From 9f4891f95070c66ea9f1aba99d72724d4ab24e5a Mon Sep 17 00:00:00 2001
From: "John Wilbert M. Villamor" <lameguy64@gmail.com>
Date: Sat, 19 Sep 2020 20:43:05 +0800
Subject: Revised makefiles, added strtok(), command line arguments,
 SetHeapSize(), moved ISR and callback system to psxetc, moved debug font to
 psxgpu, fixed CD-ROM library crashing on PSIO, fixed interrupt callback setup
 to fix crashing on ResetGraph()

---
 libpsn00b/psxgpu/dmacallback.s | 191 -----------------------------------------
 1 file changed, 191 deletions(-)
 delete mode 100644 libpsn00b/psxgpu/dmacallback.s

(limited to 'libpsn00b/psxgpu/dmacallback.s')

diff --git a/libpsn00b/psxgpu/dmacallback.s b/libpsn00b/psxgpu/dmacallback.s
deleted file mode 100644
index b2f86cf..0000000
--- a/libpsn00b/psxgpu/dmacallback.s
+++ /dev/null
@@ -1,191 +0,0 @@
-.set noreorder
-
-.include "hwregs_a.h"
-
-.section .text
-
-.global DMACallback
-.type DMACallback, @function
-DMACallback:
-
-	# a0 - DMA channel
-	# a1 - Callback function
-	
-	addiu	$sp, -8
-	sw		$ra, 0($sp)
-
-	beqz	$a1, .Lremove_cb		# Remove callback if function is NULL
-	nop
-	
-	addiu	$sp, -8					# Install IRQ handler for DMA handler
-	sw		$a0, 0($sp)				# if not set installed yet
-	sw		$a1, 4($sp)
-	
-	jal		GetInterruptCallback
-	li		$a0, 3
-	
-	bnez	$v0, .Lskip_install
-	nop
-	
-	la		$a1, _dma_handler
-	jal		InterruptCallback
-	li		$a0, 3
-
-.Lskip_install:
-	
-	lw		$a0, 0($sp)
-	lw		$a1, 4($sp)
-	addiu	$sp, 8
-	
-	la		$v0, _dma_func_table
-	sll		$v1, $a0, 2
-	addu	$v0, $v1
-	lw		$v1, 0($v0)
-	sw		$a1, 0($v0)
-	sw		$v1, 4($sp)
-	
-	lui		$a2, IOBASE
-	
-	lw		$v0, DICR($a2)			# Enable DMA interrupt
-	lui		$v1, 0x1
-	sll		$v1, $a0
-	or		$v0, $v1
-	lui		$v1, 0x80
-	or		$v0, $v1
-	sw		$v0, DICR($a2)
-	
-	b		.Lskip_remove
-	nop
-	
-.Lremove_cb:
-
-	la		$v0, _dma_func_table	# Set callback address
-	sll		$v1, $a0, 2
-	addu	$v0, $v1
-	lw		$v1, 0($v0)
-	sw		$a1, 0($v0)
-	sw		$v1, 4($sp)
-	
-	lui		$a2, IOBASE				# Disable DMA interrupt
-	lw		$v0, DICR($a2)
-	lui		$v1, 0x1
-	sll		$v1, $a0
-	.set noat
-	addiu	$at, $0, -1
-	xor		$v1, $at
-	and		$v0, $v1
-	lui		$v1, 0x7f00
-	xor		$v1, $at
-	and		$v0, $v1
-	.set at
-	sw		$v0, DICR($a2)
-	
-	jal		_dma_has_cb				# Check if callbacks are present
-	nop
-	bnez	$v0, .Lskip_remove
-	nop
-	sw		$0 , DICR($a2)
-	
-	jal		GetInterruptCallback	# Check if callback is the DMA handler
-	li		$a0, 3
-	la		$v1, _dma_handler
-	bne		$v0, $v1, .Lskip_remove
-	nop
-	
-	li		$a0, 3
-	jal		InterruptCallback
-	move	$a1, $0
-	
-.Lskip_remove:
-	
-	lw		$ra, 0($sp)
-	lw		$v0, 4($sp)
-	jr		$ra
-	addiu	$sp, 8
-
-	
-.type _dma_has_cb, @function
-_dma_has_cb:
-
-	la		$v1, _dma_func_table
-	li		$t0, 6
-	
-.Lscan_loop:
-
-	lw		$v0, 0($v1)
-	addiu	$v1, 4
-	bnez	$v0, .Lhas_cb
-	nop
-	
-	bgtz	$t0, .Lscan_loop
-	addiu	$t0, -1
-	
-	jr		$ra
-	move	$v0, $0
-	
-.Lhas_cb:
-
-	jr		$ra
-	li		$v0, 1
-	
-	
-.type _dma_handler, @function
-_dma_handler:
-
-	addiu	$sp, -12
-	sw		$ra, 0($sp)
-	sw		$s0, 4($sp)
-	sw		$s1, 8($sp)
-	
-	move	$s0, $0
-	la		$s1, _dma_func_table
-	
-.Lhandler_loop:
-
-	lui		$a0, IOBASE
-	lw		$v0, DICR($a0)
-	li		$v1, 24
-	addu	$v1, $s0
-	srl		$v0, $v1
-	andi	$v0, 0x1
-	
-	lw		$v1, 0($s1)
-	
-	beqz	$v0, .Lno_irq
-	addiu	$s1, 4
-	
-	beqz	$v1, .Lno_irq
-	nop
-	
-	jalr	$v1
-	nop
-	
-.Lno_irq:
-	
-	blt		$s0, 6, .Lhandler_loop
-	addi	$s0, 1
-	
-	lui		$a0, IOBASE
-	lw		$v0, DICR($a0)
-	nop
-	sw		$v0, DICR($a0)
-	
-	lw		$ra, 0($sp)
-	lw		$s0, 4($sp)
-	lw		$s1, 8($sp)
-	
-	jr		$ra
-	addiu	$sp, -12
-	
-	
-.section .data
-
-_dma_func_table:
-	.word	0
-	.word	0
-	.word	0
-	.word	0
-	.word	0
-	.word	0
-	.word	0
-	
\ No newline at end of file
-- 
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