71 lines
1.3 KiB
C
71 lines
1.3 KiB
C
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/* ARM memory operations. */
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/* Load from address T1 into T0. */
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#define MEM_LD_OP(name) \
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void OPPROTO glue(op_ld##name,MEMSUFFIX)(void) \
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{ \
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T0 = glue(ld##name,MEMSUFFIX)(T1); \
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FORCE_RET(); \
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}
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MEM_LD_OP(ub)
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MEM_LD_OP(sb)
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MEM_LD_OP(uw)
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MEM_LD_OP(sw)
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MEM_LD_OP(l)
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#undef MEM_LD_OP
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/* Store T0 to address T1. */
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#define MEM_ST_OP(name) \
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void OPPROTO glue(op_st##name,MEMSUFFIX)(void) \
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{ \
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glue(st##name,MEMSUFFIX)(T1, T0); \
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FORCE_RET(); \
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}
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MEM_ST_OP(b)
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MEM_ST_OP(w)
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MEM_ST_OP(l)
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#undef MEM_ST_OP
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/* Swap T0 with memory at address T1. */
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/* ??? Is this exception safe? */
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#define MEM_SWP_OP(name, lname) \
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void OPPROTO glue(op_swp##name,MEMSUFFIX)(void) \
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{ \
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uint32_t tmp; \
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cpu_lock(); \
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tmp = glue(ld##lname,MEMSUFFIX)(T1); \
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glue(st##name,MEMSUFFIX)(T1, T0); \
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T0 = tmp; \
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cpu_unlock(); \
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FORCE_RET(); \
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}
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MEM_SWP_OP(b, ub)
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MEM_SWP_OP(l, l)
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#undef MEM_SWP_OP
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/* Floating point load/store. Address is in T1 */
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#define VFP_MEM_OP(p, w) \
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void OPPROTO glue(op_vfp_ld##p,MEMSUFFIX)(void) \
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{ \
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FT0##p = glue(ldf##w,MEMSUFFIX)(T1); \
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FORCE_RET(); \
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} \
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void OPPROTO glue(op_vfp_st##p,MEMSUFFIX)(void) \
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{ \
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glue(stf##w,MEMSUFFIX)(T1, FT0##p); \
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FORCE_RET(); \
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}
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VFP_MEM_OP(s,l)
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VFP_MEM_OP(d,q)
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#undef VFP_MEM_OP
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#undef MEMSUFFIX
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