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

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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
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5
InstructionSets/M68k/Implementation/PerformImplementation.hpp
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@@ -522,17 +522,18 @@ template <
#define DIV(Type16, Type32, flow_function) { \ #define DIV(Type16, Type32, flow_function) { \
status.carry_flag = 0; \ status.carry_flag = 0; \
\ \
const auto dividend = Type32(dest.l); \
const auto divisor = Type32(Type16(src.w)); \ const auto divisor = Type32(Type16(src.w)); \
\
if(!divisor) { \ if(!divisor) { \
status.negative_flag = status.overflow_flag = 0; \ status.negative_flag = status.overflow_flag = 0; \
status.zero_result = 1; \ status.zero_result = 1; \
flow_controller.raise_exception(Exception::IntegerDivideByZero); \ flow_controller.raise_exception(Exception::IntegerDivideByZero); \
flow_controller.template flow_function<false>(dividend, divisor); \
return; \ return; \
} \ } \
\ \
const auto dividend = Type32(dest.l); \
const auto quotient = dividend / divisor; \ const auto quotient = dividend / divisor; \
\
if(quotient != Type32(Type16(quotient))) { \ if(quotient != Type32(Type16(quotient))) { \
status.overflow_flag = 1; \ status.overflow_flag = 1; \
flow_controller.template flow_function<true>(dividend, divisor); \ flow_controller.template flow_function<true>(dividend, divisor); \