RaySollium99/picodrive
1
0
Fork 0
mirror of https://github.com/RaySollium99/picodrive.git synced 2025-09-06 23:58:04 -04:00
Code Issues Projects Releases Packages Wiki Activity Actions

32x: drc: mmap dram+rom for direct dereference

Browse source 
git-svn-id: file:///home/notaz/opt/svn/PicoDrive@851 be3aeb3a-fb24-0410-a615-afba39da0efa
This commit is contained in:
notaz 2010-01-02 21:03:04 +00:00
parent f6c49d38cb
commit b081408f66
8 changed files with 200 additions and 71 deletions
Download patch file Download diff file Expand all files Collapse all files

39
cpu/drc/emit_arm.c
View file

@ -169,7 +169,8 @@
#define EOP_C_AM3_REG(cond,u,l,rn,rd,s,h,rm) EOP_C_AM3(cond,u,0,l,rn,rd,s,h,rm)
/* ldr and str */
#define EOP_LDR_IMM2(cond,rd,rn,offset_12) EOP_C_AM2_IMM(cond,1,0,1,rn,rd,offset_12)
#define EOP_LDR_IMM2(cond,rd,rn,offset_12) EOP_C_AM2_IMM(cond,1,0,1,rn,rd,offset_12)
#define EOP_LDRB_IMM2(cond,rd,rn,offset_12) EOP_C_AM2_IMM(cond,1,1,1,rn,rd,offset_12)
#define EOP_LDR_IMM( rd,rn,offset_12) EOP_C_AM2_IMM(A_COND_AL,1,0,1,rn,rd,offset_12)
#define EOP_LDR_NEGIMM(rd,rn,offset_12) EOP_C_AM2_IMM(A_COND_AL,0,0,1,rn,rd,offset_12)
@ -179,6 +180,8 @@
#define EOP_LDR_REG_LSL(cond,rd,rn,rm,shift_imm) EOP_C_AM2_REG(cond,1,0,1,rn,rd,shift_imm,A_AM1_LSL,rm)
#define EOP_LDRH_IMM2(cond,rd,rn,offset_8) EOP_C_AM3_IMM(cond,1,1,rn,rd,0,1,offset_8)
#define EOP_LDRH_IMM( rd,rn,offset_8) EOP_C_AM3_IMM(A_COND_AL,1,1,rn,rd,0,1,offset_8)
#define EOP_LDRH_SIMPLE(rd,rn) EOP_C_AM3_IMM(A_COND_AL,1,1,rn,rd,0,1,0)
#define EOP_LDRH_REG( rd,rn,rm) EOP_C_AM3_REG(A_COND_AL,1,1,rn,rd,0,1,rm)
@ -327,11 +330,14 @@ static int emith_xbranch(int cond, void *target, int is_call)
}
// fake "simple" or "short" jump - using cond insns instead
#define EMITH_SJMP_START(cond) \
#define EMITH_NOTHING1(cond) \
(void)(cond)
#define EMITH_SJMP_END(cond) \
(void)(cond)
#define EMITH_SJMP_START(cond) EMITH_NOTHING1(cond)
#define EMITH_SJMP_END(cond) EMITH_NOTHING1(cond)
#define EMITH_SJMP3_START(cond) EMITH_NOTHING1(cond)
#define EMITH_SJMP3_MID(cond) EMITH_NOTHING1(cond)
#define EMITH_SJMP3_END()
#define emith_move_r_r(d, s) \
EOP_MOV_REG_SIMPLE(d, s)
@ -485,8 +491,11 @@ static int emith_xbranch(int cond, void *target, int is_call)
#define emith_asr(d, s, cnt) \
EOP_MOV_REG(A_COND_AL,0,d,s,A_AM1_ASR,cnt)
#define emith_ror_c(cond, d, s, cnt) \
EOP_MOV_REG(cond,0,d,s,A_AM1_ROR,cnt)
#define emith_ror(d, s, cnt) \
EOP_MOV_REG(A_COND_AL,0,d,s,A_AM1_ROR,cnt)
emith_ror_c(A_COND_AL, d, s, cnt)
#define emith_rol(d, s, cnt) \
EOP_MOV_REG(A_COND_AL,0,d,s,A_AM1_ROR,32-(cnt)); \
@ -536,8 +545,26 @@ static int emith_xbranch(int cond, void *target, int is_call)
EOP_C_SMLAL(A_COND_AL,0,dhi,dlo,s1,s2)
// misc
#define emith_read_r_r_offs_c(cond, r, rs, offs) \
EOP_LDR_IMM2(cond, r, rs, offs)
#define emith_read8_r_r_offs_c(cond, r, rs, offs) \
EOP_LDRB_IMM2(cond, r, rs, offs)
#define emith_read16_r_r_offs_c(cond, r, rs, offs) \
EOP_LDRH_IMM2(cond, r, rs, offs)
#define emith_read_r_r_offs(r, rs, offs) \
emith_read_r_r_offs_c(A_COND_AL, r, rs, offs)
#define emith_read8_r_r_offs(r, rs, offs) \
emith_read8_r_r_offs_c(A_COND_AL, r, rs, offs)
#define emith_read16_r_r_offs(r, rs, offs) \
emith_read16_r_r_offs_c(A_COND_AL, r, rs, offs)
#define emith_ctx_read(r, offs) \
EOP_LDR_IMM(r, CONTEXT_REG, offs)
emith_read_r_r_offs(r, CONTEXT_REG, offs)
#define emith_ctx_write(r, offs) \
EOP_STR_IMM(r, CONTEXT_REG, offs)