188 lines
5.9 KiB
C
188 lines
5.9 KiB
C
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/* External helpers */
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void glue(do_lsw, MEMSUFFIX) (int dst);
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void glue(do_stsw, MEMSUFFIX) (int src);
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/* Internal helpers for sign extension and byte-reverse */
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static inline uint32_t glue(_ld16x, MEMSUFFIX) (void *EA, int type)
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{
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return s_ext16(glue(_lduw, MEMSUFFIX)(EA, type));
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}
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static inline uint16_t glue(_ld16r, MEMSUFFIX) (void *EA, int type)
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{
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uint16_t tmp = glue(_lduw, MEMSUFFIX)(EA, type);
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return ((tmp & 0xFF00) >> 8) | ((tmp & 0x00FF) << 8);
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}
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static inline uint32_t glue(_ld32r, MEMSUFFIX) (void *EA, int type)
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{
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uint32_t tmp = glue(_ldl, MEMSUFFIX)(EA, type);
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return ((tmp & 0xFF000000) >> 24) | ((tmp & 0x00FF0000) >> 8) |
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((tmp & 0x0000FF00) << 8) | ((tmp & 0x000000FF) << 24);
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}
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static inline void glue(_st16r, MEMSUFFIX) (void *EA, uint16_t data, int type)
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{
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uint16_t tmp = ((data & 0xFF00) >> 8) | ((data & 0x00FF) << 8);
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glue(_stw, MEMSUFFIX)(EA, tmp, type);
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}
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static inline void glue(_st32r, MEMSUFFIX) (void *EA, uint32_t data, int type)
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{
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uint32_t tmp = ((data & 0xFF000000) >> 24) | ((data & 0x00FF0000) >> 8) |
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((data & 0x0000FF00) << 8) | ((data & 0x000000FF) << 24);
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glue(_stl, MEMSUFFIX)(EA, tmp, type);
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}
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/*** Integer load ***/
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#define PPC_LD_OP(name, op) \
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PPC_OP(glue(glue(l, name), MEMSUFFIX)) \
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{ \
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T1 = glue(op, MEMSUFFIX)((void *)T0, ACCESS_INT); \
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RETURN(); \
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}
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#define PPC_ST_OP(name, op) \
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PPC_OP(glue(glue(st, name), MEMSUFFIX)) \
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{ \
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glue(op, MEMSUFFIX)((void *)T0, T1, ACCESS_INT); \
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RETURN(); \
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}
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PPC_LD_OP(bz, _ldub);
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PPC_LD_OP(ha, _ld16x);
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PPC_LD_OP(hz, _lduw);
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PPC_LD_OP(wz, _ldl);
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/*** Integer store ***/
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PPC_ST_OP(b, _stb);
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PPC_ST_OP(h, _stw);
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PPC_ST_OP(w, _stl);
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/*** Integer load and store with byte reverse ***/
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PPC_LD_OP(hbr, _ld16r);
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PPC_LD_OP(wbr, _ld32r);
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PPC_ST_OP(hbr, _st16r);
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PPC_ST_OP(wbr, _st32r);
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/*** Integer load and store multiple ***/
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PPC_OP(glue(lmw, MEMSUFFIX))
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{
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int dst = PARAM(1);
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for (; dst < 32; dst++, T0 += 4) {
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ugpr(dst) = glue(_ldl, MEMSUFFIX)((void *)T0, ACCESS_INT);
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}
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RETURN();
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}
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PPC_OP(glue(stmw, MEMSUFFIX))
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{
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int src = PARAM(1);
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for (; src < 32; src++, T0 += 4) {
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glue(_stl, MEMSUFFIX)((void *)T0, ugpr(src), ACCESS_INT);
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}
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RETURN();
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}
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/*** Integer load and store strings ***/
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PPC_OP(glue(lswi, MEMSUFFIX))
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{
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glue(do_lsw, MEMSUFFIX)(PARAM(1));
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RETURN();
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}
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/* PPC32 specification says we must generate an exception if
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* rA is in the range of registers to be loaded.
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* In an other hand, IBM says this is valid, but rA won't be loaded.
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* For now, I'll follow the spec...
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*/
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PPC_OP(glue(lswx, MEMSUFFIX))
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{
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if (T1 > 0) {
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if ((PARAM(1) < PARAM(2) && (PARAM(1) + T1) > PARAM(2)) ||
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(PARAM(1) < PARAM(3) && (PARAM(1) + T1) > PARAM(3))) {
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do_queue_exception_err(EXCP_PROGRAM, EXCP_INVAL | EXCP_INVAL_LSWX);
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do_process_exceptions();
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} else {
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glue(do_lsw, MEMSUFFIX)(PARAM(1));
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}
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}
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RETURN();
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}
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PPC_OP(glue(stsw, MEMSUFFIX))
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{
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glue(do_stsw, MEMSUFFIX)(PARAM(1));
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RETURN();
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}
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/*** Floating-point store ***/
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#define PPC_STF_OP(name, op) \
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PPC_OP(glue(glue(st, name), MEMSUFFIX)) \
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{ \
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glue(op, MEMSUFFIX)((void *)T0, FT1); \
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RETURN(); \
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}
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PPC_STF_OP(fd, stfq);
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PPC_STF_OP(fs, stfl);
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/*** Floating-point load ***/
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#define PPC_LDF_OP(name, op) \
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PPC_OP(glue(glue(l, name), MEMSUFFIX)) \
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{ \
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FT1 = glue(op, MEMSUFFIX)((void *)T0); \
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RETURN(); \
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}
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PPC_LDF_OP(fd, ldfq);
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PPC_LDF_OP(fs, ldfl);
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/* Store with reservation */
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PPC_OP(glue(stwcx, MEMSUFFIX))
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{
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if (T0 & 0x03) {
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do_queue_exception(EXCP_ALIGN);
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do_process_exceptions();
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} else {
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if (regs->reserve != T0) {
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env->crf[0] = xer_ov;
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} else {
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glue(_stl, MEMSUFFIX)((void *)T0, T1, ACCESS_RES);
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env->crf[0] = xer_ov | 0x02;
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}
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}
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regs->reserve = 0;
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RETURN();
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}
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PPC_OP(glue(dcbz, MEMSUFFIX))
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{
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glue(_stl, MEMSUFFIX)((void *)(T0 + 0x00), 0, ACCESS_INT);
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glue(_stl, MEMSUFFIX)((void *)(T0 + 0x04), 0, ACCESS_INT);
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glue(_stl, MEMSUFFIX)((void *)(T0 + 0x08), 0, ACCESS_INT);
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glue(_stl, MEMSUFFIX)((void *)(T0 + 0x0C), 0, ACCESS_INT);
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glue(_stl, MEMSUFFIX)((void *)(T0 + 0x10), 0, ACCESS_INT);
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glue(_stl, MEMSUFFIX)((void *)(T0 + 0x14), 0, ACCESS_INT);
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glue(_stl, MEMSUFFIX)((void *)(T0 + 0x18), 0, ACCESS_INT);
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glue(_stl, MEMSUFFIX)((void *)(T0 + 0x1C), 0, ACCESS_INT);
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RETURN();
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}
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/* External access */
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PPC_OP(glue(eciwx, MEMSUFFIX))
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{
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T1 = glue(_ldl, MEMSUFFIX)((void *)T0, ACCESS_EXT);
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RETURN();
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}
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PPC_OP(glue(ecowx, MEMSUFFIX))
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{
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glue(_stl, MEMSUFFIX)((void *)T0, T1, ACCESS_EXT);
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RETURN();
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}
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#undef MEMSUFFIX
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