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qemu-e2k
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e2k: do not use wreg pointer for register spill/fill

This commit is contained in:
Denis Drakhnia 2024-01-15 16:47:04 +02:00
parent a3ede2fce9
commit b3a68870d5
1 changed files with 14 additions and 14 deletions
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28
target/e2k/helper.c
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@ -49,19 +49,19 @@ static void ps_spill(CPUE2KState *env, int n, bool fx)
if (env->version >= 5) {
for (int i = 0; i < n; i++, index += 16) {
ps_write(env, env->wreg[i].lo, env->wtag[i], index);
ps_write(env, env->regs[i].lo, env->tags[i], index);
if (fx) {
ps_write(env, env->wreg[i].hi, 0, index + 8);
ps_write(env, env->regs[i].hi, 0, index + 8);
}
}
} else{
for (int i = 0; i < n; i += 2, index += 32) {
E2KReg r0 = env->wreg[i + 0];
E2KReg r1 = env->wreg[i + 1];
E2KReg r0 = env->regs[i + 0];
E2KReg r1 = env->regs[i + 1];
ps_write(env, r0.lo, env->wtag[i], index);
ps_write(env, r1.lo, env->wtag[i + 1], index + 8);
ps_write(env, r0.lo, env->tags[i], index);
ps_write(env, r1.lo, env->tags[i + 1], index + 8);
if (fx) {
ps_write(env, r0.hi, 0, index + 16);
@ -84,23 +84,23 @@ static void ps_fill(CPUE2KState *env, int n, bool fx)
if (env->version >= 5) {
for (int i = n; i-- > 0; index -= 16) {
if (fx) {
env->wreg[i].hi = ps_read(env, NULL, index - 8);
env->regs[i].hi = ps_read(env, NULL, index - 8);
}
env->wreg[i].lo = ps_read(env, &env->wtag[i], index - 16);
env->regs[i].lo = ps_read(env, &env->tags[i], index - 16);
}
} else {
for (int i = n; i > 0; i -= 2, index -= 32) {
E2KReg *r0 = &env->wreg[i - 1];
E2KReg *r1 = &env->wreg[i - 2];
E2KReg *r0 = &env->regs[i - 1];
E2KReg *r1 = &env->regs[i - 2];
if (fx) {
r0->hi = ps_read(env, NULL, index - 8);
r1->hi = ps_read(env, NULL, index - 16);
}
r0->lo = ps_read(env, &env->wtag[i - 1], index - 24);
r1->lo = ps_read(env, &env->wtag[i - 2], index - 32);
r0->lo = ps_read(env, &env->tags[i - 1], index - 24);
r1->lo = ps_read(env, &env->tags[i - 2], index - 32);
}
}
@ -109,9 +109,9 @@ static void ps_fill(CPUE2KState *env, int n, bool fx)
static void move_regs(CPUE2KState *env, int dst, int src, int n)
{
memmove(&env->wreg[dst], &env->wreg[src], n * sizeof(env->wreg[0]));
memmove(&env->regs[dst], &env->regs[src], n * sizeof(env->regs[0]));
if (env->enable_tags) {
memmove(&env->wtag[dst], &env->wtag[src], n * sizeof(env->wtag[0]));
memmove(&env->tags[dst], &env->tags[src], n * sizeof(env->tags[0]));
}
}