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Intel-Systems: Cleanup and reorganized multibus code

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This commit is contained in:
Bill Beech
2020-02-04 16:24:05 -07:00
parent f01e8900ed
commit a2998ebaf2
28 changed files with 142 additions and 1339 deletions
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10
Intel-Systems/isys8024/isbc8024.c
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@@ -38,11 +38,11 @@
/* function prototypes */
t_stat SBC_config(void);
t_stat SBC_reset (DEVICE *dptr);
uint8 get_mbyte(uint16 addr);
uint16 get_mword(uint16 addr);
void put_mbyte(uint16 addr, uint8 val);
void put_mword(uint16 addr, uint16 val);
t_stat SBC_reset (DEVICE *dptr);
/* external globals */
@@ -131,12 +131,12 @@ uint8 get_mbyte(uint16 addr)
{
/* if local EPROM handle it */
if ((ROM_DISABLE && (i8255_C[0] & 0x20)) || (ROM_DISABLE == 0)) { /* EPROM enabled */
if ((addr >= EPROM_unit.u3) && ((uint16)addr < (EPROM_unit.u3 + EPROM_unit.capac))) {
if ((addr >= EPROM_unit.u3) && ((uint16)addr <= (EPROM_unit.u3 + EPROM_unit.capac))) {
return EPROM_get_mbyte(addr);
}
} /* if local RAM handle it */
if ((RAM_DISABLE && (i8255_C[0] & 0x10)) || (RAM_DISABLE == 0)) { /* RAM enabled */
if ((addr >= RAM_unit.u3) && ((uint16)addr < (RAM_unit.u3 + RAM_unit.capac))) {
if ((addr >= RAM_unit.u3) && ((uint16)addr <= (RAM_unit.u3 + RAM_unit.capac))) {
return RAM_get_mbyte(addr);
}
} /* otherwise, try the multibus */
@@ -162,13 +162,13 @@ void put_mbyte(uint16 addr, uint8 val)
if ((ROM_DISABLE && (i8255_C[0] & 0x20)) || (ROM_DISABLE == 0)) { /* EPROM enabled */
if ((addr >= EPROM_unit.u3) && ((uint16)addr <= (EPROM_unit.u3 + EPROM_unit.capac))) {
sim_printf("Write to R/O memory address %04X from PC=%04X - ignored\n", addr, PCX);
return;
return;
}
} /* if local RAM handle it */
if ((RAM_DISABLE && (i8255_C[0] & 0x10)) || (RAM_DISABLE == 0)) { /* RAM enabled */
if ((addr >= RAM_unit.u3) && ((uint16)addr <= (RAM_unit.u3 + RAM_unit.capac))) {
RAM_put_mbyte(addr, val);
return;
return;
}
} /* otherwise, try the multibus */
multibus_put_mbyte(addr, val);