mirror of
https://github.com/italicsjenga/gba.git
synced 2024-12-23 19:01:30 +11:00
Update bios module to just build on x86
the actual functions are all unimplemented!() but oh well
This commit is contained in:
Lokathor
parent
e3c3b572dd
commit
8ff32b0304
189
src/bios.rs
189
src/bios.rs
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@ -8,6 +8,8 @@
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//! whatever value is necessary for that function). Some functions also perform
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//! necessary checks to save you from yourself, such as not dividing by zero.
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#![cfg_attr(not(all(target_vendor = "nintendo", target_env = "agb")), allow(unused_variables))]
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use super::*;
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//TODO: ALL functions in this module should have `if cfg!(test)` blocks. The
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@ -51,9 +53,12 @@ use super::*;
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/// perform UB, but such a scenario might exist.
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#[inline(always)]
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pub unsafe fn soft_reset() -> ! {
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if cfg!(test) {
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panic!("Attempted soft reset during testing");
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} else {
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#[cfg(not(all(target_vendor = "nintendo", target_env = "agb")))]
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{
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unimplemented!()
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}
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#[cfg(all(target_vendor = "nintendo", target_env = "agb"))]
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{
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asm!(/* ASM */ "swi 0x00"
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:/* OUT */ // none
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:/* INP */ // none
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@ -91,9 +96,12 @@ pub unsafe fn soft_reset() -> ! {
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/// that. If you do then you return to nothing and have a bad time.
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#[inline(always)]
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pub unsafe fn register_ram_reset(flags: RegisterRAMResetFlags) {
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if cfg!(test) {
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// do nothing in test mode
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} else {
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#[cfg(not(all(target_vendor = "nintendo", target_env = "agb")))]
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{
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unimplemented!()
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}
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#[cfg(all(target_vendor = "nintendo", target_env = "agb"))]
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{
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asm!(/* ASM */ "swi 0x01"
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:/* OUT */ // none
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:/* INP */ "{r0}"(flags.0)
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@ -127,9 +135,12 @@ impl RegisterRAMResetFlags {
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/// any enabled interrupt triggers.
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#[inline(always)]
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pub fn halt() {
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if cfg!(test) {
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// do nothing in test mode
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} else {
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#[cfg(not(all(target_vendor = "nintendo", target_env = "agb")))]
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{
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unimplemented!()
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}
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#[cfg(all(target_vendor = "nintendo", target_env = "agb"))]
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{
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unsafe {
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asm!(/* ASM */ "swi 0x02"
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:/* OUT */ // none
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@ -151,9 +162,12 @@ pub fn halt() {
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/// optional externals such as rumble and infra-red.
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#[inline(always)]
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pub fn stop() {
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if cfg!(test) {
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// do nothing in test mode
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} else {
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#[cfg(not(all(target_vendor = "nintendo", target_env = "agb")))]
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{
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unimplemented!()
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}
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#[cfg(all(target_vendor = "nintendo", target_env = "agb"))]
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{
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unsafe {
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asm!(/* ASM */ "swi 0x03"
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:/* OUT */ // none
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@ -180,9 +194,12 @@ pub fn stop() {
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/// acknowledgement.
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#[inline(always)]
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pub fn interrupt_wait(ignore_current_flags: bool, target_flags: u16) {
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if cfg!(test) {
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// do nothing in test mode
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} else {
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#[cfg(not(all(target_vendor = "nintendo", target_env = "agb")))]
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{
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unimplemented!()
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}
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#[cfg(all(target_vendor = "nintendo", target_env = "agb"))]
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{
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unsafe {
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asm!(/* ASM */ "swi 0x04"
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:/* OUT */ // none
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@ -201,9 +218,12 @@ pub fn interrupt_wait(ignore_current_flags: bool, target_flags: u16) {
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/// must follow the same guidelines that `interrupt_wait` outlines.
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#[inline(always)]
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pub fn vblank_interrupt_wait() {
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if cfg!(test) {
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// do nothing in test mode
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} else {
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#[cfg(not(all(target_vendor = "nintendo", target_env = "agb")))]
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{
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unimplemented!()
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}
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#[cfg(all(target_vendor = "nintendo", target_env = "agb"))]
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{
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unsafe {
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asm!(/* ASM */ "swi 0x04"
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:/* OUT */ // none
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@ -223,9 +243,12 @@ pub fn vblank_interrupt_wait() {
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#[inline(always)]
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pub fn div_rem(numerator: i32, denominator: i32) -> (i32, i32) {
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assert!(denominator != 0);
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if cfg!(test) {
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#[cfg(not(all(target_vendor = "nintendo", target_env = "agb")))]
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{
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(numerator / denominator, numerator % denominator)
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} else {
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}
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#[cfg(all(target_vendor = "nintendo", target_env = "agb"))]
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{
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let div_out: i32;
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let rem_out: i32;
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unsafe {
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@ -262,9 +285,12 @@ pub fn rem(numerator: i32, denominator: i32) -> i32 {
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/// by `2n` bits to get `n` more bits of fractional precision in your output.
