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tests: add execution tests

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all but data processing

Signed-off-by: Amneesh Singh <natto@weirdnatto.in>
This commit is contained in:
Amneesh Singh
2023-09-18 18:23:52 +05:30
parent dd9dd5f116
commit fa96a4d09f
31 changed files with 2076 additions and 1265 deletions
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19
src/memory.cc
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@@ -4,11 +4,12 @@
#include "util/log.hh"
#include "util/utils.hh"
#include <bitset>
#include <stdexcept>
using namespace logger;
Memory::Memory(std::array<uint8_t, BIOS_SIZE>&& bios,
std::vector<uint8_t>&& rom) noexcept
std::vector<uint8_t>&& rom)
: bios(std::move(bios))
, board_wram({ 0 })
, chip_wram({ 0 })
@@ -116,18 +117,24 @@ Memory::read_word(size_t address) const {
}
void
Memory::write_word(size_t address, uint32_t halfword) {
Memory::write_word(size_t address, uint32_t word) {
if (address & 0b11)
log_warn("Writing to a non aligned word address");
write(address, halfword & 0xFF);
write(address + 1, halfword >> 8 & 0xFF);
write(address + 2, halfword >> 16 & 0xFF);
write(address + 3, halfword >> 24 & 0xFF);
write(address, word & 0xFF);
write(address + 1, word >> 8 & 0xFF);
write(address + 2, word >> 16 & 0xFF);
write(address + 3, word >> 24 & 0xFF);
}
void
Memory::parse_header() {
if (rom.size() < header.HEADER_SIZE) {
throw std::out_of_range(
"ROM is not large enough to even have a header");
}
// entrypoint
header.entrypoint =
rom[0x00] | rom[0x01] << 8 | rom[0x02] << 16 | rom[0x03] << 24;