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bugfix in 16bit write in 8bit ram

This commit is contained in:
IniKiwi 2022-08-16 11:21:41 +02:00
parent 4bf74d7664
commit 2d7bc9df92
1 changed files with 4 additions and 3 deletions
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7
src/cpu.c
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@ -152,7 +152,8 @@ void cpu_write32(cpu_status_t* status, uint32_t addr, uint32_t data){
void cpu_write16(cpu_status_t* status, uint32_t addr, uint16_t data){
if(addr >=0x08100000 && addr <= 0x08100000+524288){
memcpy(&status->ram[addr-0x08100000],&data, 2);
status->ram[addr-0x08100000] = (data >> 8) & 0xFF;
status->ram[addr-0x08100000+1] = data & 0xFF;
}
/*else if(addr >=0x00300200 && addr <= 0x00300200+status->program_size){
memcpy(&status->rom[addr-0x00300200], &addr, 2);
@ -227,7 +228,7 @@ int cpu_execute(cpu_status_t* status){
else if(nibble[0] == 0b0000 && nibble[3] == 0b1110) instruction_movl_r0_r_r(status);
else if(nibble[0] == 0b0000 && nibble[3] == 0b0110) instruction_movl_r_r0_r(status);
else if(nibble[0] == 0b1100 && nibble[1] == 0b0110) instruction_movl_disp_gbr_r0(status);
// good
else if(nibble[0] == 0b1000 && nibble[1] == 0b0001) instruction_movw_r0_disp_r(status);
else if(nibble[0] == 0b1000 && nibble[1] == 0b0101) instruction_movw_disp_r_r0(status);
else if(nibble[0] == 0b1001) instruction_movw_disp_pc_r0(status);
@ -238,7 +239,7 @@ int cpu_execute(cpu_status_t* status){
else if(nibble[0] == 0b0000 && nibble[3] == 0b1101) instruction_movw_r0_r_r(status);
else if(nibble[0] == 0b1100 && nibble[1] == 0b0101) instruction_movw_disp_gbr_r0(status);
else if(nibble[0] == 0b0000 && nibble[3] == 0b0101) instruction_movw_r_r0_r(status);
// good
else if(nibble[0] == 0b0110 && nibble[3] == 0b0000) instruction_movb_ar_r(status);
else if(nibble[0] == 0b0010 && nibble[3] == 0b0000) instruction_movb_r_ar(status);
else if(nibble[0] == 0b0110 && nibble[3] == 0b0100) instruction_movb_arp_r(status);