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hphybrid: access to top half of base page fixed

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fulivi 2015-12-03 11:14:53 +01:00
parent 43a9b8a53f
commit 92b3373e96
1 changed files with 5 additions and 0 deletions
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5
src/devices/cpu/hphybrid/hphybrid.cpp
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@ -1195,6 +1195,11 @@ UINT32 hp_5061_3001_cpu_device::add_mae(aec_cases_t aec_case , UINT16 addr)
UINT16 bsc_reg;
bool top_half = BIT(addr , 15) != 0;
// Detect accesses to top half of base page
if ((addr & 0xfe00) == 0xfe00) {
aec_case = AEC_CASE_B;
}
switch (aec_case) {
case AEC_CASE_A:
bsc_reg = top_half ? HP_REG_R34_ADDR : HP_REG_R33_ADDR;