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#[inline(always)]
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pub fn sqrt(val: u32) -> u16 {
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if cfg!(test) {
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0 // TODO: simulate this properly during testing builds.
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} else {
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#[cfg(not(all(target_vendor = "nintendo", target_env = "agb")))]
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{
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0 // TODO: simulate this properly when not on GBA
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}
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#[cfg(all(target_vendor = "nintendo", target_env = "agb"))]
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{
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let out: u16;
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unsafe {
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asm!(/* ASM */ "swi 0x08"
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@ -286,9 +312,12 @@ pub fn sqrt(val: u32) -> u16 {
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/// Accuracy suffers if `theta` is less than `-pi/4` or greater than `pi/4`.
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#[inline(always)]
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pub fn atan(theta: i16) -> i16 {
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if cfg!(test) {
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0 // TODO: simulate this properly during testing builds.
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} else {
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#[cfg(not(all(target_vendor = "nintendo", target_env = "agb")))]
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{
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0 // TODO: simulate this properly when not on GBA
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}
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#[cfg(all(target_vendor = "nintendo", target_env = "agb"))]
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{
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let out: i16;
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unsafe {
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asm!(/* ASM */ "swi 0x09"
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@ -311,9 +340,12 @@ pub fn atan(theta: i16) -> i16 {
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/// integral, 14 bits for fractional.
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#[inline(always)]
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pub fn atan2(y: i16, x: i16) -> u16 {
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if cfg!(test) {
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0 // TODO: simulate this properly during testing builds.
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} else {
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#[cfg(not(all(target_vendor = "nintendo", target_env = "agb")))]
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{
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0 // TODO: simulate this properly when not on GBA
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}
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#[cfg(all(target_vendor = "nintendo", target_env = "agb"))]
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{
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let out: u16;
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unsafe {
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asm!(/* ASM */ "swi 0x0A"
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@ -338,9 +370,12 @@ pub fn atan2(y: i16, x: i16) -> u16 {
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/// * Both pointers must be aligned
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#[inline(always)]
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pub unsafe fn cpu_set16(src: *const u16, dest: *mut u16, count: u32, fixed_source: bool) {
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if cfg!(test) {
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// do nothing in test mode
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} else {
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#[cfg(not(all(target_vendor = "nintendo", target_env = "agb")))]
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{
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unimplemented!()
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}
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#[cfg(all(target_vendor = "nintendo", target_env = "agb"))]
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{
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let control = count + ((fixed_source as u32) << 24);
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asm!(/* ASM */ "swi 0x0B"
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:/* OUT */ // none
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@ -362,9 +397,12 @@ pub unsafe fn cpu_set16(src: *const u16, dest: *mut u16, count: u32, fixed_sourc
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/// * Both pointers must be aligned
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#[inline(always)]
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pub unsafe fn cpu_set32(src: *const u32, dest: *mut u32, count: u32, fixed_source: bool) {
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if cfg!(test) {
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// do nothing in test mode
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} else {
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#[cfg(not(all(target_vendor = "nintendo", target_env = "agb")))]
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{
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unimplemented!()
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}
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#[cfg(all(target_vendor = "nintendo", target_env = "agb"))]
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{
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let control = count + ((fixed_source as u32) << 24) + (1 << 26);
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asm!(/* ASM */ "swi 0x0B"
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:/* OUT */ // none
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@ -387,9 +425,12 @@ pub unsafe fn cpu_set32(src: *const u32, dest: *mut u32, count: u32, fixed_sourc
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/// * Both pointers must be aligned
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#[inline(always)]
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pub unsafe fn cpu_fast_set(src: *const u32, dest: *mut u32, count: u32, fixed_source: bool) {
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if cfg!(test) {
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// do nothing in test mode
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} else {
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#[cfg(not(all(target_vendor = "nintendo", target_env = "agb")))]
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{
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unimplemented!()
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}
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#[cfg(all(target_vendor = "nintendo", target_env = "agb"))]
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{
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let control = count + ((fixed_source as u32) << 24);
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asm!(/* ASM */ "swi 0x0C"
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:/* OUT */ // none
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@ -410,9 +451,12 @@ pub unsafe fn cpu_fast_set(src: *const u32, dest: *mut u32, count: u32, fixed_so
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/// some other value I guess you're probably running on an emulator that just
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/// broke the fourth wall.
