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Add test for write_bank

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Peter Evans 2018-01-04 19:34:15 -06:00
parent d7ea991127
commit 45f5975cdf
1 changed files with 36 additions and 0 deletions
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36
tests/apple2.mem.c
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@ -65,6 +65,42 @@ Test(apple2_mem, read_bank)
cr_assert_eq(vm_segment_get(mach->memory, 0xD077), val);
}
/*
* The write_bank test will look a bit similar to the read_bank one,
* except in logic it should be written somewhat as an inverse. That is,
* we want our writes to all go to memory, and double-check that the
* right location is being updated (or not being updated).
*/
Test(apple2_mem, write_bank)
{
vm_8bit right, wrong;
// In BANK_ROM mode, we expect that updates to ROM will never be
// successful (after all, it wouldn't be read-only memory if they
// were).
right = 123;
wrong = 222;
mach->memory_mode = MEMORY_BANK_ROM;
vm_segment_set(mach->rom, 0x77, right);
vm_segment_set(mach->memory, 0xD077, wrong);
cr_assert_eq(vm_segment_get(mach->rom, 0x77), right);
cr_assert_eq(vm_segment_get(mach->memory, 0xD077), right);
// RAM1 is the main bank; it's all 64k RAM in one chunk.
right = 111;
wrong = 232;
mach->memory_mode = MEMORY_BANK_RAM1;
vm_segment_set(mach->memory, 0xD078, right);
vm_segment_set(mach->ram2, 0x78, wrong);
cr_assert_eq(vm_segment_get(mach->memory, 0xD078), right);
cr_assert_eq(vm_segment_get(mach->ram2, 0x78), wrong);
// RAM2 is most of the 64k, except the first 4k of the last 12
// ($D000..$DFFF) is in ram2.
right = 210;
wrong = 132;
mach->memory_mode = MEMORY_BANK_RAM2;
vm_segment_set(mach->ram2, 0x73, wrong);
vm_segment_set(mach->memory, 0xD073, right);
cr_assert_eq(vm_segment_get(mach->ram2, 0x73), right);
}