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-rw-r--r--target/sh4/cpu.h14
1 files changed, 12 insertions, 2 deletions
diff --git a/target/sh4/cpu.h b/target/sh4/cpu.h
index 9211da6bde..d928bcf006 100644
--- a/target/sh4/cpu.h
+++ b/target/sh4/cpu.h
@@ -155,12 +155,22 @@ typedef struct CPUArchState {
uint32_t pc; /* program counter */
uint32_t delayed_pc; /* target of delayed branch */
uint32_t delayed_cond; /* condition of delayed branch */
- uint32_t mach; /* multiply and accumulate high */
- uint32_t macl; /* multiply and accumulate low */
uint32_t pr; /* procedure register */
uint32_t fpscr; /* floating point status/control register */
uint32_t fpul; /* floating point communication register */
+ /* multiply and accumulate: high, low and combined. */
+ union {
+ uint64_t mac;
+ struct {
+#if HOST_BIG_ENDIAN
+ uint32_t mach, macl;
+#else
+ uint32_t macl, mach;
+#endif
+ };
+ };
+
/* float point status register */
float_status fp_status;