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| /target |
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| [package] | ||
| name = "rust-gba-game" | ||
| version = "0.1.0" | ||
| authors = ["grgr-dkrk <[email protected]>"] | ||
| edition = "2018" | ||
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| # See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html | ||
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| [dependencies] |
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| # Rust-GBA-Game | ||
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|
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| .arm | ||
| __start: | ||
| b .Linit | ||
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| @ ROM header | ||
| .byte 0x24,0xff,0xae,0x51,0x69,0x9a,0xa2,0x21,0x3d,0x84,0x82,0x0a,0x84,0xe4,0x09,0xad | ||
| .byte 0x11,0x24,0x8b,0x98,0xc0,0x81,0x7f,0x21,0xa3,0x52,0xbe,0x19,0x93,0x09,0xce,0x20 | ||
| .byte 0x10,0x46,0x4a,0x4a,0xf8,0x27,0x31,0xec,0x58,0xc7,0xe8,0x33,0x82,0xe3,0xce,0xbf | ||
| .byte 0x85,0xf4,0xdf,0x94,0xce,0x4b,0x09,0xc1,0x94,0x56,0x8a,0xc0,0x13,0x72,0xa7,0xfc | ||
| .byte 0x9f,0x84,0x4d,0x73,0xa3,0xca,0x9a,0x61,0x58,0x97,0xa3,0x27,0xfc,0x03,0x98,0x76 | ||
| .byte 0x23,0x1d,0xc7,0x61,0x03,0x04,0xae,0x56,0xbf,0x38,0x84,0x00,0x40,0xa7,0x0e,0xfd | ||
| .byte 0xff,0x52,0xfe,0x03,0x6f,0x95,0x30,0xf1,0x97,0xfb,0xc0,0x85,0x60,0xd6,0x80,0x25 | ||
| .byte 0xa9,0x63,0xbe,0x03,0x01,0x4e,0x38,0xe2,0xf9,0xa2,0x34,0xff,0xbb,0x3e,0x03,0x44 | ||
| .byte 0x78,0x00,0x90,0xcb,0x88,0x11,0x3a,0x94,0x65,0xc0,0x7c,0x63,0x87,0xf0,0x3c,0xaf | ||
| .byte 0xd6,0x25,0xe4,0x8b,0x38,0x0a,0xac,0x72,0x21,0xd4,0xf8,0x07 | ||
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| @ game title | ||
| .byte 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00 | ||
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| @ game code | ||
| .byte 0x00,0x00,0x00,0x00 | ||
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| @ maker code | ||
| .byte 0x00,0x00 | ||
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| .byte 0x96 | ||
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| @ main unit code | ||
| .byte 0x00 | ||
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| @ device type (0x00 retail, 0x80 debug) | ||
| .byte 0x00 | ||
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| @ reserved | ||
| .byte 0x00,0x00,0x00,0x00,0x00,0x00,0x00 | ||
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| @ software version | ||
| .byte 0x00 | ||
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| @ complement check | ||
| .byte 0x51 | ||
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| @ reserved area | ||
| .space 2 | ||
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| .Linit: | ||
| @ Set address of user IRQ handler | ||
| ldr r0, =MainIrqHandler | ||
| ldr r1, =0x03FFFFFC | ||
| str r0, [r1] | ||
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| @ set IRQ stack pointer | ||
| mov r0, #0x12 | ||
| msr CPSR_c, r0 | ||
| ldr sp, =0x3007fa0 | ||
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| @ set user stack pointer | ||
| mov r0, #0x1f | ||
| msr CPSR_c, r0 | ||
| ldr sp, =0x3007f00 | ||
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| @ copy .data section to IWRAM | ||
| ldr r0, =__data_lma @ source address | ||
