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found bug in schematics, fixed in emu

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This commit is contained in:
aap 2019-02-03 11:40:09 +01:00
parent ef0693e927
commit 3f8f51ffbb
1 changed files with 9 additions and 0 deletions
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9
emu/apr.c
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@ -3,6 +3,8 @@
// Schematics don't have USER IOT implemented fully
#define FIX_USER_IOT
// Schematics have a bug in the divide subroutine
#define FIX_DS
enum Opcode {
FSC = 0132,
@ -1800,7 +1802,14 @@ defpulse(dst6)
defpulse(dst5a)
{
apr->dsf2 = 0; // 6-25
#ifdef FIX_DS
/* we have to ignore the lower sign bit
* for carry propagation */
pulse(apr, apr->c.ar & 0377777777777 ?
&dst6 : &dst8, 100); // 6-25
#else
pulse(apr, apr->c.ar ? &dst6 : &dst8, 100); // 6-25
#endif
}
defpulse(dst5)