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| author | Kartik Agaram <vc@akkartik.com> | 2018-10-05 21:30:22 -0700 |
|---|---|---|
| committer | Kartik Agaram <vc@akkartik.com> | 2018-10-05 21:30:22 -0700 |
| commit | 94ad882e828f83df4a4cc0deab1a10e9d5e54eec (patch) | |
| tree | f51448732674fa8744e8517c4755255afc764b1f /subx/030---operands.cc | |
| parent | 03d50cc83c7c2bebb2b019667b80c1c51f4a8def (diff) | |
| download | mu-94ad882e828f83df4a4cc0deab1a10e9d5e54eec.tar.gz | |
4668
Diffstat (limited to 'subx/030---operands.cc')
| -rw-r--r-- | subx/030---operands.cc | 32 |
1 files changed, 10 insertions, 22 deletions
diff --git a/subx/030---operands.cc b/subx/030---operands.cc index 34953480..196e8556 100644 --- a/subx/030---operands.cc +++ b/subx/030---operands.cc @@ -29,10 +29,7 @@ cerr << " instructions\n"; :(scenario pack_immediate_constants) == 0x1 -# instruction effective address operand displacement immediate -# op subop mod rm32 base index scale r32 -# 1-3 bytes 3 bits 2 bits 3 bits 3 bits 3 bits 2 bits 2 bits 0/1/2/4 bytes 0/1/2/4 bytes - bb 0x2a/imm32 # copy 42 to EBX +bb 0x2a/imm32 +transform: packing instruction 'bb 0x2a/imm32' +transform: instruction after packing: 'bb 2a 00 00 00' +run: copy imm32 0x0000002a to EBX @@ -335,40 +332,31 @@ void transform(const string& text_bytes) { :(scenario pack_imm32_large) == 0x1 -b9 0x080490a7/imm32 # copy to ECX +b9 0x080490a7/imm32 +transform: packing instruction 'b9 0x080490a7/imm32' +transform: instruction after packing: 'b9 a7 90 04 08' :(scenario pack_immediate_constants_hex) == 0x1 -# instruction effective address operand displacement immediate -# op subop mod rm32 base index scale r32 -# 1-3 bytes 3 bits 2 bits 3 bits 3 bits 3 bits 2 bits 2 bits 0/1/2/4 bytes 0/1/2/4 bytes - bb 0x2a/imm32 # copy 42 to EBX -+transform: packing instruction 'bb 0x2a/imm32' -+transform: instruction after packing: 'bb 2a 00 00 00' -+run: copy imm32 0x0000002a to EBX +b9 0x2a/imm32 ++transform: packing instruction 'b9 0x2a/imm32' ++transform: instruction after packing: 'b9 2a 00 00 00' ++run: copy imm32 0x0000002a to ECX :(scenarios transform) :(scenario pack_silently_ignores_non_hex) % Hide_errors = true; == 0x1 -# instruction effective address operand displacement immediate -# op subop mod rm32 base index scale r32 -# 1-3 bytes 3 bits 2 bits 3 bits 3 bits 3 bits 2 bits 2 bits 0/1/2/4 bytes 0/1/2/4 bytes - bb foo/imm32 # copy to EBX -+transform: packing instruction 'bb foo/imm32' +b9 foo/imm32 ++transform: packing instruction 'b9 foo/imm32' # no change (we're just not printing metadata to the trace) -+transform: instruction after packing: 'bb foo' ++transform: instruction after packing: 'b9 foo' :(scenarios run) :(scenario pack_flags_bad_hex) % Hide_errors = true; == 0x1 -# instruction effective address operand displacement immediate -# op subop mod rm32 base index scale r32 -# 1-3 bytes 3 bits 2 bits 3 bits 3 bits 3 bits 2 bits 2 bits 0/1/2/4 bytes 0/1/2/4 bytes - bb 0xfoo/imm32 # copy to EBX +b9 0xfoo/imm32 +error: not a number: 0xfoo //:: helpers |