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sh2 drc, add detection for in-memory polling

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This commit is contained in:
kub 2019-05-02 23:16:55 +02:00
parent 213b7f42c1
commit 397ccdc6cf
9 changed files with 224 additions and 113 deletions
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23
pico/32x/memory_arm.S
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@ -227,9 +227,9 @@ sh2_write32_sdram:
ldrb r1, [ip, r3, lsr #SH2_RAM_SHIFT+1]!
cmp r1, #0
beq 1f
stmfd sp!, {r0, r1, r2, ip}
stmfd sp!, {r0, r2, ip, lr}
bl sh2_drc_wcheck_ram
ldmfd sp!, {r0, r1, r2, ip}
ldmfd sp!, {r0, r2, ip, lr}
1: ldrb r1, [ip, #1]
cmp r1, #0
bxeq lr
@ -250,9 +250,9 @@ sh2_write32_da:
ldrb r1, [ip, r3, lsr #SH2_DA_SHIFT+1]!
cmp r1, #0
beq 1f
stmfd sp!, {r0, r1, r2, ip}
stmfd sp!, {r0, r2, ip, lr}
bl sh2_drc_wcheck_da
ldmfd sp!, {r0, r1, r2, ip}
ldmfd sp!, {r0, r2, ip, lr}
1: ldrb r1, [ip, #1]
cmp r1, #0
bxeq lr
@ -269,7 +269,6 @@ sh2_write32_dram:
moveq r1, r1, ror #16
streq r1, [ip, r3, lsr #SH2_DRAM_SHIFT]
bxeq lr
#if 1
ldr r0, [ip, r3, lsr #SH2_DRAM_SHIFT]
mov r1, r1, ror #16
mov r2, #0
@ -284,20 +283,6 @@ sh2_write32_dram:
bic r0, r0, r2
orr r0, r0, r1
str r0, [ip, r3, lsr #SH2_DRAM_SHIFT]
#else
add ip, ip, r3, lsr #SH2_DRAM_SHIFT
tst r1, #0x00ff0000
lsrne r3, r1, #16
strneb r3, [ip, #0]
tst r1, #0xff000000
lsrne r3, r1, #24
strneb r3, [ip, #1]
tst r1, #0x000000ff
strneb r1, [ip, #2]
tst r1, #0x0000ff00
lsrne r3, r1, #8
strneb r3, [ip, #3]
#endif
bx lr
.pool