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pub fn get_bios_checksum() -> u32 {
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if cfg!(test) {
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0
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} else {
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#[cfg(not(all(target_vendor = "nintendo", target_env = "agb")))]
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{
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unimplemented!()
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}
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#[cfg(all(target_vendor = "nintendo", target_env = "agb"))]
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{
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let out: u32;
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unsafe {
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asm!(/* ASM */ "swi 0x0D"
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@ -447,9 +491,12 @@ pub fn get_bios_checksum() -> u32 {
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///
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/// The final sound level setting will be `level` * `0x200`.
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pub fn sound_bias(level: u32) {
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if cfg!(test) {
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// do nothing in test mode
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} else {
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#[cfg(not(all(target_vendor = "nintendo", target_env = "agb")))]
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{
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unimplemented!()
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}
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#[cfg(all(target_vendor = "nintendo", target_env = "agb"))]
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{
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unsafe {
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asm!(/* ASM */ "swi 0x19"
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:/* OUT */ // none
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@ -489,9 +536,12 @@ pub fn sound_bias(level: u32) {
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/// * 10: 40137
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/// * 11: 42048
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pub fn sound_driver_mode(mode: u32) {
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if cfg!(test) {
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// do nothing in test mode
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} else {
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#[cfg(not(all(target_vendor = "nintendo", target_env = "agb")))]
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{
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unimplemented!()
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}
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#[cfg(all(target_vendor = "nintendo", target_env = "agb"))]
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{
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unsafe {
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asm!(/* ASM */ "swi 0x1B"
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:/* OUT */ // none
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@ -513,9 +563,12 @@ pub fn sound_driver_mode(mode: u32) {
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/// executed." --what?
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#[inline(always)]
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pub fn sound_driver_main() {
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if cfg!(test) {
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// do nothing in test mode
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} else {
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#[cfg(not(all(target_vendor = "nintendo", target_env = "agb")))]
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{
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unimplemented!()
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}
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#[cfg(all(target_vendor = "nintendo", target_env = "agb"))]
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{
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unsafe {
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asm!(/* ASM */ "swi 0x1C"
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:/* OUT */ // none
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@ -533,9 +586,12 @@ pub fn sound_driver_main() {
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/// vblank interrupt (every 1/60th of a second).
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#[inline(always)]
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pub fn sound_driver_vsync() {
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if cfg!(test) {
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// do nothing in test mode
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} else {
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#[cfg(not(all(target_vendor = "nintendo", target_env = "agb")))]
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{
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unimplemented!()
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}
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#[cfg(all(target_vendor = "nintendo", target_env = "agb"))]
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{
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unsafe {
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asm!(/* ASM */ "swi 0x1D"
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:/* OUT */ // none
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@ -555,9 +611,12 @@ pub fn sound_driver_vsync() {
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/// --what?
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#[inline(always)]
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pub fn sound_channel_clear() {
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if cfg!(test) {
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// do nothing in test mode
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} else {
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#[cfg(not(all(target_vendor = "nintendo", target_env = "agb")))]
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{
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unimplemented!()
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}
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#[cfg(all(target_vendor = "nintendo", target_env = "agb"))]
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{
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unsafe {
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asm!(/* ASM */ "swi 0x1E"
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:/* OUT */ // none
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@ -580,9 +639,12 @@ pub fn sound_channel_clear() {
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/// noise.
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#[inline(always)]
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pub fn sound_driver_vsync_off() {
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if cfg!(test) {
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// do nothing in test mode
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} else {
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#[cfg(not(all(target_vendor = "nintendo", target_env = "agb")))]
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{
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unimplemented!()
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}
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#[cfg(all(target_vendor = "nintendo", target_env = "agb"))]
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{
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unsafe {
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asm!(/* ASM */ "swi 0x28"
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:/* OUT */ // none
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@ -601,9 +663,12 @@ pub fn sound_driver_vsync_off() {
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/// interrupt followed by a `sound_driver_vsync` within 2/60th of a second.
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#[inline(always)]
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pub fn sound_driver_vsync_on() {
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if cfg!(test) {
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// do nothing in test mode
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} else {
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#[cfg(not(all(target_vendor = "nintendo", target_env = "agb")))]
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{
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unimplemented!()
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}
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#[cfg(all(target_vendor = "nintendo", target_env = "agb"))]
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{
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unsafe {
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asm!(/* ASM */ "swi 0x29"
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:/* OUT */ // none
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@ -2,6 +2,7 @@
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#![feature(asm)]
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#![feature(const_int_wrapping)]
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#![feature(const_int_rotate)]
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#![feature(cfg_target_vendor)]
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#![allow(clippy::cast_lossless)]
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#![deny(clippy::float_arithmetic)]
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//#![warn(missing_docs)]
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