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Run simulation with verilog sd emulator

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This also slowed the cpu clock down, we should speed it up again
This commit is contained in:
Byron Lathi
2024-03-14 08:17:05 -07:00
parent 24a7001aee
commit 335f877d66
6 changed files with 30 additions and 47 deletions
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66
sw/test_code/sd_controller_test/main.s
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@@ -20,6 +20,9 @@ _nmi_int:
_irq_int:
_init:
ldx #$ff
txs
lda #$00
sta SD_CONTROLLER
@@ -32,21 +35,21 @@ _init:
sta SD_ARG+3
lda #$08
sta SD_CONTROLLER
nop
nop
nop
jsr delay
lda #55
sta SD_CONTROLLER
jsr delay
lda #41
sta SD_CONTROLLER
nop
nop
nop
jsr delay
@acmd41:
lda #55
sta SD_CONTROLLER
jsr delay
lda #$80
sta SD_ARG+1
lda #$ff
@@ -56,11 +59,7 @@ _init:
lda #41
sta SD_CONTROLLER
nop
nop
nop
nop
nop
jsr delay
lda SD_RESP+3
bmi card_ready
@@ -76,30 +75,12 @@ card_ready:
lda #2
sta SD_CONTROLLER
nop
nop
nop
nop
nop
nop
nop
nop
nop
nop
jsr delay
lda #3
sta SD_CONTROLLER
nop
nop
nop
nop
nop
nop
nop
nop
nop
nop
jsr delay
lda SD_RESP
sta rca
@@ -121,18 +102,19 @@ card_ready:
lda #7
sta SD_CONTROLLER
nop
nop
nop
nop
nop
nop
nop
nop
nop
nop
jsr delay
lda #17
sta SD_CONTROLLER
@end: bra @end
@end: bra @end
delay:
nop
nop
nop
nop
nop
nop
nop
rts