 0x82; + rc = x86_emulate_memop(®s, cr2, &emulops, 4); + if ( (rc != 0) || + (res != 0x82) || + (regs.ecx != 0xFFFFFF82) || + ((regs.eflags&0x240) != 0x200) || + (regs.eip != (unsigned long)&instr[3]) ) + goto fail; + printf("okay\n"); + + printf("%-40s", "Testing movzxwd (%%eax),%%ecx..."); + instr[0] = 0x0f; instr[1] = 0xb7; instr[2] = 0x08; + regs.eip = (unsigned long)&instr[0]; + regs.ecx = 0x12345678; + cr2 = (unsigned long)&res; + res = 0x1234aa82; + rc = x86_emulate_memop(®s, cr2, &emulops, 4); + if ( (rc != 0) || + (res != 0x1234aa82) || + (regs.ecx != 0xaa82) || + ((regs.eflags&0x240) != 0x200) || + (regs.eip != (unsigned long)&instr[3]) ) + goto fail; + printf("okay\n"); + return 0; fail: |