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svp compiler: ssp_hle_902

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git-svn-id: file:///home/notaz/opt/svn/PicoDrive@386 be3aeb3a-fb24-0410-a615-afba39da0efa
This commit is contained in:
notaz 2008-03-16 12:02:59 +00:00
parent 4588391846
commit f5d1115ffc
3 changed files with 67 additions and 3 deletions
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3
Pico/carthw/svp/compiler.c
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@ -1705,10 +1705,11 @@ int ssp1601_dyn_startup(void)
PicoLoadStateHook = ssp1601_state_load;
n_in_ops = 0;
#ifdef ARM
// hle'd blocks
block_table[0x400] = (void *) ssp_hle_800;
n_in_ops = 3; // # of hled ops
block_table[0x902/2] = (void *) ssp_hle_902;
#endif
return 0;

1
Pico/carthw/svp/compiler.h
View file

@ -8,6 +8,7 @@ void ssp_drc_next_patch(void);
void ssp_drc_end(void);
void ssp_hle_800(void);
void ssp_hle_902(void);
int ssp1601_dyn_startup(void);
void ssp1601_dyn_reset(ssp1601_t *ssp);

66
Pico/carthw/svp/stub_arm.S
View file

@ -12,6 +12,7 @@
.global ssp_drc_next_patch
.global ssp_drc_end
.global ssp_hle_800
.global ssp_hle_902
@ translation cache buffer
.text
@ -51,7 +52,10 @@ flush_inval_caches:
#define SSP_PC 6
#define SSP_P 7
#define SSP_PM0 8
#define SSP_PMC 14
#define SSP_OFFS_PM_WRITE 0x46c // pmac_write[]
#define SSP_OFFS_EMUSTAT 0x484 // emu_status
#define SSP_OFFS_IRAM_ROM 0x48c // ptr_iram_rom
#define SSP_OFFS_IRAM_DIRTY 0x494
#define SSP_OFFS_IRAM_CTX 0x498 // iram_context
#define SSP_OFFS_BLTAB 0x49c // block_table
@ -239,13 +243,71 @@ ssp_hle_800:
ldr r0, [r7, #(SSP_OFFS_GR+SSP_PM0*4)]
ldr r1, [r7, #SSP_OFFS_EMUSTAT]
tst r0, #0x20000
orreq r1, r1, #SSP_WAIT_PM0
orreq r1, r1, #SSP_WAIT_PM0
subeq r11,r11, #1024
streq r1, [r7, #SSP_OFFS_EMUSTAT]
mov r0, #0x400
beq ssp_drc_end
orrne r0, r0, #0x004
b ssp_drc_next
ssp_hle_902:
cmp r11, #0
ble ssp_drc_end
add r1, r7, #0x200
ldrh r0, [r1]
ldr r3, [r7, #SSP_OFFS_IRAM_ROM]
add r2, r3, r0, lsl #1 @ (r7|00)
ldrh r0, [r2], #2
mov r5, r5, lsl #16
mov r5, r5, lsr #16
bic r0, r0, #0xfc00
add r3, r3, r0, lsl #1 @ IRAM dest
ldrh r12,[r2], #2 @ length
bic r3, r3, #3 @ always seen aligned
@ orr r5, r5, #0x08000000
@ orr r5, r5, #0x00880000
@ sub r5, r5, r12, lsl #16
bic r6, r6, #0xf
add r12,r12,#1
mov r0, #1
str r0, [r7, #SSP_OFFS_IRAM_DIRTY]
sub r11,r11,r12,lsl #1
sub r11,r11,r12 @ -= length*3
ssp_hle_902_loop:
ldrh r0, [r2], #2
ldrh r1, [r2], #2
subs r12,r12,#2
orr r0, r0, r1, lsl #16
str r0, [r3], #4
bgt ssp_hle_902_loop
tst r12, #1
ldrneh r0, [r2], #2
strneh r0, [r3], #2
ldr r0, [r7, #SSP_OFFS_IRAM_ROM]
add r1, r7, #0x200
sub r2, r2, r0
mov r2, r2, lsr #1
strh r2, [r1] @ (r7|00)
sub r0, r3, r0
mov r0, r0, lsr #1
orr r0, r0, #0x08000000
orr r0, r0, #0x001c8000
str r0, [r7, #(SSP_OFFS_GR+SSP_PMC*4)]
str r0, [r7, #(SSP_OFFS_PM_WRITE+4*4)]
sub r6, r6, #0x20000000
add r1, r7, #0x400
add r1, r1, #0x048 @ stack
add r1, r1, r6, lsr #28
ldrh r0, [r1]
subs r11,r11,#16 @ timeslice is likely to end
ble ssp_drc_end
b ssp_drc_next