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move saving SH2 SR into memory access and do so only if needed

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This commit is contained in:
kub 2019-03-27 21:58:32 +01:00
parent 9031406131
commit ff0eaa11d9
4 changed files with 84 additions and 27 deletions
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14
cpu/sh2/compiler.c
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@ -1231,11 +1231,11 @@ static int emit_memhandler_read(int size)
rcache_clean();
#ifndef DCR_SR_REG
// must writeback cycles for poll detection stuff
// FIXME: rm
if (reg_map_g2h[SHR_SR] != -1)
emith_ctx_write(reg_map_g2h[SHR_SR], SHR_SR * 4);
#endif
arg1 = rcache_get_tmp_arg(1);
emith_move_r_r_ptr(arg1, CONTEXT_REG);
switch (size) {
@ -1244,10 +1244,10 @@ static int emit_memhandler_read(int size)
case 2: emith_call(sh2_drc_read32); break; // 32
}
rcache_invalidate();
#ifndef DCR_SR_REG
if (reg_map_g2h[SHR_SR] != -1)
emith_ctx_read(reg_map_g2h[SHR_SR], SHR_SR * 4);
#endif
return rcache_get_tmp_ret();
}
@ -1255,10 +1255,10 @@ static int emit_memhandler_read(int size)
static void emit_memhandler_write(int size)
{
int arg2;
#ifndef DCR_SR_REG
if (reg_map_g2h[SHR_SR] != -1)
emith_ctx_write(reg_map_g2h[SHR_SR], SHR_SR * 4);
#endif
rcache_clean();
arg2 = rcache_get_tmp_arg(2);
@ -1270,8 +1270,10 @@ static void emit_memhandler_write(int size)
}
rcache_invalidate();
#ifndef DCR_SR_REG
if (reg_map_g2h[SHR_SR] != -1)
emith_ctx_read(reg_map_g2h[SHR_SR], SHR_SR * 4);
#endif
}
// rd = @(Rs,#offs)