PM Bios

The BIOS Overview

The internal BIOS consists of a 4kB program image built to initialize the system, bring it out of sleep and various other system specific tasks. Since the Pokemon Mini is never technically off, only suspended, BIOS is used for tasks like enabling power to the system and responding to various at rest IRQs.

The BIOS image begins with a 256 byte IRQ vector table, consisting of 128 16-bit vectors. The system reserves 32 vectors for hardware IRQs, the rest are used for software calls.

The IRQ Vector Table

Bios IRQ Vector Table

IRQ	Cart IRQ	Hardware Strobe	Description
$00
$01
$02
$03
$04
$05
$06
$07
$08
$09
$0A
$0B
$0C
$0D
$0E
$0F
$10
$11
$12
$13
$14
$15
$16
$17
$18
$19
$1A
$1B
$1C
$1D
$1E
$1F
$20
$21
$22
$23
$24
$25
$26
$27
$28
$29
$2A
$2B
$2C
$2D
$2E
$2F
$30
$31
$32
$33
$34
$35
$36
$37
$38
$39
$3A
$3B
$3C
$3D
$3E
$3F
$40
$41
$42
$43
$44
$45
$46
$47
$48
$49
$4A
$4B
$4C
$4D
$4E
$4F
$50
$51
$52
$53
$54
$55
$56
$57
$58
$59
$5A
$5B
$5C
$5D
$5E
$5F
$60
$61
$62
$63
$64
$65
$66
$67
$68
$69
$6A
$6B
$6C
$6D
$6E
$6F
$70
$71
$72
$73
$74
$75
$76
$77
$78
$79
$7A
$7B
$7C
$7D
$7E
$7F