diff options
| author | Paul Oliver <contact@pauloliver.dev> | 2024-02-29 01:50:44 +0100 |
|---|---|---|
| committer | Paul Oliver <contact@pauloliver.dev> | 2024-02-29 01:50:44 +0100 |
| commit | 2dc9d118efb64de6ea54a5a9eb4474f8e5ef3145 (patch) | |
| tree | 74039957b10390da4875d676303a781bd0792e45 /src/evolver.c | |
Initial commit
Diffstat (limited to 'src/evolver.c')
| -rw-r--r-- | src/evolver.c | 125 |
1 files changed, 125 insertions, 0 deletions
diff --git a/src/evolver.c b/src/evolver.c new file mode 100644 index 0000000..ba043a3 --- /dev/null +++ b/src/evolver.c @@ -0,0 +1,125 @@ +#include <assert.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <time.h>
+#include "types.h"
+#include "instset.h"
+#include "memory.h"
+#include "evolver.h"
+
+sbool g_isInit;
+sword g_lastAddress;
+sbyte g_lastInst;
+sword g_state[4];
+
+void
+se_init(void)
+{
+ assert(!g_isInit);
+ srand((unsigned)time(NULL));
+ g_state[0] = rand();
+ g_state[1] = rand();
+ g_state[2] = rand();
+ g_state[3] = rand();
+ g_isInit = STRUE;
+}
+
+void
+se_quit(void)
+{
+ assert(g_isInit);
+ g_isInit = SFALSE;
+ g_lastAddress = 0;
+ g_lastInst = 0;
+ g_state[0] = 0;
+ g_state[1] = 0;
+ g_state[2] = 0;
+ g_state[3] = 0;
+}
+
+void
+se_load(FILE *file)
+{
+ assert(!g_isInit);
+ assert(file);
+ fread(&g_isInit, sizeof(sbool), 1, file);
+ fread(&g_lastAddress, sizeof(sword), 1, file);
+ fread(&g_lastInst, sizeof(sbyte), 1, file);
+ fread(g_state, sizeof(sword), 4, file);
+}
+
+void
+se_save(FILE *file)
+{
+ assert(g_isInit);
+ assert(file);
+ fwrite(&g_isInit, sizeof(sbool), 1, file);
+ fwrite(&g_lastAddress, sizeof(sword), 1, file);
+ fwrite(&g_lastInst, sizeof(sbyte), 1, file);
+ fwrite(g_state, sizeof(sword), 4, file);
+}
+
+sbool
+se_isInit(void)
+{
+ return g_isInit;
+}
+
+sword
+se_getLastAddress(void)
+{
+ return g_lastAddress;
+}
+
+sbyte
+se_getLastInst(void)
+{
+ assert(si_isInst(g_lastInst));
+ return g_lastInst;
+}
+
+sword
+se_getState(sword eidx)
+{
+ assert(eidx < 4);
+ return g_state[eidx];
+}
+
+void
+se_setState(sword eidx, sword state)
+{
+ assert(g_isInit);
+ assert(eidx < 4);
+ g_state[eidx] = state;
+}
+
+static sword
+generateRandomNumber(void)
+{
+ sword s;
+ sword t;
+ assert(g_isInit);
+ t = g_state[3];
+ t ^= t << 11;
+ t ^= t >> 8;
+ g_state[3] = g_state[2];
+ g_state[2] = g_state[1];
+ g_state[1] = g_state[0];
+ s = g_state[0];
+ t ^= s;
+ t ^= s >> 19;
+ g_state[0] = t;
+ return t;
+}
+
+void
+se_cycle(void)
+{
+ assert(g_isInit);
+ g_lastAddress = generateRandomNumber();
+ g_lastInst = (sbyte)(generateRandomNumber() % SINST_COUNT);
+
+ if (sm_isValidAt(g_lastAddress)) {
+ sm_setInstAt(g_lastAddress, (sbyte)g_lastInst);
+ }
+}
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