RaySollium99/picodrive
1
0
Fork 0
mirror of https://github.com/RaySollium99/picodrive.git synced 2025-09-05 15:27:46 -04:00
Code Issues Projects Releases Packages Wiki Activity Actions

sh2 drc, add loop detector, handle delay/idle loops

Browse source
This commit is contained in:
kub 2019-04-30 21:18:12 +02:00
parent e01deede1b
commit 213b7f42c1
4 changed files with 247 additions and 30 deletions
Download patch file Download diff file Expand all files Collapse all files

9
cpu/sh2/compiler.h
View file

@ -18,9 +18,14 @@ void sh2_drc_frame(void);
/* op_flags */
#define OF_DELAY_OP (1 << 0)
#define OF_BTARGET (1 << 1)
#define OF_T_SET (1 << 2) // T is known to be set
#define OF_T_CLEAR (1 << 3) // ... clear
#define OF_LOOP (3 << 2) // NONE, IDLE, DELAY, POLL loop
#define OF_B_IN_DS (1 << 4)
#define OF_DELAY_INSN (1 << 5) // DT, (TODO ADD+CMP?)
#define OF_POLL_INSN (1 << 6) // MOV @(...),Rn (no post increment), TST @(...)
#define OF_IDLE_LOOP (1 << 2)
#define OF_DELAY_LOOP (2 << 2)
#define OF_POLL_LOOP (3 << 2)
unsigned short scan_block(unsigned int base_pc, int is_slave,
unsigned char *op_flags, unsigned int *end_pc,