| ldr r1, =__data_start @ destination address | ||
| ldr r2, =__data_end | ||
| subs r2, r1 @ length | ||
| @ these instructions are only executed if r2 is nonzero | ||
| @ (i.e. don't bother copying an empty .data section) | ||
| addne r2, #3 | ||
| asrne r2, #2 | ||
| addne r2, #0x04000000 | ||
| swine 0xb0000 | ||
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| @ jump to user code | ||
| ldr r0, =main | ||
| bx r0 | ||
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| .arm | ||
| .global MainIrqHandler | ||
| .align 4, 0 | ||
| MainIrqHandler: | ||
| @ Load base I/O register address | ||
| mov r2, #0x04000000 | ||
| add r2, r2, #0x200 | ||
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| @ Save IRQ stack pointer and IME | ||
| mrs r0, spsr | ||
| ldrh r1, [r2, #8] | ||
| stmdb sp!, {r0-r2,lr} | ||
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| @ Disable all interrupts by writing to IME | ||
| @ r2 (0x4000200) can be used as we only care about bit 0 being unset | ||
| strh r2, [r2, #8] | ||
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| @ Acknowledge all received interrupts that were enabled in IE | ||
| ldr r3, [r2, #0] | ||
| and r0, r3, r3, lsr #16 | ||
| strh r0, [r2, #2] | ||
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| @ Switch from IRQ mode to system mode | ||
| @ cpsr_c = 0b000_10010u8 | 0b000_01101u8 | ||
| mrs r2, cpsr | ||
| orr r2, r2, #0xD | ||
| msr cpsr_c, r2 | ||
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| @ Jump to user specified IRQ handler | ||
| ldr r2, =__IRQ_HANDLER | ||
| ldr r1, [r2] | ||
| stmdb sp!, {lr} | ||
| adr lr, .Lreturn | ||
| bx r1 | ||
| .Lreturn: | ||
| ldmia sp!, {lr} | ||
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| @ Switch from ??? mode to IRQ mode, disable IRQ | ||
| @ cpsr_c = ( !0b000_01101u8 & cpsr_c ) | 0b100_10010u8 | ||
| mrs r2, cpsr | ||
| bic r2, r2, #0xD | ||
| orr r2, r2, #0x92 | ||
| msr cpsr_c, r2 | ||
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| @ Restore IRQ stack pointer and IME | ||
| ldmia sp!, {r0-r2,lr} | ||
| strh r1, [r2, #8] | ||
| msr spsr_cf, r0 | ||
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| @ Return to BIOS IRQ handler | ||
| bx lr | ||
| .pool |
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| ENTRY(__start) | ||
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| MEMORY { | ||
| ewram (w!x) : ORIGIN = 0x2000000, LENGTH = 256K | ||
| iwram (w!x) : ORIGIN = 0x3000000, LENGTH = 32K | ||
| rom (rx) : ORIGIN = 0x8000000, LENGTH = 32M | ||
| } | ||
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| SECTIONS { | ||
| .text : { | ||
| KEEP(target/crt0.o(.text)); | ||
| *(.text .text.*); | ||
| . = ALIGN(4); | ||
| } >rom = 0xff | ||
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| .rodata : { | ||
| *(.rodata .rodata.*); | ||
| . = ALIGN(4); | ||
| } >rom = 0xff | ||
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| __data_lma = .; | ||
| .data : { | ||
| __data_start = ABSOLUTE(.); | ||
| *(.data .data.*); | ||
| . = ALIGN(4); | ||
| __data_end = ABSOLUTE(.); | ||
| } >iwram AT>rom = 0xff | ||
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| .bss : { | ||
| *(.bss .bss.*); | ||
| . = ALIGN(4); | ||
| __bss_end = ABSOLUTE(.); | ||
| } >iwram | ||
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| /* debugging sections */ | ||
