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py: Allow x86-64 to mov r16 to rm16 with extended src reg. 

Fixes bug with x86-64 viper ptr16.
This commit is contained in:
Damien George 2014-09-29 22:44:18 +01:00
parent dfef4249eb
commit 1c6a1dc740
1 changed files with 5 additions and 2 deletions
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7
py/asmx64.c
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@ -311,9 +311,12 @@ void asm_x64_mov_r8_to_disp(asm_x64_t *as, int src_r64, int dest_r64, int dest_d
}
void asm_x64_mov_r16_to_disp(asm_x64_t *as, int src_r64, int dest_r64, int dest_disp) {
assert(src_r64 < 8);
assert(dest_r64 < 8);
asm_x64_write_byte_2(as, OP_SIZE_PREFIX, OPCODE_MOV_R64_TO_RM64);
if (src_r64 < 8) {
asm_x64_write_byte_2(as, OP_SIZE_PREFIX, OPCODE_MOV_R64_TO_RM64);
} else {
asm_x64_write_byte_3(as, OP_SIZE_PREFIX, REX_PREFIX | REX_R, OPCODE_MOV_R64_TO_RM64);
}
asm_x64_write_r64_disp(as, src_r64, dest_r64, dest_disp);
}