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ca65 jmp (abs) wrap warning only applies to 6502, later CPUs do not have this bug

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bbbradsmith 2023-03-07 17:00:38 -05:00
parent c226e58a3c
commit 016b03e356
1 changed files with 3 additions and 2 deletions
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5
src/ca65/instr.c
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@ -1617,11 +1617,12 @@ static void PutJMP (const InsDesc* Ins)
if (EvalEA (Ins, &A)) { if (EvalEA (Ins, &A)) {
/* Check for indirect addressing */ /* Check for indirect addressing */
if (A.AddrModeBit & AM65_ABS_IND) { if (A.AddrModeBit & AM65_ABS_IND && CPU < CPU_65SC02) {
/* Compare the low byte of the expression to 0xFF to check for /* Compare the low byte of the expression to 0xFF to check for
** a page cross. Be sure to use a copy of the expression otherwise ** a page cross. Be sure to use a copy of the expression otherwise
** things will go weird later. ** things will go weird later. This only affects the 6502 CPU,
** and was corrected in 65C02 and later CPUs in this family.
*/ */
ExprNode* E = GenNE (GenByteExpr (CloneExpr (A.Expr)), 0xFF); ExprNode* E = GenNE (GenByteExpr (CloneExpr (A.Expr)), 0xFF);