diff options
Diffstat (limited to 'sim/rl78/mem.c')
| -rw-r--r-- | sim/rl78/mem.c | 18 |
1 files changed, 14 insertions, 4 deletions
diff --git a/sim/rl78/mem.c b/sim/rl78/mem.c index 8d95199..f40d2c1 100644 --- a/sim/rl78/mem.c +++ b/sim/rl78/mem.c @@ -63,6 +63,18 @@ mem_rom_size (int rom_bytes) rom_limit = rom_bytes; } +int mirror_rom_base = 0x01000; +int mirror_ram_base = 0xf1000; +int mirror_length = 0x7000; + +void +mem_set_mirror (int rom_base, int ram_base, int length) +{ + mirror_rom_base = rom_base; + mirror_ram_base = ram_base; + mirror_length = length; +} + /* ---------------------------------------------------------------------- */ /* Note: the RL78 memory map has a few surprises. For starters, part of the first 64k is mapped to the last 64k, depending on an SFR bit @@ -92,13 +104,11 @@ static int address_mapping (int address) { address &= MASK; - if (address >= 0xf1000 && address < ram_base) + if (address >= mirror_ram_base && address < mirror_ram_base + mirror_length) { - address &= 0xffff; - tprintf ("&"); + address = address - mirror_ram_base + mirror_rom_base; if (memory[RL78_SFR_PMC] & 1) { - tprintf ("|"); address |= 0x10000; } last_addr_was_mirror = 1; |