6502/CLK
1
0
Fork 0
mirror of https://github.com/TomHarte/CLK.git synced 2024-11-22 12:33:29 +00:00
Code Issues Projects Releases Wiki Activity

Ensure did_divu/s are performed even upon divide by zero.

Browse Source
This commit is contained in:
Thomas Harte 2022-05-29 21:18:19 -04:00
parent 7788a109b0
commit 8ffaf1a8e4
1 changed files with 3 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

5
InstructionSets/M68k/Implementation/PerformImplementation.hpp
View File

@ -522,17 +522,18 @@ template <
#define DIV(Type16, Type32, flow_function) { \
status.carry_flag = 0; \
\
const auto dividend = Type32(dest.l); \
const auto divisor = Type32(Type16(src.w)); \
\
if(!divisor) { \
status.negative_flag = status.overflow_flag = 0; \
status.zero_result = 1; \
flow_controller.raise_exception(Exception::IntegerDivideByZero); \
flow_controller.template flow_function<false>(dividend, divisor); \
return; \
} \
\
const auto dividend = Type32(dest.l); \
const auto quotient = dividend / divisor; \
\
if(quotient != Type32(Type16(quotient))) { \
status.overflow_flag = 1; \
flow_controller.template flow_function<true>(dividend, divisor); \