gwj / at91sam9263 · Commits

Commit aab33094073678d459ccaac5c60ea7533e8d1d8e

Authored by bellard
1 parent 05f3fb8d

more physical memory access functions 


git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@1587 c046a42c-6fe2-441c-8c8c-71466251a162
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Showing 2 changed files with 51 additions and 0 deletions
cpu-all.h
  View file @aab3309
... ... @@ -735,9 +735,15 @@ static inline void cpu_physical_memory_write(target_phys_addr_t addr,
735 735 {
736 736 cpu_physical_memory_rw(addr, (uint8_t *)buf, len, 1);
737 737 }
  738 +uint32_t ldub_phys(target_phys_addr_t addr);
  739 +uint32_t lduw_phys(target_phys_addr_t addr);
738 740 uint32_t ldl_phys(target_phys_addr_t addr);
  741 +uint64_t ldq_phys(target_phys_addr_t addr);
739 742 void stl_phys_notdirty(target_phys_addr_t addr, uint32_t val);
  743 +void stb_phys(target_phys_addr_t addr, uint32_t val);
  744 +void stw_phys(target_phys_addr_t addr, uint32_t val);
740 745 void stl_phys(target_phys_addr_t addr, uint32_t val);
  746 +void stq_phys(target_phys_addr_t addr, uint64_t val);
741 747  
742 748 int cpu_memory_rw_debug(CPUState *env, target_ulong addr,
743 749 uint8_t *buf, int len, int is_write);
... ...
... ... @@ -2284,6 +2284,30 @@ uint32_t ldl_phys(target_phys_addr_t addr)
2284 2284 return val;
2285 2285 }
2286 2286  
  2287 +/* XXX: optimize */
  2288 +uint32_t ldub_phys(target_phys_addr_t addr)
  2289 +{
  2290 + uint8_t val;
  2291 + cpu_physical_memory_read(addr, &val, 1);
  2292 + return val;
  2293 +}
  2294 +
  2295 +/* XXX: optimize */
  2296 +uint32_t lduw_phys(target_phys_addr_t addr)
  2297 +{
  2298 + uint16_t val;
  2299 + cpu_physical_memory_read(addr, (uint8_t *)&val, 2);
  2300 + return tswap16(val);
  2301 +}
  2302 +
  2303 +/* XXX: optimize */
  2304 +uint64_t ldq_phys(target_phys_addr_t addr)
  2305 +{
  2306 + uint64_t val;
  2307 + cpu_physical_memory_read(addr, (uint8_t *)&val, 8);
  2308 + return tswap64(val);
  2309 +}
  2310 +
2287 2311 /* warning: addr must be aligned. The ram page is not masked as dirty
2288 2312 and the code inside is not invalidated. It is useful if the dirty
2289 2313 bits are used to track modified PTEs */
... ... @@ -2345,6 +2369,27 @@ void stl_phys(target_phys_addr_t addr, uint32_t val)
2345 2369 }
2346 2370 }
2347 2371  
  2372 +/* XXX: optimize */
  2373 +void stb_phys(target_phys_addr_t addr, uint32_t val)
  2374 +{
  2375 + uint8_t v = val;
  2376 + cpu_physical_memory_write(addr, &v, 1);
  2377 +}
  2378 +
  2379 +/* XXX: optimize */
  2380 +void stw_phys(target_phys_addr_t addr, uint32_t val)
  2381 +{
  2382 + uint16_t v = tswap16(val);
  2383 + cpu_physical_memory_write(addr, (const uint8_t *)&v, 2);
  2384 +}
  2385 +
  2386 +/* XXX: optimize */
  2387 +void stq_phys(target_phys_addr_t addr, uint64_t val)
  2388 +{
  2389 + val = tswap64(val);
  2390 + cpu_physical_memory_write(addr, (const uint8_t *)&val, 8);
  2391 +}
  2392 +
2348 2393 #endif
2349 2394  
2350 2395 /* virtual memory access for debug */
... ...