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disable onscreen printing, add lock to prevent corruption

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This commit is contained in:
Connor Olding 2016-09-27 12:13:11 -07:00
parent 8b38afbb7f
commit 3bdd305fb6
1 changed files with 16 additions and 5 deletions
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21
Lua/inject/print.asm
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@ -2,6 +2,9 @@
// to copy strings to memory instead // to copy strings to memory instead
// for Lua to later pick up on // for Lua to later pick up on
jr
nop
/*
[global_context]: 0x80212020 [global_context]: 0x80212020
// offset from first pointer in global context // offset from first pointer in global context
@ -14,10 +17,6 @@
[InitTxtStruct]: 0x800FBB8C // unused here; we set it up inline [InitTxtStruct]: 0x800FBB8C // unused here; we set it up inline
[DoTxtStruct]: 0x800FBC1C [DoTxtStruct]: 0x800FBC1C
[UpdateTxtStruct]: 0x800FBC64 [UpdateTxtStruct]: 0x800FBC64
[ObjectSpawn]: 0x80097C00
[ObjectIndex]: 0x8009812C
push 4, 1, ra push 4, 1, ra
// draw the debug text // draw the debug text
li a0, 0x00010001 // xy li a0, 0x00010001 // xy
@ -38,20 +37,31 @@ fmt:
.align .align
.include "simple text.asm" .include "simple text.asm"
*/
// keep track of where we are in the buffer // keep track of where we are in the buffer
.org 0x807006F8
buffer_pos: buffer_pos:
.word buffer
buffer_lock:
.word 0 .word 0
.align 4 //.align 4
buffer: buffer:
.skip 0x3000 .skip 0x3000
// force a crash-like thing that dumps a ton of (RDP?) info:
//.org 0x800C5E78
// li t8, 0x29a
// overwrite (not hook) the debug printing function // overwrite (not hook) the debug printing function
.org 0x800021B0 .org 0x800021B0
// a0: unknown // a0: unknown
// a1: char *msg // a1: char *msg
// a2: size_t len // a2: size_t len
li t0, 1
sw t0, buffer_lock
lw t0, buffer_pos lw t0, buffer_pos
copy_loop: copy_loop:
lb t1, 0(a1) lb t1, 0(a1)
@ -62,5 +72,6 @@ copy_loop:
bne a2, r0, copy_loop bne a2, r0, copy_loop
sb r0, 0(t0) // null terminate sb r0, 0(t0) // null terminate
sw t0, buffer_pos sw t0, buffer_pos
sw r0, buffer_lock
jr jr
nop nop