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Fix floating ac number bounds check.

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This commit is contained in:
Olaf Seibert 2021-01-22 18:10:36 +01:00
parent 21c994cfcd
commit e720e8a756
1 changed files with 14 additions and 4 deletions
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18
assemble.c
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@ -1628,11 +1628,16 @@ static int assemble(
cp = value->cp;
reg = get_register(value);
if (reg == NO_REG || reg > 4) {
report(stack->top, "Invalid destination register\n");
if (reg == NO_REG || reg > 3) {
report(stack->top, "Invalid destination fp register\n");
reg = 0;
}
/*
* We could check here that the general mode
* is not R6 or R7, but the original Macro11
* doesn't do that either.
*/
word = op->value | mode.type | (reg << 6);
store_word(stack->top, tr, 2, word);
mode_extension(tr, &mode, stack->top);
@ -1651,8 +1656,8 @@ static int assemble(
cp = value->cp;
reg = get_register(value);
if (reg == NO_REG || reg > 4) {
report(stack->top, "Illegal source register\n");
if (reg == NO_REG || reg > 3) {
report(stack->top, "Illegal source fp register\n");
reg = 0;
}
@ -1669,6 +1674,11 @@ static int assemble(
return 0;
}
/*
* We could check here that the general mode
* is not R6 or R7, but the original Macro11
* doesn't do that either.
*/
word = op->value | mode.type | (reg << 6);
store_word(stack->top, tr, 2, word);
mode_extension(tr, &mode, stack->top);