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fixed a parameter range check bug in a compiler.

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fixed a wrong goto label location for send_message
This commit is contained in:
hyunghwan.chung
2015-12-27 10:19:36 +00:00
parent 649a78472b
commit fff2af4762
4 changed files with 229 additions and 187 deletions
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4
stix/lib/comp.c
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@ -1659,6 +1659,7 @@ static int emit_single_param_instruction (stix_t* stix, int cmd, stix_oow_t para
case BCODE_PUSH_LITERAL_0:
if (param_1 < 8)
{
/* low 3 bits to hold the parameter */
bc = (stix_oob_t)(cmd & 0xF8) | (stix_oob_t)param_1;
goto write_short;
}
@ -1678,6 +1679,7 @@ static int emit_single_param_instruction (stix_t* stix, int cmd, stix_oow_t para
case BCODE_JUMP_IF_FALSE_0:
if (param_1 < 4)
{
/* low 2 bits to hold the parameter */
bc = (stix_oob_t)(cmd & 0xFC) | (stix_oob_t)param_1;
goto write_short;
}
@ -1730,7 +1732,7 @@ static int emit_double_param_instruction (stix_t* stix, int cmd, stix_oow_t para
case BCODE_POP_INTO_OBJVAR_0:
case BCODE_SEND_MESSAGE_0:
case BCODE_SEND_MESSAGE_TO_SUPER_0:
if (param_1 < 8 && param_2 < 0xFF)
if (param_1 < 4 && param_2 < 0xFF)
{
/* low 2 bits of the instruction code is the first parameter */
bc = (stix_oob_t)(cmd & 0xFC) | (stix_oob_t)param_1;