Lines Matching full:csr

8 #include "cpu-csr.h"
165     const CSRInfo *csr;
170     csr = &csr_info[csr_num];
171     if (csr->offset == 0) {
174     return csr;
177 static bool check_csr_flags(DisasContext *ctx, const CSRInfo *csr, bool write)
179     if ((csr->flags & CSRFL_READONLY) && write) {
182     if ((csr->flags & CSRFL_IO) && translator_io_start(&ctx->base)) {
184     } else if ((csr->flags & CSRFL_EXITTB) && write) {
193     const CSRInfo *csr;
198     csr = get_csr(a->csr);
199     if (csr == NULL) {
200         /* CSR is undefined: read as 0. */
203         check_csr_flags(ctx, csr, false);
205         if (csr->readfn) {
206             csr->readfn(dest, tcg_env);
208             tcg_gen_ld_tl(dest, tcg_env, csr->offset);
218     const CSRInfo *csr;
223     csr = get_csr(a->csr);
224     if (csr == NULL) {
225         /* CSR is undefined: write ignored, read old_value as 0. */
229     if (!check_csr_flags(ctx, csr, true)) {
230         /* CSR is readonly: trap. */
234     if (csr->writefn) {
236         csr->writefn(dest, tcg_env, src1);
239         tcg_gen_ld_tl(dest, tcg_env, csr->offset);
240         tcg_gen_st_tl(src1, tcg_env, csr->offset);
249     const CSRInfo *csr;
254     csr = get_csr(a->csr);
255     if (csr == NULL) {
256         /* CSR is undefined: write ignored, read old_value as 0. */
261     if (!check_csr_flags(ctx, csr, true)) {
262         /* CSR is readonly: trap. */
267     assert(csr->readfn == NULL);
275     tcg_gen_ld_tl(oldv, tcg_env, csr->offset);
280     if (csr->writefn) {
281         csr->writefn(oldv, tcg_env, newv);
283         tcg_gen_st_tl(newv, tcg_env, csr->offset);