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107 lines
3.3 KiB
C
107 lines
3.3 KiB
C
#include <criterion/criterion.h>
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#include "apple2.h"
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#include "apple2.mem.h"
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static apple2 *mach = NULL;
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static void
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setup()
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{
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mach = apple2_create(100, 100);
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apple2_mem_map(mach);
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vm_segment_set_map_machine(mach);
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}
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static void
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teardown()
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{
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apple2_free(mach);
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vm_segment_set_map_machine(NULL);
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}
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TestSuite(apple2_mem, .init = setup, .fini = teardown);
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Test(apple2_mem, map)
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{
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// mach already had the mem_map function run, so we just need to
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// test the results.
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size_t addr;
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for (addr = APPLE2_BANK_OFFSET; addr < MOS6502_MEMSIZE; addr++) {
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cr_assert_eq(mach->memory->read_table[addr], apple2_mem_read_bank);
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cr_assert_eq(mach->memory->write_table[addr], apple2_mem_write_bank);
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}
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}
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Test(apple2_mem, read_bank)
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{
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vm_8bit val;
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// Test that setting a value in the rom segment is returned to us
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// when addressing from main memory
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mach->memory_mode = MEMORY_BANK_ROM;
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val = 123;
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vm_segment_set(mach->rom, 0x77, val);
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val = vm_segment_get(mach->rom, 0x77);
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cr_assert_eq(vm_segment_get(mach->memory, 0xD077), val);
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// In RAM1 bank mode, setting a value in memory should return thaty
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// value in memory... but, as a twist, also check that the value is
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// not set in ROM nor in RAM2.
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val = 222;
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mach->memory_mode = MEMORY_BANK_RAM1;
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vm_segment_set(mach->memory, 0xD077, val);
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cr_assert_eq(vm_segment_get(mach->memory, 0xD077), val);
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cr_assert_neq(vm_segment_get(mach->rom, 0x77), val);
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cr_assert_neq(vm_segment_get(mach->ram2, 0x77), val);
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// Finally, in RAM2 bank mode, we test similarly to ROM mode. Set
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// the value directly in ram2 and see if it's there when addressing
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// from main memory.
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val = 111;
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mach->memory_mode = MEMORY_BANK_RAM2;
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vm_segment_set(mach->ram2, 0x77, val);
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cr_assert_eq(vm_segment_get(mach->memory, 0xD077), val);
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}
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/*
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* The write_bank test will look a bit similar to the read_bank one,
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* except in logic it should be written somewhat as an inverse. That is,
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* we want our writes to all go to memory, and double-check that the
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* right location is being updated (or not being updated).
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*/
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Test(apple2_mem, write_bank)
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{
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vm_8bit right, wrong;
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// In BANK_ROM mode, we expect that updates to ROM will never be
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// successful (after all, it wouldn't be read-only memory if they
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// were).
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right = 123;
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wrong = 222;
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mach->memory_mode = MEMORY_BANK_ROM;
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vm_segment_set(mach->rom, 0x77, right);
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vm_segment_set(mach->memory, 0xD077, wrong);
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cr_assert_eq(vm_segment_get(mach->rom, 0x77), right);
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cr_assert_eq(vm_segment_get(mach->memory, 0xD077), right);
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// RAM1 is the main bank; it's all 64k RAM in one chunk.
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right = 111;
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wrong = 232;
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mach->memory_mode = MEMORY_BANK_RAM1;
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vm_segment_set(mach->memory, 0xD078, right);
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vm_segment_set(mach->ram2, 0x78, wrong);
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cr_assert_eq(vm_segment_get(mach->memory, 0xD078), right);
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cr_assert_eq(vm_segment_get(mach->ram2, 0x78), wrong);
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// RAM2 is most of the 64k, except the first 4k of the last 12
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// ($D000..$DFFF) is in ram2.
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right = 210;
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wrong = 132;
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mach->memory_mode = MEMORY_BANK_RAM2;
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vm_segment_set(mach->ram2, 0x73, wrong);
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vm_segment_set(mach->memory, 0xD073, right);
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cr_assert_eq(vm_segment_get(mach->ram2, 0x73), right);
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}
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