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various smallish optimizations, cleanups, and bug fixes

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This commit is contained in:
kub 2019-09-17 22:48:32 +02:00
parent fe344bd3d8
commit f53e166cf4
8 changed files with 109 additions and 35 deletions
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16
cpu/sh2/compiler.h
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@ -33,26 +33,24 @@ unsigned short scan_block(unsigned int base_pc, int is_slave,
#if defined(DRC_SH2)
// direct access to some host CPU registers used by the DRC
// XXX MUST match definitions in cpu/sh2/compiler.c
// XXX MUST match definitions for SHR_SR in cpu/sh2/compiler.c
#if defined(__arm__)
#define DRC_SR_REG r10
#define DRC_SR_REG "r10"
#elif defined(__aarch64__)
#define DRC_SR_REG r22
#define DRC_SR_REG "r22"
#elif defined(__mips__)
#define DRC_SR_REG s6
#define DRC_SR_REG "s6"
#elif defined(__i386__)
#define DRC_SR_REG edi
#define DRC_SR_REG "edi"
#elif defined(__x86_64__)
#define DRC_SR_REG ebx
#define DRC_SR_REG "ebx"
#else
#warning "direct DRC register access not available for this host"
#endif
#endif
#ifdef DRC_SR_REG
#define __DRC_DECLARE_SR(SR) register int sh2_sr asm(#SR)
#define _DRC_DECLARE_SR(SR) __DRC_DECLARE_SR(SR)
#define DRC_DECLARE_SR _DRC_DECLARE_SR(DRC_SR_REG)
#define DRC_DECLARE_SR register int sh2_sr asm(DRC_SR_REG)
#define DRC_SAVE_SR(sh2) \
if ((sh2->state & (SH2_STATE_RUN|SH2_STATE_SLEEP)) == SH2_STATE_RUN) \
sh2->sr = sh2_sr;