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svp compiler: added first wait loop detection

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git-svn-id: file:///home/notaz/opt/svn/PicoDrive@363 be3aeb3a-fb24-0410-a615-afba39da0efa
This commit is contained in:
notaz 2008-02-24 23:49:06 +00:00
parent 5d817c9138
commit b9c1d0129a
4 changed files with 164 additions and 15 deletions
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25
Pico/carthw/svp/stub_arm.S
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@ -36,7 +36,7 @@ flush_inval_caches:
@ register map:
@ r4: XXYY
@ r5: A
@ r6: STACK and emu flags
@ r6: STACK and emu flags: sss0 * .uu. .lll NZCV (NZCV is PSR bits from ARM)
@ r7: SSP context
@ r8: r0-r2 (.210)
@ r9: r4-r6 (.654)
@ -54,8 +54,16 @@ regfile_load:
mov r3, r3, lsr #16
mov r3, r3, lsl #16
orr r4, r3, r4, lsr #16 @ XXYY
bic r6, r6, #0xff
orr r6, r6, r8, lsr #16 @ flags + STACK
and r8, r8, #0x0f0000
mov r8, r8, lsl #13 @ sss0 *
and r9, r6, #0x670000
tst r6, #0x80000000
orrne r8, r8, #0x8
tst r6, #0x20000000
orrne r8, r8, #0x4 @ sss0 * NZ..
orr r6, r8, r9, lsr #12 @ sss0 * .uu. .lll ....
ldr r8, [r7, #0x440] @ r0-r2
ldr r9, [r7, #0x444] @ r4-r6
ldr r10,[r7, #(0x400+7*4)] @ P
@ -66,9 +74,16 @@ regfile_store:
str r10,[r7, #(0x400+7*4)] @ P
str r8, [r7, #0x440] @ r0-r2
str r9, [r7, #0x444] @ r4-r6
mov r9, r6, lsl #16
mov r9, r6, lsr #13
and r9, r9, #(7<<16) @ STACK
bic r6, r6, #0xff @ ST
mov r3, r6, lsl #28
msr cpsr_flg, r3 @ to to ARM PSR
and r6, r6, #0x670
mov r6, r6, lsl #12
orrmi r6, r6, #0x80000000 @ N
orreq r6, r6, #0x20000000 @ Z
mov r3, r4, lsl #16 @ Y
mov r2, r4, lsr #16
mov r2, r2, lsl #16 @ X