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ignore serial r/w (make Emerald stop dumping thousands of lines to the console)

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This commit is contained in:
Matthew Berry 2021-02-27 13:02:44 -08:00
parent 8c66c9200c
commit 893ab68622
1 changed files with 10 additions and 4 deletions
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14
src/crab/mmio.cr
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@ -30,6 +30,9 @@ class MMIO
@gba.timer.read_io io_addr
elsif 0x130 <= io_addr <= 0x133
@gba.keypad.read_io io_addr
elsif 0x120 <= io_addr <= 0x12F || 0x134 <= io_addr <= 0x1FF
# todo: serial
0_u8
elsif 0x200 <= io_addr <= 0x203 || 0x208 <= io_addr <= 0x209
@gba.interrupts.read_io io_addr
elsif 0x204 <= io_addr <= 0x205
@ -37,6 +40,7 @@ class MMIO
elsif not_used? io_addr
0xFF_u8 # todo what is returned here?
else
# todo: oob reads
puts "Unmapped MMIO read: #{hex_str index.to_u32}".colorize(:red)
0_u8
end
@ -54,6 +58,8 @@ class MMIO
@gba.timer.write_io io_addr, value
elsif 0x130 <= io_addr <= 0x133
@gba.keypad.read_io io_addr
elsif 0x120 <= io_addr <= 0x12F || 0x134 <= io_addr <= 0x1FF
# todo: serial
elsif 0x200 <= io_addr <= 0x203 || 0x208 <= io_addr <= 0x209
@gba.interrupts.write_io io_addr, value
elsif 0x204 <= io_addr <= 0x205
@ -69,10 +75,10 @@ class MMIO
end
def not_used?(io_addr : Int) : Bool
(0x0E0..0x0FE).includes?(io_addr) || (0x110..0x11E).includes?(io_addr) ||
(0x12C..0x12E).includes?(io_addr) || (0x138..0x13E).includes?(io_addr) ||
(0x142..0x14E).includes?(io_addr) || (0x15A..0x1FE).includes?(io_addr) ||
0x206 == io_addr || (0x20A..0x2FF).includes?(io_addr) ||
(0x0E0..0x0FF).includes?(io_addr) || (0x110..0x11F).includes?(io_addr) ||
(0x12C..0x12F).includes?(io_addr) || (0x138..0x13F).includes?(io_addr) ||
(0x142..0x14F).includes?(io_addr) || (0x15A..0x1FF).includes?(io_addr) ||
(0x206..0x207).includes?(io_addr) || (0x20A..0x2FF).includes?(io_addr) ||
(0x302..0x40F).includes?(io_addr) || (0x441..0x7FF).includes?(io_addr) ||
(0x804..0xFFFF).includes?(io_addr)
end