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Optimize space usage of supercard platform (#74)

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This commit is contained in:
Edoardo Lolletti
2025-12-28 17:38:28 +01:00
committed by GitHub
parent 9f6311014d
commit 7134c4b330
8 changed files with 81 additions and 68 deletions
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15
arm9/source/patches/platform/supercard/SuperCardCommon.s
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@@ -1,9 +1,11 @@
.cpu arm7tdmi
.syntax unified
.section "scsd_common", "ax"
.section "scsd_change_mode", "ax"
#include "asminc.h"
.equ sd_resetaddr, 0x9440000
@ void sc_change_mode(uint16_t mode);
BEGIN_THUMB_FUNCTION sccmn_changeMode
ldr r2,= 0x09FFFFFE
@@ -12,8 +14,17 @@ BEGIN_THUMB_FUNCTION sccmn_changeMode
strh r3, [r2]
strh r0, [r2]
strh r0, [r2]
mov pc,lr
cmp r0, #3
bne 1f
@ if mode is 3 (sd enable), reset the sd card
@ SDResetCard
@ write 0
ldr r2,= sd_resetaddr
strh r2, [r2]
1:
mov pc, lr
.section "scsd_common", "ax"
@ this function will trash r4 but leave r0 and r1 untouched
@ void SDSendClock10(void)
BEGIN_THUMB_FUNCTION sccmn_sdSendClock10