Revision b6abf97d target-i386/op.c
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#define ASM_SOFTMMU |
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#include "exec.h" |
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/* n must be a constant to be efficient */ |
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static inline target_long lshift(target_long x, int n) |
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{
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if (n >= 0) |
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return x << n; |
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else |
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return x >> (-n); |
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} |
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/* we define the various pieces of code used by the JIT */ |
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#define REG EAX |
| ... | ... | |
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#endif |
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/* operations with flags */ |
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/* update flags with T0 and T1 (add/sub case) */ |
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void OPPROTO op_update2_cc(void) |
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{
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CC_SRC = T1; |
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CC_DST = T0; |
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} |
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/* update flags with T0 (logic operation case) */ |
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void OPPROTO op_update1_cc(void) |
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{
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CC_DST = T0; |
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} |
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void OPPROTO op_update_neg_cc(void) |
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{
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CC_SRC = -T0; |
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CC_DST = T0; |
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} |
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void OPPROTO op_cmpl_T0_T1_cc(void) |
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{
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CC_SRC = T1; |
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CC_DST = T0 - T1; |
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} |
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void OPPROTO op_update_inc_cc(void) |
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{
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CC_SRC = cc_table[CC_OP].compute_c(); |
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CC_DST = T0; |
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} |
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void OPPROTO op_testl_T0_T1_cc(void) |
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{
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CC_DST = T0 & T1; |
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} |
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/* operations without flags */ |
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void OPPROTO op_negl_T0(void) |
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{
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T0 = -T0; |
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} |
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void OPPROTO op_incl_T0(void) |
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{
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T0++; |
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} |
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void OPPROTO op_decl_T0(void) |
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{
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T0--; |
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} |
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void OPPROTO op_notl_T0(void) |
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{
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T0 = ~T0; |
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} |
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/* multiply/divide */ |
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/* XXX: add eflags optimizations */ |
| ... | ... | |
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A0 = (uint32_t)(A0 + (EAX & 0xff)); |
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} |
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#ifdef WORDS_BIGENDIAN |
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typedef union UREG64 {
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struct { uint16_t v3, v2, v1, v0; } w;
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struct { uint32_t v1, v0; } l;
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uint64_t q; |
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} UREG64; |
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#else |
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typedef union UREG64 {
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struct { uint16_t v0, v1, v2, v3; } w;
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struct { uint32_t v0, v1; } l;
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uint64_t q; |
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} UREG64; |
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#endif |
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#define PARAMQ1 \ |
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({\
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UREG64 __p;\ |
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__p.l.v1 = PARAM1;\ |
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__p.l.v0 = PARAM2;\ |
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__p.q;\ |
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}) |
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#ifdef TARGET_X86_64 |
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void OPPROTO op_addq_A0_AL(void) |
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