From 8d5d730269cc94fa8d5caed0e1996e3d94be25d1 Mon Sep 17 00:00:00 2001 From: Flavian Kaufmann Date: Sun, 5 May 2024 10:27:21 +0200 Subject: added register file --- gentestvec/gentestvec_register_file.c | 48 +++++++++++++++++++++++++++++++++++ 1 file changed, 48 insertions(+) create mode 100644 gentestvec/gentestvec_register_file.c (limited to 'gentestvec') diff --git a/gentestvec/gentestvec_register_file.c b/gentestvec/gentestvec_register_file.c new file mode 100644 index 0000000..2533772 --- /dev/null +++ b/gentestvec/gentestvec_register_file.c @@ -0,0 +1,48 @@ +#include +#include +#include +#include + +uint32_t registers[32]; + +uint32_t read_reg(uint32_t addr) { return addr == 0 ? 0 : registers[addr]; } + +void write_reg(uint32_t addr, uint32_t data, bool we) { + if (addr != 0 && we) + registers[addr] = data; +} + +void test(uint32_t addr_rs0, uint32_t addr_rs1, uint32_t addr_rd2, + uint32_t data_rd2, bool we) { + write_reg(addr_rd2, data_rd2, we); + uint32_t data_rs0 = read_reg(addr_rs0); + uint32_t data_rs1 = read_reg(addr_rs1); + printf("%08X_%08X__%08X_%08X__%08X_%08X_%01X\n", addr_rs0, data_rs0, addr_rs1, + data_rs1, addr_rd2, data_rd2, we); +} + +void tests(int num) { + for (int i = 0; i < num; ++i) { + uint32_t addr_rs0 = ((uint32_t)((rand() << 16) | rand())) % 32; + uint32_t addr_rs1 = ((uint32_t)((rand() << 16) | rand())) % 32; + uint32_t addr_rd2 = ((uint32_t)((rand() << 16) | rand())) % 32; + uint32_t data_rd2 = ((uint32_t)((rand() << 16) | rand())); + bool we = ((uint32_t)rand()) % 2; + test(addr_rs0, addr_rs1, addr_rd2, data_rd2, we); + } +} + +int main(int argc, const char *argv[]) { + srand(time(NULL)); + for (int i = 0; i < 32; ++i) + registers[0] = 0; + + for (int i = 0; i < 32; ++i) + test(i, i, 0, 0, false); + + for (int i = 0; i < 32; ++i) + test(i, i, i, 0xffffffff, true); + + tests(1000); + return 0; +} -- cgit v1.2.3