| /* Stabs */ | ||
| .stab 0 : { *(.stab) } | ||
| .stabstr 0 : { *(.stabstr) } | ||
| .stab.excl 0 : { *(.stab.excl) } | ||
| .stab.exclstr 0 : { *(.stab.exclstr) } | ||
| .stab.index 0 : { *(.stab.index) } | ||
| .stab.indexstr 0 : { *(.stab.indexstr) } | ||
| .comment 0 : { *(.comment) } | ||
| /* DWARF 1 */ | ||
| .debug 0 : { *(.debug) } | ||
| .line 0 : { *(.line) } | ||
| /* GNU DWARF 1 extensions */ | ||
| .debug_srcinfo 0 : { *(.debug_srcinfo) } | ||
| .debug_sfnames 0 : { *(.debug_sfnames) } | ||
| /* DWARF 1.1 and DWARF 2 */ | ||
| .debug_aranges 0 : { *(.debug_aranges) } | ||
| .debug_pubnames 0 : { *(.debug_pubnames) } | ||
| /* DWARF 2 */ | ||
| .debug_info 0 : { *(.debug_info) } | ||
| .debug_abbrev 0 : { *(.debug_abbrev) } | ||
| .debug_line 0 : { *(.debug_line) } | ||
| .debug_frame 0 : { *(.debug_frame) } | ||
| .debug_str 0 : { *(.debug_str) } | ||
| .debug_loc 0 : { *(.debug_loc) } | ||
| .debug_macinfo 0 : { *(.debug_macinfo) } | ||
| /* SGI/MIPS DWARF 2 extensions */ | ||
| .debug_weaknames 0 : { *(.debug_weaknames) } | ||
| .debug_funcnames 0 : { *(.debug_funcnames) } | ||
| .debug_typenames 0 : { *(.debug_typenames) } | ||
| .debug_varnames 0 : { *(.debug_varnames) } | ||
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| /* discard anything not already mentioned */ | ||
| /DISCARD/ : { *(*) } | ||
| } |
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| #![no_std] | ||
| #![feature(start)] | ||
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| #[panic_handler] | ||
| fn panic(_info: &core::panic::PanicInfo) -> ! { | ||
| loop {} | ||
| } | ||
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| #[start] | ||
| fn main(_argc: isize, _argv: *const *const u8) -> isize { | ||
| unsafe { | ||
| (0x400_0000 as *mut u16).write_volatile(0x0403); | ||
| (0x600_0000 as *mut u16).offset(120 + 80 * 240).write_volatile(0x001F); | ||
| (0x600_0000 as *mut u16).offset(136 + 80 * 240).write_volatile(0x03E0); | ||
| (0x600_0000 as *mut u16).offset(120 + 96 * 240).write_volatile(0x7C00); | ||
| loop {} | ||
| } | ||
| } | ||
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| #[no_mangle] | ||
| static __IRQ_HANDLER: extern "C" fn() = irq_handler; | ||
|
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| extern "C" fn irq_handler() {} |
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| { | ||
| "abi-blacklist": [ | ||
| "stdcall", | ||
| "fastcall", | ||
| "vectorcall", | ||
| "thiscall", | ||
| "win64", | ||
| "sysv64" | ||
| ], | ||
| "arch": "arm", | ||
| "atomic-cas": false, | ||
| "cpu": "arm7tdmi", | ||
| "data-layout": "e-m:e-p:32:32-i64:64-v128:64:128-a:0:32-n32-S64", | ||
| "emit-debug-gdb-scripts": false, | ||
| "env": "agb", | ||
| "executables": true, | ||
| "features": "+soft-float,+strict-align", | ||
| "linker": "arm-none-eabi-ld", | ||
| "linker-flavor": "ld", | ||
| "linker-is-gnu": true, | ||
| "llvm-target": "thumbv4-none-agb", | ||
| "os": "none", | ||
| "panic-strategy": "abort", | ||
| "pre-link-args-crt": { | ||
| "ld": [ | ||
| "crt0.o" | ||
| ] | ||
| }, | ||
| "pre-link-args": { | ||
| "ld": [ | ||
| "-Tlinker.ld" | ||
| ] | ||
| }, | ||
| "relocation-model": "static", | ||
| "target-c-int-width": "32", | ||
| "target-endian": "little", | ||
| "target-pointer-width": "32", | ||
| "vendor": "nintendo" | ||
| } |